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GMC T-Series 2007 Owner's Manual

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2007 GMC T-Series Owner Manual
Seats and Restraint Systems ...................... 21
............................................ 22
............................................ 28
Features and Controls ................................. 59
....................................................... 60
................................................ 62
.................................................... 93
........................................ 94
Instrument Panel .......................................... 97
...................................... 43
......................... 56
.................................... 61
....... 65
................... 100
................................... 114
.................................... 118
................................... 137
Driving Your Vehicle .................................. 147
..................................... 148
................................................. 182
Service and Appearance Care ................... 189
................................................. 191
...................................................... 195
............................................. 241
............................................ 242
..................................................... 254
M
......... 206
........................... 248
................................ 250
... 250
.............................. 251
.................................. 267
............................. 275
.................................. 276
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Summary of Contents for GMC T-Series 2007

  • Page 1: Table Of Contents

    2007 GMC T-Series Owner Manual Seats and Restraint Systems ...... 21 Driving Your Vehicle ........147 Front Seats ..........22 Your Driving, the Road, and Your Vehicle ........148 Safety Belts ..........28 Towing ..........182 Child Restraints ........43 Restraint System Check ......
  • Page 2 Capacities and Specifications ....285 Customer Assistance Information ..... 327 Normal Maintenance Customer Assistance and Information ..328 Replacement Parts ......288 Reporting Safety Defects ...... 336 Vehicle Data Recording and Privacy ..339 Maintenance Schedule ....... 291 Maintenance Schedule ......

  • Page 3: Emission Control Systems Warranty

    A French language copy of this manual can be obtained from your dealer/retailer or from: GENERAL MOTORS, GM, the GM Emblem, Helm, Incorporated GMC, and the GMC Truck Emblem are registered P.O. Box 07130 trademarks of General Motors Corporation. Detroit, MI 48207 This manual includes the latest information at the time it was printed.
  • Page 4 What Is Covered Federal Emission Control System Warranty The parts covered under the emission warranty are listed under the “Emission Warranty Parts List” Federal Warranty Coverage is as follows: later in this section. • Vehicles with a 8,500 GVWR or less equipped How to Determine the Applicable with a Light Duty Emission Control System Gasoline Engine...
  • Page 5 Federal Emission Defect Warranty also be eligible for Emission Performance Warranty coverage when all of the following GM warrants to the owner the following: three conditions are met: • The vehicle was designed, equipped, and built • The chassis has been maintained and so as to conform at the time of sale with operated in accordance with the instructions applicable regulations of the Federal...
  • Page 6 California Emission Control System Your Rights and Obligations (For Chassis Subject to California Warranty Exhaust Emission Standards) This section outlines the emission warranty that GM The Emission Control System Warranty on your provides for the chassis in accordance with the vehicle is issued in accordance with the California California Air Resources Board.
  • Page 7 California Emission Defect and Emission • For 7 years or 70,000 miles, whichever comes Performance Warranty Coverage first, vehicles with a GVWR of 14,000 lbs. or less: • For 3 years or 50,000 miles, whichever comes − If an emission related part listed in this first, vehicles with a GVWR of 14,000 lbs.
  • Page 8 Owner’s Warranty Responsibilities Emission Warranty Parts List As the vehicle owner, you are responsible for The emission parts listed here are covered under the performance of the scheduled maintenance the Emission Control System Warranty. The listed in your owner manual. GM recommends terms are explained previously in this section that you retain all maintenance receipts for under Federal Emission Control System Warranty...
  • Page 9 Powertrain Control System Powertrain Control Module (PCM) ** Anti-lock Brake System (ABS) Control Module ** Programmable Read Only Memory (PROM) Camshaft Position Actuator * Throttle Position Sensor Camshaft Position Actuator Valve Throttle Position Switch Coolant Level Sensor Vehicle Control Module (VCM) ** Data Link Connector Vehicle Speed Sensor Electronic Throttle Control (ETC) Motor...
  • Page 10 Fuel Management System Air Management System ® Common Rail Assembly (6.6L DURAMAX Air Cleaner Diesel) * Air Cleaner Diaphragm Isuzu Motor Common Rail Assembly (7.8L Isuzu Diesel) Air Cleaner Resonator Diesel Fuel Injection Pump * Air Cleaner Temperature Compensator Valve Diesel Fuel Injection Pump Timing Adjust Air Intake Ducts Diesel Fuel Injector Control Module –...
  • Page 11 Intake Manifold Gasket (7.8L Isuzu Diesel) * Ignition System Intake Manifold Heater Camshaft Position Sensor(s) Intake Manifold Tuning Valve Crankshaft Position Sensor(s) Intake Manifold Tuning Valve Relay Distributor Supercharger Assembly * Distributor Cap Throttle Body * (Replacement Only) Distributor Pick Up Coil Throttle Body Heater Distributor Rotor Throttle Closing Dashpot...
  • Page 12 Catalytic Converter System Positive Crankcase Ventilation (PCV) System Catalytic Converter(s) and Muffler if attached as Oil Filler Cap assembly ** PCV Filter Diesel Particulate Filter assembly PCV Oil Separator (7.8L Isuzu Diesel) PCV Valve Exhaust Manifold Exhaust Gas Recirculation (EGR) System (C/K Trucks <...
  • Page 13 Evaporative Emission Control System Energy Storage Control Module * (Gasoline Engines) IsuzuLAN (CAN) Communications Circuit Canister Hood Ajar Switch and Circuit Canister Purge Solenoid Valve Hybrid Control Module ** Canister Vent Solenoid SGCM Coolant Circuit (fan and fan relay Fuel Feed and Return Pipes and Hoses and pump) Fuel Filler Cap Starter Generator Control Module *...
  • Page 14 Replacement Parts Fittings Gaskets The emission control systems of your chassis were designed, built, and tested using genuine GM Grommets parts* and the chassis is certified as being in Hoses conformity with applicable federal and California Housings emission requirements. Accordingly, it is recommended that any replacement parts used Mounting Hardware for maintenance or for the repair of emission...
  • Page 15 Maintenance and Repairs If, in an emergency situation, it is necessary to have repairs performed by other than a GM dealer Maintenance and repairs can be performed by and you believe the repairs are covered by any qualified service outlet; however, warranty emission warranties, take the replaced parts and repairs must be performed by an authorized your receipt to a GM dealer for reimbursement...
  • Page 16 Claims Procedure In the event a warranty matter is not handled to your satisfaction, refer to the “Customer As with the other warranties covered in the Satisfaction Procedure” in the warranty booklet separate warranty booklet, take your chassis to under “Owner Assistance”. any authorized GM dealer facility to obtain service For further information or to report violations of the under the emission warranty.

