Page 1: Table Of Contents
2007 GMC TopKick Owner Manual Seats and Restraint Systems ....... 7 Driving Your Vehicle ......... 201 Front Seats ..........9 Your Driving, the Road, and Your Vehicle ..........202 Rear Seats ..........20 Towing ..........237 Safety Belts ..........21 Child Restraints ........
Page 2 Electrical System ........341 Customer Assistance Information ..... 403 Capacities and Speciﬁcations ....348 Customer Assistance and Information ... 404 Normal Maintenance Replacement Reporting Safety Defects ...... 414 Parts ..........354 Index ............417 Maintenance Schedule ......359 Maintenance Schedule ......
Page 3: Canadian Owners
If the GENERAL MOTORS, GM, the GM Emblem, vehicle is sold, leave this manual in the vehicle. GMC, the GMC Truck Emblem, and the name TOPKICK are registered trademarks of General Motors Corporation.
Page 4: How To Use This Manual
How to Use This Manual CAUTION: Many people read the owner manual from beginning to end when they ﬁrst receive their new vehicle. If this is done, it can help you learn These mean there is something that could about the features and controls for the vehicle. hurt you or other people.
Page 5: Vehicle Symbols
Vehicle Damage Warnings Vehicle Symbols Also, in this manual you will ﬁnd these notices: The vehicle has components and labels that use symbols instead of text. Symbols are shown along Notice: These mean there is something with the text describing the operation or information that could damage your vehicle.
Page 6 These are some examples of symbols that may be found on the vehicle:...
Page 7: Seats And Restraint Systems
Section 1 Seats and Restraint Systems Front Seats ............. 9 Child Restraints ..........42 Bucket Seats ..........9 Older Children ..........42 Split Bench Seat (80/20 Split) ..... 13 Infants and Young Children ......45 Air Suspension Seats ........13 Child Restraint Systems ......
Page 8 Section 1 Seats and Restraint Systems Airbag System ..........68 Servicing Your Airbag-Equipped Vehicle ..79 Where Are the Airbags? ......71 Adding Equipment to Your When Should an Airbag Inﬂate? ....73 Airbag-Equipped Vehicle ......80 What Makes an Airbag Inﬂate? ....74 Restraint System Check .......
Page 9: Front Seats
Front Seats Bucket Seats If your vehicle has bucket seats, you can adjust the seats several different ways. Fore-and-Aft Adjustment CAUTION: You can lose control of the vehicle if you try to adjust the seat while the vehicle is You can adjust the seat forward or rearward with moving.
Page 10 Lumbar Adjustment Seatback Adjustment Your seats may have this feature. CAUTION: The lumbar adjustment knob is located on the seatback, on the You can lose control of the vehicle if you inboard side of the try to adjust a manual driver’s seat while driver’s seat and on the the vehicle is moving.
Page 11 To return the seatback to an upright position, do the following: 1. Lift the lever fully without applying pressure to the seatback and the seatback will return to the upright position. 2. Push and pull on the seatback to make sure it is locked.
Page 12 CAUTION: Sitting in a reclined position when your vehicle is in motion can be dangerous. Even if you buckle up, your safety belts cannot do their job when you are reclined like this. The shoulder belt cannot do its job. In a crash, you could go into it, receiving neck or other injuries.
Page 13: Split Bench Seat (80/20 Split)
Split Bench Seat (80/20 Split) If your vehicle has a split bench seat, the passenger seat is not adjustable. There is a storage area underneath the seat cushion. See Storage Areas on page 134. Air Suspension Seats Your vehicle may have a low-back or high-back air suspension seat.
Page 14 Height Adjustment Seat Height Adjustment Switch Seat Height Adjustment Lever If your vehicle has an air suspension seat height adjustment lever, it is located on the front inboard side of the seat.
Page 15 To adjust the height of the air suspension seat, If your vehicle has this pull the lever up to inﬂate. Push the lever down feature, the seat cushion to deﬂate. height adjustment handle is located If your vehicle has an air suspension seat height underneath the front adjustment switch, it is located below the front of the seat.
Page 16 Lumbar Adjustment Lumbar Adjustment Switch Lumbar Adjustment Knob If your vehicle has a lumbar adjustment knob, it is located on the inboard side of the driver’s seatback, or on the outboard side of the passenger’s seatback.
Page 17 Seatback Adjustment For more support to your lower back, turn the lumbar adjustment knob clockwise. To decrease Your vehicle has one of the following seatback the amount of lumbar support, turn the knob adjustment levers. counterclockwise. If your vehicle has a lumbar adjustment switch, it is located below the front of the seat cushion on the outboard side of the seat.
Page 18 To return the seatback to an upright position, do the following: 1. Lift the lever fully without applying pressure to the seatback and the seatback will return to the upright position. 2. Push and pull on the seatback to make sure it is locked.
Page 19 Chugger-Snubber Lock-Out Feature CAUTION: If your vehicle has this feature, the handle is Sitting in a reclined position when your located on the outboard vehicle is in motion can be dangerous. side of the driver’s Even if you buckle up, your safety belts and passenger’s seats.
Page 20: Rear Seats
Rear Seats To fold down the seatback, pull this nylon strap located on the Rear Seat Operation rear of the seat, Folding the Rear Seat (Crew Cab) while pulling the seatback down. CAUTION: A safety belt that is improperly routed, not properly attached, or twisted will not To raise a seatback, pull the nylon strap while provide the protection needed in a crash.
Page 21: Safety Belts
Safety Belts CAUTION: Safety Belts: They Are for Everyone It is extremely dangerous to ride in a This part of the manual tells you how to use cargo area, inside or outside of a vehicle. safety belts properly. It also tells you some things In a collision, people riding in these areas you should not do with safety belts.
Page 22 Why Safety Belts Work In most states and in all Canadian provinces, the law says to wear safety belts. Here is why: They work. Aren’t safety belts for kids? You never know if you will be in a crash. If you Yes.
Page 23 If the vehicle hits something, it stops – right then. Then something will stop them. It could be the But nothing stops the people. They keep moving. windshield.
Page 24 Or it could be the instrument panel. With safety belts, you slow down as the vehicle does. You get more time to stop. Now, what if you and your passengers were to give that big vehicle a chance to deal with You stop over more distance, and your strongest the force of the impact, instead of you? bones take the forces.
Page 25 Questions and Answers About If I am a good driver, and I never drive far from home, why should I wear safety belts? Safety Belts You may be an excellent driver, but if you are in an accident — even one that is not your Will I be trapped in the vehicle after an fault —...
Page 26: How To Wear Safety Belts Properly
How to Wear Safety Belts Properly This part is only for people of adult size. Be aware that there are special things to know about safety belts and children. And there are different rules for smaller children and babies. If a child will be riding in your vehicle, see Older Children on page 42 or Infants and Young Children on page 45.
Page 27 4. Push the latch plate into the buckle until it clicks. Pull up on the latch plate to make sure it is secure. If the belt is not long enough, see Safety Belt Extender on page 41. Make sure the release button on the buckle is positioned so you would be able to unbuckle the safety belt quickly if you ever had to.
Page 28 The lap part of the belt should be worn low and snug on the hips, just touching the thighs. In a crash, this applies force to the strong pelvic bones. And you would be less likely to slide under the lap belt. If you slid under it, the belt would apply force at your abdomen.
Page 29 What is wrong with this? CAUTION: You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should ﬁt against your body. The shoulder belt is too loose. It will not give nearly as much protection this way.
Page 30 What is wrong with this? CAUTION: You can be seriously hurt if your lap belt is too loose. In a crash, you could slide under the lap belt and apply force at your abdomen. This could cause serious or even fatal injuries. The lap belt should be worn low and snug on the hips, just touching the thighs.
Page 31 What is wrong with this? CAUTION: You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not at the pelvic bones. This could cause serious internal injuries.
Page 32 What is wrong with this? CAUTION: You can be seriously injured if your belt goes over an armrest like this. The belt would be much too high. In a crash, you can slide under the belt. The belt force would then be applied at the abdomen, not at the pelvic bones, and that could cause serious or fatal injuries.
Page 33 What is wrong with this? CAUTION: You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the ribs, which are not as strong as shoulder bones.
Page 34 What is wrong with this? CAUTION: You can be seriously injured by a twisted belt. In a crash, you would not have the full width of the belt to spread impact forces. If a belt is twisted, make it straight so it can work properly, or ask your dealer to ﬁx it.
Page 35: Shoulder Belt Height Adjustment
Shoulder Belt Height Adjustment Before you begin to drive, move the shoulder belt height adjuster to the height that is right for you. Adjust the height so that the shoulder portion of the belt is centered on your shoulder. The belt should be away from your face and neck, but not falling off your shoulder.
Page 36: Safety Belt Use During Pregnancy
Safety Belt Use During Pregnancy The best way to protect the fetus is to protect the mother. When a safety belt is worn properly, Safety belts work for everyone, including pregnant it is more likely that the fetus will not be hurt in women.
Page 37: Center Passenger Position
Center Passenger Position Lap Belt If your vehicle has a front bench seat, someone can sit in the center position. If your vehicle is a crew cab, someone can also sit in the center rear position. To make the belt shorter, pull its free end as shown until the belt is snug.
Page 38: Crew Cab
Rear Outside Passenger Positions (Crew Cab) It is very important for rear seat passengers to buckle up! Accident statistics show that unbelted people in the rear seat are hurt more often in crashes than those who are wearing safety belts. Rear passengers who are not safety belted can be thrown out of the vehicle in a crash.
Page 39 2. Push the latch plate into the buckle until it clicks. Pull up on the latch plate to make sure it is secure. When the shoulder belt is pulled out all the way, it will lock. If it does, let it go back all the way and start again.
Page 40 The shoulder belt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The safety belt locks if there is a sudden stop or a crash, or if you pull the belt very quickly out of the retractor.
Page 41: Safety Belt Extender
Safety Belt Extender If the vehicle’s safety belt will fasten around you, you should use it. But if a safety belt is not long enough, your dealer will order you an extender. When you go in to order it, take the heaviest coat you will wear, so the extender will be long enough for you.
Page 42: Child Restraints
Child Restraints What is the proper way to wear safety belts? Older Children If possible, an older child should wear a lap-shoulder belt and get the additional restraint a shoulder belt can provide. The shoulder belt should not cross the face or neck. The lap belt should ﬁt snugly below the hips, just touching the top of the thighs.
Page 43 What if a child is wearing a lap-shoulder belt, but the child is so small that the shoulder belt is very close to the child’s face or neck? Move the child toward the center of the vehicle, but be sure that the shoulder belt still is on the child’s shoulder, so that in a crash the child’s upper body would have the restraint that belts provide.
Page 44 CAUTION: Never do this. Here a child is sitting in a seat that has a lap-shoulder belt, but the shoulder part is behind the child. If the child wears the belt in this way, in a crash the child might slide under the belt.
Page 45: Infants And Young Children
Infants and Young Children CAUTION: Everyone in a vehicle needs protection! This includes infants and all other children. Neither the distance traveled nor the age and size of the Children can be seriously injured or traveler changes the need, for everyone, to use strangled if a shoulder belt is wrapped safety restraints.
Page 46 CAUTION: People should never hold a baby in their arms while riding in a vehicle. A baby does not weigh much — until a crash. During a crash a baby will become so heavy it is not possible to hold it. For example, in a crash at only 25 mph (40 km/h), a 12 lb (5.5 kg) baby will suddenly become a 240 lb (110 kg) force...
Page 47 CAUTION: Children who are up against, or very close to, any airbag when it inﬂates can be seriously injured or killed. Airbags plus lap-shoulder belts offer protection for adults and older children, but not for young children and infants. Neither the vehicle’s safety belt system nor its airbag system is designed for them.
Page 48 What are the different types of add-on child restraints? CAUTION: Add-on child restraints, which are purchased by the vehicle’s owner, are available in four basic Newborn infants need complete support, types. Selection of a particular restraint should including support for the head and neck. take into consideration not only the child’s This is necessary because a newborn weight, height, and age but also whether or not...
Page 49: Child Restraint Systems
The only answer is to have smaller children make the trip in another vehicle, where they can get CAUTION: the protection they need. The body structure of a young child is Child Restraint Systems quite unlike that of an adult or older child, for whom the safety belts are designed.
Page 50 A rear-facing infant seat (B) provides restraint A forward-facing child seat (C-E) provides restraint with the seating surface against the back of the for the child’s body with the harness and also infant. The harness system holds the infant sometimes with surfaces such as T-shaped in place and, in a crash, acts to keep the infant or shelf-like shields.
Page 51 How Should I Use a Child Restraint? A child restraint system is any device designed for use in a motor vehicle to restrain, seat, or position children. A built-in child restraint system is a permanent part of the motor vehicle. An add-on child restraint system is a portable one, which is purchased by the vehicle’s owner.
Page 52 Securing an Add-on Child Restraint in When securing an add-on child restraint, refer to the instructions that come with the restraint the Vehicle which may be on the restraint itself or in a booklet, or both, and to this manual. The child restraint instructions are important, so if they are not CAUTION: available, obtain a replacement copy from the...
Page 53 Securing the Child Within the Child Restraint CAUTION: There are several systems for securing the child A child can be seriously injured or killed within the child restraint. One system, the three-point harness, has straps that come down in a crash if the child is not properly over each of the infant’s shoulders and buckle secured in the child restraint.
Page 54: Where To Put The Restraint
Where to Put the Restraint to secure a child restraint in the right front passenger’s seat, there is a switch on the (Regular Cab Models) instrument panel that you can use to turn off the passenger’s airbag. See Airbag Off Switch on If your vehicle is a regular cab model with an page 76 and Securing a Child Restraint in air-suspension seat in the right front passenger’s...
Page 55: Crew Cab Models
Where to Put the Restraint CAUTION: (Continued) (Crew Cab Models) Accident statistics show that children are safer if Even though the airbag off switch is they are restrained in the rear rather than the front designed to turn off the passenger’s seat.
Page 56 Unless the passenger’s airbag has been turned off, never put a rear-facing child restraint in CAUTION: (Continued) this vehicle. Here is why: Even though the airbag off switch is designed to turn off the passenger’s CAUTION: airbag, no system is fail-safe, and no one can guarantee that an airbag will A child in a rear-facing child restraint can not deploy under some unusual...
Page 57: Lower Anchors And Tethers For Children (Latch)
Lower Anchors and Tethers for If your vehicle has an air-suspension seat in the right front passenger’s position, do not secure Children (LATCH) a child restraint there. Here is why: Some child restraints have a LATCH system. As part of the LATCH system, your child restraint may CAUTION: have lower attachments and/or a top tether.
