GMC 2003 C4C042 Owner's Manual
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GMC 2003 C4C042 Owner's Manual

GMC 2003 C4C042 Owner's Manual

2003 c series
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  • Page 2 This section tells you when to perform vehicle maintenance and what fluids and lubricants to use. Customer Assistance Information This section tells you how to contact GMC for assistance and how to get service and owner publications. It also gives you information on “Reporting Safety Defects” on page 8...
  • Page 3 We support voluntary technician certification. GENERAL MOTORS, GM, the GM Emblem, GMC and the GMC Truck Emblem are registered trademarks of General Motors Corporation. This manual includes the latest information at the time it was printed. We reserve the right to make changes after that time without further notice.

  • Page 4: How To Use This Manual

    How to Use this Manual CAUTION: Many people read their owner’s manual from beginning to end when they first receive their new vehicle. If you do this, it will help you learn about the These mean there is something that could hurt features and controls for your vehicle.

  • Page 5: Vehicle Damage Warnings

    Vehicle Damage Warnings Vehicle Symbols Also, in this book you will find these notices: Your vehicle may be equipped with components and labels that use symbols instead of text. Symbols, used on your vehicle, are shown along with the text describing the operation or information relating to a NOTICE: specific component, control, message, gage or indicator.
  • Page 6 Here are some examples of symbols you may find on your vehicle:...

  • Page 7: Model Reference

    Model Reference C4E042 C5E042 This manual contains information which covers C6E042 conventional cab models as shown. Most models C7E042 are unfinished from the factory. C8E042 C4C042 C6C042 C5C042 C7C042 C4V042 C8C042 C5V042 C6V042 C4U042 C7V042 C8E064 C5U042 C8V042 C8C064 C8V064 Since C-Series models delivered from the factory are finished in a variety of ways by a number of companies, you’ll probably find other manuals in your finished...

  • Page 8: Section 1 Seats And Restraint Systems

    Section 1 Seats and Restraint Systems Here you’ll find information about the seats in your vehicle and how to use your safety belts properly. You can also learn about some things you should not do with air bags and safety belts. Seats and Seat Controls Center Passenger Position Safety Belts: They’re for Everyone...
  • Page 9 Seats and Seat Controls Bucket Seats (If Equipped) This section tells you about the seats in your vehicle and how to adjust them. It also tells you about reclining front seatbacks. CAUTION: You can lose control of the vehicle if you try to adjust the seat while the vehicle is moving.
  • Page 10 Split Bench Seat (If Equipped) Height Adjustment If your vehicle has a split bench seat, your seat is fixed The suspension seat height and is not able to be adjusted. adjustment lever is located on the front inboard side of Air Suspension Seats (If Equipped) the seat.
  • Page 11 The seat cushion height Lumbar Adjustments adjustment handle is The lumbar adjustment located underneath the knob is located on the seat, in the front. seatback, on the inboard side of the driver’s seat and on the outboard side of the passenger’s seat.
  • Page 12 Seatback Adjustment Fore Aft Adjustment The seatback adjustment The fore aft adjustment knob is located on the lever is located underneath inboard side of the driver’s the seat, in the front. and passenger’s seat cushions. To tilt the seatback rearward, turn the knob To slide the seat forward or rearward, move the counterclockwise.
  • Page 13 Chugger Snubber Lock Out Feature (If Equipped) Reclining Front Seatbacks (If Equipped) If your vehicle has this feature, the handle is located on the outboard sides of the driver’s and passenger’s seats. If your vehicle is equipped with bucket seats, you can recline the seatbacks.
  • Page 14 CAUTION: Sitting in a reclined position when your vehicle is in motion can be dangerous. Even if you buckle up, your safety belts can’t do their job when you’re reclined like this. The shoulder belt can’t do its job because it won’t be against your body.
  • Page 15 Rear Seats (Crew Cab Safety Belts: They’re for Everyone This part of the manual tells you how to use safety belts Folding the Rear Seat properly. It also tells you some things you should not do The Crew Cab’s rear bench seat can be folded down to with safety belts.
  • Page 16 Your vehicle has a light that comes on as a reminder CAUTION: to buckle up. See “Safety Belt Reminder Light” in It is extremely dangerous to ride in a cargo area, the Index. inside or outside of a vehicle. In a collision, people riding in these areas are more likely to be seriously injured or killed.
  • Page 17 Why Safety Belts Work Aren’t safety belts for kids? Yes. And they’re for adult truckers, and anyone else who rides in your vehicle. If the vehicle hits something, it stops right then. But nothing stops the people. They keep moving. Here’s why: when your vehicle goes, say, 30 mph (50 km/h), so do you and your passengers.
  • Page 18 Then something will stop them. It could be the Or it could be the instrument panel. windshield. Now, what if you and your passengers were to give that big vehicle a chance to deal with the force of the impact, instead of you? 1-11...
  • Page 19 Here Are Questions Many People Ask About Safety Belts and the Answers Won’t I be trapped in the vehicle after an accident if I’m wearing a safety belt? You could be whether you’re wearing a safety belt or not. But you can unbuckle a safety belt, even if you’re upside down.

  • Page 20: How To Wear Safety Belts Properly

    If I’m a good driver, and I never drive far from How to Wear Safety Belts Properly home, why should I wear safety belts? Adults You may be an excellent driver, but if you’re in an This part is only for people of adult size. accident even one that isn’t your fault and your passengers can be hurt.
  • Page 21 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 isn’t long enough, see “Safety Belt Extender” at the end of this section. 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 22 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’d be less likely to slide under the lap belt. If you slid under it, the belt would apply force at your abdomen.
  • Page 23 What’s 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 won’t give nearly as much protection this way.
  • Page 24 What’s 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.
  • Page 25 What’s 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 26 What’s 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 aren’t as strong as shoulder bones.
  • Page 27 What’s wrong with this? CAUTION: You can be seriously injured by a twisted belt. In a crash, you wouldn’t 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 28: Safety Belt Use During Pregnancy

    Safety Belt Use During Pregnancy Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they don’t wear safety belts. To unlatch the belt, just push the button on the buckle. The belt should go back out of the way.

  • Page 29: Right Front Passenger Position

    The best way to protect the fetus is to protect the Air Bag System mother. When a safety belt is worn properly, it’s more This part explains the air bag system. likely that the fetus won’t be hurt in a crash. For pregnant women, as for anyone, the key to making safety belts effective is wearing them properly.
  • Page 30 If it says AIR BAG on the middle part of the steering wheel but it doesn’t say AIR BAG on the instrument panel in front of the right front passenger’s seat, your vehicle has an air bag for the driver only. If it says AIR BAG on the middle part of the steering wheel, but there is no right front passenger seat, your vehicle has an air bag for the driver only.
  • Page 31 Here are the most important things to know about the air bag system: CAUTION: Air bags inflate with great force, faster than the CAUTION: blink of an eye. If you’re too close to an inflating air bag, as you would be if you were leaning You can be severely injured or killed in a crash if forward, it could seriously injure you.
  • Page 32 If your vehicle has an air bag for the right front There is an air bag readiness passenger, please read this: light on the instrument panel, which shows the air bag symbol. CAUTION: Anyone who is up against, or very close to, any air bag when it inflates can be seriously injured The system checks the air bag electrical system for or killed.
  • Page 33 How the Air Bag System Works The right front passenger’s air bag is in the instrument panel on the passenger’s side. Where are the air bags? The driver’s air bag is in the middle of the steering wheel. 1-26...
  • Page 34 When should an air bag inflate? CAUTION: An air bag is designed to inflate in a moderate to severe frontal or near frontal crash. The air bag will inflate only if the impact speed is above the system’s designed If something is between an occupant and an air “threshold level.”...
  • Page 35 How does an air bag restrain? What will you see after an air bag inflates? In moderate to severe frontal or near frontal collisions, After an air bag inflates, it quickly deflates, so quickly even belted occupants can contact the steering wheel or that some people may not even realize the air bag the instrument panel.
  • Page 36 In many crashes severe enough to inflate an air bag, Let only qualified technicians work on your air bag windshields are broken by vehicle deformation. system. Improper service can mean that your air Additional windshield breakage may also occur from the bag system won’t work properly.
  • Page 37 Air Bag Off Switch (Models with Right Front Passenger Air Bag) If your vehicle has a right front passenger air bag, it has a switch on the instrument panel that you can use to turn off the right front passenger’s air bag. Canada United States 1-30...
  • Page 38 This switch should only be turned to AIR BAG OFF if Medical Condition. A passenger has a medical the person in the right front passenger’s position is a condition which, according to his or her physician: member of a passenger risk group identified by the causes the passenger air bag to pose a special risk national government as follows: for the passenger;...
  • Page 39 United States Canada To turn off the right front passenger’s air bag, insert your ignition key into the switch, push in, and move the switch to the off position. 1-32...
  • Page 40 The AIR BAG OFF light will come on to let you know that the right front passenger’s air bag is off. The right front passenger’s air bag will remain off until you turn it back on again, and the AIR BAG OFF light will stay on to remind you that the air bag is off.

  • Page 41: Servicing Your Air Bag-Equipped Vehicle

    Servicing Your Air Bag-Equipped Vehicle Air bags affect how your vehicle should be serviced. There are parts of the air bag system in several places around your vehicle. You don’t want the system to inflate while someone is working on your vehicle. Your dealer and the service manual have information about servicing your vehicle and the air bag system.
  • Page 42 Adding Equipment to Your Air Is there anything I might add to the front of the vehicle that could keep the air bags from Bag-Equipped Vehicle working properly? If I add a push bumper or a bicycle rack to the Yes.

  • Page 43: 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 model, someone can also sit in the center rear position. When you sit in a center seating position, you have a lap safety belt, which has no retractor.

  • Page 44: Rear Seat Passengers

    Rear Seat Passengers It’s 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 aren’t safety belted can be thrown out of the vehicle in a crash.
  • Page 45 Shoulder Belt 2. Push the latch plate into the buckle until it clicks. Pull up on the latch plate to make sure it is secure. The positions next to the windows have lap shoulder belts. Here’s how to wear one properly. When the shoulder belt is pulled out all the way, it will lock.
  • Page 46 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’d be less likely to slide under the lap belt. If you slid under it, the belt would apply force at your abdomen.
  • Page 47 To move it down, push in at the top of the arrows and move the height adjuster to the desired position. You can move the adjuster up just by pushing up on the shoulder belt guide. After you move the adjuster to where you want it, try to move it down without pushing in to make sure it has locked into position.

  • Page 48: Infants And Young Children

    Children Everyone in a vehicle needs protection! This includes infants and all other children. Neither the distance traveled nor the age and size of the traveler changes the need, for everyone, to use safety restraints. In fact, the law in every state in the United States and in every Canadian province says children up to some age must be restrained while in a vehicle.
  • Page 49 CAUTION: People should never hold a baby in their arms while riding in a vehicle. A baby doesn’t 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 lb.
  • Page 50 CAUTION: Children who are up against, or very close to, any air bag when it inflates can be seriously injured or killed. Air bags plus lap shoulder belts offer outstanding protection for adults and older children, but not for young children and infants. Neither the vehicle’s safety belt system nor its air bag system is designed for them.
  • Page 51 What are the different types of add child restraints? CAUTION: on child restraints, which are purchased by the vehicle’s owner, are available in four basic types. Newborn infants need complete support, Selection of a particular restraint should take into including support for the head and neck. This is necessary because a newborn infant’s neck is consideration not only the child’s weight, height weak and its head weighs so much compared with...
  • Page 52 Restraint Systems for Children CAUTION: The body structure of a young child is quite unlike that of an adult or older child, for whom the safety belts are designed. A young child’s hip bones are still so small that the vehicle’s regular safety belt may not remain low on the hip bones, as it should.
  • Page 53 A rear facing infant seat (B) provides restraint with the A forward facing child seat (C E) provides restraint for seating surface against the back of the infant. The the child’s body with the harness and also sometimes harness system holds the infant in place and, in a crash, with surfaces such as T shaped or shelf like shields.
  • Page 54 How do child restraints work? 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 child restraint system is a portable one, which is purchased by the vehicle’s owner.
  • Page 55 When choosing a child restraint, be sure the child restraint is designed to be used in a vehicle. If it is, it CAUTION: will have a label saying that it meets federal motor vehicle safety standards. A child restraint cannot be secured properly in Then follow the instructions for the restraint.
  • Page 56 If your vehicle has air bags and you want to secure a rear facing child restraint in the right front passenger’s CAUTION: seat, turn off the passenger’s air bag. See “Air Bag Off Switch” and “Securing a Child Restraint in the Right A child in a rear facing child restraint can be Front Seat Position”...