  • Page 17: How To Use This Manual

    How to Use This Manual CAUTION: Many people read the owner manual from beginning to end when they first receive their new vehicle to learn about the vehicle’s features These mean there is something that could and controls. Pictures and words work together to hurt you or other people.

  • Page 18: Vehicle Symbols

    Vehicle Damage Warnings Vehicle Symbols You will also find notices in this manual. The vehicle has components and labels that use symbols instead of text. Symbols are shown Notice: These mean there is something that along with the text describing the operation or could damage your vehicle.
  • Page 19 These are some examples of symbols that may be found on the vehicle:...
  • Page 20 ✍ NOTES...

  • Page 21: Seats And Restraint Systems

    Section 1 Seats and Restraint Systems Front Seats ........... 22 Child Restraints ..........43 Manual Seats ..........22 Older Children ..........43 Manual Lumbar ........... 23 Infants and Young Children ......46 Reclining Seatbacks ........24 Child Restraint Systems ......50 Air Suspension Seats ........

  • Page 22: Front Seats

    Front Seats CAUTION: Manual Seats You can lose control of the vehicle if you Your vehicle has bucket try to adjust a manual driver’s seat while seats. You can adjust the vehicle is moving. The sudden the driver’s seat movement could startle and confuse you, with these levers or make you push a pedal when you do located at the front...

  • Page 23: Manual Lumbar

    Manual Lumbar Slide lever (A) to the left to unlock the seat and slide the seat to where you want it. Release the lever and try to move the seat with your body to make sure the seat is locked into place. To adjust the lower seat cushion forward or backward, pull up on lever (B) and slide the cushion to where you want it.

  • Page 24: Reclining Seatbacks

    Reclining Seatbacks CAUTION: You can lose control of the vehicle if you try to adjust a manual driver’s seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do not want to.
  • Page 25 CAUTION: Sitting in a reclined position when your vehicle is in motion can be dangerous. Even if you buckle up, your safety belts cannot do their job when you are reclined like this. The shoulder belt cannot do its job. In a crash, you could go into it, receiving neck or other injuries.

  • Page 26: Air Suspension Seats

    Air Suspension Seats Isolator Lock Lever Your vehicle may have an air suspension seat. The lever is located on There are two ways you can adjust the seat. the inboard side of the driver’s seat. Height Adjustment The height adjustment is controlled by the air suspension valve.

  • Page 27: Center Seat

    Center Seat CAUTION: Your vehicle may have a center seat. To fold the seatback down, pull the lever, located If the seatback is not locked, it could on the right side of the seat. move forward in a sudden stop or crash. Then lower the seatback forward and push down That could cause injury to the person firmly to lock in position.

  • Page 28: Safety Belts

    Safety Belts CAUTION: Safety Belts: They Are for Everyone It is extremely dangerous to ride in a This part of the manual tells you how to use cargo area, inside or outside of a vehicle. safety belts properly. It also tells you some things In a collision, people riding in these areas you should not do with safety belts.
  • Page 29 Why Safety Belts Work In most states and in all Canadian provinces, the law says to wear safety belts. Here is why: They work. Aren’t safety belts for kids? You never know if you will be in a crash. If you Yes.
  • Page 30 If the vehicle hits something, it stops – right then. Then something will stop them. It could be the But nothing stops the people. They keep moving. windshield.
  • Page 31 Or it could be the instrument panel. With safety belts, you slow down as the vehicle does. You get more time to stop. Now, what if you and your passengers were to give that big vehicle a chance to deal with You stop over more distance, and your strongest the force of the impact, instead of you? bones take the forces.

  • Page 32: Questions And Answers About Safety Belts

    Questions and Answers About Most accidents occur within 25 miles (40 km) of home. And the greatest number of serious Safety Belts injuries and deaths occur at speeds of less than 40 mph (65 km/h). Will I be trapped in the vehicle after an Safety belts are for everyone.

  • Page 33: Driver Position

    Driver Position The lap-shoulder belt may lock if you pull the belt across you very quickly. If this happens, Lap-Shoulder Belt let the belt go back slightly to unlock it. Then pull the belt across you more slowly. The driver has a lap-shoulder belt. Here is how to There is a clip on the lap portion of the wear it properly.
  • Page 34 6. To make the lap part tight, pull up on the shoulder belt. It may be necessary to pull stitching on the The lap part of the belt should be worn low and safety belt through the latch plate to fully snug on the hips, just touching the thighs.
  • Page 35 What is wrong with this? CAUTION: You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit against your body. The shoulder belt is too loose. It will not give nearly as much protection this way.
  • Page 36 What is wrong with this? CAUTION: You can be seriously hurt if your lap belt is too loose. In a crash, you could slide under the lap belt and apply force at your abdomen. This could cause serious or even fatal injuries. The lap belt should be worn low and snug on the hips, just touching the thighs.
  • Page 37 What is wrong with this? CAUTION: You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not at the pelvic bones. This could cause serious internal injuries.
  • Page 38 What is wrong with this? CAUTION: You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the ribs, which are not as strong as shoulder bones.
  • Page 39 What is wrong with this? CAUTION: You can be seriously injured by a twisted belt. In a crash, you would not have the full width of the belt to spread impact forces. If a belt is twisted, make it straight so it can work properly, or ask your dealer/retailer to fix it.