Page 58: Securing A Child Restraint In A Rear Outside Seat Position
Securing a Child Restraint in a Your vehicle does not have lower anchors or top tether anchors to secure a child restraint with Rear Outside Seat Position the LATCH system. If a national or local law (Crew Cab Models) requires that your top tether be anchored, do not use a child restraint in this vehicle because a There are no top tether anchors in the rear top tether cannot be properly anchored.
Page 59 3. Buckle the belt. Make sure the release button 4. Pull the rest of the shoulder belt all the way is positioned so you would be able to unbuckle out of the retractor to set the lock. the safety belt quickly if you ever had to.
Page 60: Child Restraint In Center Rear Seat Position
To remove the child restraint, just unbuckle the vehicle’s safety belt and let it go back all the way. The safety belt will move freely again and be ready to work for an adult or larger child passenger. Securing a Child Restraint in the Center Rear Seat Position (Crew Cab) or Center Front Position There are no top tether anchors in these...
Page 61 CAUTION: A child in a child restraint in the center front seat can be badly injured or killed by the right front passenger airbag if it inﬂates. If your vehicle has airbags, never secure a child restraint in the center front seat.
Page 62 5. To tighten the belt, pull its free end while you push down on the child restraint. If you are using a forward-facing child restraint, you may ﬁnd it helpful to use your knee to push down on the child restraint as you tighten the belt. 6.
Page 63: Securing A Child Restraint In The Right Front Seat Position
Securing a Child Restraint in the If your vehicle has a right front passenger’s airbag, there is a switch on the instrument panel that you Right Front Seat Position can use to turn off the right front passenger’s airbag when you need to secure a child restraint in the Do not use a child restraint with an air right front passenger’s position.
Page 64 A rear seat is a safer place to secure a forward-facing child restraint. Never put a CAUTION: (Continued) rear-facing child restraint in the right front passenger’s seat unless the airbag is off. Even though the airbag off switch is Here is why: designed to turn off the passenger’s frontal airbag, no system is fail-safe, CAUTION:...
Page 65 You will be using the lap-shoulder belt. Be sure to follow the instructions that came with the child CAUTION: restraint. Secure the child in the child restraint when and as the instructions say. If the airbag readiness light ever comes 1.
Page 66 4. Buckle the belt. Make sure the release button 5. Pull the rest of the shoulder belt all the way is positioned so you would be able to unbuckle out of the retractor to set the lock. the safety belt quickly if you ever had to.
Page 67 7. Push and pull the child restraint in different directions to be sure it is secure. To remove the child restraint, just unbuckle the vehicle’s safety belt and let it go back all the way. The safety belt will move freely again and be ready to work for an adult or larger child passenger.
Page 68: Airbag System
Airbag System If you were using a child restraint in a vehicle equipped with a right front passenger’s airbag, turn If it says AIR BAG on the middle part of the on the right front passenger’s airbag when you steering wheel and AIR BAG on the instrument remove the child restraint from the vehicle unless panel in front of the right front passenger’s the person who will be sitting there is a member...
Page 69 Here are the most important things to know about the airbag system: CAUTION: (Continued) them. Airbags are designed to deploy in CAUTION: moderate to severe frontal and near frontal crashes. They are not designed to You can be severely injured or killed in a inﬂate in rollover, rear crashes, or in many crash if you are not wearing your safety side crashes.
Page 70 If your vehicle has an airbag for the right front passenger, please read this: CAUTION: CAUTION: Airbags inﬂate with great force, faster than the blink of an eye. If you are too close to an inﬂating airbag, as you would Anyone who is up against, or very close be if you were leaning forward, it could to, any airbag when it inﬂates can be...
Page 71: Where Are The Airbags
Where Are the Airbags? There is an airbag readiness light on the instrument panel, which shows the airbag symbol. The system checks the airbag electrical system for malfunctions. The light tells you if there is an electrical problem. See Airbag Readiness Light on page 163 for more information.
Page 72 CAUTION: If something is between an occupant and an airbag, the bag might not inﬂate properly or it might force the object into that person causing severe injury or even death. The path of an inﬂating airbag must be kept clear. Do not put anything between an occupant and an airbag, and do not attach or put anything on the steering wheel hub or on or near any...
Page 73: When Should An Airbag Inﬂate
When Should an Airbag Inﬂate? • If the vehicle hits an object that deforms, the airbags could inﬂate at a different crash Airbags are designed to inﬂate in moderate to speed than if the vehicle hits an object that severe frontal or near-frontal crashes. But they are does not deform.
Page 74: How Does An Airbag Restrain
What Makes an Airbag Inﬂate? What Will You See After an Airbag Inﬂates? In an impact of sufficient severity, the airbag sensing system detects that the vehicle is in a After an airbag inﬂates, it quickly deﬂates, so crash. The sensing system triggers a release of quickly that some people may not even realize the gas from the inﬂator, which inﬂates the airbag.
Page 75 In many crashes severe enough to inﬂate an airbag, windshields are broken by vehicle CAUTION: deformation. Additional windshield breakage may also occur from the right front passenger When an airbag inﬂates, there may be airbag. dust in the air. This dust could cause •...
Page 76: Airbag Off Switch
Airbag Off Switch Infant. An infant (less than 1 year old) must ride in the front seat because: If your vehicle has a right front passenger airbag, it • My vehicle has no rear seat; has a switch on the instrument panel that you can •...
Page 77 Medical Condition. A passenger has a medical condition which, according to his or her physician: • Causes the passenger airbag to pose a special risk for the passenger; and • Makes the potential harm from the passenger airbag in a crash greater than the potential harm from turning off the airbag and allowing the passenger, even if belted, to hit the dashboard or windshield in a crash.
Page 78 The airbag off light will come on to let you know that the right front passenger’s airbag is off. The light will stay on to remind you that the airbag is off. The right front passenger’s airbag will remain off until you turn it back on.
Page 79: Servicing Your Airbag-Equipped Vehicle
Servicing Your Airbag-Equipped CAUTION: Vehicle Airbags affect how your vehicle should be For up to 10 seconds, after the ignition is serviced. There are parts of the airbag system turned off and the battery is disconnected, in several places around your vehicle. You do an airbag can still inﬂate during improper not want the system to inﬂate while someone is service.
Page 80 Adding Equipment to Your Because I have a disability, I have to get my vehicle modiﬁed. How can I ﬁnd out Airbag-Equipped Vehicle whether this will affect my airbag system? Changing or moving any parts of the front Is there anything I might add to the front of seats, safety belts, the airbag sensing and the vehicle that could keep the airbags diagnostic module, steering wheel, the...
Page 81: Restraint System Check
Restraint System Check Also look for any opened or broken airbag covers, and have them repaired or replaced. The airbag system does not need regular maintenance. Checking the Restraint Systems Notice: If you damage the covering for the Now and then, make sure the safety belt reminder driver’s or the right front passenger’s airbag, light and all your belts, buckles, latch plates, the airbag may not work properly.
Page 82: Replacing Restraint System Parts After A Crash
Replacing Restraint System Parts If you have had a crash, do you need new belts? After a Crash After a very minor collision, nothing may be necessary. But if the belts were stretched, as they would be if worn during a more severe crash, then you need new parts.
Page 83: Features And Controls
Section 2 Features and Controls Keys .............. 84 Diesel Engine Exhaust Brake ....109 Remote Keyless Entry (RKE) System ..85 Two-Speed Rear Axle Electric Remote Keyless Entry (RKE) Shift Control ........... 111 System Operation ........86 Air Shift Control (Automatic Transmission) ... 112 Automatic Transmission Operation .....
Page 84: Keys
Keys CAUTION: Leaving children in a vehicle with the ignition key is dangerous for many reasons. They could operate the power windows or other controls or even make the vehicle move. The children or others could be badly injured or even killed. Do not leave the keys in a vehicle with children.
Page 85: Remote Keyless Entry (Rke) System
Remote Keyless Entry (RKE) Your vehicle has one double-sided key System for the ignition and all door locks. If the vehicle has the Remote Keyless Entry (RKE) system, it operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry Canada.
Page 86: System Operation
Remote Keyless Entry (RKE) At times you may notice a decrease in range. This is normal for any RKE system. If the transmitter System Operation does not work or if you have to stand closer to your vehicle for the transmitter to work, try this: If your vehicle has this feature, you can lock and •...
Page 87 Matching Transmitter(s) to Your Battery Replacement Vehicle Under normal use, the battery in your remote keyless entry transmitter should last about Each remote keyless entry transmitter is coded to two years. prevent another transmitter from unlocking your vehicle. If a transmitter is lost or stolen, a You can tell the battery is weak if the transmitter replacement can be purchased through your won’t work at the normal range in any location.
Page 88 Resynchronization Resynchronization may be necessary due to the security method used by this system. The transmitter does not send the same signal twice to the receiver. The receiver will not respond to a signal it has been sent previously. This prevents anyone from recording and playing back the signal from the transmitter.
Page 89: Doors And Locks
Doors and Locks CAUTION: (Continued) Door Locks • Young children who get into unlocked vehicles may be unable to get out. A child can be overcome by extreme CAUTION: heat and can suffer permanent injuries or even death from heat stroke. Always lock your vehicle whenever Unlocked doors can be dangerous.
Page 90: Power Door Locks
Power Door Locks If your vehicle is equipped with keyless entry, you can use your transmitter to lock or unlock your vehicle. See Remote Keyless Entry (RKE) System If your vehicle has Operation on page 86. power door locks, press the bottom of the To lock or unlock your door from the outside, use power door lock switch...
Page 91: Windows
Windows CAUTION: Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather.
Page 92: Power Windows
Power Windows Express-Down The driver’s window has an express-down feature. If your vehicle has power windows, the switches This allows the window to be lowered fully without for all windows are located on the driver’s door. In continuously holding the switch. Press the switch addition, each passenger door has a switch for down fully to initiate the express-down feature.
Page 93: Starting And Operating Your Vehicle
Sun Visors • Avoid making hard stops for the ﬁrst 200 miles (322 km) or so. During this time To block out glare, you can swing down the your new brake linings are not yet broken visors. You can also swing them out to block glare in.
Page 94: Ignition Positions
Ignition Positions B (LOCK): This position locks your ignition, steering wheel and transmission. It is a With your key in the ignition switch, you can turn it theft-deterrent feature. You will only be able to to ﬁve different positions. remove your key when the ignition is turned to LOCK.
Page 95: Engine Starter Over-Crank Protection
Key In the Ignition Starting the Gasoline Engine Never leave your vehicle with the keys inside, as it The 8th digit of your Vehicle Identiﬁcation is an easy target for joy riders or thieves. If you Number (VIN) shows the code letter for your leave the key in the ignition and park your vehicle, engine.
Page 96 Starter Motor Operation 3. If your engine still will not start, or starts but then stops, it could be ﬂooded with too much • The starter motor will disengage if you release gasoline. the key or the engine reaches a predetermined Wait 15 seconds to let the starter motor cool engine speed.
Page 97 Gasoline Engine Warm-Up Stopping the Gasoline Engine When you have started your engine, let it run for Let your engine idle for a few seconds before 20 or 30 seconds to warm up before you put a turning it off after you have ﬁnished driving your load on the engine.
Page 98: Starting The Diesel Engine
Starting the Diesel Engine Manual Transmission Move your shift lever to NEUTRAL and hold the Your vehicle’s diesel engine starts differently than clutch pedal to the ﬂoor while starting the engine. a gasoline engine. Read the following pages to Your vehicle will not start if the clutch pedal is not all learn how to start, restart, warm-up, and stop your the way down —...
Page 99 Cold Weather Starting Notice: Holding your key in START for longer than 15 seconds at a time will cause your ® If your vehicle has the 6.6L DURAMAX Diesel battery to be drained much sooner. And the Engine and the Isuzu 6H Diesel Engine, the excessive heat can damage your starter motor.
Page 100 Cold Weather Starting The following tips will help you get good starting in cold weather. ® (Caterpillar Diesel) • Use the recommended engine oil when the Because the diesel engine uses compression outside temperature drops below freezing. ignition, it is harder to start in cold weather than a ®...
Page 101 Stopping the Diesel Engine Also, remember that an automatic transmission adds heat to the cooling system through the heat 1. Set the parking brake and shift to exchanger in the radiator. Because of this, NEUTRAL (N) or PARK (P). vehicles equipped with automatic transmissions 2.
Page 102: Engine Alarm And Automatic Shutdown
Engine Alarm and Automatic If the light does not come on when the engine is cold, your vehicle needs service. Shutdown If your batteries do not have enough charge to Your check gages warning light will come on if the start your engine, see Battery on page 303.
Page 103 Ambulance, Fire, and Rescue Packages Pull off the road and shut off the engine. Do not start it until the reason for the problem is known, Your check gages warning light will come on if and the problem is ﬁxed. If the engine shuts down the system senses high engine temperature or low when you are still in traffic, you can restart the engine oil pressure.
Page 104: High Idle System
High Idle System • If the vehicle has manual transmission the clutch pedal is not pressed or, if the vehicle High Idle System with Switch has the automatic transmission it is in NEUTRAL (N) or PARK (P). If your vehicle has this The manual high idle feature is activated by feature, the manual high pressing the switch on the instrument panel.
Page 105: Exhaust Restrictor (Engine Warm-Up)
Automatic High Idle System Exhaust Restrictor (Engine Warm-Up) The automatic high idle feature will engage whenever you start your vehicle and the engine is Exhaust Restrictor below the preset operating temperature. This will help decrease engine warm-up time. ® If your vehicle has a Isuzu 6H or Caterpillar ®...
Page 106 For all engines this feature is already turned on. The engine idle speed will return to normal once ® The automatic quick warm-up on the DURAMAX the following conditions are met: engine can be turned off and on by doing the •...
Page 107: Engine Checks Before Operating
Engine Checks Before Operating During this warm-up period, check your warning lights and gages: When you have started your engine, let it run for • If oil pressure does not begin to rise within 20 to 30 seconds before you put a load on the 15 seconds of starting, stop the engine engine.
Page 108: Engine Coolant Heater
• Notice: Do not allow the engine to operate at The charging system light should come on low idle for more than ﬁve minutes. This when the ignition key is turned to RUN or can cause low engine operating temperatures START and should go out when the engine is which can affect engine operation and running above idle.
Page 109: Diesel Engine Exhaust Brake
To Use the Engine Coolant Heater How long should you keep the coolant heater plugged in? The answer depends on the outside 1. Turn off the engine. temperature, the kind of oil you have, and 2. Find the plug-in outlet located under the some other things.