  • Page 57: Top Strap

    If your vehicle has an air suspension seat in the right Top Strap front passenger’s position, do not secure a child restraint Some child restraints have a top strap, or “top tether.” there. Here’s why: It can help restrain the child restraint during a collision. For it to work, a top strap must be properly anchored to the vehicle.
  • Page 58 Anchor the top strap to one of the following anchor points. Be sure to use an anchor point located on the same side of the vehicle as the seating position where the child restraint will be placed. CAUTION: Each top tether bracket is designed to anchor only one child restraint.
  • Page 59 Rear Seat Top Strap Anchors (Crew Cab Models) CAUTION: Each top tether bracket is designed to anchor only one child restraint. Attaching more than one child restraint to a single bracket could cause the anchor to come loose or even break during a crash.
  • Page 60 Securing a Child Restraint in a Rear You’ll be using the lap shoulder belt. See the earlier part about the top strap if the child restraint has one. Be sure Outside Seat Position (Crew Cab Models) to follow the instructions that came with the child restraint.
  • Page 61 3. Buckle the belt. Make sure the release button is 4. Pull the rest of the shoulder belt all the way out of positioned so you would be able to unbuckle the the retractor to set the lock. safety belt quickly if you ever had to. 1-54...
  • Page 62 5. To tighten the belt, feed the shoulder belt back into the retractor while you push down on the child restraint. If you’re 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.
  • Page 63 Securing a Child Restraint in the Center CAUTION: Rear Seat Position (Crew Cab Models) and Securing a Child Restraint in the Center Front Position (Bench Seat Models without A child in a child restraint in the center front seat Air Bags) can be badly injured or killed by the right front passenger air bag if it inflates.
  • Page 64 1. Make the belt as long as possible by tilting the latch 4. Buckle the belt. Make sure the release button is plate and pulling it along the belt. positioned so you would be able to unbuckle the safety belt quickly if you ever had to. 2.
  • Page 65 5. To tighten the belt, pull its free end while you push Securing a Child Restraint in the Right down on the child restraint. If you’re using a Front Seat Position 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.
  • Page 66 United States Canada 1-59...
  • Page 67 CAUTION: CAUTION: A child in a rear facing child restraint can be If the air bag readiness light ever comes on when seriously injured or killed if the right front you have turned off the air bag, it means that passenger’s air bag inflates.
  • Page 68 You’ll be using the lap shoulder belt. See the earlier part about the top strap if the child restraint has one. Be sure to follow the instructions that came with the child restraint. Secure the child in the child restraint when and as the instructions say.
  • Page 69 5. Pull the rest of the shoulder belt all the way out of 6. To tighten the belt, feed the shoulder belt back into the the retractor to set the lock. retractor while you push down on the child restraint. If you’re using a forward facing child restraint, you may find it helpful to use your knee to push down on the...
  • Page 70 To remove the child restraint, just unbuckle the vehicle’s safety belt and let it go back all the way. The safety belt CAUTION: will move freely again and be ready to work for an adult or larger child passenger. If the right front passenger’s air bag is turned off If you were using a rear facing child restraint in a for a person who isn’t in a risk group identified...

  • Page 71: Older Children

    Older Children What is the proper way to wear safety belts? If possible, an older child should wear a 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 72 CAUTION: Never do this. Here two children are wearing the same belt. The belt can’t properly spread the impact forces. In a crash, the two children can be crushed together and seriously injured. A belt must be used by only one person at a time. What if a child is wearing a lap shoulder belt, but the child is so small that the shoulder belt is...
  • Page 73 CAUTION: Never do this. Here a child is sitting in a seat that has a 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. The belt’s force would then be applied right on the child’s abdomen.

  • Page 74: Safety Belt Extender

    Safety Belt Extender Checking Your Restraint Systems If the vehicle’s safety belt will fasten around you, you Now and then, make sure the safety belt reminder light should use it. and all your belts, buckles, latch plates, retractors and anchorages are working properly. Look for any other But if a safety belt isn’t long enough to fasten, your loose or damaged safety belt system parts.
  • Page 75 Replacing Restraint System Parts If you’ve 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. CAUTION: If belts are cut or damaged, replace them.

  • Page 76: Section 2 Features And Controls

    Section 2 Features and Controls Here you can learn about the many standard and optional features on your vehicle, and information on starting, shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is working properly and what to do if you have a problem.
  • Page 77 Windows CAUTION: Leaving children in a vehicle with the windows closed is dangerous. A child can be overcome by the extreme heat and can suffer permanent injuries or even death from heat stroke. Never leave a child alone in a vehicle, especially with the windows closed in warm or hot weather.

  • Page 78: Manual Windows

    Manual Windows Turn the hand crank on each door to raise or lower the window. Power Windows (If Equipped) If your vehicle is a Crew Cab model with power windows, there will be switches located on the rear doors as well. However, the driver’s door will have four switches located on it that can control all windows.
  • Page 79 Express Down Feature Sliding Rear Window (If Equipped) The driver’s window also has an express down feature To open the sliding rear window, unlock the latch that allows the window to be lowered without holding lever by pulling the lever toward the driver’s side of down the switch.
  • Page 80 Keys CAUTION: Leaving children in a vehicle with the ignition key is dangerous for many reasons. A child or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. Don’t leave the keys in a vehicle with children.
  • Page 81 Your vehicle has one NOTICE: double sided key for the ignition and all door locks. Your vehicle has a number of new features that can help prevent theft. But you can have a lot of trouble getting into your vehicle if you ever lock your keys inside.

  • Page 82: Door Locks

    Door Locks There are several ways to lock and unlock your vehicle. If your vehicle is equipped with keyless entry, you can use your transmitter to lock or unlock your vehicle. CAUTION: See “Keyless Entry System” later in this section for more information.

  • Page 83: Power Door Locks - If Equipped

    Power Door Locks (If Equipped) Keyless Entry System (If Equipped) If your vehicle has this feature, you can lock and unlock If your vehicle has power your doors from about 3 feet (1 m) up to 30 feet (9 m) door locks, press the bottom away using the remote keyless entry transmitter supplied side of the power door lock...

  • Page 84: Operation

    Changes or modifications to this system by other than an Operation authorized service facility could void authorization to To unlock the driver’s door, press the UNLOCK use this equipment. button one time. If you press the button again within At times you may notice a decrease in range. This is five seconds, all of the doors will unlock.

  • Page 85: Matching Transmitter(S) To Your Vehicle

    Matching Transmitter(s) to Your Vehicle Battery Replacement Each remote keyless entry transmitter is coded to Under normal use, the battery in your remote keyless prevent another transmitter from unlocking your vehicle. entry transmitter should last about two years. If a transmitter is lost or stolen, a replacement can be You can tell the battery is weak if the transmitter won’t purchased through your dealer.
  • Page 86 2. Remove and replace the battery, positive (+) side Resynchronization down. Use one Panasonic type CR2032 battery: 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.
  • Page 87 Switchbanks This switchbank is located in the center of the instrument panel. Instrument Panel Switchbank The switchbank may include marker lamp defeat, high idle, traction control, heated mirrors, power take off, rear air suspension, two speed axle (electric), exhaust brake, two speed axle (air), differential lock, rear axle differential lock and inter axle differential lock.
  • Page 88 Theft Key in the Ignition If you leave your vehicle with the keys inside, it’s an Vehicle theft is big business, especially in some cities, easy target for joy riders or professional thieves and even commercial vehicles are no exception. don’t do it.
  • Page 89 New Vehicle “Break In” NOTICE: (Continued) Avoid making hard stops for the first NOTICE: 200 miles (322 km) or so. During this time your new brake linings aren’t yet broken Your vehicle doesn’t need an elaborate in. Hard stops with new linings can mean “break in.”...

  • Page 90: Ignition Positions

    Ignition Positions A (ACCESSORY): This position allows you to use things like the radio, power windows and the With your key in the ignition switch, you can turn it to windshield wipers when the engine is off. To get into five different positions.
  • Page 91 Engine Starter Over-Crank Protection Manual Transmission (If Equipped) Set the parking brake, shift to neutral and hold the clutch pedal to the floor while starting the engine. Your vehicle may have an engine starter over crank protection system. If the starter motor overheats and Starter Motor Operation shuts off due to over cranking, the motor must cool...

  • Page 92: Starting Your Engine

    Starting Your Engine NOTICE: 1. Without pushing the accelerator pedal, turn your ignition key to START. When the engine starts, let Your engine is designed to work with the go of the key. The idle speed will go down as your electronics in your vehicle.
  • Page 93 Gasoline Engine Warm-Up Stopping the Gasoline Engine When you’ve started your engine, let it run for 20 or Let your engine idle for a few seconds before turning it 30 seconds to warm up before you put a load on off after you have finished driving your vehicle.

  • Page 94: Starting The Diesel Engine

    Starting the Diesel Engine Restarting the Diesel Engine While Moving (Automatic Transmission) If you have a Caterpillar diesel engine, also refer to your Caterpillar Diesel Engine Operation & Maintenance If you have to restart the engine while the vehicle is Manual for starting procedure.
  • Page 95 Cold Weather Starting Diesel Engine Warm-Up (Caterpillar Diesel) Several factors affect how quickly your diesel engine warms up. These can include outside temperature, Because the diesel engine uses compression ignition, it engine load, idle time and your vehicle’s option content. is harder to start in cold weather than a gasoline engine.
  • Page 96 Engine Alarm and Automatic Shutdown High Idle System (Caterpillar Diesel (If Equipped) and Gasoline Engines) Your check gages light will come on if the system senses Your vehicle has both automatic and manual high idle high engine temperature or low engine oil pressure. If high capabilities.
  • Page 97 Manual High Idle System (If Equipped) The manual high idle feature is activated by pressing the switch on the instrument panel. When the switch is If your vehicle has this pressed again, or any of the previous conditions are not feature, the manual high met, manual high idle will be deactivated.
  • Page 98 Exhaust Restrictor (Diesel Engines) On vehicles equipped with a diesel engine exhaust brake, the exhaust brake switch must be on. The (If Equipped) indicator in the exhaust brake switch will be lit when the If your vehicle is equipped with this feature, there is an exhaust restrictor is active.
  • Page 99 Starting Your DURAMAX Manual Transmission Diesel Engine Move your shift lever to neutral and hold the clutch pedal to the floor while starting the engine. Your vehicle Your diesel engine starts differently than a won’t start if the clutch pedal is not all the way gasoline engine.
  • Page 100 NOTICE: NOTICE: If the wait to start light stays on, it means that If you’re not in an idling vehicle and the engine your vehicle could have one of several problems, overheats, you wouldn’t be there to see the so you should have it serviced right away. overheated engine condition.
  • Page 101 If Your Diesel Engine Won’t Start If your batteries don’t have enough charge to start your engine, see “Battery” in the owner’s manual. If you’ve run out of fuel, look at “Running Out of Fuel.” Be sure you have the right oil for your engine, and that See “Diesel Fuel Requirements and Fuel System”...
  • Page 102 Engine Checks Before Operating If the engine coolant temperature gage needle goes into the hot area on the gage, stop the engine and When you’ve started your engine, let it run for 20 to find the cause of the overheating. 30 seconds before you put a load on the engine.
  • Page 103 The voltmeter charge indicator gage tells you the Engine Coolant Heater (If Equipped) condition of your battery’s charge. The gage should be in the center area during engine operation. The If your vehicle is equipped red area on the left indicates an undercharge with this feature, the plug condition;...

  • Page 104: To Use The Engine Coolant Heater

    To Use the Engine Coolant Heater 4. Before starting the engine, be sure to unplug the cord. 1. Turn off the engine. How long should you keep the coolant heater plugged 2. Find the plug in receptacle (either behind the front in? The answer depends on the outside temperature.

  • Page 105: Diesel Engine Exhaust Brake

    Diesel Engine Exhaust Brake Push the bottom of the switch to turn the exhaust brake on. When you push the top of the switch, the exhaust (If Equipped) brake will turn off. The exhaust brake is available on vehicles equipped There is an indicator light on the instrument panel with a diesel engine.
  • Page 106 The accelerator and clutch pedals must be released in Speed Rear Axle Electric Shift order for the exhaust brake to engage. The exhaust brake Control (If Equipped) will not function when the cruise control feature is active, and will automatically shut off when the If your vehicle is equipped with this feature, you’ll find anti lock brake system is active.
  • Page 107 The two speed axle should be in low when you park the Automatic Transmission vehicle. You’ll need to engage the transmission, even The rear axle shift control move the vehicle a little, to be sure the axle is in the low switch for an automatic range.

  • Page 108: Air Suspension (If Equipped)

    On the highway, with the axle in low range and the The two speed axle should be in low when you park transmission in top gear, you may shift the axle to high the vehicle. range by raising the switch and releasing the accelerator You’ll need to engage the transmission, even moving the momentarily.

  • Page 109: Automatic Transmission Operation

    Rear Air Suspension Dump Control Automatic Transmission Operation If your vehicle is equipped with the Hendrickson HAS We build vehicles with five and six speed automatic Series single axle air suspension, you have this control. transmissions. This part of the manual covers the basics The air suspension dump control allows the operator to of these.
  • Page 110 CAUTION: CAUTION: It is dangerous to get out of your vehicle if the Shifting into a drive gear while your engine is shift lever is not fully in PARK (P) with the “racing” (running at high speed) is dangerous. parking brake firmly set. Your vehicle can roll. Unless your foot is firmly on the brake pedal, your vehicle could move very rapidly.