  • Page 40: Shoulder Belt Height Adjustment

    Shoulder Belt Height Adjustment Before you begin to drive, move the shoulder belt height adjuster to the height that is right for you. Adjust the height so that the shoulder portion of the belt is centered on your shoulder. The belt should be away from your face and neck, but not falling off your shoulder.

  • Page 41: Safety Belt Use During Pregnancy

    Safety Belt Use During Pregnancy The best way to protect the fetus is to protect the mother. When a safety belt is worn properly, Safety belts work for everyone, including pregnant it is more likely that the fetus will not be hurt women.

  • Page 42: Center Passenger Position

    Center Passenger Position Lap Belt If your vehicle has a center seat, someone can sit in the center position. To make the belt shorter, pull its free end as shown until the belt is snug. Buckle, position and release it the same way as the lap part of a lap-shoulder belt.

  • Page 43: Child Restraints

    Safety Belt Extender Child Restraints If the vehicle’s safety belt will fasten around you, Older Children you should use it. But if a safety belt is not long enough, your dealer/retailer will order you an extender. When you go in to order it, take the heaviest coat you will wear, so the extender will be long enough for you.
  • Page 44 What is the proper way to wear safety belts? If possible, an older child should wear a lap-shoulder belt and get the additional restraint a shoulder belt can provide. The shoulder belt should not cross the face or neck. The lap belt should fit snugly below the hips, just touching the top of the thighs.
  • Page 45 What if a child is wearing a lap-shoulder belt, but the child is so small that the CAUTION: shoulder belt is very close to the child’s face or neck? Never do this. Move the child toward the center of the Here a child is sitting in a seat that has a vehicle, but be sure that the shoulder belt still lap-shoulder belt, but the shoulder part is...

  • Page 46: Infants And Young Children

    Infants and Young Children CAUTION: Everyone in a vehicle needs protection! This includes infants and all other children. Neither the distance traveled nor the age and Children can be seriously injured or size of the traveler changes the need, for strangled if a shoulder belt is wrapped everyone, to use safety restraints.
  • Page 47 CAUTION: People should never hold a baby in their arms while riding in a vehicle. A baby does not weigh much — until a crash. During a crash a baby will become so heavy it is not possible to hold it. For example, in a crash at only 25 mph (40 km/h), a 12 lb (5.5 kg) baby will suddenly become a 240 lb (110 kg) force on a person’s arms.
  • Page 48 What are the different types of add-on child restraints? CAUTION: Add-on child restraints, which are purchased by the vehicle’s owner, are available in four basic Newborn infants need complete support, types. Selection of a particular restraint should including support for the head and neck. take into consideration not only the child’s This is necessary because a newborn weight, height, and age but also whether or not...
  • Page 49 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 50: Child Restraint Systems

    Child Restraint Systems A rear-facing infant seat (B) provides restraint with the seating surface against the back of the An infant car bed (A), a special bed made for use infant. The harness system holds the infant in a motor vehicle, is an infant restraint system in place and, in a crash, acts to keep the infant designed to restrain or position a child on a positioned in the restraint.
  • Page 51 A forward-facing child seat (C-E) provides restraint A booster seat (F-G) is a child restraint designed for the child’s body with the harness and also to improve the fit of the vehicle’s safety belt sometimes with surfaces such as T-shaped system.
  • Page 52 Securing an Add-on Child Restraint in How Should I Use a Child Restraint? the Vehicle 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 CAUTION: system is a permanent part of the motor vehicle.
  • Page 53 When securing an add-on child restraint, refer to are attached to a flat pad which rests low against the instructions that come with the restraint which the child’s body. A shelf- or armrest-type shield has may be on the restraint itself or in a booklet, or both, straps that are attached to a wide, shelf-like shield and to this manual.

  • Page 54: Lower Anchors And Tethers For Children (Latch)

    Lower Anchors and Tethers for In Canada, the law requires that forward-facing child restraints have a top tether, and that Children (LATCH) the tether be attached. Some child restraints have a LATCH system. As Your vehicle does not have lower anchors or top part of the LATCH system, your child restraint may tether anchors to secure a child restraint with have lower attachments and/or a top tether.
  • Page 55 Securing a Child Restraint in Your the restraint say that the top tether must be anchored. See Lower Anchors and Tethers for Medium Duty Vehicle Children (LATCH) on page 54 if the child restraint has one. We know securing a child can present real problems in a medium-duty vehicle like yours.

  • Page 56: Restraint System Check

    To remove the child restraint, just unbuckle the vehicle’s safety belt. It will be ready to work for an adult or larger child passenger. Restraint System Check Checking the Restraint Systems Now and then, make sure the safety belt reminder light and all your belts, buckles, latch plates, retractors, and anchorages are working properly.

  • Page 57: Replacing Restraint System Parts After A Crash

    Replacing Restraint System Parts If you have had a crash, do you need new belts? After a Crash After a very minor collision, nothing may be necessary. But if the belts were stretched, as they would be if worn during a more severe crash, then you need new parts.
  • Page 58 ✍ NOTES...

  • Page 59: Features And Controls

    Section 2 Features and Controls Keys .............. 60 Automatic Transmission Operation ....76 Automatic Transmission Third-Gear Hold ..77 Doors and Locks .......... 61 Manual Transmission Operation ....77 Door Locks ..........61 Power Take-Off (PTO) ......... 79 Windows ............62 Parking ............

  • Page 60: Keys

    Keys CAUTION: Leaving children in a vehicle with the ignition key is dangerous for many reasons, children or others could be badly injured or even killed. They could operate the power windows or other controls or even make the vehicle move. The windows will function with the keys in the ignition and they could be seriously injured or killed if caught in the path of a closing...

  • Page 61: Doors And Locks

    Doors and Locks CAUTION: (Continued) Door Locks • Outsiders can easily enter through an unlocked door when you slow down CAUTION: or stop your vehicle. Locking your doors can help prevent this from happening. Unlocked doors can be dangerous. • Passengers, especially children, can A manual door lock is located above each door easily open the doors and fall out of...