Page 110 ® The exhaust brake If your vehicle has an Allison switch is located in the 1000/2200/2300/2500 series automatic instrument panel transmission and press this button, the switchbank. transmission will downshift to a factory default setting of third gear. To change the default setting, or for more information on factory default settings, contact your dealer for assistance.
Page 111: Two-Speed Rear Axle Electric Shift Control
Two-Speed Rear Axle Electric The two-speed axle control should be in the up position or low range when you park the vehicle. Shift Control You will need to engage the transmission and move the vehicle a little to assure the axle is in the If your vehicle has this feature, you will ﬁnd a label low range.
Page 112: Air Shift Control (Automatic Transmission)
Air Shift Control (Automatic The two-speed axle should be in low range when you park the vehicle. You will need to engage Transmission) the transmission and move the vehicle a little to assure the axle is in range. Then shift into The rear axle shift PARK (P), apply the parking brake, and shut off control switch for an...
Page 113: Automatic Transmission Operation
Automatic Transmission Operation CAUTION: ® We build vehicles with Allison ﬁve and six-speed automatic transmissions. This part of the manual covers the basics of these. With these It can be dangerous to get out of your ® transmissions, you will ﬁnd another Allison vehicle without the parking brake ﬁrmly manual in your vehicle that goes into more detail.
Page 114: Manual Transmission Operation
Overdrive Defeat Manual Transmission Operation If your vehicle has this feature, you can select not Using the Clutch to shift up to ﬁfth gear. This is useful when towing or under a heavy load. When you are starting to move the vehicle, it is important to begin with the engine speed at The overdrive defeat idle.
Page 115 ® ® ® ® Eaton Fuller Five and Six-Speed Eaton Fuller Nine and Ten-Speed Transmissions and TTC Spicer Non-Synchronized Manual Seven-Speed Transmissions Transmissions These transmissions have gears that automatically If your vehicle has one of these transmissions the synchronize when you shift up or down (except engine rpm and road speed must match when FIRST (1) gear on the ﬁve-speed and seven-speed upshifting and downshifting.
Page 116: Power Take-Off (Pto)
Clutch Brake (Vehicles with Power Take-Off (PTO) Non-Synchronized Transmission) If your vehicle is A clutch brake is used to stop transmission input equipped for the shaft rotation so that FIRST (1) or REVERSE (R) addition of a PTO, this gear selection can be initiated when the vehicle is factory installed at a standstill and the engine is idling.
Page 117: Four-Wheel Drive
Four-Wheel Drive Locking Hubs If your vehicle has four-wheel drive, you can send the engine’s driving power to all four wheels for extra traction. To get the most satisfaction out of four-wheel drive, you must be familiar with its operation. Read the part that follows before using four-wheel drive.
Page 118 Recommended Transfer Case Settings If your vehicle has four-wheel drive, the Transfer Case Settings transfer case knob Driving Conditions is located to the right of the steering wheel Normal on the instrument panel. Severe Use this knob to shift Extreme into and out of Vehicle in Tow* four-wheel drive.
Page 119 ® Notice: If your vehicle has an Allison (Four-Wheel Low): This setting sends transmission and you try to put the maximum power to all four wheels. You might transmission in PARK (P) while the transfer choose Four-Wheel Low if you are driving off-road case is in Four-Wheel Low, the transmission in deep sand, deep mud, and climbing or might not go into PARK (P) and could damage...
Page 120 Shifting Into Two-Wheel High Notice: Shifting the transmission into gear before the Four-Wheel Drive Low indicator light Turn the knob to Two-Wheel High. This can be has stopped ﬂashing could damage the done at 3 mph or less, while you are shifting out of transfer case.
Page 121 Shifting Out of Four-Wheel Low Notice: Shifting the transmission into gear before the Four-Wheel High or Two-Wheel High To shift from Four-Wheel Low to Four-Wheel High indicator light has stopped ﬂashing could or Two-Wheel High, your vehicle must be damage the transfer case. To help avoid stopped or moving less than 3 mph (5 km/h) with damaging your vehicle, always wait for the the transmission in NEUTRAL (N) and the...
Page 122 Shifting Into NEUTRAL Shifting Out of NEUTRAL Before shifting the transfer case to NEUTRAL, ﬁrst To shift the transfer case out of NEUTRAL, do the make sure the vehicle is parked so that it will following: not roll. 1. Set the parking brake and apply the regular brake pedal.
Page 123: Parking
Parking a Vehicle With the Two-Speed Excessively shifting the transfer case into or out of the different modes can cause the transfer case Rear Axle to enter the shift protection mode. This protects the 1. With the engine running, shift the two-speed transfer case from possible damage and only rear axle into low.
Page 124: Parking Brake (With Hydraulic Brakes)
Parking Brake (With Hydraulic To set the foot pedal parking brake, hold the regular brake pedal down with your right foot. Push Brakes) down the parking brake pedal with your left foot. If your vehicle has hydraulic brakes, it has either a To set the hand lever parking brake, hold the parking brake foot pedal or hand lever.
Page 125: Parking Brake (With Air Brakes)
Parking Brake (with Air Brakes) Vehicles built for use as tractors or towing vehicles have two air brake controls. They look like this: If your vehicle has air brakes, you will have this parking brake. It is located above the radio in the instrument panel.
Page 126 To charge a trailer’s air brake system do the For driving with a trailer, the yellow and red, if following: equipped, knobs must be pushed in. When you are not pulling a trailer, the red trailer air supply 1. Move your vehicle into the proper position. knob must be pulled out.
Page 127: Parking Brake Burnish Procedure
Parking Brake Burnish Procedure If the air pressure drops below 60 to 70 psi (413 to 482 kPa), the primary brake light and All vehicles which have hydraulic brakes will have warning buzzer will come on. If the air pressure a parking brake.
Page 128: Air Suspension
Air Suspension The switch to deﬂate and inﬂate the air Your vehicle may have the Hendrickson HAS suspension is located in Series single-axle air suspension which is the instrument panel. designed for a single-axle on-highway use. This feature is available in 19,000 lb (8 613.3 kg), 21,000 lb (9 525.4 kg) and 23,000 lb (10 432.6 kg) capacities.
Page 129: Parking Over Things That Burn
Parking Over Things That Burn CAUTION: Things that can burn could touch hot exhaust parts under your vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn.
Page 130: Engine Exhaust
Engine Exhaust CAUTION: (Continued) • CAUTION: Your vehicle was damaged when driving over high points on the road or over road debris. Engine exhaust can kill. It contains the • Repairs were not done correctly. gas carbon monoxide (CO), which you •...
Page 131: Running The Engine While Parked
Running the Engine While Parked CAUTION: It is better not to park with the engine running. But if you ever have to, here are some things to know. It can be dangerous to get out of your vehicle if the automatic transmission shift CAUTION: lever is not fully in PARK (P) with the parking brake ﬁrmly set.
Page 132: Mirrors
Mirrors Outside Power Mirrors If you have outside power mirrors, they can be Manual Rearview Mirror adjusted from the inside of the vehicle. If your vehicle has this feature, pull the tab The control for this under the mirror toward you to reduce glare feature is located on the from headlamps behind you after dark.
Page 133: Outside Convex Mirrors
Outside Convex Mirrors Outside Heated Mirrors If your vehicle has this feature, your outside rearview mirrors can be defrosted. CAUTION: The switch for this feature is located in A convex mirror can make things (like the instrument panel other vehicles) look farther away than they switchbank.
Page 134: Storage Areas
Storage Areas The back of your center bench seat may also fold forward to reveal a console compartment. Your vehicle includes a number of storage The release strap for compartments. the center console is Some vehicles have storage areas in the located between instrument panel.
Page 135: Instrument Panel
Section 3 Instrument Panel Instrument Panel Overview ......138 Climate Controls ......... 155 Hazard Warning Flashers ......140 Climate Control System ......155 Other Warning Devices ......140 Outlet Adjustment ........158 Horn ............140 Rear Heating System ........ 159 Tilt Wheel ..........
Page 136 Section 3 Instrument Panel Engine Coolant Temperature Gage .... 171 Fuel Gage ..........179 Low Coolant Warning Light ....... 171 Water in Fuel Warning Light ...... 180 Wait to Start Indicator ....... 172 Air Filter Restriction Indicator ..... 181 Malfunction Indicator Lamp ......172 Air Pressure Gage ........
Page 137 NOTES...
Page 138: Instrument Panel Overview
Instrument Panel Overview Automatic Transmission Shown...
Page 139 A. Air Outlets. See Outlet Adjustment on H. Turn Signal/Multifunction Lever. See Turn page 158. Signal/Multifunction Lever on page 141. B. Instrument Panel Cluster. See Instrument I. Hazard Warning Flashers Button. See Hazard Panel Cluster on page 160. Warning Flashers on page 140. C.
Page 140: Hazard Warning Flashers
Hazard Warning Flashers Other Warning Devices The hazard warning ﬂashers warn others. They If you carry reﬂective triangles, you can set them up also let police know you have a problem. Your front at the side of the road about 300 feet (100 m) and rear turn signal lamps will ﬂash on and off.
Page 141: Turn Signal/Multifunction Lever
Turn Signal/Multifunction Lever The lever that allows you to tilt the steering wheel is located on the left side of the steering column. The lever located on the left side of the steering column includes the following: • Turn and Lane-Change Signals. See Turn and Lane-Change Signals on page 142.
Page 142: Turn And Lane-Change Signals
Turn and Lane-Change Signals As you signal a turn or a lane change, if the arrows don’t ﬂash but just stay on, check the turn The turn signal has two upward (for right) and signal ﬂasher and circuit breaker. See Fuses two downward (for left) positions.
Page 143: Windshield Wipers
Windshield Wipers For steady wiping at low speed, turn the band toward you to the ﬁrst solid band below the delay settings. You control the windshield wipers by For high-speed wiping, turn the band farther, to turning the band with the the last solid band below the delay settings.
Page 144: Windshield Washer
Windshield Washer Cruise Control (Washer Fluid): There is a paddle marked If your vehicle has this with the windshield washer symbol at the top of the feature, it is located multifunction lever. To spray washer ﬂuid on the at the end of the windshield, press the paddle.
Page 145 Setting Cruise Control With cruise control, you can maintain a speed of about 25 mph (40 km/h) or more without keeping your foot on the accelerator. Cruise control does not work at speeds below about CAUTION: 25 mph (40 km/h). If you have an automatic transmission and you If you leave your cruise control on when apply your brakes, the cruise control will shut off.
Page 146 Resuming a Set Speed Increasing Speed While Using Cruise Control Suppose you set your cruise control at a desired speed and then you apply the brake. This, of There are two ways to go to a higher speed: course, shuts off the cruise control. But you don’t •...
Page 147 Reducing Speed While Using Using Cruise Control on Hills Cruise Control How well your cruise control will work on hills depends upon your speed, load and the steepness Press in the button at the end of the lever until you of the hills.
Page 148: Exterior Lamps
Ending Cruise Control Exterior Lamps There are four different ways to turn off the cruise control: • Step lightly on the brake pedal (manual and automatic transmissions). • Press the clutch pedal to the ﬂoor (manual transmissions). • Move the cruise switch to off, or •...
Page 149: Headlamps On Reminder
Headlamps on Reminder The exterior lamp control has three positions: OFF: Turning the control to this position turns If you have this system, a tone will sound when off all lamps except the Daytime Running your headlamps and/or parking lamps are Lamps (DRL).
Page 150: Marker Lamps
Marker Lamps When the DRL are on, only your headlamps will be on. The taillamps, sidemarker and other lamps If your vehicle has this feature, you can manually won’t be on. Your instrument panel won’t be lit blink the marker and clearance lamps. up either.
Page 151: Instrument Panel Brightness
Instrument Panel Brightness This feature controls the brightness of the instrument panel lights. The thumbwheel for this feature is located to the right of the exterior lamp control. Turn the thumbwheel up to brighten the lights. When the thumbwheel is moved to the ﬁrst position, the radio display and transmission selection display will go to full intensity.
Page 152: Entry Lighting
Entry Lighting Instrument Panel Switchbank The delayed illumination feature will allow you to enter or exit your vehicle with the lights on for about 20 seconds, after the door is closed or the ignition is cycled. Reading Lamps If your vehicle has reading lamps, press the button next to the lamp to turn the lamp on or off.
Page 153 This switchbank is located in the center of the (Rear Air Suspension Dump Control instrument panel. Switch): Air Suspension on page 128. (Marker Lamp Defeat Switch): See Marker (Rear Axle Shift Control Switch): See Air Shift Lamps on page 150. Control (Automatic Transmission) on page 112.
Page 154: Accessory Power Outlet(S)
Accessory Power Outlet(s) Notice: Adding any electrical equipment to your vehicle may damage it or keep other With accessory power outlets, you can plug in components from working as they should. auxiliary electrical equipment such as a cellular The repairs would not be covered by your telephone or CB radio.
Page 155: Climate Controls
Ashtray(s) and Cigarette Lighter Climate Controls Your vehicle may have an ashtray and a cigarette Climate Control System lighter located in the center ﬂoor console. To open the removable ashtray, ﬂip open the top. With these systems, you can control the heating, Notice: If you put papers, pins, or other cooling and ventilation for your vehicle.
Page 156 To change the current mode, select one of the Temperature Knob: Turn the middle knob located following: clockwise or counterclockwise to increase or decrease the temperature inside of your vehicle. (Off): This setting turns the system off. Turn the knob toward the red area for warmer air. Turn the knob toward the blue area for cooler air.
Page 157 Turn the mode knob on the right of the climate (Air Conditioning): This setting is used for control panel to select the defog or defrost mode. normal cooling on hot days. It cools outside air and directs it through the instrument panel vents. (Defog): With this setting, the outside air comes out of both the ﬂoor and defroster outlets.
Page 158: Outlet Adjustment
Rear Window Defogger Outlet Adjustment The rear window defogger uses a warming grid to Your vehicle has air outlets on the instrument remove fog or frost from the rear window. panel that allow you to adjust the direction and amount of airﬂow inside the vehicle. Be sure to clear as much snow from the rear window as possible.
Page 159: Warning Lights, Gages, And Indicators
Rear Heating System Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or If you have a crew cab replacement. Paying attention to your warning and your vehicle has a lights and gages could also save you or others rear heater, the from injury.
Page 160: Instrument Panel Cluster
Instrument Panel Cluster Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, about how much fuel is left and many other things you will need to drive safely and economically.
Page 161: Speedometer And Odometer
Speedometer and Odometer Tachometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). Your odometer shows how far your vehicle has been driven, in either miles (used in the United States) or kilometers (used in Canada). Trip Odometer The trip odometer can tell you how far your ®...
Page 162: Safety Belt Reminder Light
Engine Road Speed Governor Safety Belt Reminder Light This system controls maximum vehicle speed When the key is turned to RUN or START, a light automatically and reduces engine power will come on for several seconds to remind until vehicle speed gets down to maximum people to fasten their safety belts.
Page 163: Airbag Readiness Light
Airbag Readiness Light The airbag readiness light should ﬂash for a few seconds when you turn the ignition key to RUN or If your vehicle has airbags, there is an airbag START. If the light doesn’t come on then, have readiness light on the instrument panel, which it ﬁxed so it will be ready to warn you if there is shows the airbag symbol.
Page 164: Airbag Off Light