  • Page 111: Manual Transmission Operation

    Overdrive Defeat (If Equipped) Manual Transmission Operation If your vehicle has this feature, you can select not to Using the Clutch shift up to fifth gear. This is useful when towing or When you’re starting to move the vehicle, it’s important under a heavy load.
  • Page 112 Eaton Fuller Five and Six-Speed ZF Six-Speed Transmission Transmissions and TTC Spicer Here’s how to operate Seven-Speed Transmissions your transmission. These transmissions have gears that automatically synchronize when you shift up or down (except FIRST (1) gear on the five speed and seven speed transmission which is unsynchronized).
  • Page 113 During the first 500 miles (805 km) of vehicle use, start THIRD (3): Press the clutch pedal and upshift into the vehicle moving in FIRST (1) gear. This allows the THIRD (3). Then, slowly let up on the clutch pedal as clutch components to wear in properly.
  • Page 114 Eaton Fuller Nine and Ten-Speed Clutch Brake (Vehicles with Non-Synchronized Manual Transmissions Non-Synchronized Transmission) (If Equipped) A clutch brake is used to stop transmission input shaft rotation so that FIRST (1) or REVERSE (R) gear If your vehicle has one of these unsynchronized selection can be initiated when the vehicle is at a transmissions, it’s naturally somewhat complicated.

  • Page 115: Two-Speed Rear Axle

    Parking Hydraulic Brakes (If Equipped) If your vehicle has hydraulic brakes, it has either a parking brake foot pedal or hand lever. If you have the CAUTION: parking brake foot pedal, it is located below the instrument panel to the left of the steering column. If you don’t park your vehicle properly, it can roll.
  • Page 116 To set the hand lever parking brake, pull up on the Propshaft Park Brake Burnish Procedure handle with your right hand, until it stops. It is recommended that the propshaft mounted parking If the ignition is on when the parking brake is set, the brake be burnished as part of the new vehicle break brake system warning light will come on.
  • Page 117 Air Brake (If Equipped) If your vehicle has air brakes, you will have this parking brake. It is located above the radio in the CAUTION: instrument panel. When the yellow SYSTEM PARK and the red TRAILER AIR SUPPLY knobs are both pushed in, your rig will be free to move.
  • Page 118 Vehicles built for use as tractors or towing vehicles have To charge a trailer’s air brake system do the following: two air brake controls. They look like this: 1. Move your tractor into the proper position. 2. Apply the parking brake by pulling the yellow parking brake knob out.
  • Page 119 If the air pressure drops to 35 to 45 psi (241 to 310 kPa), the yellow park brake knob will automatically pop out CAUTION: and apply the spring brakes on the truck or tractor. If you ever have a complete loss of air so that your air If you apply any one of the air brake parking brakes automatically apply, there is a way that the tow controls while the vehicle is moving, your rig will...

  • Page 120: Parking Over Things That Burn

    Parking Over Things That Burn Engine Exhaust CAUTION: Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you can’t see or smell. It can cause unconsciousness and death. You might have exhaust coming in if: Your exhaust system sounds strange or different.
  • Page 121 Running Your Engine While You’re CAUTION: Parked (Automatic Transmission) It’s better not to park with the engine running. But if you It can be dangerous to get out of your vehicle if ever have to, here are some things to know. the shift lever is not fully in PARK (P) with the parking brake firmly set.
  • Page 122 Horn CAUTION: Sound the horn by pushing the center of the steering wheel. If you have the optional air horn, it is controlled by a cord that you’ll find up above and to the left of It can be dangerous to get out of your vehicle the driver.

  • Page 123: Turn Signal/Multifunction Lever

    Tilt Wheel (If Equipped) Turn Signal/Multifunction Lever A tilt wheel allows you to adjust the steering wheel before you drive. You can raise it to the highest level to give your legs more room when you exit and enter the vehicle. The lever that allows you to tilt the steering wheel is located on the left side of the steering column.
  • Page 124 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 signal flasher and The turn signal has two upward (for right) and two circuit breaker. See “Fuses and Circuit Breakers” in downward (for left) positions.

  • Page 125: Windshield Wipers

    Windshield Wipers (Low Speed): For steady wiping at low speed, turn the band toward you to the first solid band below You control the windshield the delay settings. wipers by turning the band (High Speed): For high speed wiping, turn the with the wiper symbol on it.

  • Page 126: Windshield Washer

    Windshield Washer Cruise Control (Option) (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 at multifunction lever. To spray washer fluid on the the end of your windshield, press the paddle.
  • Page 127 With cruise control, you can maintain a speed of about Setting Cruise Control 30 mph (48 km/h) or more without keeping your foot on the accelerator. Cruise control does not work at speeds CAUTION: below about 30 mph (48 km/h). If you have an automatic transmission and you apply your brakes, the cruise control will shut off.
  • Page 128 Resuming a Set Speed Increasing Speed While Using Cruise Control Suppose you set your cruise control at a desired speed There are two ways to go to a higher speed: and then you apply the brake. This, of course, shuts off Use the accelerator pedal to get to the higher speed.
  • Page 129 Reducing Speed While Using Cruise Control Ending Cruise Control Press in the button at the end of the lever until you reach There are four different ways to turn off the cruise the lower speed you want, then release it. control: To slow down in very small amounts, tap the Step lightly on the brake pedal (manual and...
  • Page 130 Inter Axle Differential Lock Control Let up on the accelerator before you turn on your inter axle differential lock. When you turn on this (If Equipped) control, the diff lock indicator on the center of the instrument panel will light. If your vehicle has this feature, the switch is located in the center of the...
  • Page 131 Rear Axle Differential Lock Control If you’re approaching a slippery surface where it looks like one or even both wheels may start to slip, you can (If Equipped) press the bottom of this switch. It locks your rear differential so that power is transmitted equally to both If your vehicle has a rear wheels.

  • Page 132: Trailer Brake Hand Control Valve

    Trailer Brake Hand Control Valve Exterior Lamps (Option) If your vehicle has this feature, it is located near the center console on the floor. This feature lets you apply the trailer brakes without applying the tractor brakes. You can apply the trailer brakes a little, or apply them all the way, if needed.

  • Page 133: Daytime Running Lamps

    The exterior lamp control has four positions: Headlamps On Reminder (If Equipped) OFF: Turning the control to this position turns off all If you have this system, a tone will sound when your lamps except the Daytime Running Lamps (DRL). headlamps and/or parking lamps are turned on and your ignition is in LOCK or ACCESSORY.
  • Page 134 When it begins to get dark, Marker Lamp Defeat Switch your DRL indicator light is If your vehicle has this feature, you can manually blink a reminder to turn the the marker and clearance lamps. headlamps on. The other lamps that come on with The marker lamp your headlamps, will also defeat switch is located...

  • Page 135: Interior Lamps

    Interior Lamps Instrument Panel Brightness Control 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 136: Illuminated Entry

    Illuminated Entry Mirrors The delayed illumination feature will allow you to enter Inside Rearview Mirror (If Equipped) or exit your vehicle with the lights on for about 20 Pull the tab under the mirror toward you to reduce glare seconds, after the door is closed or the ignition is cycled. from headlamps behind you after dark.
  • Page 137 Power Outside Rearview Mirrors (If Equipped) Heated Outside Rearview Mirrors (If Equipped) If you have power outside rearview mirrors, they can be If your vehicle has this feature, your outside rearview adjusted from inside the vehicle. mirrors can be defrosted. The control for this The switch is for this feature is located on...

  • Page 138: Storage Compartments

    Convex Outside Mirrors Storage Compartments Your vehicle has convex mirrors on the lower quarter of Your vehicle includes a number of storage both the driver’s and passenger’s side rearview mirrors. compartments for storage of often used items. A convex mirror’s surface is curved so you can see more Some vehicles have storage areas in the instrument from the driver’s seat.
  • Page 139 Center Console Storage (If Equipped) To expose the center console storage compartment, pull the strap to release the seatback. Then fold the Your vehicle may have a center console compartment seatback forward. between the bucket or suspension seats. To open the center console storage compartment, The back of your center bench seat may also fold Press the release button and lift the lid rearward.

  • Page 140: Sun Visors

    Ashtrays and Cigarette Lighter Sun Visors Your vehicle has an ashtray and a cigarette lighter To block out glare, you can swing down the visors. You located in the center floor console. To open the can also swing them out to block glare from the side. removeable ashtray, flip open the top.
  • Page 141 Certain electrical accessories may not be compatible NOTICE: with the accessory power outlet and could result in blown vehicle or adapter fuses. If you experience a problem, see your dealer for additional information on Power outlets are designed for accessory plugs accessory power outlets.

  • Page 142: Air Connections

    The eight wire harness contains the following Air Connections trailer circuits: If you are not connecting the trailer air line connections Yellow: Left Stop/Turn Signal to another piece of equipment, be sure to replace their protective caps. Dark Green: Right Stop/Turn Signal Electrical Connections Brown: Taillamps White: Ground...
  • Page 143 The Instrument Panel Your Information System 2-68...
  • Page 144 The main components of your instrument panel are the following: A. Vents I. Auxiliary Switches (If Equipped) B. Instrument Panel Cluster J. Audio System or Storage Area C. Column Shift Lever (If Equipped) K. Auxiliary Warning Lights D. Air Brake Control(s) (If Equipped) L.

  • Page 145: 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’ll know how fast your going, about how much fuel is left and many other things you’ll need to drive safely and economically. United States, Diesel Engine shown, Canada and Gasoline Engine similar 2-70...

  • Page 146: Speedometer And Odometer

    Speedometer and Odometer Trip Odometer The trip odometer can tell you how far your vehicle has Your speedometer lets you see your speed in both miles been driven since you last set the trip odometer to zero. per hour (mph) and kilometers per hour (km/h). While the engine is running, press the reset button, Your odometer shows how far your vehicle has been located to the right of the trip odometer, to toggle...
  • Page 147 Engine Speed Limiting Engine Road Speed Governor All engines have electronic engine speed limiting. This system controls maximum vehicle speed The engine limited speeds range between 2,900 and automatically and reduces engine power until vehicle 4,400 rpm depending on engine option content. speed gets down to maximum governed speed.

  • Page 148: Warning Lights, Gages And Indicators

    Tachometer Warning Lights, Gages and Indicators This part describes the warning lights and gages that may be on your vehicle. The pictures will help you locate them. Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement.

  • Page 149: Safety Belt Reminder Light

    Gages can indicate when there may be or is a problem Safety Belt Reminder Light with one of your vehicle’s functions. Often gages and When the key is turned to RUN or START, a light will warning lights work together to let you know when come on for several seconds to remind people to fasten there’s a problem with your vehicle.

  • Page 150: Airbag Readiness Light

    Air Bag Readiness Light CAUTION: There is an air bag readiness light on the instrument panel, which shows the airbag symbol. The system checks the air bag’s electrical system for malfunctions. If the air bag readiness light stays on after you The light tells you if there is an electrical problem.
  • Page 151 Air Bag Off Light (If Equipped) When you turn the right front passenger’s air bag off, this light will come on and stay on to remind you that the air bag has been turned off. This light will go off when you turn the air bag back on again.
  • Page 152 CAUTION: CAUTION: If the right front passenger’s air bag is turned off If the air bag readiness light ever comes on when for a person who isn’t in a risk group identified you have turned off the air bag, it means that by the national government, that person won’t something may be wrong with the air bag system.
  • Page 153 Charging System Indicator Light Voltmeter The charging system When your engine is indicator light may be running, the voltmeter located in the instrument gage, at the right side of panel cluster, or with the the instrument panel cluster, auxiliary warning lights shows the charging in the center of the system voltage.

  • Page 154: Service Transmission Warning Light

    Service Transmission Warning Light NOTICE: (If Equipped) If your vehicle has an Allison automatic transmission, If the service transmission warning light comes certain transmission malfunctions will turn this light on. on while you are driving, it is a warning that This light is located with making a transmission “range”...

  • Page 155: Brake System Warning Light

    Range Inhibited Warning Indicator Brake System Warning Light (If Equipped) Your vehicle has either hydraulic or air brakes. Each system has different warning lights. If your vehicle is equipped with an Allison 1000/2000/2400 series automatic transmission, a lighted Hydraulic Brake System Warning Lights bar under the current gear selected will flash.
  • Page 156 If the amber SERVICE If one or both of these lights come on and stay on while BRAKES SOON warning you are driving, pull off the road and stop carefully. You light comes on, it means may notice that the pedal is harder to push. Or, the pedal that there is something may go closer to the floor.
  • Page 157 Air Brake System Warning Light When this warning light comes on, you will also hear a warning tone. If the warning light and tone come on Vehicles with air brake systems have one brake system while you are driving, you should drive only as far as warning light on the instrument panel.