  • Page 62: Windows

    When the doors are locked, they can’t be opened using the inside handles until the manual lock is pulled out. Windows CAUTION: Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke.

  • Page 63: Power Windows

    Power Windows Power Window Lock Switch Pressing the power window lock switch once locks If your vehicle has the passenger side window and prevents it from power windows, the opening or closing. Pressing the switch a second switches for both time unlocks the passenger side window.

  • Page 64: Passenger Side Door Glass

    Passenger Side Door Glass CAUTION: Never open the passenger side door glass with the ignition on. You can be injured if the window linkage moves. Open this glass only with the ignition off. To open the window cover, pull on the latch at the rear of the window and swing the window cover open.

  • Page 65: Starting And Operating Your Vehicle

    Starting and Operating Your • Use the lowest gear you can when you start a loaded vehicle in motion and Vehicle when going up hills to avoid overloading the engine. New Vehicle Break-In • Check and adjust engine and transmission fluid levels often and be sure tires are Notice: Your vehicle does not need an properly inflated for the load you are...

  • Page 66: Ignition Positions

    Ignition Positions Key In the Ignition Never leave your vehicle with the keys inside, as it Use your ignition key to is an easy target for joy riders or thieves. If you start your vehicle. You leave the key in the ignition and park your vehicle, a can turn the ignition chime will sound, when you open the driver’s door.

  • Page 67: Manual Transmission

    Manual Transmission When your engine is cold, let it run for a few minutes before you move your vehicle. This lets Move the shift lever to NEUTRAL (N) and hold the oil pressure build up. Your engine will sound louder clutch pedal to the floor while starting the engine.
  • Page 68 If Your Engine Will Not Start Be sure you have the right oil for your engine, and that you have changed the oil at the proper If you are not out of fuel, and your engine will not times. If you use the wrong oil, your engine may be start, do this: harder to start.

  • Page 69: Engine Alarm And Automatic Shutdown

    Engine Alarm and Automatic See Low Coolant Warning Light on page 129 for more information. Shutdown The alarm means that your engine will shut down. For vehicle with this feature, the check gages light See Engine Shutdown Warning Light on will come on if the system senses high engine page 132 for more information.

  • Page 70: High Idle System

    High Idle System The manual high idle feature is activated by pressing the button on the instrument panel. Manual High Idle System When the button is pressed again, or any of the previous conditions are not met, manual high idle will be deactivated. If your vehicle has this feature, the manual high Exhaust Restrictor...

  • Page 71: Engine Checks Before Operating

    Engine Checks Before Operating On vehicles equipped with a diesel engine exhaust brake, the exhaust brake switch must When you have started your engine, let it run for be on. See Diesel Engine Exhaust Brake on 20 to 30 seconds before you put a load on the page 74 for more information.
  • Page 72 • During this warm-up period, check your warning The charging system light should come on lights and gages: when the ignition key is turned to ON or START and should go out when the engine is running • If oil pressure does not begin to rise within above idle.

  • Page 73: Engine Coolant Heater

    Once started, the engine should be placed under load to allow the engine coolant CAUTION: temperature to reach 150°F (66°C) before shutting off the engine. Plugging the cord into an ungrounded Engine Coolant Heater outlet could cause an electrical shock. Also, the wrong kind of extension cord Your vehicle may be equipped with this feature.

  • Page 74: Diesel Engine Exhaust Brake

    Diesel Engine Exhaust Brake There is an indicator light on the instrument panel similar to the symbol on the switch, that will The exhaust brake is used to help slow the come on when the exhaust brake is active. vehicle and may assist the vehicle’s foundation See Exhaust Brake Indicator Light on page 133 brakes.

  • Page 75: Two-Speed Rear Axle Electric Shift Control

    Two-Speed Rear Axle Electric Shift To operate off-road or under a heavy load, shift into low range while the vehicle is standing still and Control then operate the transmission normally. The switch is located on the center console On the highway, with the rear axle in low range between the driver’s and passenger’s seats.

  • Page 76: Automatic Transmission Operation

    Automatic Transmission Operation CAUTION: GM builds vehicles with five and six-speed automatic transmissions. This part of the manual covers the basics of these. With Shifting into a drive gear while the engine ® these transmissions, you will find an Allison is running at high speed is dangerous.

  • Page 77: Automatic Transmission Third-Gear Hold

    The overdrive defeat This feature is used for certain load and traffic ® button is located in the conditions or when plowing snow. See the Allison instrument panel to Transmission Operator’s Manual in your vehicle the right of the steering for more information about this.
  • Page 78 ® ® Six-Speed Transmission Eaton Fuller Nine and Ten-Speed Non-Synchronized Manual The transmission has gears that automatically Transmissions synchronize when you shift up or down. Choose the gear which will maintain the road speed If your vehicle has one of these non-synchronized you want while keeping the engine above transmissions, it is naturally somewhat two-thirds of the governed speed.

  • Page 79: Power Take-Off (Pto)

    Double-Clutching Notice: Using the clutch brake for shifting into any gear other than FIRST (1) or You must use the double-clutching method when REVERSE (R) may cause premature wear of you shift an unsynchronized gear set. Disengage the clutch brake and make gear shift effort the clutch, shift to neutral and engage the clutch.

  • Page 80: Parking

    Parking a Vehicle With the Two-Speed A PTO is a gearbox or mechanical device used to transmit mechanical power from the powertrain, Rear Axle through gears or a transmission, to another 1. With the engine running, shift the two-speed mechanical or hydraulic device. Before using a rear axle into low.

  • Page 81: Parking Brake (With Hydraulic Brakes)

    Parking Brake (With Hydraulic Brakes) If your vehicle has hydraulic brakes, it has a parking brake lever. The lever is located in the center console. Your vehicle may also be equipped with an automatic transmission which has a center console shift lever.