Airbag Off Light CAUTION: If your vehicle is equipped with an airbag off switch, when you turn the right front passenger’s airbag off, this light will come on and stay on If the right front passenger’s airbag is to remind you that the airbag has been turned off. turned off for a person who is not in a risk This light will go off when you turn the airbag group identiﬁed by the national...
Page 165: Charging System Light
Charging System Light CAUTION: The charging system light may be located in If the airbag readiness light ever comes the instrument panel on when you have turned off the airbag, it cluster, or with the means that something may be wrong with auxiliary warning lights the airbag system.
Page 166: Voltmeter Gage
Voltmeter Gage Readings in the low warning zone may occur when a large number of electrical accessories are operating in the vehicle and the engine is left at When your engine is an idle for an extended period. This condition running, the voltmeter is normal since the charging system may not be gage shows the...
Page 167: Service Transmission Warning Light
Service Transmission Warning Light Notice: If you continue driving your vehicle after the transmission warning light comes on, ® If your vehicle has an Allison automatic you could damage the transmission. While transmission, certain transmission malfunctions this light is on, the transmission cannot will turn this light on.
Page 168: Brake System Warning Light
Brake System Warning Light Parking Brake Warning Light Your vehicle has a brake warning light. When the Your vehicle has either hydraulic or air brakes. ignition is on, this light will come on when you Each system has different warning lights. set your parking brake.
Page 169 Air Brake System Warning Light CAUTION: Vehicles with air brake systems have a brake system warning light on the instrument panel. If the air brake system warning light comes on and the warning tone sounds, the vehicle can stop suddenly and without further warning.
Page 170: Anti-Lock Brake System Warning Light
Anti-Lock Brake System Trailer Anti-Lock Brake System Warning Light Warning Light This light will come on This light is located brieﬂy when you start above the climate your engine, then it will controls in the center of turn off. This is normal. the instrument panel.
Page 171: Engine Coolant Temperature Gage
Engine Coolant Temperature Gage Low Coolant Warning Light You have a low coolant warning light. If this light comes on, your system is low on coolant and the engine may overheat. The warning light should come on brieﬂy, as a check, when you turn on the ignition.
Page 172: Wait To Start Indicator
Wait to Start Indicator Malfunction Indicator Lamp Service Engine Soon Light ® If your vehicle has the DURAMAX 6.6L diesel engine, it will have glow plugs and an air If this light comes on or intake heater. If your vehicle has the Isuzu 6H ﬂashes while you are diesel engine, it will have glow plugs and an inlet driving, two things...
Page 173: Oil Pressure Gage
Oil Pressure Gage A reading in the low pressure zone may be caused by a dangerously low oil level or other problem. ® If you have a Caterpillar diesel engine, also see ® your Caterpillar Operation & Maintenance Manual. CAUTION: Do not keep driving if the oil pressure is low.
Page 174: Low Oil Level Light
Low Oil Level Light If this light comes on and stays on, it means your engine is low on oil. You need to check the oil level right away. See Engine Oil Your vehicle may have ® (Caterpillar Diesel Engine) on page 264 or a low oil level light.
Page 175: Engine Overspeed Warning Light
Engine Shutdown Warning Light For additional information on when to change ® engine oil for gasoline engines or DURAMAX ® diesel engines, see Engine Oil (Caterpillar Diesel If your vehicle has the Engine) on page 264 or Engine Oil (Gasoline engine shutdown ®...
Page 176: Transmission Temperature Gage
Transmission Temperature Gage Exhaust Brake Indicator Light If you have an If your vehicle is automatic transmission equipped with an and this gage, it is exhaust brake, you will located above the have this light, located switchbank in the above the climate center of the controls in the center of instrument panel.
Page 177: Differential Lock Indicator Light
Differential Lock Indicator Light Reduced Engine Power Light If your vehicle has this If the check engine and feature, this light is reduced engine power located in the center of lights are on, the the instrument panel. electronic throttle control The light is on when the may be disabled, and a rear differential lock...
Page 178: Highbeam On Light
Highbeam On Light Low Washer Fluid Warning Light This light comes on This light is located when the high-beam above the climate headlamps are in use. controls in the center of the instrument panel. See Headlamp High/Low-Beam Changer on This light will come on when your vehicle is low on page 142.
Page 179: Check Gages Warning Light
Check Gages Warning Light Fuel Gage This light will come on Your fuel gage is as you’re starting the located on the right side engine, just as a check. of your instrument panel cluster. If this light comes on and stays on while you are driving.
Page 180: Water In Fuel Warning Light
Water in Fuel Warning Light Here are four concerns of some operators. None of these shows a problem with your fuel gage: • This light is located The gage moves a little when you turn a above the climate corner or speed up. controls in the center of •...
Page 181: Air Filter Restriction Indicator
Air Filter Restriction Indicator Air Pressure Gage If your vehicle has air If your vehicle has this brakes, the air pressure feature, the gage is gage is located above located above the the switchbank in switchbank in the center the center of the of the instrument instrument panel.
Page 182: Audio System(S)
Hourmeter Gage Driving without distraction is a necessity for a safer driving experience. See Defensive Driving on To access the engine hourmeter gage, press the page 202. By taking a few moments to read this trip odometer button three times. manual and get familiar with your vehicle’s audio system, you can use it with less effort, as The instrument panel cluster displays the...
Page 183: Setting The Time
Keeping your mind on the drive is important for Notice: The chime signals related to safety safe driving. For more information, see Defensive belts, parking brake, and other functions Driving on page 202. of your vehicle operate through the radio/entertainment system. If that equipment Here are some ways in which you can help avoid is replaced or additional equipment is added distraction while driving.
Page 184: Playing The Radio
AM-FM Radio Finding a Station AM FM: Press this button to switch between FM1, FM2, or AM. The selection displays. TUNE: Turn this knob to select radio stations. SEEK : Press the right or the left arrow to go to the next or to the previous station and stay there. To scan stations, press and hold either SEEK arrow for two seconds until a beep sounds.
Page 185 Setting Preset Stations To adjust both tone controls and both speaker controls to the middle position, ﬁrst exit out of audio Up to 18 stations (six FM1, six FM2, and six AM) mode by pressing another button, causing the radio can be programmed on the six numbered to perform that function or wait ﬁve seconds for the pushbuttons, by performing the following steps:...
Page 186: Radio With Cassette
Radio with Cassette To adjust both tone controls and both speaker controls to the middle position, ﬁrst exit out of audio mode by pressing another button, causing the radio to perform that function or wait ﬁve seconds for the display to return to time of day. Then press and hold AUDIO for more than two seconds until a beep sounds.
Page 187: Finding A Station
Finding a Station Setting Preset Stations Up to 18 stations (six FM1, six FM2, and six AM) AM FM: Press this button to switch between FM1, can be programmed on the six numbered FM2, and AM. The display shows the selection. pushbuttons, by performing the following steps: TUNE: Turn this knob to select radio stations.
Page 188 Setting the Tone (Bass/Treble) Adjusting the Speakers (Balance/Fade) AUDIO: To adjust the balance between the AUDIO: To adjust bass and treble, press and right and the left speakers, press and release release AUDIO until BAS (bass) or TRE (treble) AUDIO until BAL (balance) appears on the display. appears on the display.
Page 189 Radio Messages If the ignition and the radio are off, press the eject button or the RCL knob to insert and to begin CAL (Calibration): The audio system has been play of a tape. If the ignition is on and the radio is calibrated for your vehicle from the factory.
Page 190 1 PREV (Previous): The tape must have at least 3 REV (Reverse): Press this pushbutton to three seconds of silence between each selection quickly reverse the tape. FR appears on the for previous to work. Press this pushbutton to display. The radio plays while the tape reverses. go to the previous selection on the tape if Press it again to return to playing speed.
Page 191 Cassette Tape Messages SEEK : The tape must have at least three seconds of silence between each selection ERR (Error): If the player detects a tight or for seek to work. The left arrow is the same as the broken tape, this message appears on the display PREV pushbutton and the right arrow is the same and the player ejects the tape.
Page 192: Radio With Cd
CD Adapter Kits Radio with CD It is possible to use a portable CD player adapter kit with the cassette tape player after deactivating the tight/loose tape sensor feature on the tape player. To deactivate this feature, use the following steps: 1.
Page 193 Finding a Station Setting Preset Stations Up to 18 stations (six FM1, six FM2, and six AM), AM FM: Press this button to switch between FM1, can be programmed on the six numbered FM2, and AM. The display shows the selection. pushbuttons, by performing the following steps: TUNE: Turn this knob to select radio stations.
Page 194 To adjust bass or treble to the middle position, To adjust the fade between the front and the rear select BAS or TRE. Then press and hold the speakers, press and release the AUDIO button AUDIO button for more than two seconds until you until FAD (fade) appears on the display.
Page 195: Radio Messages
Radio Messages If the ignition or radio is turned off, with a CD in the player, it stays in the player. When the ignition or CAL (Calibration): The audio system has been radio is turned on, the CD starts playing where it calibrated for your vehicle from the factory.
Page 196 Do not add any label to a CD, it could get caught 2 NEXT: Press this pushbutton to go to the next in the CD player. If a CD is recorded on a track. The track number appears on the display. personal computer and a description label is If this pushbutton is held or pressed more needed, try labeling the top of the recorded CD...
Page 197 CD Messages SEEK : Press the right or the left arrow to go to the next or to the previous track. The If the CD comes out, it could be for one of the track number appears on the display. If either following reasons: arrow is held or pressed more than once, •...
Page 198: Theft-Deterrent Feature (Non-Rds Radios)
Theft-Deterrent Feature (Non-RDS Radios) The range for most AM stations is greater than for FM, especially at night. The longer range can cause ® THEFTLOCK is designed to discourage theft of station frequencies to interfere with each other. For your vehicle’s radio. The feature works better radio reception, most AM radio stations will automatically by learning a portion of the Vehicle boost the power levels during the day, and then...
Page 199 The tape player should be cleaned regularly after 3. Press and hold the TAPE button for every 50 hours of use. The radio may display CLN two seconds until the radio produces one beep. to indicate that the tape player has been used for CAS will ﬂash on the display for ﬁve seconds.
Page 200: Care Of Your Cds
Care of Your CDs Fixed Mast Antenna The ﬁxed mast antenna can withstand most Handle CDs carefully. Store them in their original vehicle washes without being damaged. If the mast cases or other protective cases and away from should ever become slightly bent, straighten it direct sunlight and dust.
Page 201: Driving Your Vehicle
Section 4 Driving Your Vehicle Your Driving, the Road, and Driving at Night ......... 219 Driving in Rain and on Wet Roads .... 220 Your Vehicle ..........202 City Driving ..........223 Defensive Driving ........202 Freeway Driving ........224 Drunken Driving ........
Page 202: Your Driving, The Road, And Your Vehicle
Your Driving, the Road, and CAUTION: Your Vehicle Defensive driving really means “Be ready Defensive Driving for anything.” On city streets, rural roads, The best advice anyone can give about driving is: or expressways, it means “Always expect Drive defensively. the unexpected.”...
Page 203: Drunken Driving
Drunken Driving Many adults — by some estimates, nearly half the adult population — choose never to drink Death and injury associated with drinking and alcohol, so they never drive after drinking. driving is a national tragedy. It is the number For persons under 21, it is against the law in one contributor to the highway death toll, every U.S.
Page 204 According to the American Medical Association, a It is the amount of alcohol that counts. For example, 180 lb (82 kg) person who drinks three 12 ounce if the same person drank three double martinis (355 ml) bottles of beer in an hour will end up with (3 ounces or 90 ml of liquor each) within an hour, a BAC of about 0.06 percent.
Page 205 But the ability to drive is affected well below a BAC There is something else about drinking and driving of 0.10 percent. Research shows that the driving that many people do not know. Medical research skills of many people are impaired at a BAC shows that alcohol in a person’s system can make approaching 0.05 percent, and that the effects are crash injuries worse, especially injuries to the...
Page 206: Control Of A Vehicle
Control of a Vehicle Average reaction time is about three-fourths of a second. But that is only an average. It might You have three systems that make your vehicle go be less with one driver and as long as two or where you want it to go.
Page 207: Hydraulic Brake Systems
Hydraulic Brake Systems Avoid needless heavy braking. Some people drive in spurts — heavy acceleration followed by heavy If your engine stops running, or if your primary braking — rather than keeping pace with traffic. brake system stops working, your vehicle This is a mistake.
Page 208: Anti-Lock Brake System (Abs)
Anti-Lock Brake System (ABS) Your vehicle has the Anti-Lock Brake System (ABS), an advanced electronic braking system that will help prevent a braking skid. When you start your engine and begin to drive away, ABS will check itself. You may hear a momentary motor or clicking noise while this test is going on.
Page 209: Braking In Emergencies
ABS can change the brake pressure faster than Remember: ABS does not change the time you any driver could. The computer is programmed need to get your foot up to the brake pedal to make the most of available tire and road or always decrease stopping distance.
Page 210: Trailer Brake Hand Control Valve
Trailer Brake Hand Control Valve CAUTION: If your vehicle has this feature, the control is mounted on the ﬂoor console. Using the trailer brake hand control for This feature lets you parking or for holding the vehicle on a hill apply the trailer brakes may not keep the vehicle from rolling.
Page 211: Rear Axle Differential Lock Control
Rear Axle Differential Lock Control Notice: Turning on the inter-axle differential lock while the rear wheels are spinning freely, as they might on snow or ice, can If your vehicle has a damage the axle(s). Turn on this control only controlled traction or while the wheels are not spinning freely.
Page 212: Traction Control System (Tcs)
Traction Control System (TCS) When the light in the top of the TCS button is on, the TCS is off and will not limit wheel spin. Your vehicle may have a traction control system Adjust your driving accordingly. that limits wheel spin. This is especially useful The light in the top of the TCS button will come on in slippery road conditions.
Page 213: Steering
Steering To turn the system on or off, press the traction Power Steering control button located on the instrument panel. If you lose power steering assist because the engine stops or the system is not functioning, you can steer but it will take much more effort. On vehicles with hydraulic brakes, the power steering and main hydraulic brake system both use the power steering pump.
Page 214 The traction you can get in a curve depends on the Try to adjust your speed so you can “drive” condition of your tires and the road surface, the through the curve. Maintain a reasonable, steady angle at which the curve is banked, and your speed.
Page 215: Off-Road Recovery