  • Page 158: Anti-Lock Brake System Warning Light

    Parking Brake Indicator Light Anti-Lock Brake System Warning Light Your vehicle has a brake With the anti lock brake indicator light. When the system, this light will come ignition is on, this light will on when you start your come on when you set your engine and it may stay parking brake.

  • Page 159: Trailer Anti-Lock Brake System Warning Light

    Trailer Anti-Lock Brake System Engine Coolant Temperature Gage Warning Light If your vehicle is connected to an anti lock brake system equipped trailer, this light should come on briefly, as a check, when you turn on the ignition. When this light comes on and stays on, it means there is something wrong in the trailer anti lock brake system.

  • Page 160: Low Coolant Warning Light

    Low Coolant Warning Light Wait to Start Indicator (If Equipped) You have a low coolant This light in the center of warning light. If this light the instrument panel will comes on, your system is come on when the intake low on coolant and the heater is on and the ignition engine may overheat.
  • Page 161 Malfunction Indicator Lamp This light should come on when the ignition is on, but the engine is not running, as a check to show you it is (Service Engine Soon Light) working. If it does not come on at all, have it repaired. If this light comes on or flashes while you NOTICE:...

  • Page 162: 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: Don’t keep driving if the oil pressure is low. If you do, your engine can become so hot that it catches fire.

  • Page 163: Low Oil Level Light

    Change Oil Light Low Oil Level Light The change oil light should This light should come on come on briefly as a bulb as a check, when you start check when you start the your engine. If the light engine. If the light doesn’t fails to come on, have it come on, have it serviced.

  • Page 164: Engine Overspeed Warning Light

    Reduced Engine Power Warning Light Engine Overspeed Warning Light (If Equipped) If the check engine and reduced engine power lights If your vehicle has this are on, the throttle may be light, it will come on if your disabled, and a noticeable engine is operating at too reduction in the vehicle’s many revolutions per...

  • Page 165: Transmission Temperature Gage

    Engine Shutdown Warning Light Transmission Temperature Gage (If Equipped) (If Equipped) If your vehicle has the If you have an automatic engine shutdown feature, transmission, this gage is this light will come on when located above the engine shutdown is active. switchbank in the center of the instrument panel.

  • Page 166: Exhaust Brake Indicator Light

    Exhaust Brake Indicator Light Diff Lock Indicator Light (If Equipped) (If Equipped) This light located in the center of the instrument If your vehicle is equipped panel is on when the with an exhaust brake, you inter axle differential will have this light, located lock system is in use.

  • Page 167: Daytime Running Lamps (Drl) Indicator Light

    Daytime Running Lamps (DRL) Check Gages Indicator Light Indicator Light This light will come on as you’re starting the engine, This light is located on the just as a check. instrument panel cluster. It goes on whenever the Daytime Running Lamps are on.

  • Page 168: Fuel Gage

    Fuel Gage The gage doesn’t go back to empty when you turn off the ignition. Your fuel gage is located on At the gas station, the pump shuts off before the gage the right side of your reads full. instrument panel cluster. It takes a little more or less fuel to fill up than the gage indicated.

  • Page 169: Air Filter Restriction Indicator (Option)

    Air Pressure Gage (If Equipped) Air Filter Restriction Indicator (Option) If your vehicle has air This optional gage is brakes, the air pressure gage located above the is located above the switchbank in the center switchbank in the center of of the instrument panel.

  • Page 170: Section 3 Comfort Controls And Audio Systems

    Section 3 Comfort Controls and Audio Systems In this section, you’ll find out how to operate the comfort control and audio systems offered with your vehicle. Be sure to read about the particular systems supplied with your vehicle. Comfort Controls FM Radio with Cassette Tape Player Heater/Air Conditioning Controls (If Equipped)

  • Page 171: Comfort Controls

    Comfort Controls Temperature Knob The middle knob on the control panel is used to adjust This section tells you how to make your air system work the temperature of the air flowing into the passenger for you. area of your vehicle. With these systems, you can control the heating, cooling Turn the knob toward the red area for warmer air.
  • Page 172 Heater/Air Conditioning Controls Temperature Knob (If Equipped) The middle knob on the control panel is used to adjust the temperature of the air flowing into the passenger If your vehicle has air conditioning, the heater/air compartment of your vehicle. conditioning control panel will look like this. Turn the knob toward the red area for warmer air.

  • Page 173: Air Conditioning (If Equipped)

    You can use maximum air conditioning with the Level Air Conditioning): This setting divides temperature knob in the blue area when it’s really hot airflow between the floor vents and instrument panel outside and you need to cool the inside air quickly. vents.

  • Page 174: Defogging And Defrosting

    Defogging and Defrosting The rear window defogger will only work when the ignition is in RUN. Turn the mode knob to defrost to remove fog or ice from The rear window defogger will turn itself off after the windshield quickly in extremely cold conditions. several minutes.

  • Page 175: Ventilation System

    Rear Heater (If Equipped) Your vehicle’s flow through ventilation system supplies outside air to the inside of your vehicle when it is If your vehicle has a rear moving. With the side windows closed, air will flow into heater, the thumbwheel the front air inlet grilles at the base of the windshield, for this feature is located through the vehicle and out the rear air exhaust valve.

  • Page 176: Audio Systems

    Ventilation Tips Audio Systems Keep the hood and front air inlet free of ice, snow, or Your audio system has been designed to operate easily any other obstruction (such as leaves). The heater and to give years of listening pleasure. You will get the and defroster will work far better, reducing the most enjoyment out of it if you acquaint yourself with it chance of fogging the inside of your windows.
  • Page 177 AM-FM Radio Finding a Station AM FM: Press this button to switch between AM, FM1 and FM2. The display will show your selection. TUNE: Turn this knob to tune in radio stations. SEEK : Press the right or the left arrow to seek to the next or to the previous station and stay there.
  • Page 178 Setting Preset Stations Setting the Tone (Bass/Treble) The six numbered pushbuttons let you return to AUDIO: To adjust bass and treble, press and release your favorite stations. You can set up to 18 stations AUDIO repeatedly until BAS or TRE appears on the (six AM, six FM1 and six FM2) by performing the display.
  • Page 179 Adjusting the Speakers (Balance/Fade) To adjust both tone controls and both speaker controls to the middle position, end out of audio by waiting for the AUDIO: To adjust the balance between the right and display to change to the time display. Then press and the left speakers, press and release AUDIO until BAL hold AUDIO for more than two seconds until you hear a appears on the display.
  • Page 180 AM FM Radio with Cassette Tape Player Finding a Station (If Equipped) AM FM: Press this button to switch between AM, FM1 and FM2. The display will show your selection. TUNE: Turn this knob to choose radio stations. SEEK : Press the right or the left arrow to seek to the next or to the previous station and stay there.
  • Page 181 Setting Preset Stations Setting the Tone (Bass/Treble) The six numbered pushbuttons let you return to AUDIO: To adjust bass and treble, press and release your favorite stations. You can set up to 18 stations AUDIO until BAS or TRE appears on the display. Then (six AM, six FM1 and six FM2) by performing the press and hold the up or the down arrow to increase or following steps:...
  • Page 182 Adjusting the Speakers (Balance/Fade) To adjust both tone controls and both speaker controls to the middle position, end out of audio by waiting for the AUDIO: To adjust the balance between the right and display to change to the time display. Then press and the left speakers, press and release AUDIO until BAL hold AUDIO for more than two seconds until you hear a appears on the display.
  • Page 183 Playing a Cassette Tape 1 PREV (Previous): Your tape must have at least three seconds of silence between each selection for Your tape player is built to work best with tapes that are previous to work. Press this pushbutton to go to the up to 30 to 45 minutes long on each side.
  • Page 184 3 REV (Reverse): Press this pushbutton to reverse the SEEK : The right arrow is the same as the NEXT tape rapidly. FR will appear on the display. Press it again pushbutton, and the left arrow is the same as the PREV to return to playing the tape.
  • Page 185 Cassette Tape Messages CD Adapter Kits ERR (Error): If the player detects a tight or broken It is possible to use a portable CD player adapter kit tape, this message will appear on the display and the with your cassette tape player after deactivating the player will eject the tape.
  • Page 186 AM-FM Radio with Compact Disc Player Finding a Station (If Equipped) AM FM: Press this button to switch between AM, FM1 and FM2. The display will show your selection. TUNE: Turn this knob to choose radio stations. SEEK : Press the right or the left arrow to seek to the next or to the previous station and stay there.
  • Page 187 Setting Preset Stations Setting the Tone (Bass/Treble) The six numbered pushbuttons let you return to AUDIO: To adjust the bass and treble, press and release your favorite stations. You can set up to 18 stations AUDIO until BAS or TRE appears on the display. Then (six AM, six FM1 and six FM2) by performing the press and hold the up or the down arrow to increase or following steps:...
  • Page 188 Adjusting the Speakers (Balance/Fade) Radio Messages AUDIO: To adjust the balance between the right and CAL (Calibrated): Your audio system has been the left speakers, press and release AUDIO until BAL calibrated for your vehicle from the factory. If CAL appears on the display.
  • Page 189 1 PREV (Previous): Press this pushbutton to go to the 6 RPT (Repeat): Press this pushbutton once to hear previous track if the current track has been playing for a track over again. RPT will appear on the display. less than eight seconds. If pressed when the current track The current track will continue to repeat.

  • Page 190: Theft-Deterrent Feature

    Compact Disc Messages Understanding Radio Reception If the disc comes out, it could be for one of the following reasons: The range for most AM stations is greater than for FM, You’re driving on a very rough road. When the road especially at night.

  • Page 191: Tips About Your Audio System

    Tips About Your Audio System NOTICE: Hearing damage from loud noise is almost undetectable until it is too late. Your hearing can adapt to higher Before you add any sound equipment to your volumes of sound. Sound that seems normal can be loud vehicle like a tape player, CB radio, mobile and harmful to your hearing.

  • Page 192: Care Of Your Cassette Tape Player

    Care of Your Cassette Tape Player The cut tape detection feature of your cassette tape player may identify the cleaning cassette as a damaged A tape player that is not cleaned regularly can cause tape. To prevent the cleaning cassette from being reduced sound quality, ruined cassettes or a damaged ejected, use the following steps: mechanism.

  • Page 193: Care Of Your Compact Discs

    After you clean the player, press and hold the eject Fixed Mast Antenna button for three seconds to reset the CLN indicator. The The fixed mast antenna can withstand most vehicle radio will display to show the indicator was reset. washes without being damaged.

  • Page 194: Section 4 Your Driving And The Road

    Section 4 Your Driving and the Road Here you’ll find information about driving on different kinds of roads and in varying weather conditions. We’ve also included many other useful tips on driving. Defensive Driving Driving at Night Drunken Driving Driving in Rain and on Wet Roads Control of a Vehicle City Driving Braking...

  • Page 195: Defensive Driving

    Defensive driving really means “be ready for anything.” On city streets, rural roads or freeways, it means “always expect the unexpected.” Assume that pedestrians or other drivers are going to be careless and make mistakes. Anticipate what they might do. Be ready for their mistakes. Rear end collisions are about the most preventable of accidents.

  • Page 196: Drunken Driving

    Drunken Driving The obvious way to solve the leading highway safety problem is for people never to drink alcohol and then Death and injury associated with drinking and driving is drive. But what if people do? How much is “too much” a national tragedy.
  • Page 197 Since alcohol is carried in body water, this means that a woman generally will reach a higher BAC level than a man of her same body weight when each has the same number of drinks. The law in an increasing number of U.S. states, and throughout Canada, sets the legal limit at 0.08 percent.
  • Page 198 The body takes about an hour to rid itself of the alcohol in one drink. No amount of coffee or number of cold CAUTION: showers will speed that up. “I’ll be careful” isn’t the right answer. What if there’s an emergency, a need to Drinking and then driving is very dangerous.

  • Page 199: Control Of A Vehicle

    Control of a Vehicle Braking You have three systems that make your vehicle go where Braking action involves perception time and you want it to go. They are the brakes, the steering and reaction time. the accelerator. All three systems have to do their work First, you have to decide to push on the brake pedal.

  • Page 200: Hydraulic Brake Systems

    Avoid needless heavy braking. Some people drive in Hydraulic Brake Systems spurts heavy acceleration followed by heavy If your engine stops running, or if your primary brake braking rather than keeping pace with traffic. This is a system stops working, your vehicle has a reserve power mistake.

  • Page 201: Anti-Lock Brake System (Abs)

    Anti-Lock Brake System (ABS) Your vehicle has anti lock brakes. ABS is an advanced electronic braking system that will help prevent a braking skid. When you start your engine and begin to drive away, your anti lock brake system will check itself. You may hear a momentary motor or clicking noise while this test is going on.

  • Page 202: Braking In Emergencies

    The anti lock system can change the brake pressure Remember: Anti lock doesn’t change the time you need faster than any driver could. The computer is to get your foot up to the brake pedal or always decrease programmed to make the most of available tire and road stopping distance.
  • Page 203 Traction Control System (TCS) The light may also come on if a problem has been detected in either the traction control system or the (Option) anti lock brake system. Your vehicle may have a traction control system that The traction control system automatically comes on limits wheel spin.