  • Page 82: Parking Brake (With Air Brakes)

    Parking Brake (With Air Brakes) To release the parking brake, first push down the regular brake pedal. Then, while pressing in the release button, push the parking brake lever all the If your vehicle has air way down and shift the transmission to NEUTRAL. brakes, you will have The parking brake light will stay on if the parking this parking brake.
  • Page 83 Vehicles built for use as tractors or towing To charge a trailer’s air brake system do the vehicles have two air brake controls. They look following: like this: 1. Move your vehicle into the proper position. 2. Apply the parking brake by pulling the yellow parking brake knob out.
  • Page 84 For driving with a trailer, the yellow and red, if If the air pressure drops below 60 to 70 psi equipped, knobs must be pushed in. When you are (413 to 482 kPa), the primary brake light and not pulling a trailer, the red trailer air supply warning buzzer will come on.

  • Page 85: Parking Brake Burnish Procedure

    Parking Brake Burnish Procedure Air Suspension All vehicles which have hydraulic brakes will have a Your vehicle may have the Hendrickson parking brake. It is recommended that the parking HAS Series single-axle air suspension which brake be burnished as part of the new vehicle is designed for a single-axle on-highway use.

  • Page 86: Parking Over Things That Burn

    Press the bottom of the switch to deflate the air suspension and lower the deck height. Press CAUTION: the top of the switch to return the suspension to normal deck height. Things that can burn could touch hot An indicator light will come on and stay on exhaust parts under your vehicle and whenever the switch is in the dumped position.

  • Page 87: Diesel Particulate Filter

    Diesel Particulate Filter CAUTION: (Continued) Your vehicle has a Diesel Particulate Filter (DPF) as part of the exhaust system to reduce vehicle You might have exhaust coming in if: emissions. The DPF requires a unique exhaust • The exhaust system sounds strange tailpipe with an exhaust cooler.
  • Page 88 The DPF will regenerate (self-clean) itself as part of normal operation. During regeneration, the CAUTION: green DPF indicator is lit and you will notice a difference in engine noise and engine speed, During DPF regeneration, the exhaust but this is normal. The Engine Control Module (ECM) controls this function based on several system and exhaust gases are very hot.
  • Page 89 To clean the filter, either drive the vehicle above on, stop the idling and drive the vehicle 30 mph (50 km/h) to activate the automatic as described previously to clean the regeneration or stop the vehicle and perform filter. Continued idling with the warning the manual regeneration procedure.
  • Page 90 Manual Regeneration Procedure completed, as indicated by the green DPF indicator going off, in a single operation, automatic regeneration might not be allowed until the vehicle is stopped and manual regeneration is performed CAUTION: until completed. 1. Check engine oil and engine coolant levels to During DPF regeneration, the exhaust be sure they are at proper operating levels.
  • Page 91 7. If the vehicle has Power Take Off (PTO), turn Under certain operating conditions, manual the PTO off. See Power Take-Off (PTO) on regeneration might not be able to be performed, page 79. even if the soot level in the DPF requires regeneration.

  • Page 92: Running The Engine While Parked

    Running the Engine While Parked CAUTION: It is better not to park with the engine running. But if you ever have to, here are some things to know. It can be dangerous to get out of your vehicle if the automatic transmission shift lever is not fully in PARK (P) with the CAUTION: parking brake firmly set.

  • Page 93: Mirrors

    Mirrors Outside Convex Mirrors Outside Manual Mirrors CAUTION: Adjust the outside rearview mirrors so you can see a little of the side of your vehicle, and the area A convex mirror can make things (like beside your vehicle from a comfortable driving other vehicles) look farther away than position.

  • Page 94: Storage Areas

    Outside Heated Mirrors Storage Areas Overhead Storage For vehicles with this feature, the switch is located on the instrument panel. Press the switch to turn the outside heated rearview mirrors on. The switch indicator light will come on and stay on whenever the outside heated rearview mirrors are activated.

  • Page 95: Center Console Storage Area

    Center Seat Storage A storage compartment is located behind the To access the compartment, you must first pull seatback in the center seat. down on the handle located on the passenger side to fold the seat all the way forward. To open, squeeze both sides of the latch.
  • Page 96 ✍ NOTES...

  • Page 97: Instrument Panel

    Section 3 Instrument Panel Instrument Panel Overview ......100 Climate Controls ......... 114 Hazard Warning Flashers ......102 Climate Control System ......114 Other Warning Devices ......102 Outlet Adjustment ........116 Horn ............102 Passenger Compartment Air Filter ..... 116 Tilt Wheel ..........
  • Page 98 Section 3 Instrument Panel Engine Coolant Temperature Gage .... 128 Check Gages Warning Light ...... 134 Low Coolant Warning Light ....... 129 Fuel Gage ..........135 Wait to Start Indicator ....... 129 Water in Fuel Warning Light ...... 135 Malfunction Indicator Lamp ......130 Diesel Particulate Filter Warning Light ..
  • Page 99 ✍ NOTES...

  • Page 100: Instrument Panel Overview

    Instrument Panel Overview...
  • Page 101 The main components of your instrument panel are the following: A. Rear Reading Lamp Button. See Rear Reading K. Front Panel Release. See Lifting the Front Lamps on page 113. Panel on page 247. B. Cruise Control Button. See Cruise Control on L.

  • Page 102: Hazard Warning Flashers

    S. Cigarette Lighter. See Ashtray(s) and Cigarette When the hazard warning flashers are on, Lighter on page 114. the turn signals will not work. The hazard warning flashers will not flash if the brakes are applied. T. Traction Control Button. See Traction Control System (TCS) on page 157.

  • Page 103: Turn Signal/Multifunction Lever

    Turn Signal/Multifunction Lever To tilt the column, hold the steering wheel and pull the lever on the left side of the column to unlock the steering column. The multifunction lever, located on the left side of Move the steering the steering column, includes the following: wheel to a comfortable •...

  • Page 104: Turn And Lane-Change Signals

    Turn and Lane-Change Signals If a bulb is burned out, replace it to help avoid an accident. If the arrows don’t go on at all when The turn signals are controlled by the multifunction you signal a turn, check for burned-out bulbs and lever.