Off-Road Recovery You may ﬁnd that your right wheels have dropped off the edge of a road onto the shoulder while you are driving. An emergency like this requires close attention and a quick decision. If you are holding the steering wheel at the recommended 9 and 3 o’clock positions, you can turn it a full 180 degrees very quickly without removing either...
Page 216: Passing
Passing • Watch for traffic signs, pavement markings, and lines. If you can see a sign up ahead The driver of a vehicle about to pass another on a that might indicate a turn or an intersection, two-lane highway waits for just the right moment, delay your pass.
Page 217: Loss Of Control
• And if something happens to cause you to Do not overtake a slowly moving vehicle too cancel your pass, you need only slow down and rapidly. Even though the brake lamps are not drop back again and wait for another ﬂashing, it may be slowing down or starting opportunity.
Page 218 Skidding Of course, traction is reduced when water, snow, ice, gravel, or other material is on the road. In a skid, a driver can lose control of the vehicle. For safety, you will want to slow down and adjust Defensive drivers avoid most skids by taking your driving to these conditions.
Page 219: Driving At Night
Driving at Night No one can see as well at night as in the daytime. But as we get older these differences increase. Night driving is more dangerous than day driving. A 50-year-old driver may require at least twice as One reason is that some drivers are likely to much light to see the same thing at night as a be impaired —...
Page 220: Driving In Rain And On Wet Roads
Driving in Rain and on Wet Roads Keep the windshield and all the glass on your vehicle clean — inside and out. Glare at night is made much worse by dirt on the glass. Even the inside of the glass can build up a ﬁlm caused by dust.
Page 221 The heavier the rain, the harder it is to see. Driving too fast through large water puddles or Even if your windshield wiper blades are in good even going through some vehicle washes shape, a heavy rain can make it harder to see can cause problems, too.
Page 222 Driving Through Deep Standing Water Some Other Rainy Weather Tips Notice: If you drive too quickly through • Turn on your low-beam headlamps and your deep puddles or standing water, water can marker and clearance lamps, if your vehicle come in through your engine’s air intake and has them —...
Page 223: City Driving
City Driving Here are ways to increase your safety in city driving: • Know the best way to get to where you are going. Get a city map and plan your trip into an unknown part of the city just as you would for a cross-country trip.
Page 224: Freeway Driving
Freeway Driving The most important advice on freeway driving is: Keep up with traffic and keep to the right. Drive at the same speed most of the other drivers are driving. Too-fast or too-slow driving breaks a smooth traffic ﬂow. Treat the left lane on a freeway as a passing lane.
Page 225: Highway Hypnosis
Highway Hypnosis Before changing lanes, check your mirrors. Then use your turn signal. Is there actually such a condition as highway Once you are moving on the freeway, make hypnosis? Or is it just plain falling asleep at the certain you allow a reasonable following distance. wheel? Call it highway hypnosis, lack of Expect to move slightly slower at night.
Page 226: Hill And Mountain Roads
Hill and Mountain Roads CAUTION: If you do not shift down, your brakes could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Shift down to let your engine assist your brakes on a steep downhill slope.
Page 227: Winter Driving
• Winter Driving Know how to go down hills. The most important thing to know is this: let your engine do some of the slowing down. Shift to a lower gear when you go down a steep or long hill. •...
Page 228 Include an ice scraper, a small brush or broom, a supply of windshield washer ﬂuid, a rag, some winter outer clothing, a small shovel, a ﬂashlight, a red cloth, and reﬂective warning triangles. And, if you will be driving under severe conditions, include a small bag of sand, a piece of old carpet, or a couple of burlap bags to help provide traction.
Page 229 If you have a four-wheel-drive vehicle, shift into you will want to begin stopping sooner than you 4HI. See Four-Wheel Drive on page 117. would on dry pavement. Without ABS, if you feel your vehicle begin to slide, let up on If you have the Traction Control System (TCS), the brakes a little.
Page 230 If You Are Caught in a Blizzard If you are stopped by heavy snow, you could be in a serious situation. You should probably stay with your vehicle unless you know for sure that you are near help and you can hike through the snow.
Page 231 Run your engine only as long as you must. This saves fuel. When you run the engine, CAUTION: make it go a little faster than just idle. That is, push the accelerator slightly. This uses less fuel Snow can trap exhaust gases under for the heat that you get and it keeps the your vehicle.
Page 232: If Your Vehicle Is Stuck In Sand, Mud, Ice, Or Snow
If Your Vehicle is Stuck in Sand, Notice: Spinning the wheels can destroy parts of your vehicle as well as the tires. If you Mud, Ice, or Snow spin the wheels too fast while shifting the transmission back and forth, you can In order to free your vehicle when it is stuck, you destroy the transmission.
Page 233: Tow Hooks
Tow Hooks If your vehicle has tow hooks, the hooks are at the front and, on some models, the rear of the vehicle. You may need to use them if you are stuck off-road and need to be pulled to some place CAUTION: where you can continue driving.
Page 234: Loading Your Vehicle
Loading Your Vehicle Never exceed the GVWR for your vehicle, or the GAWR for either the front or rear axle. It is the responsibility of the Final Stage And, if you do have a heavy load, spread it out. manufacturer to install a Certiﬁcation label on your vehicle.
Page 235 Using heavier suspension components to get added durability might not change the weight CAUTION: ratings. Ask your dealer to help you load your vehicle the right way. Things you put inside your vehicle can Notice: Overloading your vehicle may cause strike and injure people in a sudden stop damage.
Page 236: Adding A Snow Plow Or Similar Equipment
Adding a Snow Plow or Similar CAUTION: Equipment If you will be installing a snow plow on your On some vehicles that have certain front vehicle, we recommend that the vehicle have the mounted equipment, such as a snow snow plow prep package (RPO ANQ). Before plow, it may be possible to load the front installing a snow plow, see your dealer for axle to the front gross axle weight rating...
Page 237: Towing
Towing Towing Your Vehicle Consult your dealer or a professional towing service if you need to have your disabled vehicle towed. See Roadside Assistance Program on page 408. Releasing Air-Operated Parking Brakes If your vehicle has air brakes, you could have a special towing problem.
Page 238 3. Remove the rubber 6. Turn the stud nut cap from the rear of clockwise several the chamber. turns to release the brakes. Follow the same procedure to release the other brake or brakes. 4. Put the release stud, nut and ﬂat washer into 7.
Page 239: Trailer Connections
Trailer Connections Trailer Connections (C7/C8 Models Only) Heavy-Duty Trailer Wiring Package If your vehicle has these trailer connections, they Your vehicle may be equipped with an eight-wire are located at the rear of the cab for a tractor trailer towing harness. This harness, with a and at the rear of the chassis when towing seven-pin universal heavy-duty trailer connector, a trailer.
Page 240 NOTES...
Page 241: Service And Appearance Care
Section 5 Service and Appearance Care Service ............244 Engine Oil Life System ® California Proposition 65 Warning ....244 (DURAMAX Diesel) ....... 274 Doing Your Own Service Work ....245 Engine Oil Life System ® Engine Fan Breakage ........ 246 (Caterpillar Diesel Engine) ....
Page 242 Section 5 Service and Appearance Care Front Axle ........... 312 Tightening the Wheel Nuts ......324 Wheel Replacement ........328 Noise Control System ......... 313 If a Tire Goes Flat ........330 Tampering with Noise Control System Prohibited ..........313 Appearance Care ........
Page 243 Section 5 Service and Appearance Care Electrical System ........341 Fuses and Circuit Breakers ....... 342 Add-On Electrical Equipment ..... 341 Instrument Panel Fuse Block ..... 342 Headlamp Wiring ........341 Underhood Fuse Block ......345 Windshield Wiper Fuses ......342 Capacities and Speciﬁcations ....
Page 244: Service
Service California Proposition 65 Warning Most motor vehicles, including this one, contain Your dealer knows your vehicle best and wants and/or emit chemicals known to the State of you to be happy with it. We hope you will go California to cause cancer and birth defects or other to your dealer for all your service needs.
Page 245: Doing Your Own Service Work
Doing Your Own Service Work If you want to do some of your own service work, you will want to use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the CAUTION: proper service manual, see Service Publications Ordering Information on page 415.
Page 246: Engine Fan Breakage
Engine Fan Breakage CAUTION: (Continued) CAUTION: Winter Fronts, Grille Covers or Obstructions: Changing the Fan Drive Ratio or Engine Winter Fronts, grille covers or other Governed Speed: add-on equipment causing obstructions in front or behind the fan should not be used If you change the fan drive ratio or on this vehicle.
Page 247: Fuel
Fuel Gasoline Speciﬁcations At a minimum, gasoline should meet ASTM If your vehicle has a diesel engine, see Diesel speciﬁcation D 4814 in the United States or Engine Fuel on page 248. CAN/CGSB-3.5 in Canada. Some gasolines may For vehicles with gasoline engines, please contain an octane-enhancing additive called read this.
Page 248: Diesel Engine Fuel
Diesel Engine Fuel Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines may ® ® For the Caterpillar diesel, see the Caterpillar be available in your area. General Motors Operation & Maintenance Manual for information recommends that you use these gasolines if they concerning fuel usage.
Page 249: What Fuel To Use
What Fuel to Use At a minimum, the diesel fuel you use should meet the latest version of ASTM speciﬁcation D 975 In the United States, for best results use No. 2-D (Grades No. 2-D or No. 1-D S15 commonly known diesel fuel year-round (above and below freezing as Ultra Low Sulfur diesel) in the United States.
Page 250 What Fuel to Use in Canada Higher concentration (i.e., greater than B5) biodiesel-containing fuels or the use of unmodiﬁed Canadian fuels are blended for seasonal changes. bio-oils blended into diesel fuel at any concentration Diesel Type “A” fuel is blended for better cold is not recommended and could damage your fuel weather starting (below 0°F or −18°C);...
Page 251: Very Cold Weather Operation
At a minimum, the diesel fuel you use should meet Higher concentration (i.e., greater than B5) the latest version of speciﬁcation CAN/CGSB-3.517 biodiesel-containing fuels or the use of unmodiﬁed (Low Sulfur Diesel) in Canada. In addition, the bio-oils blended into diesel fuel at any Engine Manufacturers Association (EMA) has concentration is not recommended and could identiﬁed properties of an improved diesel fuel for...
Page 252: Water In Fuel
Water in Fuel Sometimes, water can be pumped into your fuel tank along with your diesel fuel. This can happen if a service station does not regularly inspect and clean its fuel tanks, or if it gets contaminated fuel CAUTION: from its suppliers.
Page 253 If the light comes on, use this chart to determine Notice: If you drive when this warning what action to take. indicator is on, you can damage your fuel injection system and your engine. If the Water In Fuel Light indicator comes on right after you refuel, it Problem Recommended Action...
Page 254 4. Open the drain 6. Install the fuel cap. valve by turning 7. Start the engine and let it run for a few minutes. two to three turns. If the engine stalls, the fuel system may need When fuel empties to be primed.
Page 255 Fuel Priming If one or more of the above occurred, it is very likely that air has entered your fuel system and that ® If your vehicle has a Caterpillar diesel engine, you will need to prime the fuel system before ®...
Page 256 ® To prime the 6.6L DURAMAX diesel engine, do 6. Repeatedly push the following: down on the fuel ﬁlter primer 1. Make sure there is fuel in the tank. pump with the palm 2. Make sure the fuel ﬁlter had been installed of your hand.
Page 257 Priming the 7.8L Isuzu 6H Diesel Engine 4. Make sure the fuel ﬁlter is cool to the touch. 5. Use a clean cloth to remove dirt and oil If your vehicle is equipped with the from the fuel ﬁlter head and breather valve. 7.8L Isuzu 6H diesel engine, use the following procedure to prime the engine: 6.
Page 258: Running Out Of Fuel
12. Start the engine and allow it to idle for a 2. Follow the fuel priming procedure earlier in few minutes. this section to prime the fuel ﬁlter. 13. Check the fuel ﬁlter for leakage. 3. Close the air bleed valve. 4.
Page 259: Fuel Filter Replacement
Fuel Filter Replacement If your vehicle has the 6.6L engine, the fuel ﬁlter is located in the engine compartment on the driver’s If you want to change the diesel engine fuel ﬁlter side of the vehicle. If your vehicle has either the yourself, here is how to do it: 7.2L or 7.8L engine, the fuel ﬁlters are located in the engine compartment on the driver’s side of the...
Page 260: Fuels In Foreign Countries
Filling the Tank 4. Install the new ﬁlter element. 5. Reinstall and tighten the ﬁlter container and reconnect the water sensor wire to the ﬁlter. 6. Use the fuel ﬁlter priming procedure earlier in this section to prime the fuel ﬁlter. 7.
Page 261 CAUTION: (Continued) CAUTION: can happen if your tank is nearly full, and Fuel vapor is highly ﬂammable. It burns is more likely in hot weather. Open the violently, and that can cause very bad fuel cap slowly and wait for any “hiss” injuries.
Page 262: Filling A Portable Fuel Container
Filling a Portable Fuel Container If your vehicle is a C4/C5 model and you have dual tanks, the engine must be off when refueling or the fuel transfer system may become inoperable. CAUTION: If you have a single tank with dual ﬁllers, where there is a ﬁller on each side of the vehicle, do not Never ﬁll a portable fuel container while it attempt to ﬁll the tank through both ﬁllers at the...
Page 263: Checking Things Under The Hood
Checking Things Under Hood Latches the Hood CAUTION: Things that burn can get on hot engine parts and start a ﬁre. These include liquids like fuel, oil, coolant, brake ﬂuid, windshield washer and other ﬂuids, and plastic or rubber. You or others could be burned.
Page 264: Engine Oil (Caterpillar Diesel Engine)
Then take the hand hold and pull the hood When you tilt the hood far enough, the cables will forward. support it. When you close the hood, make sure both latches are secured. Engine Oil ® (Caterpillar Diesel Engine) ® See your Caterpillar Operation &...
Page 265: Engine Oil (Gasoline Engine)
Engine Oil (Gasoline Engine) Checking Engine Oil It is a good idea to check the engine oil every time If the low oil light you get fuel. In order to get an accurate reading, appears on the the oil must be warm and the vehicle must be instrument cluster, it on level ground.
Page 266 When to Add Engine Oil The engine oil ﬁll cap is located near the engine oil dipstick in the engine compartment, on the driver’s side of the vehicle. Be sure to add enough oil to put the level somewhere in the proper operating range in the If the oil is below the cross-hatched area at the tip cross-hatched area.
Page 267 What Kind of Engine Oil to Use These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50. Oils meeting these requirements should also have the starburst symbol on the container.
Page 268: Engine Oil (Duramax /Isuzu Diesel Engine)
If you are in an area of extreme cold, where the The engine oil dipstick temperature falls below −20°F (−29°C), it is is located in the engine recommended that you use either an SAE 5W-30 compartment on the synthetic oil or an SAE 0W-30 oil. Both will driver’s side of the provide easier cold starting and better protection vehicle.
Page 269: When To Add Engine Oil
When to Add Engine Oil 2. Pull out the dipstick and clean it with a paper towel or a cloth, then push it back in If the oil is below the cross-hatched area at the tip all the way. ® of the dipstick for the 6.6L V8 DURAMAX engine, 3.
Page 270 What Kind of Engine Oil to Use Add oil at the engine oil ﬁll cap in the engine Look for these two things: compartment. Install and • fully tighten the ﬁll cap CJ-4 or CI-4 when you are through. Oils designated as API CJ-4 or CI-4 are recommended for your vehicle.
Page 271 • SAE 15W-40 As shown in the viscosity chart, SAE 15W-40 is best for your vehicle. However, you can use SAE 10W-30 at temperatures above 0°F (−18°C). When it is very cold, below 0°F (−18°C), you should use SAE 5W-40 to improve cold starting.
Page 272: Engine Oil Life System (Gasoline Engine)