  • Page 204: Power Steering

    Steering The traction you can get in a curve depends on the condition of your tires and the road surface, the angle at Power Steering which the curve is banked, and your speed. While you’re in a curve, speed is the one factor you can control. If you lose power steering assist because the engine Suppose you’re steering through a sharp curve.

  • Page 205: Steering In Emergencies

    Steering in Emergencies There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or a car suddenly pulls out from nowhere, or a child darts out from between parked cars and stops right in front of you.

  • Page 206: Off-Road Recovery

    Road Recovery Passing You may find that your right wheels have dropped off the The driver of a vehicle about to pass another on a edge of a road onto the shoulder while you’re driving. lane highway waits for just the right moment, accelerates, moves around the vehicle ahead, then goes back into the right lane again.
  • Page 207 Watch for traffic signs, pavement markings and lines. If other cars are lined up to pass a slow vehicle, wait If you can see a sign up ahead that might indicate a your turn. But take care that someone isn’t trying to turn or an intersection, delay your pass.

  • Page 208: Loss Of Control

    Loss of Control A cornering skid is best handled by easing your foot off the accelerator pedal. If you have the “Traction Control Let’s review what driving experts say about what System,” remember: It helps avoid only the acceleration happens when the three control systems (brakes, steering skid.

  • Page 209: Driving At Night

    Driving at Night Here are some tips on night driving. Drive defensively. Don’t drink and drive. Since you can’t see as well, you may need to slow down and keep more space between you and other vehicles. Slow down, especially on higher speed roads. Your headlamps can light up only so much road ahead.
  • Page 210 What you do in the daytime can also affect your night Keep your windshield and all the glass on your vehicle vision. For example, if you spend the day in bright clean inside and out. Glare at night is made much sunshine you are wise to wear sunglasses.

  • Page 211: Driving In Rain And On Wet Roads

    Driving in Rain and on Wet Roads Rain and wet roads can mean driving trouble. On a wet road, you can’t stop, accelerate or turn as well because your tire road traction isn’t as good as on dry roads. And, if your tires don’t have much tread left, you’ll get even less traction.
  • Page 212 CAUTION: Wet brakes can cause accidents. They won’t work as well in a quick stop and may cause pulling to one side. You could lose control of the vehicle. After driving through a large puddle of water or a vehicle wash, apply your brake pedal lightly until your brakes work normally.

  • Page 213: Driving Through Deep Standing Water

    Driving Through Deep Standing Water CAUTION: (Continued) NOTICE: carried away. As little as six inches of flowing water can carry away a smaller vehicle. If this happens, you and the other vehicle occupants If you drive too quickly through deep puddles or could drown.

  • Page 214: 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 215: Freeway Driving

    Freeway Driving At the entrance, there is usually a ramp that leads to the freeway. If you have a clear view of the freeway as you drive along the entrance ramp, you should begin to check traffic. Try to determine where you expect to blend with the flow.

  • Page 216: Highway Hypnosis

    Reduce your speed according to your speedometer, not What can you do about highway hypnosis? First, be to your sense of motion. After driving for any distance aware that it can happen. at higher speeds, you may tend to think you are going Then here are some tips: slower than you actually are.

  • Page 217: Hill And Mountain Roads

    Hill and Mountain Roads Here are some tips that can make your drive through steep country safer: Keep the vehicle in good shape. Check all fluid levels and also the brakes, tires, cooling system and transmission. These parts can work hard on mountain roads.
  • Page 218 Know how to go uphill. Use lower gears. They help cool your engine and transmission, and you can CAUTION: climb the hill better. Stay in your own lane when driving on two lane Coasting downhill in NEUTRAL (N) or with the roads in hills or mountains.

  • Page 219: Winter Driving

    Winter Driving Here are some tips for winter driving: Be sure the vehicle is in good shape for winter. You may want to put winter emergency supplies in your vehicle. 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.

  • Page 220: Driving On Snow Or Ice

    Driving on Snow or Ice What’s the worst time for this? “Wet ice.” Very cold snow or ice can be slick and hard to drive on. But wet Most of the time, those places where your tires meet the ice can be even more trouble because it may offer the road probably have good traction.

  • Page 221: If You're Caught In A Blizzard

    If you don’t have a traction system, accelerate gently. If You’re Caught in a Blizzard Try not to break the gentle traction. If you accelerate too fast, the drive wheels will spin and polish the surface under the tires even more. Whatever your braking system, allow greater following distance on any slippery road.
  • Page 222 Tie a red cloth to your mirror arm to alert police that you’ve been stopped by the snow. CAUTION: Put on extra clothing or wrap a blanket around you. If you have no blankets or extra clothing, make body Snow can trap exhaust gases under your vehicle. insulators from newspapers, burlap bags, rags, floor This can cause deadly CO (carbon monoxide) gas mats...

  • Page 223: Loading Your Vehicle

    If you have a diesel engine, you may have to run it at a Loading Your Vehicle higher speed to get enough heat. Then, shut the engine There is a GVW Rating label on your vehicle that shows off and close the window almost all the way to preserve how much weight it may properly carry.
  • Page 224 The GVWR includes the weight of the vehicle, all occupants, fuel and cargo. CAUTION: The GVW Rating label is provided by the final manufacturer and should be on the door or door jamb. Do not load your vehicle any heavier than the It also tells you the maximum weights for the front and GVWR, or either the maximum front or rear rear axles, called Gross Axle Weight Rating (GAWR).
  • Page 225 If you put things inside your vehicle like suitcases, Power Take Off (PTO) Switch tools, packages or anything else they will go as fast as (If Equipped) the vehicle goes. If you have to stop or turn quickly, or if there is a crash, they’ll keep going. If your vehicle is equipped for the addition of a PTO, this factory installed switch...

  • Page 226: Section 5 Problems On The Road

    Section 5 Problems on the Road Here you’ll find what to do about some problems that can occur on the road. Hazard Warning Flashers Cooling System Other Warning Devices Engine Fan Noise Jump Starting If a Tire Goes Flat Towing Your Vehicle Changing a Flat Tire Engine Overheating If You’re Stuck: In Sand, Mud, Ice or Snow...

  • Page 227: Hazard Warning Flashers

    Hazard Warning Flashers Your hazard warning flashers button is located on top of the steering column. Your hazard warning flashers work no matter what position your key is in, and even if the key isn’t in. Press the button to make the front and rear turn signal lamps flash on and off.

  • Page 228: Other Warning Devices

    Other Warning Devices NOTICE: If you carry reflective triangles, you can set one up at the side of the road behind your vehicle in the Ignoring these steps could result in costly damage recommended manner per Federal Motor Carrier Safety to your vehicle that wouldn’t be covered by your Regulation (FMCSR) Section 392.22, to warn others.
  • Page 229 If you have a diesel engine vehicle with two batteries NOTICE: (or more), you should know before you begin that, especially in cold weather, you may not be able to get enough power from a single battery in another If you leave your radio on, it could be badly vehicle to start your diesel engine.
  • Page 230 4. Open the hood of the other vehicle and locate the You will not need to access your battery battery. Find the positive (+) and negative ( (or batteries) for jump starting. The remote terminals on that battery. positive (+) terminal is for that purpose. Open the hood of your vehicle and find the CAUTION:...
  • Page 231 6. Connect the red CAUTION: positive (+) cable to the positive (+) terminal of the Fans or other moving engine parts can injure you dead battery. Use a badly. Keep your hands away from moving parts remote positive (+) once the engine is running. terminal if the vehicle has one.
  • Page 232 7. Don’t let the other end 8. Now connect the black touch metal. Connect it negative ( ) cable to the to the positive (+) negative ( ) terminal of terminal of the good the good battery. Use a battery. Use a remote remote negative ( positive (+) terminal if terminal if the vehicle...
  • Page 233 10. Now start the vehicle with the good battery and run the engine for one or two minutes. If your vehicle has the high idle option, use it. 11. Try to start the vehicle with the dead battery. If it won’t start after a few tries, it probably needs service.
  • Page 234 To disconnect the jumper cables from both vehicles, do the following: 1. Disconnect the black negative ( ) cable from the vehicle that had the dead battery. 2. Disconnect the black negative ( ) cable from the vehicle with the good battery. 3.

  • Page 235: Towing Your Vehicle

    Towing Your Vehicle CAUTION: (Continued) When the brake springs are manually CAUTION: compressed, you will have no brakes. Release your air operated parking brakes To help avoid serious personal injury to you manually only to tow the vehicle. Never or others: drive the vehicle with the brakes released.
  • Page 236 Here are specific towing instructions: Towing Your Vehicle From the Front (Front Wheels Off the Ground) Before Towing Block the rear wheels of the disabled vehicle. On vehicles with air brakes, release the emergency brake system by compressing the brake chamber springs as outlined in this section.
  • Page 237 Towing the Vehicle with the Front Bumper Installed 1. Connect and lock the lift chains to the front axle, outside of the spring anchor plates as previously shown. 2. Place a 6” x 6” x 5’ hardwood beam underneath and slightly behind the front spring shackle brackets as previously shown.
  • Page 238 A. Hardwood Board A. Rubber Pad E. Hardwood Beam B. Swing Arm B. Hardwood Board F. Bumper 5. Raise the vehicle to the required height. C. Shackle Bracket G. Tow Bar D. Lift Chain 4. Remove the remaining slack in the lift chains. The tow bar swing arm should rest against the 2”...
  • Page 239 Single Drive Rear Axle Tandem Drive Rear Axle (Both Axles on the Ground Due to Type of Suspension or Attached Load) Disconnect the propshaft at the rear axle. Secure the propshaft to the frame or crossmember. Disconnect the propshaft at the forward tandem axle. Secure the propshaft to the frame or crossmember.
  • Page 240 Towing Your Vehicle From the Front After Towing (All Wheels On the Ground) 1. Block the rear wheels and install axle and propshafts. Your vehicle may be towed on all wheels provided the 2. Check for proper phasing of universal joints. steering is working.
  • Page 241 Releasing Air-Operated Parking Brakes 2. Remove the release stud and nut from the side of the brake chamber. Some chambers have studs which are (If Equipped) visible at all times. If your vehicle has air brakes, you could have a special towing problem.

  • Page 242: Engine Overheating

    6. Turn the stud nut Engine Overheating clockwise several turns You will find a coolant temperature warning gage on to release the brakes. your vehicle’s instrument panel, as well as a low coolant Follow the same warning light. Your vehicle also has a check gages procedure to release the warning light on the instrument panel.

  • Page 243: If Steam Is Coming From Your Engine

    If Steam Is Coming From Your Engine CAUTION: Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone away from the vehicle until it cools down.

  • Page 244: If No Steam Is Coming From Your Engine

    If No Steam Is Coming From Your Engine If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about 10 minutes. An overheat warning, along with a low coolant light, If the warning doesn’t come back on, you can drive can indicate a serious problem.

  • Page 245: Cooling System

    Cooling System If the coolant inside the coolant surge tank is boiling, don’t do anything else until it cools down. The vehicle When you decide it’s safe to lift the hood, here’s what should be parked on a level surface. you’ll see: The coolant level should be at COLD...
  • Page 246 NOTICE: CAUTION: Engine damage from running your engine Heater and radiator hoses, and other engine without coolant isn’t covered by your warranty. parts, can be very hot. Don’t touch them. If you do, you can be burned. Don’t run the engine if there is a leak. If you run the engine, it could lose all coolant.
  • Page 247 How to Add Coolant to the Coolant CAUTION: (Continued) Surge Tank If you haven’t found a problem yet, check to see if Never turn the cap when the cooling system, coolant is visible in the surge tank. If coolant is visible including the coolant surge tank pressure cap, is but the coolant level isn’t at COLD FILL or higher, add hot.
  • Page 248 CAUTION: CAUTION: Adding only plain water to your cooling system You can be burned if you spill coolant on hot can be dangerous. Plain water, or some other engine parts. Coolant contains ethylene glycol liquid such as alcohol, can boil before the proper and it will burn if the engine parts are hot coolant mixture will.
  • Page 249 2. Then keep turning the pressure cap slowly, and 3. Then fill the coolant surge tank with the proper remove it. mixture, to the FULL mark. 5-24...
  • Page 250 5. Then replace the pressure cap. Be sure the pressure cap is hand tight and fully seated. 4. With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan.

  • Page 251: Engine Fan Noise

    Engine Fan Noise If a Tire Goes Flat Your vehicle has a clutched engine cooling fan. When It’s unusual for a tire to “blow out” while you’re driving, the clutch is engaged, the fan spins faster to provide especially if you maintain your tires properly. If air goes more air to cool the engine.

  • Page 252: Changing A Flat Tire

    Changing a Flat Tire So if you’re stopped somewhere by a flat or damaged tire or wheel, you should get expert help. See “Roadside Your truck, when new, did not include tire changing Assistance” in the Index. equipment or a place to store a tire in the vehicle. Few drivers of these vehicles have the necessary equipment aboard to be able to change a flat tire safely.