  • Page 105: Flash-To-Pass

    Flash-to-Pass Windshield Wipers This feature lets you use the high-beam headlamps to signal a driver in front of you that you want to pass. It works even if the headlamps are in the automatic position. To use this feature, pull the multifunction lever toward you, then release it.

  • Page 106: Windshield Washer

    Windshield Washer : Turn this band on the windshield wiper lever to set the delay time between wipes. The closer To wash the window, to the top of the lever, the shorter the delay. you must have the (LO): Turn the knob to this setting to operate windshield wipers on.

  • Page 107: Cruise Control

    Cruise Control CAUTION: With cruise control, the vehicle can maintain a speed of about 25 mph (40 km/h) or more without keeping your foot on the accelerator. Cruise Cruise control can be dangerous where control does not work at speeds below about you cannot drive safely at a steady speed.
  • Page 108 Setting Cruise Control CAUTION: This button is located at the lower left side of the If you leave your cruise control on when instrument panel. It you are not using cruise, you might hit a turns the cruise control on and off. button and go into cruise when you do not want to.
  • Page 109 Resuming a Set Speed • Move the band on the multifunction lever from on to the +RES position. Hold it there until Suppose you set the cruise control at a desired the vehicle reaches the speed desired, and speed and then you apply the brake or the clutch. then release the band.

  • Page 110: Headlamps

    Using Cruise Control on Hills Erasing Speed Memory How well the cruise control works on hills depends When the ignition is turned off, the cruise control upon your speed, load, and the steepness of the set speed memory is erased. hills.

  • Page 111: Headlamps On Reminder

    The DRL system will make the headlamps come (Headlamps): Turn the band to this position on at reduced brightness when the following to turn on all the headlamps, together with conditions are met: the previously listed lamps and lights. • The ignition is on.

  • Page 112: Marker Lamps

    Instrument Panel Brightness To idle your vehicle with the DRL off, set the parking brake. The DRL will stay off until the parking brake is released. If your vehicle has this feature, the knob is As with any vehicle, you should turn on the located on the lower regular headlamp system when needed.

  • Page 113: Rear Reading Lamps

    Rear Reading Lamps Auxiliary Power Jacks Your vehicle may have If your vehicle has these a rear lamp button power jacks, they are on which is located on the the console to the right lower left side of the of the driver’s seat. instrument panel.

  • Page 114: Climate Controls

    Ashtray(s) and Cigarette Lighter Climate Controls Your vehicle may have an ashtray and a cigarette Climate Control System lighter located in the center floor console. To open the removable ashtray, flip open the top. With this climate control system, you can control Notice: If you put papers, pins, or other the heating, cooling, and ventilation for your flammable items in the ashtray, hot cigarettes...
  • Page 115 To change the current mode, press one of the A/C (Air Conditioning): If your vehicle has this following buttons: feature, you can use your air conditioner by selecting one of the mode buttons, selecting (Vent): This mode directs air to the instrument a fan speed and pressing the A/C button.

  • Page 116: Outlet Adjustment

    Defogging and Defrosting Outlet Adjustment There are two modes to clear fog or frost from The air outlets are located in the center and on the your windshield. Press the defog button to sides of your instrument panel. See Instrument clear the windows of fog or moisture and warm Panel Overview on page 100.
  • Page 117 The passenger compartment air filter can be 2. Pull the tab and accessed from the outside of the vehicle on the remove the filter. front passenger side. It is concealed by the front access panel. Pull the latch inside the cab on the driver’s side of the vehicle to open the front panel.

  • Page 118: Warning Lights, Gages, And Indicators

    Warning Lights, Gages, and Gages can indicate when there may be or is a problem with one of your vehicle’s functions. Indicators Often gages and warning lights work together to let you know when there is a problem with This part describes the warning lights and gages your vehicle.

  • Page 119: Instrument Panel Cluster

    Instrument Panel Cluster Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, about how much fuel is left and many other things you will need to drive safely and economically.

  • Page 120: Speedometer And Odometer

    Speedometer and Odometer To display the odometer reading with the ignition off, press the reset button. Your speedometer lets you see your speed in The hourmeter gage is accessed through the trip both miles per hour (mph) and kilometers per odometer, for more information see Hourmeter hour (km/h).

  • Page 121: Engine Speed Limiter

    Engine Speed Limiter Safety Belt Reminder Light All engines have electronic engine speed limiting When the key is turned to ON or START, a light to 2,550 rpm. will come on for several seconds to remind people to fasten their safety belts. Engine Road Speed Governor The safety belt light This system controls maximum vehicle speed...

  • Page 122: Charging System Light

    Charging System Light Voltmeter Gage The charging system When your engine is light may be located in running, the voltmeter the instrument panel gage shows the cluster, or with the charging system auxiliary warning lights voltage. in the center of the instrument panel.

  • Page 123: Service Transmission Warning Light

    You can only drive a short time on the battery. If this light comes on while you are driving, do not Be sure to shut off the radio, the fan or any use the transmission shift control or you may lose unnecessary accessories and have the system forward gears.

  • Page 124: Range Inhibit Warning Indicator

    Range Inhibit Warning Indicator Brake System Warning Light Your vehicle has either hydraulic or air brakes. Your vehicle may have Each system has different warning lights. this light. Hydraulic Brake System Warning Lights Vehicles with hydraulic brake systems have two brake system warning lights on the instrument panel.
  • Page 125 The brake system warning light may come on, Both of these lights should come on briefly every and the warning tone may sound, when you time you start your engine. If they do not come are turning and braking at the same time. This is on then, have them fixed so they will be ready to normal.
  • Page 126 Parking Brake Warning Light When the warning light comes on while you are driving, you should drive only as far as the nearest This light will also come on when you set the point of safety and then stop the vehicle. parking brake.

  • Page 127: Antilock Brake System Warning Light

    Antilock Brake System Trailer Antilock Brake System Warning Light Warning Light This light will come on If your vehicle is briefly when you start connected to a trailer the engine, then it with antilock brakes, this will turn off. This light should come on is normal.