® Engine Oil Life System GM Goodwrench oil of the recommended viscosity grades meets all the requirements for (Gasoline Engine) your vehicle. When to Change Engine Oil Engine Oil Additives Your vehicle has a computer system that lets you Do not add anything to the oil. The recommended know when to change the engine oil and ﬁlter.
Page 273 How to Reset the Engine Oil Life However, your engine oil and ﬁlter must be changed at least once a year and at this time System the system must be reset. Your dealer has The Engine Oil Life System calculates when to GM-trained service people who will perform this change your engine oil and ﬁlter based on vehicle work using genuine GM parts and reset the...
Page 274: Engine Oil Life System (Duramax ® Diesel)
What to Do with Used Oil Engine Oil Life System ® (DURAMAX Diesel) Used engine oil contains certain elements that may be unhealthy for your skin and could When to Change Engine Oil even cause cancer. Do not let used oil stay on your skin for very long.
Page 275: How To Reset The Engine Oil Life System
Your dealer has GM-trained service people who will To reset the Engine Oil Life System, do the perform this work using genuine GM parts and reset following: the system. It is also important to check your oil 1. Turn the ignition key to RUN with the regularly and keep it at the proper level.
Page 276: Engine Oil Life System (Caterpillar ® Diesel Engine)
Used oil can be a threat to the environment. If you To reset the Engine Oil Life System, do the change your own oil, be sure to drain all the oil from following: the ﬁlter before disposal. Never dispose of oil by 1.
Page 277: Engine Air Cleaner/Filter
Engine Air Cleaner/Filter When to Inspect the Engine Air Cleaner/Filter The engine air cleaner/ﬁlter is located If your vehicle has an in the center of the air cleaner/ﬁlter change engine compartment. indicator, inspect the indicator at every oil change and replace the ﬁlter when the indicator tells you to.
Page 278 How to Inspect the Engine Air Cleaner/Filter CAUTION: Locate the ﬁlter change indicator. When the Operating the engine with the air change indicator turns black or is in the red/orange change area, replace the ﬁlter and reset the cleaner/ﬁlter off can cause you or others indicator.
Page 279 Hood Inlet Seal If your vehicle is being used in heavy snow conditions or for snow plowing, there is a possibility of snow and ice build up in the inlet to the air cleaner, blocking airﬂow to the engine and negatively impacting engine performance. To prevent the blocking of air, remove the hood inlet seal, by doing the following: 1.
Page 280: Automatic Transmission Fluid
Automatic Transmission Fluid Automatic Transmission External Filter When to Check Your automatic transmission ﬁlter requires periodic replacement. A good time to check your automatic transmission Consult the Allison Automatic Transmission ﬂuid level is when the engine oil is checked. Operator’s Manual that came with the vehicle for See your Allison Automatic Transmission proper change intervals.
Page 281 How to Check and What to Use How to Add Fluid Check the ﬂuid level only when your engine is off, To add transmission ﬂuid, do the following: the vehicle is parked on a level place, and the 1. Remove the ﬁller plug. transmission is cool enough for you to rest your 2.
Page 282: Engine Coolant (Gas And Duramax Isuzu Engines)
Engine Coolant (Gas and • Help keep the proper engine temperature. ® • DURAMAX /Isuzu Engines) Let the warning lights and gages work as they should. The cooling system in your vehicle is ﬁlled with Notice: Using coolant other than ®...
Page 283 Notice: If you use an improper coolant mixture, your engine could overheat and be CAUTION: badly damaged. The repair cost would not be covered by your warranty. Too much water Adding only plain water to your cooling in the mixture can freeze and crack the engine, system can be dangerous.
Page 284 Checking Coolant CAUTION: Turning the surge tank pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. Never turn the surge tank pressure cap — even a little — when the engine and radiator are hot.
Page 285: Engine Coolant (Caterpillar Diesel Engines)
® Adding Coolant Engine Coolant (Caterpillar Diesel Engines) If you need more coolant, add the proper ® DEX-COOL coolant mixture at the surge tank, ® If your vehicle has a Caterpillar diesel engine, but only when the engine is cool. ®...
Page 286: Engine Overheating
Engine Overheating If Steam Is Coming From Your Engine You will ﬁnd an engine coolant temperature gage, as well as a low coolant warning light, on your CAUTION: vehicle’s instrument panel. See Engine Coolant Temperature Gage on page 171 and Low Coolant Steam from an overheated engine can Warning Light on page 171 for more information.
Page 287 If No Steam Is Coming From 2. Turn on your heater to full hot at the highest fan speed and open the windows as necessary. Your Engine 3. If climbing a hill, downshift to raise engine and An overheat warning, along with a low coolant fan speeds.
Page 288: Cooling System (Gas And Duramax Isuzu Engines)
® Cooling System (Gas and If your vehicle has a Caterpillar diesel engine, ® see the Caterpillar Diesel Engine Operation and ® DURAMAX /Isuzu Engines) Maintenance Manual provided with your vehicle. When you decide it is safe to lift the hood, here is If the coolant inside the coolant surge tank is what you will see: boiling, do not do anything else until it cools down.
Page 289 ® Notice: Using coolant other than DEX-COOL may cause premature engine, heater core, CAUTION: or radiator corrosion. In addition, the engine coolant could require changing sooner, at Heater and radiator hoses, and other 30,000 miles (50 000 km) or 24 months, engine parts, can be very hot.
Page 290 If no coolant is visible in the surge tank, add coolant as follows: CAUTION: CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can Steam and scalding liquids from a hot boil before the proper coolant mixture will.
Page 291 2. Then keep turning the pressure cap slowly, and remove it. CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine.
Page 292: Engine Fan Noise
Engine Fan Noise Your vehicle has a clutched engine cooling fan. When the clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the clutch is not fully engaged. This improves fuel economy and reduces fan noise.
Page 293: Power Steering Fluid
Power Steering Fluid What to Use To determine what kind of ﬂuid to use, see Part C: See Scheduled Maintenance on page 363 to Recommended Fluids and Lubricants on page 397. determine when to check your power steering ﬂuid. Notice: When adding power steering ﬂuid or How To Check Power Steering Fluid making a complete ﬂuid change, always Check your power steering ﬂuid only when...
Page 294: Brakes
Adding Washer Fluid • Fill your washer ﬂuid tank only three-quarters full when it is very cold. Open the cap with the This allows for expansion if freezing washer symbol on it. occurs, which could damage the tank if it Add washer ﬂuid is completely full.
Page 295 Checking Brake Fluid CAUTION: Apply the brake pedal several times with the ignition off. The brake ﬂuid reservoir is in the engine compartment on the driver side of the Do not add brake ﬂuid before you check vehicle. Clean one of the reservoir caps and the level.
Page 296 What to Add Notice: • Using the wrong ﬂuid can badly damage Use the proper ﬂuid listed in the Maintenance brake system parts. For example, just a few Schedule. Use new brake ﬂuid from a sealed drops of mineral-based oil, such as engine container only.
Page 297 Four-Wheel Disc Brakes Brake Adjustment (Hydraulic Only) Every time you make a brake stop, the brakes adjust for wear. Your vehicle has four-wheel disc brakes. Brake Adjustment on Air Braked Some driving conditions or climates may cause a brake squeal when the brakes are ﬁrst applied Vehicles or lightly applied.
Page 298: Air Dryer
Replacing Brake System Parts There are two ways to do this. One is automatic through the air brake vehicle’s air dryer with intregal The braking system on a vehicle is complex. automatic moisture ejector that purges air from Its many parts have to be of top quality and work the system through a self-contained reservoir.
Page 299 Electric Air Compressor Clutch Pedal Free Travel Your vehicle may have an electric air compressor. If you have a V8 engine and a manual transmission, This compressor is used to run options that the clutch will need adjustment when pedal free require pressurized air, such as an air horn, air travel gets down to about 1/4 inch (6 mm), as seat, 7.8L engine exhaust restrictor, or 7.8L engine...
Page 300 Single Axle Models Item Number Item Remarks Brake Camshaft** One ﬁtting each (apply sparingly). Steering Column Slip Joint* One ﬁtting. Steering Drag Link Ends One ﬁtting each end.
Page 301 Item Number Item Remarks Pivot Points and Hinges Apply chassis lubricant. Pivot Points and Hinges Apply chassis lubricant. Slack Adjuster** One ﬁtting. Brake Cam Roller Pins at interface Apply engine oil. of pin and shoe** One ﬁtting each side, lower bushing. Front Steering Knuckles (Hand-operated grease gun only.) Hand-pack upper bearing.
Page 302 Tandem Axle Models Item Item Remarks Number Brake Camshafts One ﬁtting each. One ﬁtting each joint. Lubricate with GM Propshaft U-Joint Part No. 1051344, Wheel Bearing Lubricant Fill to level of Rear Axles ﬁller plug. Apply engine oil Brake Shoe at pin to shoe Roller Pins joint only.
Page 303: Battery
Battery Vehicle Storage If you are not going to drive your vehicle for Your vehicle has one or more maintenance free 25 days or more, remove the black, negative (−) batteries. When it is time for a new battery, be sure cable from the battery.
Page 304: Jump Starting
Jump Starting Notice: Ignoring these steps could result in costly damage to your vehicle that would If your vehicle’s battery (or batteries) has run not be covered by your warranty. down, you may want to use another vehicle and Trying to start your vehicle by pushing or some jumper cables to start your vehicle.
Page 305 2. Get the vehicles close enough so the jumper 3. Turn off the ignition on both vehicles. Unplug cables can reach, but be sure the vehicles are unnecessary accessories plugged into the not touching each other. If they are, it could cigarette lighter or accessory power outlets.
Page 306 You will not see the battery (or batteries) of your vehicle under the hood. They are located CAUTION: (Continued) in a frame mounted battery box, which is located on either the driver’s or the passenger’s But if a battery has ﬁller caps, be sure the side of the vehicle.
Page 307 5. Check that the jumper cables do not have 6. Connect the red loose or missing insulation. If they do, you positive (+) cable could get a shock. The vehicles could to the positive (+) be damaged too. terminal of the dead battery.
Page 308 9. Connect the other end of the negative (−) cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less.
Page 309: Rear Axle
Rear Axle To disconnect the jumper cables from both vehicles, do the following: When to Check and Change Lubricant 1. Disconnect the black negative (−) cable from the vehicle that had the dead battery. Refer to the Maintenance Schedule to determine 2.
Page 310: Rear Axle Shift Motor
How to Check Lubricant Rear Axle Shift Motor When to Check and Change Fluid If you have an optional air-shift two-speed, controlled traction, or locking differential type rear axle, a good time to check the ﬂuid level in the axle shift motor is when the rear axle lubricant is checked.
Page 311: Four-Wheel Drive
Four-Wheel Drive To get an accurate reading, the vehicle should be on a level surface. Transfer Case If the level is below the bottom of the ﬁll plug hole, located on the transfer case, you’ll need to add When to Check Lubricant some lubricant.
Page 312: Front Axle
Front Axle How to Check Lubricant When to Check Lubricant It is not necessary to regularly check front axle ﬂuid unless you suspect there is a leak or you hear an unusual noise. A ﬂuid loss could indicate a problem. Have it inspected and repaired. Notice: If you drive your vehicle through deep water that is higher than the front or rear axle, water may enter the axle housing and...
Page 313: Noise Control System
Noise Control System Federal law prohibits the following acts or the causing thereof: 1. The removal or rendering inoperative by Tampering with Noise Control any person, other than for purposes of System Prohibited maintenance, repair or replacement, of any device or element of design incorporated into The following information relates to compliance any new vehicle for the purpose of noise with federal noise emission standards for vehicles...
Page 314: Bulb Replacement
Exhaust: Among those acts presumed to constitute tampering are the acts listed below. • Removal of the muffler and/or resonator. Insulation: • Removal of the exhaust pipes and exhaust pipe clamps. • Removal of the noise shields or any underhood insulation. Bulb Replacement Engine: It is recommended that all bulbs be replaced by...
Page 315 Here’s how to remove the wiper blade: 2. Push the release lever and slide the wiper assembly toward the driver’s side of the 1. Pull the windshield wiper arm away from the vehicle. windshield. 3. Install a new blade by reversing Steps 1 and 2.
Page 316: Windshield Wiper Blade Replacement Other Service Items
Other Service Items Primary Fuel Filter and Water Separator Fuel Filter If you have a diesel Fuel Filter/Pressure Regulator engine, you may have (Gasoline Engines) this spin-on ﬁlter. It is located on the driver’s The steel fuel ﬁlter/pressure regulator is located side frame rail.
Page 317: Secondary Fuel Filter And Water Separator/Heater
® See Engine Oil (Caterpillar Diesel Engine) on It has a metal drain bowl at the bottom. page 264 or Engine Oil (Gasoline Engine) Occasionally, check the bowl for any water or ® on page 265 or Engine Oil (DURAMAX /Isuzu particles.
Page 318: Automatic Ether Injection System
Automatic Ether Injection System To change an empty ether cylinder, follow these steps. ® (Caterpillar Diesel) 1. Loosen the screw head on the ® If you have a Caterpillar cylinder-to-bracket clamp. diesel engine, you may 2. Spread the clamp apart. have this feature.
Page 319: Front Wheel Bearings With Oil-Filled Hubs
Front Wheel Bearings with If there isn’t, clean the rubber ﬁll plug in the center of the glass, and then remove it. Be careful not Oil-Filled Hubs to allow any dirt or water to get into the oil. Notice: If you drive your vehicle through deep Add enough of the recommended oil to bring it up water that is higher than the front or rear to the level mark that you’ll see on the glass.
Page 320: Tires
Tires CAUTION: (Continued) Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever • Underinﬂated tires pose the same have questions about your tire warranty and where danger as overloaded tires. The to obtain service, see your GM Warranty booklet resulting accident could cause serious for details.
Page 321: Inﬂation - Tire Pressure
Inﬂation - Tire Pressure When to Check Check your tires once a month or more. The Certiﬁcation or Tire Information label shows the correct inﬂation pressures for your tires when they Also, check the tire pressure of the spare tire if are cold.
Page 322: Dual Tire Operation
Dual Tire Operation When It Is Time for New Tires When the vehicle is new, check the wheel nut Replace your tires when the tread depth is down tightness on all wheels with a torque wrench after to 1/8 of an inch (3.2 mm) for the front tires, your ﬁrst 100 miles (160 km) and then 1,000 miles or 1/16 of an inch (1.6 mm) for a rear tire.
Page 323: Wheel Alignment And Tire Balance
Wheel Alignment and Tire Balance CAUTION: The wheels on your vehicle were aligned at the factory to give you the longest tire life and best overall performance. Mixing tires could cause you to lose control while driving. If you mix tires Proper front wheel alignment must be maintained of different types —...
Page 324: Tightening The Wheel Nuts
Tightening the Wheel Nuts CAUTION: Wheel nuts that are not tight can work loose. If all the nuts on a wheel come off, the wheel can come off the vehicle, causing a crash. All wheel nuts must be properly tightened. Follow the rules in this Hub-Piloted Type, Hub-Piloted Type, section to be sure they are.
Page 325 Hub-Piloted Wheels, 8-Hole or 10-Hole 4. Finger-tighten the nuts. 5. Oil the surfaces (B) The studs and nuts used with these wheels have between the nuts (C) right-hand threads. and washers (A). 1. With intermittent pilot pads, position a pad at Do not oil the studs 12 o’clock to center the wheel and reduce or the threads of...
Page 326 6. Tighten the nuts to 400 lb ft (542 ) if an 8-hole stud or 480 lb ft (650 ) if a 10-hole stud, using the following diagrams. 10-Hole (Front) 10-Hole (Rear) CAUTION: 8-Hole Never use oil or grease on studs or the threads of the wheel nuts.
Page 327 CAUTION: CAUTION: If wheel studs are damaged, they can Rust or dirt on a wheel, or on the parts to break. If all the studs on a wheel broke, which it is fastened, can make wheel nuts the wheel could come off and cause a become loose after a time.