  • Page 253: Rocking Your Vehicle To Get It Out

    If You’re Stuck: In Sand, Mud, Ice NOTICE: or Snow In order to free your vehicle when it is stuck, you will Spinning your wheels can destroy parts of your need to spin the wheels, but you don’t want to spin your vehicle as well as the tires.
  • Page 254 Using the Tow Hooks (Option) CAUTION: These hooks, when used, are under a lot of force. Always pull the vehicle straight out. Never pull on the hooks at a sideways angle. The hooks could break off and you or others could be injured from the chain or cable snapping back.

  • Page 255: Section 6 Service And Appearance Care

    Section 6 Service and Appearance Care Here you will find information about the care of your vehicle. This section begins with service and fuel information, and then it shows how to check important fluid and lubricant levels. There is also technical information about your vehicle, and a part devoted to its appearance care.

  • Page 256: Doing Your Own Service Work

    Service Doing Your Own Service Work If you want to do some of your own service work, you’ll Your dealer knows your vehicle best and wants you to want to use the proper service manual. It tells you much be happy with it. We hope you’ll go to your dealer for more about how to service your vehicle than this manual all your service needs.

  • Page 257: Two Safety Cautions About Engine Fan Breakage

    Two Safety Cautions about Engine CAUTION: (Continued) Fan Breakage Winter Fronts, Grille Covers or Obstructions Winter fronts, grille covers or other add CAUTION: equipment causing obstructions in front or behind the fan should not be used on this vehicle. Changing the Fan Drive Ratio or Engine They may increase the stress on the fan as the Governed Speed blades pass over the covered areas.

  • Page 258: Gasoline Octane

    Fuel (Gasoline Engine) In Canada, look for the “Auto Makers’ If your vehicle has a diesel engine, see “Diesel Engine Choice” label on Fuel” in this section. For vehicles with gasoline engines, the pump. please read this. Gasoline Octane Use regular unleaded gasoline with a posted octane of 87 or higher.

  • Page 259: Diesel Fuel Requirements And Fuel System

    To provide cleaner air, all gasolines in the United States Diesel Fuel Requirements and are now required to contain additives that will help Fuel System prevent engine and fuel system deposits from forming, allowing your emission control system to work properly. Diesel Engine Fuel You should not have to add anything to your fuel.

  • Page 260: What Fuel To Use

    What Fuel to Use Diesel fuel may foam when you fill your tank. This can cause the automatic pump nozzle to shut off, even In the United States, for best results use Number 2 though your tank isn’t full. If this happens, just wait for diesel fuel year round (above and below freezing the foaming to stop and then continue to fill your tank.

  • Page 261: Very Cold Weather Operation

    What Fuel to Use in Canada Very Cold Weather Operation Canadian fuels are blended for seasonal changes. Diesel Follow the instructions listed previously under the Type “A” fuel is blended for better cold weather starting heading “What Fuel to Use.” (below 0 _ F or 18 _ C);...

  • Page 262: 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 doesn’t regularly inspect and clean its fuel tanks, or if it gets contaminated fuel from its suppliers. CAUTION: If this happens, a Diesel fuel containing water is still flammable.
  • Page 263 If it comes on, use this chart. Water In Fuel Indicator Chart Problem Recommended Action NOTICE: Indicator comes Drain water from fuel filter. on intermittently. If you drive when this warning indicator is on, Indicator you can damage your fuel injection system and stays on: your engine.
  • Page 264 To drain water, do the following: 5. Remove the fuel resistant container and properly dispose of the contaminated fuel. To find out how to 1. Stop and park the vehicle in a safe place. Turn off properly dispose of contaminated diesel fuel, see the engine and apply the parking brake.
  • Page 265 How does air get into the fuel lines? How do I prime the vehicle? One of the following may have happened: Your vehicle is equipped with a priming pump which is part of the engine mounted fuel filter. The vehicle ran out of fuel, or The vent valve and the fuel filter primer pump The fuel filter was removed for servicing or are located on top of the fuel filter housing.
  • Page 266 5. Open the fuel filter vent 7. Operate the priming pump until a small amount of valve by turning the fuel seeps from the vent valve. When you see the screw counterclockwise fuel, the filter is now full of fuel and the system several full turns.
  • Page 267 Running Out of Fuel (Diesel Engines) To restart your engine: 1. If you’re parked on a level surface, add at least two If the engine stalls and you think that you’ve run out of gallons of fuel to each fuel tank your vehicle may fuel, do this: have.
  • Page 268 Fuel Filter Replacement (Diesel Engines) 2. Unplug the water sensor wire connected to the If you want to change the fuel filter yourself, here’s how fuel filter and unscrew to do it: the filter element. CAUTION: Diesel fuel is flammable. It could start a fire if something ignites it, and you could be burned.

  • Page 269: Fuels In Foreign Countries

    Fuels in Foreign Countries Filling Your Tank (Gasoline Engines) If you plan on driving in another country outside the United States or Canada, the proper fuel may be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel.
  • Page 270 The fuel cap can be on either or both sides of your vehicle depending on option content. To take off the cap, turn it slowly to the left (counterclockwise). CAUTION: Gasoline Engine Vehicles: If you get gasoline on you and then something ignites it, you could be badly burned.

  • Page 271: Filling A Portable Fuel Container

    Filling a Portable Fuel Container NOTICE: CAUTION: If you need a new fuel cap, be sure to get the right type. Your dealer can get one for you. If you get the wrong type, it may not fit or have proper Never fill a portable fuel container while it is in venting, and your fuel tank and emissions system your vehicle.

  • Page 272: Checking Things Under The Hood

    Checking Things Under the Hood Hood Latches 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 273 Then take the hand hold and pull the hood forward. When you tilt the hood far enough, the cables will support it. 6-19...

  • Page 274: Tampering With Noise Control System Prohibited

    Noise Control System Tampering With Noise Control System Prohibited The following information relates to compliance with federal noise emission standards for vehicles with a Federal law prohibits the following acts or the Gross Vehicle Weight Rating (GVWR) of more than causing thereof: 10,000 lbs.
  • Page 275 Among those acts presumed to constitute tampering are Engine Oil (Gasoline Engine) the acts listed below. If the low oil light appears Insulation: on the instrument cluster, it Removal of the noise shields or any underhood means you need to check insulation.

  • Page 276: Checking Engine Oil

    Checking Engine Oil Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, It’s a good idea to check your engine oil every time you keeping the tip down, and check the level. get fuel.
  • Page 277 When to Add Engine Oil The engine oil fill cap is located near the engine oil If the oil is at or below the cross hatched area, then dipstick in the engine you’ll need to add at least one quart of oil. But you must compartment, on the use the right kind.
  • Page 278 What Kind of Engine Oil to Use Oils recommended for your vehicle can be identified by looking for the starburst symbol. This symbol indicates that the oil has been certified by the American Petroleum Institute (API). Do not use any oil which does not carry this starburst symbol.

  • Page 279: Engine Oil Additives

    As in the chart shown previously, SAE 5W 30 is best for When to Change Engine Oil your vehicle. However, you can use SAE 10W 30 if it’s (GM Oil Life System going to be 0 _ F ( 18 _ C) or above. These numbers on Your vehicle has a computer system that lets you know an oil container show its viscosity, or thickness.
  • Page 280 How to Reset the Change Oil Light What to Do with Used Oil The GM Oil Life System calculates when to change Used engine oil contains certain elements that may be your engine oil and filter based on vehicle use. Anytime unhealthy for your skin and could even cause cancer.
  • Page 281 Engine Oil (Caterpillar Turn off the engine and give the oil at least five minutes to drain back into the oil pan. With a cool engine, allow Diesel Engines) 30 minutes. If you don’t, the oil dipstick might not show the actual level.
  • Page 282 When to Add Engine Oil What Kind of Engine Oil to Use If the oil is at or below the ADD line, then you’ll need Look for these two things: to add at least one quart of oil. But you must use the right kind.
  • Page 283 SAE 15W As shown in the viscosity chart, SAE 15W 40 is best for your vehicle. However, you can use SAE 30 at temperatures above 0 When it’s very cold, below 0 C), you should use SAE 5W 40 to improve cold starting. These numbers on the oil container show its viscosity, or thickness.

  • Page 284: Engine Air Cleaner/Filter

    Engine Oil Additives Engine Air Cleaner/Filter Don’t add anything to your oil. The recommended oils Refer to the Maintenance Schedule to determine when to with the API service symbol are all you will need for replace the engine air cleaner/filter. See “Scheduled good performance and engine protection.
  • Page 285 The restriction indicator is located in the engine CAUTION: compartment near the engine air cleaner/filter, Gasoline Engines Only: Operating the engine on the passenger’s side of with the air cleaner/filter off can cause you or the vehicle. others to be burned. The air cleaner not only cleans the air, it stops flame if the engine backfires.

  • Page 286: Automatic Transmission Fluid

    Automatic Transmission Fluid Manual Transmission Fluid Refer to the Maintenance Schedule to determine how When to Check often to check the lubricant and when to change it. See A good time to have it checked is when the engine oil is “Scheduled Maintenance Services”...

  • Page 287: How To Add Fluid

    How to Check and What to Use How to Add Fluid Check the fluid level only when your engine is off, the Here’s how to add fluid. Refer to the Maintenance vehicle is parked on a level place and the transmission is Schedule to determine the proper fluid to use.

  • Page 288: Rear Axle

    Rear Axle If the level is below the bottom of the filler plug hole, you’ll need to add some lubricant. Add enough lubricant When to Check and Change Lubricant to raise the level to the bottom of the filler plug hole. Refer to the Maintenance Schedule to determine how What to Use often to check the lubricant and when to change it.

  • Page 289: Engine Coolant

    Engine Coolant A 50/50 mixture of clean, drinkable water and COOL R coolant will: If your vehicle has a Caterpillar diesel engine, the Caterpillar R Operation & Maintenance Manual provided Give freezing protection down to with your vehicle has information regarding the proper Give boiling protection up to 252 F (122 coolant to use.

  • Page 290: What To Use

    What to Use NOTICE: Use a mixture of one half clean, drinkable water and half DEX COOL coolant which won’t damage If you use an improper coolant mixture, your aluminum parts. If you use this coolant mixture, you engine could overheat and be badly damaged. don’t need to add anything else.

  • Page 291: Checking Coolant

    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. The vehicle must be on a level surface.
  • Page 292 Adding Coolant Surge Tank Pressure Cap If you need more coolant, add the proper DEX COOL The surge tank pressure cap coolant mixture at the surge tank, but only when the is located in the engine engine is cool. compartment, on the driver’s side of the vehicle.

  • Page 293: How To Check Power Steering Fluid

    Power Steering Fluid If your power steering fluid level is low, this can cause the BRAKE or service brake soon warning lights to See your Maintenance Schedule for when to check your come on. If either light remains on after you have added power steering fluid.

  • Page 294: Windshield Washer Fluid

    Windshield Washer Fluid Adding Washer Fluid Your vehicle has a low What to Use washer fluid light that lets When you need windshield washer fluid, be sure to read you know when to add the manufacturer’s instructions before use. If you will be washer fluid.

  • Page 295: Brake Fluid

    Brakes NOTICE: Brake Fluid When using concentrated washer fluid, If your vehicle has hydraulic brakes, there’s a brake follow the manufacturer’s instructions for master cylinder. Refer to the Maintenance Schedule to adding water. determine when to check your brake fluid. Don’t mix water with ready use washer fluid.
  • Page 296 Checking Brake Fluid (Hydro Max System) Checking Brake Fluid (Hydro Boost System) Apply the brake pedal several times with the ignition Apply the brake pedal several times with the ignition off. Then clean one of the reservoir caps and the area off.
  • Page 297 What to Add NOTICE: Use the proper fluid listed in your Maintenance Schedule. Use new brake fluid from a sealed Using the wrong fluid can badly damage container only. brake system parts. For example, just a few Always clean the brake fluid reservoir cap/cover and the drops of mineral based oil, such as engine area around the cap/cover before removing it.
  • Page 298 Four-Wheel Disc Brakes (Hydraulic Only) Four-Wheel and Six-Wheel Drum Brakes (Air Only) Your vehicle has four wheel disc brakes. The brake drums should be removed and inspected each Some driving conditions or climates may cause a brake time the tires are removed for rotation or changing. squeal when the brakes are first applied or lightly When you have the front brakes replaced, have the rear applied.

  • Page 299: Brake Pedal Travel

    Brake Pedal Travel Replacing Brake System Parts See your dealer if the brake pedal does not return to The braking system on a vehicle is complex. Its many normal height, or if there is a rapid increase in pedal parts have to be of top quality and work well together if travel.

  • Page 300: Air Dryer

    Air Brake Systems (If Equipped) Air Dryer If you have air brakes, it is important to get rid of If your vehicle has air brakes, you have an air dryer. moisture in the system. Moisture will damage your This collects and removes dirt, moisture or other foreign system if it isn’t removed daily.