  • Page 128: Traction Control System Active Light

    Traction Control System Engine Coolant Temperature Gage Active Light If your vehicle has the Traction Control System (TCS), this light will come on when the system is limiting wheel spin. United States Canada Slippery road conditions may exist if the TCS active light comes on, so adjust your driving This gage shows the engine coolant temperature.

  • Page 129: Low Coolant Warning Light

    Low Coolant Warning Light Wait to Start Indicator You have a low coolant This indicator, in the warning light. If this light center of the instrument comes on, your system panel, will come on is low on coolant and the when the glow plugs engine may overheat.

  • Page 130: Malfunction Indicator Lamp

    Malfunction Indicator Lamp engine might not run as smoothly. This could lead to costly repairs that might not be Service Engine Soon Light covered by your warranty. Oil Pressure Gage If this light comes on or flashes while you are driving, two things may happen.

  • Page 131: Low Oil Level Light

    Low Oil Level Light A reading in the low pressure zone may be caused by a dangerously low oil level or other problem. See Engine Oil on page 206 and This light comes Scheduled Maintenance on page 295 for more on briefly when the information.

  • Page 132: Change Engine Oil Light

    Change Engine Oil Light Engine Overspeed Warning Light Your vehicle may have a If your vehicle has this change engine oil light. light, it will come on if your engine is operating at too many revolutions per minute (rpm). It should come on briefly as a bulb check when It will also come on for a moment as a check you start the engine.

  • Page 133: Exhaust Brake Indicator Light

    Exhaust Brake Indicator Light The light will come on momentarily during starting. If the light fails to come on, have it repaired as soon as possible so you will be aware when For vehicles with an the lock system is in use. exhaust brake, this light is located above the Reduced Engine Power Light...

  • Page 134: Highbeam On Light

    Highbeam On Light When it begins to get dark, the DRL indicator light is a reminder to turn on your headlamps. This light comes on Check Gages Warning Light when the high-beam headlamps are in use. This light will come on as you’re starting the engine, just as a check.

  • Page 135: Fuel Gage

    Fuel Gage Here are four concerns of some operators. None of these shows a problem with your fuel gage: Your fuel gage is • The gage moves a little when you turn a located on the right corner or speed up. side of your instrument •...

  • Page 136: Diesel Particulate Filter Warning Light

    Diesel Particulate Filter Air Pressure Gage Warning Light If your vehicle has air brakes, this gage shows Your vehicle may have the air pressure for two Diesel Particulate both your front and Filter (DPF) Warning rear brake systems. lights. These lights will come on briefly when the ignition is turned to ON.

  • Page 137: Audio System(S)

    Hourmeter Gage Audio System(s) To access the engine hourmeter gage press the Determine which radio your vehicle has and then trip odometer button three times. read the pages following to familiarize yourself with its features. The instrument panel cluster displays the accumulated engine run time hours using the reconfigurable odometer display.

  • Page 138: Setting The Time

    Setting the Time While your vehicle is parked: • Familiarize yourself with all of its controls. AM-FM Radio • Familiarize yourself with its operation. Press and hold the DISP button. Press the up • Set up your audio system by presetting your tuning button until the correct hour displays.

  • Page 139: Am-Fm Radio

    AM-FM Radio Finding a Station BND (Band): Press this button to switch between FM or AM. The display shows the selection. (Tune): Press the down arrow to go to the previous radio frequency. Press the arrow to go to the next radio frequency. To seek stations, press and hold either the Playing the Radio down...
  • Page 140 PS AS (Preset Scan/Auto Scan): Press this To automatically store the preset pushbuttons, button for less than two seconds to scan preset perform the following steps: stations. The radio goes to the first preset station, 1. Turn the radio on. plays for a few seconds, then goes to the next 2.
  • Page 141 Using the Timer 5. Press the alarm button, again. The alarm symbol displays. The alarm sounds at the (Timer): The timer on the radio can be used to same time every day. set a time from 15 minutes up to three hours. 6.

  • Page 142: Radio With Cassette

    Radio with Cassette To seek stations, press and hold either the down or up arrow for a second or longer. The radio seeks to the next or previous station. The radio only seeks stations with a strong signal that are in the selected band. Finding a Station AM FM: Press this button to switch between AM or FM.
  • Page 143 Setting Preset Stations Setting the Tone (Bass/Treble) Up to 10 stations (five FM and five AM) can be TONE: To adjust the bass, turn the control ring programmed on the five numbered pushbuttons, behind the power/volume knob counterclockwise. by performing the following steps: To adjust the treble, turn the control ring behind 1.
  • Page 144 Using the Alarm Playing a Cassette Tape The tape player is built to work best with tapes (Alarm): The alarm on the radio can be used that are up to 30 to 45 minutes long on each side. to activate an alarm at a desired time. Tapes longer than that are so thin they may not To set the alarm, perform the following: work well in this player.

  • Page 145: Radio Reception

    PROG (Program): Press both arrows at the same time to play the other side of the tape. An arrow The range for most AM stations is greater than for appears on the display to show the tape FM, especially at night. The longer range can cause playing direction.

  • Page 146: Care Of The Cassette Tape Player

    Care of the Cassette Tape Player A non-scrubbing action, wet-type cleaner which uses a cassette with a fabric belt to clean the tape A tape player that is not cleaned regularly can head can be used. This type of cleaning cassette cause reduced sound quality, ruined cassettes or a will not eject on its own.

  • Page 147: Driving Your Vehicle

    Section 4 Driving Your Vehicle Your Driving, the Road, and Driving at Night ......... 165 Driving in Rain and on Wet Roads .... 166 Your Vehicle ..........148 City Driving ..........169 Defensive Driving ........148 Freeway Driving ........170 Drunken Driving ........

  • Page 148: Your Driving, The Road, And Your Vehicle

    Your Driving, the Road, and CAUTION: Your Vehicle Defensive driving really means “Be ready Defensive Driving for anything.” On city streets, rural roads, The best advice anyone can give about driving is: or expressways, it means “Always expect Drive defensively. the unexpected.”...