Page 328: Wheel Replacement
How Often to Check If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM Wheel tightness is so important you should have a original equipment parts. This way, you will be sure technician check nut tightness on all wheels to have the right wheel, wheel bolts and wheel nuts with a torque wrench after your ﬁrst 100 miles...
Page 329 Notice: The wrong wheel can cause trouble in bearing life, brake cooling, speedometer/ CAUTION: odometer calibration, headlamp aim, bumper height, vehicle ground clearance, stopping Without the correct wheel, you may not be distance and tire clearance to the body and able to stop properly, and you could have chassis.
Page 330: If A Tire Goes Flat
If a Tire Goes Flat CAUTION: It is unusual for a tire to blowout while you are driving, especially if you maintain your tires properly. If air goes out of a tire, it is much more Your vehicle, when new, did not include likely to leak out slowly.
Page 331: Appearance Care
Appearance Care CAUTION: Cleaning the Inside of Your Vehicle If you try to put air back into a tire that Your vehicle’s interior will continue to look its best if has run ﬂat, even a tire that was extremely it is cleaned often. Although not always visible, dust low on air, the tire can have a sudden and dirt can accumulate on your upholstery.
Page 332 When cleaning your vehicle’s interior, only use Do not clean your vehicle using the following cleaners speciﬁcally designed for the surfaces cleaners or techniques: being cleaned. Permanent damage may result from • Never use a knife or any other sharp object to using cleaners on surfaces for which they were not remove a soil from any interior surface.
Page 333: Fabric/Carpet
Fabric/Carpet 3. Start on the outside edge of the soil and gently rub toward the center. Continue Use a vacuum cleaner with a soft brush cleaning, using a clean area of the cloth attachment frequently to remove dust and loose each time it becomes soiled.
Page 334: Instrument Panel, Vinyl, And Other Plastic Surfaces
Instrument Panel, Vinyl, and Other Care of Safety Belts Plastic Surfaces Keep belts clean and dry. A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is CAUTION: necessary, a clean soft cloth dampened with a mild soap solution can be used to gently remove dust Do not bleach or dye safety belts.
Page 335: Washing Your Vehicle
Washing Your Vehicle All cleaning agents should be ﬂushed promptly and not allowed to dry on the surface, or they could The paint ﬁnish on the vehicle provides beauty, stain. Dry the ﬁnish with a soft, clean chamois or an depth of color, gloss retention, and durability.
Page 336: Finish Care
Finish Care Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll Occasional waxing or mild polishing of your over a period of years. You can help to keep vehicle by hand may be necessary to remove the paint ﬁnish looking new by keeping your residue from the paint ﬁnish.
Page 337: Windshield And Wiper Blades
Windshield and Wiper Blades Notice: If you use strong soaps, chemicals, abrasive polishes, cleaners, brushes, or If the windshield is not clear after using the cleaners that contain acid on aluminum or windshield washer, or if the wiper blade chatters chrome-plated wheels, you could damage the when running, wax, sap, or other material may surface of the wheel(s).
Page 338: Tires
Tires Finish Damage To clean the tires, use a stiff brush with tire Any stone chips, fractures or deep scratches in cleaner. the ﬁnish should be repaired right away. Bare metal will corrode quickly and may develop into Notice: Using petroleum-based tire dressing major repair expense.
Page 339: Chemical Paint Spotting
Chemical Paint Spotting Vehicle Care/Appearance Materials (cont’d) Some weather and atmospheric conditions can Description Usage create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the White Sidewall Removes soil and black vehicle. This damage can take two forms: blotchy, Tire Cleaner marks from whitewalls.
Page 340: Vehicle Identiﬁcation
Vehicle Care/Appearance Materials Vehicle Identiﬁcation (cont’d) Description Usage Vehicle Identiﬁcation Number (VIN) Cleans, shines and Foaming Tire Shine protects in one easy step, Low Gloss no wiping necessary. Medium foaming shampoo. Cleans Wash Wax Concentrate and lightly waxes. Biodegradable and phosphate free.
Page 341: Service Parts Identiﬁcation Label
Service Parts Identiﬁcation Label Electrical System You will ﬁnd this label in a location determined by Add-On Electrical Equipment the body manufacturer. It is very helpful if you ever need to order parts. On this label, you will ﬁnd Notice: Do not add anything electrical to your the following: vehicle unless you check with your dealer •...
Page 342: Windshield Wiper Fuses
Windshield Wiper Fuses Power Windows and Other Power Options The windshield wiper motor is protected by a circuit breaker inside the motor and a circuit Circuit breakers in the fuse panel protect the power breaker or fuse in the fuse block. If the motor windows and other power accessories.
Page 343 Fuse Usage Fuse Usage Stoplamps Auxiliary Wiring Center High-Mounted Stoplamp Heater/Air Conditioning Parking Lamps Hazard Warning Flashers Powertrain Control Module Power Post...
Page 344 Fuse Usage Fuse Usage Courtesy Lamps Spare Warning Lights, Gages Spare and Indicators Starter Fuse Usage Rear Axle/Four-Wheel-Drive Blank Not Used Trailer Turn Signals/Hazard Brake Warning Lamp Warning Flashers RT PRK Passenger’s Side Parking Lamps Radio/Chime Blank Not Used Daytime Running Lamps Blank Not Used Airbag System...
Page 345: Underhood Fuse Block
Underhood Fuse Block Relay Usage Engine Control Unit/Power When a circuit goes out, the problem could be in ECU/PTO* ® Take-Off *Diesel 7.8 DURAMAX either the primary or secondary underhood fuse blocks. These blocks use blade-type fuses. C4/C5 Brake Lamps, BRK LAMP C6/C7/C8 Tractor/Trailer Wiring Both underhood fuse blocks are located in...
Page 346 Fuse Usage ENG 4 Engine 4 ENG 2 Engine 2 HTD FUEL Heated Fuel BLANK Not Used BLANK Not Used Emissions A/C COMP Air Conditioning Compressor ABS 1 Anti-lock Brake System 1 ABS 2 Anti-lock Brake System 2 ABS 3 Anti-lock Brake System 3 Primary Underhood Fuse Block ENGINE...
Page 347 Fuse Usage STUD A Spare STUD B Spare Relay Usage LLY/L18 Fuel Pump Relay, NOTE 1 LG4/LG5 Heated Fuel Relay IGN B Ignition Relay STARTER Starter Relay Secondary Underhood HORN Horn Relay Fuse Block IGN A Ignition Relay Power Take-Off/Engine Control Unit Fuse Usage PTO/ECU*...
Page 348: Capacities And Speciﬁcations
Capacities and Speciﬁcations The following approximate capacities are given in English and metric conversions. See Part C: Recommended Fluids and Lubricants on page 397 for more information. Capacities Application English Metric For the air conditioning system refrigerant charge amount, see the refrigerant caution label Air Conditioning Refrigerant R134a located under the hood.
Page 349 Capacities Application English Metric Cooling System – C6/C7/C8 Manual Transmission 7.2L 207 - 230 hp Engine 29.3 qt 27.7 L 7.2L 207 - 230 hp Engine with A/C and Increased Cooling 33.0 qt 31.2 L 7.2L 250 - 300 hp Engine 32.8 qt 31.0 L 7.2L 250 - 300 hp Engine with A/C and Increased Cooling...
Page 350 Capacities Application English Metric Isuzu 6H 23.8 qt 22.5 L 8.1L 10.0 qt 9.4 L Check ﬁll level on the oil indicator after initial ﬁll to make sure it is actually full. Oil level may vary depending on vehicle option content. Additional oil is required with auxiliary oil ﬁlter systems.
Page 351 Capacities Application English Metric Optional 50 gal 189.2 L Optional (Dual Tanks) 70 gal 264.8 L Optional (Dual Tanks) 75 gal 283.8 L Optional (Dual Tanks) 100 gal 378.5 L Two 35-gallon (132.4 L) tanks One 25-gallon (94.6 L) tank and one 50-gallon (189.2 L) tank Two 50-gallon (189.2 L) tanks Front 4WD Axle (G38) 7.0 pt...
Page 352 Capacities Application English Metric DS404 (HPE), DS404P (HPJ) (front/rear unit) 32.0 pt 15.1 L RSH44 (front/ rear unit) (HP3) 29.0 pt 13.7 L Rear Axle – Two-Speed 19060T (HPL), 22060T (HPH) 38.0 pt 18.0 L 21060T (H15) 38.0 pt 18.0 L 23082T (H25) 44.0 pt 20.8 L...
Page 353 Capacities Application English Metric Transmission Fluid, Manual ES052-7, ES066-7 22.0 pt 10.4 L FS5205A 12.5 pt 5.9 L FSO8406, FS6305A, FS6305B, FS6406, FS5406A 19.5 pt 9.2 L FS4205A, FS4205B 11.5 pt 5.4 L RT6609 12.0 pt 5.7 L RT8709 26.0 pt 12.3 L RT8908LL 28.0 pt...
Page 354: Normal Maintenance Replacement Parts
Normal Maintenance Replacement Parts Replacement parts identiﬁed by name, part number, or speciﬁcation can be obtained from your dealer. ® Part GM Part Number ACDelco Part Number Air Compressor Filter 88915425 A507CF Haldex compressor (8.1L Engine Only) Engine Air Cleaner/Filter 6.6L;...
Page 355 ® Part GM Part Number ACDelco Part Number Power Steering Fluid Filter 88892858 — Secondary Fuel Filter 6.6L — — 7.2L 25014274 TP915D 7.2L (KUK) 88983117 TP1519 7.2L (NWB) 15618921 — 7.8L 25014274 TP915D 7.8L (KUK) 88983117 TP1519 8.1L (K28 and standard Uhaul) 25014476 TP1247 Spark Plugs...
Page 356: Engine Drive Belt Routing
Engine Drive Belt Routing 8.1L V8 Engine (C6,C7,C8) Air conditioning compressor (A). 8.1L V8 Engine (C4, C5) Air brake compressor (B). Air conditioning compressor (A). Dual Generators (B).
Page 357 ® 6.6L V8 DURAMAX Diesel Engine Isuzu 6H Diesel Engine Dual Generators (A). Air conditioning compressor (A).
Page 358 7.2L V6 ® Caterpillar Diesel Engine Air conditioning compressor (A).
Page 359: Maintenance Schedule
Section 6 Maintenance Schedule Maintenance Schedule ........ 360 Scheduled Maintenance ......363 Introduction ..........360 Part B: Owner Checks and Services ..391 Maintenance Requirements ......360 At Each Fuel Fill ........391 Your Vehicle and the Environment .... 360 At Least Twice a Year ......
Page 360: Maintenance Schedule
Maintenance Schedule Your Vehicle and the Environment Proper vehicle maintenance not only helps to Introduction keep your vehicle in good working condition, but also helps the environment. Improper vehicle Important: Keep engine oil at the proper level maintenance can even affect the quality of the air and change as recommended.
Page 361 “Part B: Owner Checks and Services” tells you what should be checked and when. CAUTION: It also explains what you can easily do to keep your vehicle in good condition. Performing maintenance work on a “Part C: Recommended Fluids and Lubricants” vehicle can be dangerous.
Page 362: Part A: Scheduled Maintenance Services
Part A: Scheduled Maintenance When you go to your dealer for your service needs, you will know that GM-trained and Services supported service people will perform the work using genuine GM parts. In this part are scheduled maintenance services which are to be performed at the mileage intervals The proper ﬂuids and lubricants to use are listed speciﬁed.
Page 363: Scheduled Maintenance Supplements
® Scheduled Maintenance Gasoline engine vehicles and some DURAMAX diesel and Isuzu 6H diesel engine vehicles have a Supplements computer that lets you know when to change the engine oil. This is not based on mileage, but on ® If your vehicle has a Caterpillar diesel engine operation and engine temperature.
Page 364 7,500 Miles (12 000 km) Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs Gasoline Engine Only: Check engine oil life ﬁrst). Lubricate linkage. system. If engine oil and ﬁlter are changed, Air brake chamber service (or every 2 months, reset system.
Page 365 15,000 Miles (24 000 km) Diesel Engine: Inspect engine air cleaner ﬁlter change indicator. If necessary, replace the Gasoline Engine Only: Check engine oil life ﬁlter. If vehicle is driven in dusty/dirty conditions, system. If engine oil and ﬁlter are changed, inspect ﬁlter change indicator at every engine reset system.
Page 366 Check air brake relay valve operation and Chassis lubrication service (or every 6 months, check for leaks (or every month, or every whichever occurs ﬁrst). (11) 300 hours, whichever occurs ﬁrst). Inspect door hinge pins and bushings and Clean air brake application valve (or every replace as necessary.
Page 367 24,000 Miles (40 000 km) Check air brake relay valve operation and check for leaks (or every month, or every Isuzu 6H Diesel Without Engine Oil Life System 300 hours, whichever occurs ﬁrst). Only: Change engine oil and ﬁlter (or every Clean air brake application valve (or every 12 months, or every 600 hours of engine 3 months, or every 300 hours, whichever...
Page 368 30,000 Miles (48 000 km) Diesel Engine: Inspect engine air cleaner ﬁlter change indicator. If necessary, replace the Gasoline Engine Only: Check engine oil life ﬁlter. If vehicle is driven in dusty/dirty conditions, system. If engine oil and ﬁlter are changed, inspect ﬁlter change indicator at every engine reset system.
Page 369 Parking brake service (or every 6 months, Shields and underhood insulation whichever occurs ﬁrst). (21) service. (3) (4) (20) Air brake service (or every 6 months, whichever Gasoline Engine: Air compressor remote occurs ﬁrst). (32) mounted air ﬁlter dry element pleated paper air strainer service (or every 6 months or Air brake automatic slack adjuster service (or every 1800 hours, whichever occurs ﬁrst).
Page 370 37,500 Miles (60 000 km) Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs Gasoline Engine Only: Check engine oil life ﬁrst). Lubricate linkage. system. If engine oil and ﬁlter are changed, Air brake chamber service (or every 2 months, reset system.
Page 371 Diesel Engine: Inspect engine air cleaner ﬁlter Spring-to-axle U-bolts and shackle bolts change indicator. If necessary, replace the service. (15) ﬁlter. If vehicle is driven in dusty/dirty conditions, Exhaust system service (or every 6 months, inspect ﬁlter change indicator at every engine whichever occurs ﬁrst).
Page 372 48,000 Miles (75 000 km) Air brake system valve service (or every 3 months, or every 900 hours, whichever Isuzu 6H Diesel Without Engine Oil Life System occurs ﬁrst). (37) Only: Change engine oil and ﬁlter (or every Thermostatically controlled engine cooling 12 months, or every 600 hours of engine fan service.
Page 373 52,500 Miles (84 000 km) Clean air brake application valve (or every 3 months, or every 300 hours, whichever Gasoline Engine Only: Check engine oil life occurs ﬁrst). Lubricate linkage. system. If engine oil and ﬁlter are changed, Air brake chamber service (or every 2 months, reset system.
Page 374 Isuzu 6H Diesel With Engine Oil Life System Chassis lubrication service (or every 6 months, Only: Check oil life system (or every 12 months, whichever occurs ﬁrst). (11) or every 600 hours of engine operation, Replace fuel ﬁlter(s) (or every 12 months, whichever occurs ﬁrst).
Page 375 67,500 Miles (108 000 km) Air brake service (or every 6 months, whichever occurs ﬁrst). (32) Gasoline Engine Only: Check engine oil life Air brake automatic slack adjuster service (or system. If engine oil and ﬁlter are changed, every 500 hours, whichever occurs ﬁrst). (33) reset system.
Page 376 72,000 Miles (115 000 km) Air brake automatic slack adjuster service (or every 500 hours, whichever occurs ﬁrst). (33) Isuzu 6H Diesel Without Engine Oil Life System Check air brake relay valve operation and check Only: Change engine oil and ﬁlter (or every for leaks (or every month, or every 300 hours, 12 months, or every 600 hours of engine whichever occurs ﬁrst).
Page 377 ® 6.6L DURAMAX Diesel With Engine Oil Life Front and rear suspension service. (13) System Only: Check oil life system. If engine Spring-to-axle U-bolts and shackle bolts oil and ﬁlter are changed, reset system. service. (15) ® See “Engine Oil (DURAMAX /Isuzu Diesel)”...
Page 378 Fuel tank, fuel cap and fuel lines service Chassis lubrication service (or every 6 months, (or every 72 months, whichever occurs whichever occurs ﬁrst). (11) ﬁrst). (2) (26) † Wheels and tires service. (14) Exhaust Gas Recirculation (EGR) system Hydraulic brake service (or every 6 months, inspection (if equipped) (or every 72 months, whichever occurs ﬁrst).
Page 379 ® 84,000 Miles (140 000 km) 6.6L DURAMAX Diesel With Engine Oil Life System Only: Check oil life system. If engine Isuzu 6H Diesel Without Engine Oil Life System oil and ﬁlter are changed, reset system. Only: Change engine oil and ﬁlter (or every ®...
Page 380 Cooling system service. Clean the cooling Air brake service (or every 6 months, whichever system ﬁller cap with clean water, clean occurs ﬁrst). (32) the core, pressure test the cap and the Air brake automatic slack adjuster service (or system for proper pressure capability, every 500 hours, whichever occurs ﬁrst).
Page 381 97,500 Miles (156 000 km) Air intake system service (or every 24 months, whichever occurs ﬁrst). (3) (4) (23) Gasoline Engine Only: Check engine oil life Evaporative Control System service, if system. If engine oil and ﬁlter are changed, equipped, (or every 24 months, whichever reset system.