  • Page 301: Clutch Pedal Free Travel

    Electric Air Compressor (If Equipped) Clutch Pedal Free Travel Your vehicle may be equipped with an electric air If you have a manual transmission, your clutch will need compressor. This compressor is used to run options that adjustment when pedal free travel gets down to about require pressurized air, such as an air horn, air seat, 1/4 inch (32 mm), as measured at the clutch pedal pad.
  • Page 302 Single Axle Models 6-48...
  • Page 303 ITEM NO. ITEM REMARKS Brake Camshaft One fitting each (apply sparingly). Steering Column Slip Joint* One fitting. Steering Drag Link Ends One fitting at each end. Pivot Points and Hinges Apply chassis lubricant Pivot Points and Hinges Apply chassis lubricant. One fitting.
  • Page 304 ITEM NO. ITEM REMARKS Clutch Release Bearing* Cup or fitting. Battery Terminal Keep coated with petroleum jelly. (except “ST” type) Transmission Fill to level of filler plug. Propshaft Slip Joints Lubricate with GM Part No. 1051344 Wheel Bearing Lubricant. Parking Brake Clevis Pins$ Apply chassis lubricant.
  • Page 305 Tandem Axle Models ITEM ITEM REMARKS Brake Camshafts One fitting each. Joint One fitting each joint. Propshaft U Lubricate with GM Part No. 1051344, Wheel Bearing Lubricant. Brake Shoe Apply engine oil at pin Roller Pins to shoe joint only. Rear Spring Pin One fitting each side.

  • Page 306: Vehicle Storage

    Battery CAUTION: Your new vehicle comes with one or more maintenance free ACDelco batteries. When it’s time for a new battery, be sure it has the replacement number shown Batteries have acid that can burn you and gas on the original battery’s label. We recommend an that can explode.

  • Page 307: Windshield Wiper Blade Replacement

    Windshield Wiper Blade Replacement Windshield wiper blades should be inspected at least twice a year for wear or cracking. See “Wiper Blade Check” in the Index for more information. Replacement blades come in different types and are removed in different ways. Here’s how to remove the Shephard’s Hook type: 2.

  • Page 308: Other Service Items

    Other Service Items If your vehicle is equipped with the optional Davco spin on type filter, it is located on the driver’s side Fuel Filter (Gasoline Engines) frame rail. Fuel Filter (Diesel Engines) If you have a diesel engine, your fuel filter is located in the engine compartment on the driver’s side of the vehicle, or along the driver’s side frame rail.
  • Page 309 Primary Fuel Filter and Water Separator Secondary Fuel Filter and Water (If Equipped) Separator/Heater (If Equipped) If you have a diesel engine, If you have a Caterpillar you may have this spin diesel engine, you may also filter. It is located on the have this spin on filter and driver’s side frame rail.
  • Page 310 Automatic Ether Injection System To change an empty ether cylinder, follow these steps. (If Equipped) 1. Loosen the screw head on the cylinder bracket clamp. If you have a Caterpillar 2. Spread the clamp apart. diesel engine, you may have this feature.

  • Page 311: Front Wheel Bearings With Oil-Filled Hubs

    Front Wheel Bearings with Oil-Filled Hubs Refer to your Maintenance Schedule for the proper oil to use. If your vehicle has oil filled When you fill the hub, check the glass again after hubs, occasionally check to driving a short distance. It takes a while for the oil to see if they have enough oil.
  • Page 312 Tires CAUTION: (Continued) Your new vehicle comes with high quality tires made by a leading tire manufacturer. If you ever have questions Underinflated tires pose the same danger as about your tire warranty and where to obtain service, see overloaded tires. The resulting accident your General Motors Warranty booklet for details.

  • Page 313: Inflation -- Tire Pressure

    Inflation -- Tire Pressure NOTICE: (Continued) The GVW Rating label, which is on the driver’s door, shows the correct inflation pressures for your tires If your tires have too much air (overinflation), when they’re cold. “Cold” means your vehicle has you can get the following: been sitting for at least three hours or driven no more Unusual wear...

  • Page 314: Dual Tire Operation

    When to Check Dual Tire Operation Check your tires once a month or more. Also, check the When the vehicle is new, check the wheel nut tightness tire pressure of the spare tire (if equipped). on all wheels with a torque wrench after your first 100 miles (160 km) and then 1,000 miles (1 600 km) How to Check after that.
  • Page 315 When It’s Time for New Tires CAUTION: Replace your tires when the tread depth is down to 1/8 of an inch (3.2 mm) for the front tires, or 1/16 of an inch (1.6 mm) for a rear tire. Also, you need a new Mixing tires could cause you to lose control while tire if: driving.

  • Page 316: Wheel Alignment And Tire Balance

    Wheel Alignment and Tire Balance Tightening the Wheel Nuts The wheels on your vehicle were aligned at the factory to give you the longest tire life and best overall CAUTION: performance. Proper front wheel alignment must be maintained in Wheel nuts that are not tight can work loose. If order to ensure efficient steering, good directional all the nuts on a wheel come off, the wheel can stability, and prevent abnormal tire wear.
  • Page 317 Piloted Wheels, 8 Hole or 10 Hole The studs and nuts used with these wheels have right hand threads. 1. With intermittent pilot pads, position a pad at 12 o’clock to center the wheel and reduce run out. 2. Put the tire and rim assembly on the axle hub. Install the outer rear tire and rim assembly so that its valve stem is exactly opposite the valve stem on the inner tire and rim assembly.
  • Page 318 CAUTION: If wheel studs are damaged, they can break. If all the studs on a wheel broke, the wheel could come off and cause a crash. If any stud is damaged because of a loose running wheel, it could be that all of the studs are damaged.
  • Page 319 How Often to Check CAUTION: Wheel tightness is so important you should have a technician check nut tightness on all wheels with a torque wrench after your first 100 miles (160 km), and Rust or dirt on a wheel, or on the parts to which then 1,000 miles (1 600 km) after that.

  • Page 320: Wheel Replacement

    Wheel Replacement CAUTION: Replace any wheel that is bent, cracked or badly rusted. If wheel nuts keep coming loose, replace the wheel. If the wheel leaks air, replace it. Without the correct wheel, you may not be able to stop properly, and you could have other Your dealer will know the kind of wheel you need.

  • Page 321: Appearance Care

    Appearance Care NOTICE: Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flame if you strike a The wrong wheel can cause trouble in bearing match or get them on a hot part of the vehicle. Some are life, brake cooling, speedometer/odometer dangerous if you breathe their fumes in a closed space.

  • Page 322: Cleaning The Inside Of Your Vehicle

    Don’t use any of these unless this manual says you can. Carefully scrape off any excess stain. In many uses, these will damage your vehicle: Use a clean cloth or sponge, and change to a clean Alcohol area often. A soft brush may be used if stains are stubborn.

  • Page 323: Special Fabric Cleaning Problems

    Special Fabric Cleaning Problems Cleaning Vinyl Stains caused by such things as catsup, coffee (black), Use warm water and a clean cloth. egg, fruit, fruit juice, milk, soft drinks, vomit, urine and Rub with a clean, damp cloth to remove dirt. blood can be removed as follows: You may have to do it more than once.

  • Page 324: Care Of Safety Belts

    Care of Safety Belts Cleaning Glass Surfaces Keep belts clean and dry. Glass should be cleaned often. GM Glass Cleaner or a liquid household glass cleaner will remove normal tobacco smoke and dust films on interior glass. See CAUTION: “Appearance Care and Materials” in the Index. Do not bleach or dye safety belts.

  • Page 325: Cleaning The Outside Of Your Vehicle

    Cleaning the Outside of the Cleaning the Outside of Your Vehicle Windshield and Wiper Blades The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, Washing Your Vehicle wax, sap or other material may be on the blade or...

  • Page 326: Cleaning Exterior Lamps/Lenses

    Cleaning Exterior Lamps/Lenses Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird Use only lukewarm or cold water, a soft cloth and a droppings, chemicals from industrial chimneys, etc., can vehicle washing soap to clean exterior lamps and lenses.

  • Page 327: Cleaning Tires

    Cleaning Aluminum or Cleaning Tires Chrome Plated Wheels (If Equipped) To clean your tires, use a stiff brush with a tire cleaner. Keep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After NOTICE: rinsing thoroughly, dry with a soft clean towel.

  • Page 328: Finish Damage

    Finish Damage Underbody Maintenance Any stone chips, fractures or deep scratches in the finish Chemicals used for ice and snow removal and dust should be repaired right away. Bare metal will corrode control can collect on the underbody. If these are not quickly and may develop into a major repair expense.
  • Page 329 GM Vehicle Care/Appearance Materials 6-75...

  • Page 330: Vehicle Identification Number (Vin)

    Vehicle Identification Number (VIN) Service Statement One of these statements is on your GVW Rating label. Here is what each one means. TRUCK SERVICE A vehicle made to carry property or special equipment. It is made for uniform frame loading. That includes using the vehicle to pull a full trailer.

  • Page 331: Service Parts Identification Label

    Service Parts Identification Label Electrical System You’ll find this label in a location determined by the Add-On Electrical Equipment body manufacturer. It’s very helpful if you ever need to order parts. On this label is: NOTICE: your VIN, the model designation, Don’t add anything electrical to your vehicle paint information and unless you check with your dealer first.

  • Page 332: Headlamp Wiring

    Headlamp Wiring Fusible Links The headlamp wiring is protected by a circuit breaker in A fusible link is a short piece of wire several gauge sizes the light switch. An electrical overload will cause the smaller than the circuit it protects. It will melt in an lights to go on and off, or in some cases to remain off.

  • Page 333: Power Windows And Other Power Options

    Power Windows and Other Power Options Fuses and Circuit Breakers Circuit breakers in the fuse panel protect the power The wiring circuits in your vehicle are protected from windows and other power accessories. When the current short circuits by a combination of fuses, circuit breakers, load is too heavy, the circuit breaker opens.
  • Page 334 Instrument Panel Fuse Block There are two instrument panel fuse blocks located behind the instrument panel on the passenger’s side of the vehicle. Be sure to replace fuses with fuses of the same rating. Do not use fuses of higher amperage than those indicated on the fuse block.
  • Page 335 Fuse Usage Relay Usage RH PARK LP Right hand Parking Lamps BRAKE LAMP C4/C5 Brake Lamps, C6/C7/C8 Tractor/Trailer Wiring LH PARK LP Left hand Parking Lamps IGN 4 Ignition RADIO U Radio MARKER LP Sidemarker and Clearance Lamps PWR WINDOW Power Windows HTD FUEL LB7/LG4 Heated Fuel...
  • Page 336 Circuit Breaker Usage Hazard Warning Flashers Power Post Courtesy Lamps Warning Lights, Gages and Indicators Crank Rear Axle Trailer Turn Signals/Hazard Warning Flashers Radio/Chime Daytime Running Lamps Air Bag System Exterior/Interior Lamps Parking Brake Fuse Block 2 Accessory Power Circuit Breaker Usage Ignition Stoplamps Sidemarker Lamps...
  • Page 337 Underhood Fuse Block To access the fuse blocks, gently squeeze both sides of the cover to unlatch the tabs at the top. Then, unsnap When a circuit goes out, the problem could be in either both attachments at the bottom and remove the cover. the primary or secondary underhood fuse blocks.
  • Page 338 Relay Usage HORN Horn IGN A Ignition Power Take REVERSE Reverse NEUTRAL Neutral Start START Fuse Usage RR DEFOG Rear Defog ENG 1 Engine 1 ENG 3 Engine 3 Powertrain Control Module Primary Underhood Fuse Block BLANK Empty Relay Usage ENG 4 Engine 4 NOTE 1...
  • Page 339 Fuse Usage BLANK Empty 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 ENGINE Engine E/A PUMP Electronic/Automatic Pump Secondary Underhood Fuse Block HORN Horn Fuse...

  • Page 340: Replacement Bulbs

    Replacement Bulbs It is recommended that you use an ACDelco type bulb whenever you need to replace one. If you need a bulb replaced, contact your dealer. Capacities and Specifications Engine Specifications Engine RPO Engine Type 7.2L L6 8.1L V8 7.8L L6 6.6L V8 Fuel System...

  • Page 341: Cooling System Capacity

    Cooling System Capacity C6/C7/C8 Models ....Quarts (Liters) 7.8L 200 215 hp engine with The following approximate capacities are given in automatic transmission ....33.7 (31.9) English and metric conversions.

  • Page 342: Fuel Tank Capacity

    Engine Oil with Filter Capacity Fuel Tank Capacity C4/C5 Models ....Gallons (Liters) Engine Quarts (Liters) Standard* ......41 (155.2) 7.2L** 30.0 (28.4)*...
  • Page 343 Transmission Capacity Automatic Transmission ..Pints (Liters) MD 3060 P ..... 52.0 (24.6)* For manual transmissions, the correct oil level is to the MD 3560 P...

  • Page 344: Normal Maintenance Replacement Parts

    Rear Axle Lubricant Capacity Air Conditioning Refrigerant Single Speed Axle ....Pints (Liters) Capacity ....... . 10.0 (4.7) If you do your own service work, you’ll need the proper S135...
  • Page 345 Service Replacement Part and Filter Recommendations Engine 7.2L 8.1L 7.8L 6.6L Spark Plug ACDelco 0.060 inch (1.52 mm) Torque 14.75 lb. ft. (20.0 Nm) Oil Filter 1R0739 ACDelco PF454 GM Part No. 94392475 ACDelco PF1218 Air Cleaner Donaldson P522606 ACDelco A1518C C4/C5 Models: C4/C5 Models:...
  • Page 346 Engine 7.2L 8.1L 7.8L 6.6L Power Steering GM Part GM Part GM Part GM Part Fluid Filter No. 88892858 No. 88892858 No. 88892858 No. 88892858 Secondary GM Part GM Part 1R0751 Fuel Filter No. 25055052 No. 15098649 Pressure Caps GM Part GM Part GM Part No.

  • Page 347: Section 7 Maintenance Schedule

    Section 7 Maintenance Schedule This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety, dependability and emission control performance. Introduction Part B: Owner Checks and Services Part A: Scheduled Maintenance Services Part C: Recommended Fluids and Lubricants Scheduled Maintenance Part D: Maintenance Record...

  • Page 348: Your Vehicle And The Environment

    Introduction Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle.

  • Page 349: How This Section Is Organized

    How This Section is Organized “Part B: Owner Checks and Services” tells you what should be checked and when. It also explains what This maintenance schedule is divided into four parts: you can easily do to help keep your vehicle in good condition.

  • Page 350: Using Your Maintenance Schedule

    Part A: Scheduled Maintenance The proper fluids and lubricants to use are listed in Part C. Make sure whoever services your vehicle uses Services these. All parts should be replaced and all necessary repairs done before you or anyone else drives Using Your Maintenance Schedule the vehicle.

  • Page 351: Scheduled Maintenance

    Scheduled Maintenance 100 Miles (160 km) Wheel stud nut service. (46) The services shown in this schedule up to 100,000 miles (166 000 km) should be repeated after 100,000 miles 1,000 Miles (1 600 km) (166 000 km) at the same intervals for the life of Wheel stud nut service.
  • Page 352 15,000 Miles (24 000 km) 20,000 Miles (32 000 km) Gasoline Engine Only: Check Oil Life System. DURAMAX Diesel Only: Change engine oil If engine oil and filter are changed, reset system. and filter (or every 12 months, whichever occurs See “Engine Oil”...
  • Page 353 Wheel bearing (grease type) service (or every Trailer brake hand control valve service (or every 24 months, whichever occurs first, and whenever 3 months, or every 900 hours, whichever hubs are removed). (23)(46) occurs first). (42) L18/LB7 Engines Only: Clutch pedal free Wheels and tires service.
  • Page 354 30,000 Miles (48 000 km) (Continued) L18/LB7 Engines Only: Clutch pedal free travel service. (10) Wheels and tires service. (15) Hydraulic brake service (or every 6 months, 40,000 Miles (64 000 km) whichever occurs first). (7)(46) DURAMAX Diesel Only: Change engine oil Parking brake service (or every 6 months, whichever and filter (or every 12 months, whichever occurs occurs first).
  • Page 355 Wheel bearing (grease type) service (or every Air brake service (or every 6 months, whichever 24 months, whichever occurs first, and whenever occurs first). (39) hubs are removed). (23)(46) Air brake automatic slack adjuster service Inspect door hinge pins and bushings and replace (or every 500 hours, whichever occurs first).
  • Page 356 52,500 Miles (84 000 km) Replace fuel filter(s) (or every 12 months, whichever occurs first). (3) Gasoline Engine Only: Check Oil Life System. Inspect door hinge pins and bushings and replace If engine oil and filter are changed, reset system. as necessary.
  • Page 357 67,500 Miles (108 000 km) Evaporative Control System service (if equipped) (or every 24 months, whichever occurs first). (3)(26) Gasoline Engine Only: Check Oil Life System. Air brake service (or every 6 months, whichever If engine oil and filter are changed, reset system. occurs first).
  • Page 358 75,000 Miles (120 000 km) Shields and underhood insulation service. (4)(5)(21) Gasoline Engine Only: Check Oil Life System. L18/LB7 Engines Only: Clutch pedal free travel service. (10) If engine oil and filter are changed, reset system. See “Engine Oil” in the Index. (3)(9) 80,000 Miles (128 000 km) Chassis lubrication service (or every 6 months, DURAMAX...
  • Page 359 90,000 Miles (144 000 km) Steering system service. (13) Front and rear suspension service. (14) Gasoline Engine Only: Check Oil Life System. If engine oil and filter are changed, reset system. Spring axle U bolts and shackle See “Engine Oil” in the Index. (3)(9) bolts service.
  • Page 360 90,000 Miles (144 000 km) (Continued) Check fluid levels (or every 3 months, whichever occurs first). (1)(6) Evaporative Control System service (if equipped) (or Chassis lubrication service (or every 6 months, every 24 months, whichever occurs first). (3)(26) whichever occurs first). (12) Air brake service (or every 6 months, whichever Wheels and tires service.
  • Page 361 Exhaust brake service (if equipped). Check for 200,000 Miles (320 000 km) excessive spindle free play and smooth operation. Remove, disassemble, clean and inspect the air Lubricate ball joint cap. brake trailer supply valve (or every 2 years, or Air compressor dry element pleated paper air strainer every 7,200 hours, whichever occurs first).
  • Page 362 Footnotes (6) = Check fluid level in brake master cylinder, power steering pump, axle, transmission and hydraulic spring = The U.S. Environmental Protection Agency or the parking brake pump (if equipped). A low fluid level in California Air Resources Board has determined that the the brake master cylinder can indicate worn brake failure to perform this maintenance item will not nullify linings and should be checked accordingly.
  • Page 363 (10) = Check clutch pedal for free travel. Press pedal (13) = Check steering system: by hand until resistance is felt. Free travel should be Look for damaged, loose or missing parts. Also look maintained at 1.5 to 2 inches (38 to 51 mm) measured for parts showing signs of wear or lack of lubrication.
  • Page 364 (15) = Adjust tire pressures as indicated on the GVW (20) = With the engine off and below normal operating Rating label for optimum tire life. See “Tires” in the temperature, check to see that the thermostatically Index for further details. Check tires for excessive or controlled engine cooling fan can be rotated by hand on abnormal wear or damage.
  • Page 365 (26) = Evaporative Control System Service (32) = Inspect Electronic Vacuum Regulator Valve (if equipped): Check all fuel and vapor lines and hoses (EVRV) filter for excessive contamination or plugging. for proper connections and correct routing (or every If needed, clean filter with solution of soap and water, 24 months, whichever occurs first).
  • Page 366 (39) = Air brake service: Remove, disassemble, clean and inspect the safety valve, standard brake chamber, quick release valve, Inspect brake lines and hoses for proper hook quick release/double check valve combination, binding, leaks, cracks, chafing, etc. Inspect drum parking brake control valve, double check valve, brake linings for wear or cracks.

  • Page 367: At Each Fuel Fill

    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 which if necessary. See “Engine Oil” in the Index for should be performed at the intervals specified to help further details.

  • Page 368: At Least Twice A Year

    At Least Twice a Year Engine Air Cleaner Filter Restriction Indicator Check Restraint System Check Your vehicle has an indicator located on the air cleaner Make sure the safety belt reminder light (if equipped) in the engine compartment that lets you know when the and all your belts, buckles, latch plates, retractors and air cleaner filter is dirty and needs to be changed.
  • Page 369 Body Lubrication Service Starter Switch Check Lubricate all exposed surfaces such as door checks, door lock bolts, lock strike plates, door latches and dovetail CAUTION: bumper wedges. Where oil holes are provided a dripless oil can be used. The seat adjusters, seat track, door weatherstrips and rubber cap bumpers should also be When you are doing this check, the vehicle could lubricated.
  • Page 370 Automatic Transmission Shift Indicator Check Engine Cooling System Service Check that the indicator points to the gear chosen. Inspect the hoses and have them replaced if they are cracked, swollen or deteriorated. Inspect all pipes, Steering Check fittings and clamps; replace as needed. Clean the outside of the radiator and air conditioning condenser.
  • Page 371 Defroster Check Glass, Mirrors, Lamps and/or Reflectors Condition Check Move the control to the defrost symbol and the fan to HI or the high symbol. Then check the airflow from the Look for broken, scratched, dirty or damaged glass, ducts at the inside base of the windshield. mirrors, lamps or reflectors that could reduce the view or visibility or cause injury.
  • Page 372 Fluid Leaks Check At Least Once a Year Check for fuel, coolant, oil or other fluid leaks by Key Lock Cylinders Service looking at the surface beneath the vehicle after it has been parked for awhile. Lubricate the key lock cylinders with the lubricant specified in Part C.
  • Page 373 Part C: Recommended Fluids and USAGE FLUID/LUBRICANT Lubricants Engine Coolant 50/50 mixture of clean, drinkable Fluids and lubricants identified below by name, (Gasoline water and use only DEX COOL part number or specification may be obtained from Engine & Coolant. See “Engine Coolant” in your dealer.
  • Page 374 USAGE FLUID/LUBRICANT USAGE FLUID/LUBRICANT Exhaust Brake High Temperature Grease Automatic See the Allison Transmission Ball Joint Cap (GM Part No. U.S. 1051344, in Transmission Operator’s Manual for correct Lubricant Canada 903037, or equivalent) or transmission fluid. NLGI #3 consistency. Chassis Chassis Lubricant Power Steering DEXRON...
  • Page 375 USAGE FLUID/LUBRICANT USAGE FLUID/LUBRICANT Front Wheel SAE 75W 90 Synthetic Propshafts and Wheel bearing lubricant meeting Bearings with Axle Lubricant for Medium Splines requirements of NLGI # 2, Oil Filled Hubs Duty Trucks (GM Part Category GC or GC No. U.S. 12345841, in (GM Part No.

  • Page 376: Maintenance Record

    Part D: Maintenance Record After the scheduled services are performed, enter the date, odometer reading and services performed on the maintenance record charts provided here. Any additional information from “Owner Checks and Services” can be added on the following record pages. Also, you should retain all maintenance receipts. Your owner information portfolio is a convenient place to store them.
  • Page 377 Maintenance Record ODOMETER DATE SERVICED BY MAINTENANCE PERFORMED READING 7-31...
  • Page 378 Maintenance Record ODOMETER DATE SERVICED BY MAINTENANCE PERFORMED READING 7-32...
  • Page 379 Maintenance Record ODOMETER DATE SERVICED BY MAINTENANCE PERFORMED READING 7-33...
  • Page 380 Maintenance Record ODOMETER DATE SERVICED BY MAINTENANCE PERFORMED READING 7-34...

  • Page 381: Section 8 Customer Assistance Information

    Section 8 Customer Assistance Information Here you will find out how to contact GMC if you need assistance. This section also tells you how to obtain service publications and how to report any safety defects. Customer Satisfaction Procedure Reporting Safety Defects to the...

  • Page 382: Customer Satisfaction Procedure

    Please have the Your satisfaction and goodwill are important to your following information available to give the Customer dealer and to GMC. Normally, any concerns with the Assistance Representative: sales transaction or the operation of your vehicle will be Vehicle Identification Number (This is available resolved by your dealer’s sales or service departments.

  • Page 383: Customer Assistance Offices

    GMC encourages customers to call the toll-free number Customer Communication Centre, 163-005 for assistance. If a U.S. customer wishes to write to 1908 Colonel Sam Drive GMC, the letter should be addressed to GMC’s Medium Oshawa, Ontario L1H 8P7 Duty Truck Customer Assistance Center. 1-800-263-3777 (English)

  • Page 384: Roadside Assistance Program

    Truck’s dealer services. If NHTSA receives similar complaints, it may open an Just dial GMC Roadside Assistance at 1-800-862-4389 investigation, and if it finds that a safety defect exists in to reach a qualified representative who can assist you in a group of vehicles, it may order a recall and remedy a repair or arrange a tow.

  • Page 385: Reporting Safety Defects To The Canadian Government

    Reporting Safety Defects to the Reporting Safety Defects to Canadian Government General Motors If you live in Canada, and you believe that your vehicle In addition to notifying NHTSA (or Transport Canada) has a safety defect, you should immediately notify in a situation like this, we certainly hope you’ll notify us.

  • Page 386: Service Publications Ordering Information

    SERVICE PUBLICATIONS ORDERING INFORMATION Service Manuals Owner’s Information Service Manuals have the diagnosis and repair Owner publications are written specifically for owners information on engines, transmission, axle, suspension, and intended to provide basic operational information brakes, electrical, steering, body, etc. about the vehicle.

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