Page 382 Clean air brake application valve (or every Exhaust brake service, if equipped. Check for 3 months, or every 300 hours, whichever excessive spindle free play and smooth occurs ﬁrst). Lubricate linkage. operation. Lubricate ball joint cap. Air brake chamber service (or every 2 months, Inspect air compressor discharge port (or every whichever occurs ﬁrst).
Page 383 200,000 Miles (320 000 km) 300,000 Miles (480 000 km) ® ® ® ® Rear axle service — Eaton , Rockwell Rear axle service — Eaton , Rockwell ® ® Spicer axles (or every 12 months, Spicer axles (or every 12 months, whichever occurs ﬁrst).
Page 384 (2) = An Emission Control Service. (7) = This vehicle has the Engine Oil Life System. This system will show you when to change the (3) = A Noise Emission Control Device. engine oil and ﬁlter — usually between 3,000 miles (4) = Applies to vehicles sold in the United States (5 000 km) and 12,000 miles (20 000 km) since and is recommended for vehicles sold in Canada.
Page 385 (8) = This vehicle has the Engine Oil Life System. (9) = This vehicle has the Engine Oil Life System. This system will show you when to change the This system will show you when to change the engine oil and ﬁlter — usually between 3,000 miles engine oil and ﬁlter —...
Page 386 (11) = Chassis Lubrication Service: Lubricate all (12) = Check steering system: grease ﬁttings in front suspension, front axle, • Look for damaged, loose, or missing parts. and steering linkage. DO NOT lubricate kingpin Inspect the steering linkage relay rod and bushings with air pressure equipment;...
Page 387 (13) = Check front and rear suspension. Look (16) = Check complete exhaust system and for damaged, loose, or missing parts or parts cab areas near the exhaust system for broken, showing signs of wear or lack of lubrication. damaged, missing, or out-of-position parts. Replace parts as needed.
Page 388 (22) = Wheel bearing service: (24) = Evaporative Control System Service, if equipped: Check all fuel and vapor lines and • Grease type — Clean, inspect, and lubricate hoses for proper connections and correct routing with the proper wheel bearing grease at (or every 24 months, whichever occurs ﬁrst).
Page 389 (28) = Inspect Electronic Vacuum Regulator (32) = Air brake service: Valve (EVRV) ﬁlter for excessive contamination • Inspect brake lines and hoses for proper or plugging. If needed, clean ﬁlter with solution hook-up, binding, leaks, cracks, chaﬁng, of soap and water, let dry and install. etc.
Page 390 • (34) = Air brake chamber service: Check operation, Replace the air compressor ﬁlter element, mounting clamps, and air lines and check for leaks. mounted on the air compressor. For remote air compressor intake service, refer to engine (35) = Trailer brake hand control valve service: air cleaner ﬁlter replacement.
Page 391: Part B: Owner Checks And Services
Part B: Owner Checks and Services Engine Oil Level Check Check the engine oil level and add the proper oil Listed in this part are owner checks and services ® if necessary. See Engine Oil (Caterpillar Diesel which should be performed at the intervals Engine) on page 264 or Engine Oil (Gasoline speciﬁed to help ensure the safety, dependability Engine) on page 265 or Engine Oil...
Page 392: At Least Twice A Year
At Least Twice a Year Body Lubrication Service Lubricate all exposed surfaces such as door Restraint System Check checks, door lock bolts, lock strike plates, door Make sure the safety belt reminder light hinge bushings, latches, and dovetail bumper (if equipped) and all your belts, buckles, latch wedges.
Page 393 Starter Switch Check Automatic Transmission Shift Indicator Check Check that the indicator points to the gear chosen. CAUTION: Steering Check When you are doing this inspection, the Be alert for any changes in steering action, vehicle could move suddenly. If the vehicle abnormal front tire wear or steering wheel position.
Page 394 Engine Cooling System Service Windshield Wipers and Washers Check Inspect the hoses and have them replaced if Check operation and condition of the wiper they are cracked, swollen, or deteriorated. blades. Check the ﬂow of the washer spray. Inspect all pipes, ﬁttings, and clamps; replace as Defroster Check needed.
Page 395 Lamps Check Door Latches Check Check panel lighting, warning lights, indicator Check that doors close, latch, and lock tightly. lights, and interior lamps. On the outside, Check for broken, damaged, or missing parts check: license plate lamps, sidemarker lamps, that might prevent tight latching. reﬂectors or lights on outside mirrors, headlamps, Hood Latches Check parking lamps, identiﬁcation and clearance...
Page 396: At Least Once A Year
Underbody Inspection At Least Once a Year Corrosive materials used for ice, snow removal, Key Lock Cylinders Service and dust control can collect on the underbody. If these materials are not removed, accelerated Lubricate the key lock cylinders with the lubricant corrosion (rust) can occur on underbody parts speciﬁed in Part C.
Page 397: Part C: Recommended Fluids And Lubricants
Part C: Recommended Fluids and Usage Fluid/Lubricant Lubricants Engine oil with the letters CJ-4 or CI-4 is best for your vehicle. The Fluids and lubricants identiﬁed below by name, CJ-4 or CI-4 designation may appear either alone or in part number, or speciﬁcation may be obtained Engine Oil combination with other API from your dealer.
Page 398 Usage Fluid/Lubricant Usage Fluid/Lubricant ® 50/50 mixture of clean, drinkable Power Steering DEXRON -VI Automatic ® Engine Coolant water and use only DEX-COOL System Transmission Fluid. (Gasoline Coolant. See Engine Coolant (Gas Synthetic Manual Transmission ® Engine & and DURAMAX /Isuzu Engines) Manual Fluid (GM Part No.
Page 399 Usage Fluid/Lubricant Usage Fluid/Lubricant Wheel bearing lubricant meeting Refrigerant Oil Front Wheel Rear Axle Shift requirements of NLGI #2, (GM Part No. U.S. 5416939, Bearings Motor Lubricant Category GC or GC-LB in Canada 10953496). (Except Oil (GM Part No. U.S. 1051344, Filled Hubs) Wheel bearing lubricant meeting in Canada 993037).
Page 400: Part D: Maintenance Record
Part D: Maintenance Record After the scheduled services are performed, record the date, odometer reading and who performed the service, and any additional information from “Owner Checks and Services” on the following record pages. Also, you should retain all maintenance receipts. Miles/km Or Date Serviced By...
Page 401 Miles/km Or Date Serviced By Maintenance Record Hours...
Page 402 Miles/km Or Date Serviced By Maintenance Record Hours...
Page 403: Customer Assistance Information
Section 7 Customer Assistance Information Customer Assistance and Information ..404 Reporting Safety Defects ......414 Customer Satisfaction Procedure ....404 Reporting Safety Defects to the Customer Assistance for United States Government ..... 414 Text Telephone (TTY) Users ....406 Reporting Safety Defects to the Customer Assistance Offices .....
Page 404: Customer Assistance And Information
Communication Centre in Oshawa by calling Your satisfaction and goodwill are important 1-800-263-3777 (English) or 1-800-263-7854 to your dealer and to GMC. Normally, any (French). concerns with the sales transaction or the operation of your vehicle will be resolved by your We encourage you to call the toll-free number in dealer’s sales or service departments.
Page 405 STEP THREE: Both General Motors and your You may contact the BBB Auto Line Program using dealer are committed to making sure you are the toll-free telephone number or write them at the completely satisﬁed with your new vehicle. following address: However, if you continue to remain unsatisﬁed after BBB Auto Line Program following the procedure outlined in Steps One and...
Page 406: Customer Assistance For Text Telephone (Tty) Users
To assist customers who are deaf, hard of devices (TTYs)) hearing, or speech-impaired and who use Fax Number: 313-381-0022 the Text Telephones (TTYs), GMC has TTY From Puerto Rico equipment available at its Customer Assistance 1-800-496-9992 (English) Center. Any TTY user can communicate with 1-800-496-9993 (Spanish) GMC by dialing: 1-800-GMC-8583 (462-8583).
Page 407: Gm Mobility Reimbursement Program
Overseas – Customer Assistance GM Mobility Reimbursement Program Please contact the local General Motors Business Unit. Mexico, Central America and Caribbean Islands/Countries (Except Puerto Rico and U.S. Virgin Islands) – Customer Assistance General Motors de Mexico, S. de R.L. de C.V. Customer Assistance Center This program, available to qualiﬁed applicants, Paseo de la Reforma # 2740...
Page 408: Roadside Assistance Program
Roadside Assistance Program Roadside Assistance is available 24 hours a day, 7 days a week, 365 days a year. Should you GM Medium Duty Truck’s Roadside Assistance have any questions about Roadside Assistance, provides stranded owners with towing service call the GM Medium Duty Truck Roadside for disabled vehicles.
Page 409: Vehicle Data Collection And Event Data Recorders
Vehicle Data Collection and Event and the severity of a collision. This information has been used to improve vehicle crash Data Recorders performance and may be used to improve crash performance of future vehicles and driving Your vehicle, like other modern motor vehicles, has safety.
Page 410: Collision Damage Repair
Collision Parts In addition, once GM collects or receives data, GM may: Genuine GM Collision parts are new parts made • use the data for GM research needs, with the same materials and construction methods • make it available for research where as the parts with which your vehicle was originally built.
Page 411 Insuring Your Vehicle Aftermarket collision parts are also available. These are made by companies other than GM and Protect your investment in your GM vehicle with may not have been tested for your vehicle. As a comprehensive and collision insurance coverage. result, these parts may ﬁt poorly, exhibit premature There are signiﬁcant differences in the quality durability/corrosion problems, and may not...
Page 412 If an Accident Occurs • If your vehicle cannot be driven, know where the towing service will be taking it. Get a Here is what to do if you are involved in an card from the tow truck operator or write down accident.
Page 413 In some states/provinces with “no fault” parts, either new Genuine GM parts or recycled insurance laws, a report may not be original GM parts. Remember, recycled parts will necessary. This is especially true if there are not be covered by your GM vehicle warranty. no injuries and both vehicles are driveable.
Page 414: Reporting Safety Defects
Reporting Safety Defects Reporting Safety Defects to the Canadian Government Reporting Safety Defects to the If you live in Canada, and you believe that your United States Government vehicle has a safety defect, you should immediately notify Transport Canada, in addition If you believe that your vehicle has a defect which to notifying General Motors of Canada Limited.
Page 415: Service Publications Ordering Information
Transmission, Transaxle, Transfer In Canada, please call us at 1-800-263-3777 (English) or 1-800-263-7854 (French). Or, write: Case Unit Repair Manual General Motors of Canada Limited This manual provides information on unit repair Customer Communication Centre, CA1-163-005 service procedures, adjustments, and 1908 Colonel Sam Drive speciﬁcations for GM transmissions, transaxles, Oshawa, Ontario L1H 8P7...
Page 416 Owner’s Information ORDER TOLL FREE: 1-800-551-4123 Monday-Friday 8:00 AM - 6:00 PM Owner publications are written speciﬁcally for Eastern Time owners and intended to provide basic operational information about the vehicle. The owner’s For Credit Card Orders Only manual will include the Maintenance Schedule for (VISA-MasterCard-Discover), visit Helm, Inc.
Page 417 Airbag System (cont.) Servicing Your Airbag-Equipped Vehicle ..79 Accessory Power Outlet(s) ......154 What Makes an Airbag Inﬂate? ....74 Adding a Snow Plow or Similar Equipment ..236 What Will You See After an Airbag Adding Equipment to Your Airbag-Equipped Inﬂates? ..........
Page 418 Appearance Care (cont.) Automatic Transmission Sheet Metal Damage ....... 338 Fluid ............280 Tires ............338 Operation ..........113 Underbody Maintenance ......338 Axle, Two-Speed Rear Axle Electric Shift Vehicle Care/Appearance Materials ..339 Control ............. 111 Washing Your Vehicle ......335 Weatherstrips ...........
Page 419 Braking in Emergencies ....... 209 Child Restraints Break-In, New Vehicle ........93 Child Restraint Systems ......49 Bucket Seats ..........9 Infants and Young Children ......45 Bulb Replacement ........314 Lower Anchors and Tethers for Children ..57 Older Children ........... 42 Securing a Child Restraint in a Rear Outside Seat Position ......
Page 420 Cleaning (cont.) Customer Assistance Information (cont.) Underbody Maintenance ......338 Reporting Safety Defects to the United Washing Your Vehicle ......335 States Government ....... 414 Weatherstrips ........... 334 Roadside Assistance Program ....408 Windshield and Wiper Blades ....337 Service Publications Ordering Climate Control System .......
Page 421 Driver Electrical System (cont.) Position, Safety Belt ........26 Underhood Fuse Block ......345 Driving Windshield Wiper Fuses ......342 At Night ........... 219 Engine City ............223 Air Cleaner/Filter ........277 Defensive ..........202 Alarm and Automatic Shutdown ....102 Drunken ...........
Page 422 Engine (cont.) Fluid (cont.) Shutdown Warning Light ......175 Four-Wheel Drive ....... 117, 311 Speed Limiter .......... 161 Front Axle ........... 312 Starter Over-Crank Protection ....95 Front Wheel Bearings with Oil-Filled Hubs ... 319 Starting Your Diesel ........98 Fuel ............
Page 423 Fuses (cont.) Underhood Fuse Block ......345 Hazard Warning Flashers ......140 Windshield Wiper ........342 Headlamp Wiring ......... 341 Headlamps Bulb Replacement ........314 Daytime Running Lamps ......149 Gage High/Low Beam Changer ......142 Air Pressure ..........181 On Reminder ...........
Page 424 Lamps (cont.) Marker ............. 150 Ignition Positions ........... 94 Reading ........... 152 Infants and Young Children, Restraints ..45 LATCH System Inﬂation - Tire Pressure ....... 321 Child Restraints ......... 57 Instrument Panel Light Overview ..........138 Airbag Off ..........164 Switchbank ..........
Page 425 Light (cont.) Maintenance Schedule (cont.) Service Transmission Warning ....167 Part B - Owner Checks and Services ..391 Trailer Anti-Lock Brake System Warning ... 170 Part C - Recommended Fluids and Wait to Start Indicator ......172 Lubricants ..........397 Water in Fuel Warning ......
Page 426 Outside Convex Mirrors ........133 Odometer ............ 161 Heated Mirrors ......... 133 Odometer, Trip ..........161 Manual Mirrors ......... 132 Off-Road Recovery ........215 Power Mirrors .......... 132 Overspeed Warning Light ......175 Change Engine Oil Light ......174 Owners, Canadian .......... 3 Engine ........
Page 427 Power (cont.) Rear Axle ............ 309 Electrical System ........342 Differential Lock Control ......211 Reduced Engine Light ......177 Shift Motor ..........310 Steering Fluid .......... 293 Two-Speed Electric Shift Control ....111 Windows ............ 92 Rear Heating System ........159 Power Take-Off (PTO) .........
Page 428 Rocking Your Vehicle to Get it Out ....232 Seats Routing, Engine Drive Belt ......356 Air Suspension Seats ......... 13 Running Out of Fuel ........258 Bucket Seats ..........9 Running the Engine While Parked ....131 Rear Seat Operation ........20 Split Bench Seat ........
Page 429 Starting Your Diesel Engine ......98 Tires (cont.) Starting Your Gasoline Engine ....... 95 Wheel Replacement ......... 328 Steering ............213 When It Is Time for New Tires ....322 Steering Wheel, Tilt Wheel ......140 Tow Hooks ..........233 Storage Areas ..........
Page 430 Water Fuel ............252 Vehicle Water in Fuel Warning Light ......180 Control ............. 206 What Fuel to Use ........249 Damage Warnings ........5 Wheels Loading ............ 234 Alignment and Tire Balance ..... 323 Symbols ............5 Front Bearings with Oil-Filled Hubs ..319 Vehicle Data Collection and Event Data Loading ............

GMC TopKick 2007 Owner's Manual

Table of Contents

Section 1 Seats and Restraint Systems

Section 2 Features and Controls

Features and Controls

Keys

Doors and Locks

Windows

Starting and Operating Your Vehicle

Mirrors

Storage Areas

Section 3 Instrument Panel

Instrument Panel

Instrument Panel Overview

Climate Controls

Warning Lights, Gages, and Indicators

Audio System(S)

Section 4 Driving Your Vehicle

Driving Your Vehicle

Your Driving, the Road, and Your Vehicle

Towing

Section 5 Service and Appearance Care

Service and Appearance Care

Service

Fuel

Checking Things under the Hood

Rear Axle

Four-Wheel Drive

Front Axle

Noise Control System

Windshield Wiper Blade Replacement

Bulb Replacement

Other Service Items

Tires

Appearance Care

Vehicle Identiﬁcation

Electrical System

Capacities and Speciﬁcations

Normal Maintenance Replacement Parts

Quick Links

Chapters

Related Manuals for GMC TopKick 2007

Summary of Contents for GMC TopKick 2007