  • Page 149: Drunken Driving

    Drunken Driving Many adults — by some estimates, nearly half the adult population — choose never to drink Death and injury associated with drinking and alcohol, so they never drive after drinking. driving is a national tragedy. It is the number one For persons under 21, it is against the law in contributor to the highway death toll, claiming every U.S.
  • Page 150 According to the American Medical Association, a It is the amount of alcohol that counts. For 180 lb (82 kg) person who drinks three 12 ounce example, if the same person drank three double (355 ml) bottles of beer in an hour will end up with martinis (3 ounces or 90 ml of liquor each) a BAC of about 0.06 percent.
  • Page 151 But the ability to drive is affected well below There is something else about drinking and driving a BAC of 0.10 percent. Research shows that the that many people do not know. Medical research driving skills of many people are impaired at a BAC shows that alcohol in a person’s system can make approaching 0.05 percent, and that the effects are crash injuries worse, especially injuries to the...

  • Page 152: Control Of A Vehicle

    Control of a Vehicle Average reaction time is about three-fourths of a second. But that is only an average. It might be less The following three systems help to control your with one driver and as long as two or three seconds vehicle while driving —...

  • Page 153: Hydraulic Brake Systems

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

  • Page 154: Antilock Brake System (Abs)

    Antilock Brake System (ABS) Your vehicle has the Antilock Brake System (ABS), an advanced electronic braking system that will help prevent a braking skid. When you start the engine and begin to drive away, ABS will check itself. You might hear a momentary motor or clicking noise while this test is going on.
  • Page 155 ABS can change the brake pressure faster than Remember: ABS does not change the time you any driver could. The computer is programmed need to get your foot up to the brake pedal to make the most of available tire and road or always decrease stopping distance.

  • Page 156: Braking In Emergencies

    Braking in Emergencies You can apply the trailer brakes a little or apply them all the way if you have to. Use this control only With ABS, you can steer and brake at the same when you are driving. Do not use it for parking or to time.

  • Page 157: Rear Axle Differential Lock Control

    Rear Axle Differential Lock Control Notice: Turning on the inter-axle differential lock while the rear wheels are spinning freely, as they might on snow or ice, can If your vehicle has a damage the axle(s). Turn on this control only controlled traction or while the wheels are not spinning freely.
  • Page 158 The TCS may operate on dry roads under some To turn the system on conditions. When this happens, you may notice or off, press the traction a reduction in acceleration. This is normal control button located and doesn’t mean there’s a problem with your on the instrument panel.

  • Page 159: Steering

    Steering If there is no traction, inertia will keep the vehicle going in the same direction. If you have ever Power Steering tried to steer a vehicle on wet ice, you will understand this. If you lose power steering assist because the The traction you can get in a curve depends on engine stops or the system is not functioning, the condition of the tires and the road surface,...
  • Page 160 If you need to reduce your speed as you approach a curve, do it before you enter the curve, while the front wheels are straight ahead. Try to adjust your speed so you can “drive” through the curve. Maintain a reasonable, steady speed.

  • Page 161: Off-Road Recovery

    Off-Road Recovery is nothing in the way, steer so that your vehicle straddles the edge of the pavement. You can turn You may find that your right wheels have dropped the steering wheel up to one-quarter turn until off the edge of a road onto the shoulder while the right front tire contacts the pavement edge.
  • Page 162 • So here are some tips for passing: Do not get too close to the vehicle you want to pass while you are awaiting an opportunity. • A vehicle like yours takes a longer time to For one thing, following too closely reduces reach passing speed, so you will need a your area of vision, especially if you are longer stretch of clear road ahead than you...

  • Page 163: Loss Of Control

    • Loss of Control Check your vehicle’s mirrors and start the left lane change signal before moving out Let us review what driving experts say about what of the right lane to pass. When you are happens when the three control systems — brakes, far enough ahead of the passed vehicle to steering, and acceleration —...
  • Page 164 A cornering skid is best handled by easing your While driving on a surface with reduced traction, try foot off the accelerator pedal. your best to avoid sudden steering, acceleration, or braking, including reducing vehicle speed by If you have the Traction Control System (TCS), shifting to a lower gear.

  • Page 165: Driving At Night

    Driving at Night No one can see as well at night as in the daytime. But as we get older these differences increase. Night driving is more dangerous than day driving. A 50-year-old driver might require at least twice as One reason is that some drivers are likely to much light to see the same thing at night as a be impaired —...

  • Page 166: Driving In Rain And On Wet Roads

    Driving in Rain and on Wet Roads Keep the windshield and all the glass on your vehicle clean — inside and out. Glare at night is made much worse by dirt on the glass. Even the inside of the glass can build up a film caused by dust.
  • Page 167 It is always wise to go slower and be cautious if rain starts to fall while you are driving. The surface CAUTION: may get wet suddenly when your reflexes are tuned for driving on dry pavement. Wet brakes can cause accidents. They The heavier the rain, the harder it is to see.
  • Page 168 Hydroplaning and badly damage the engine. Never drive through water that is slightly lower than the Hydroplaning is dangerous. So much water can underbody of your vehicle. If you cannot avoid build up under your tires that they can actually ride deep puddles or standing water, drive on the water.

  • Page 169: City Driving

    Some Other Rainy Weather Tips City Driving • Turn on your low-beam headlamps and your marker and clearance lamps, if your vehicle has them — not just your parking lamps — to help make you more visible to others. • Besides slowing down, allow some extra following distance.

  • Page 170: Freeway Driving

    Freeway 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 171 The most important advice on freeway driving Before changing lanes, check your mirrors. is: Keep up with traffic and keep to the right. Then use your turn signal. Drive at the same speed most of the other drivers Once you are moving on the freeway, make are driving.

  • Page 172: Highway Hypnosis

    Highway Hypnosis Hill and Mountain Roads Is there actually such a condition as highway hypnosis? Or is it just plain falling asleep at the wheel? Call it highway hypnosis, lack of awareness, or whatever. When you drive the vehicle for a long distance, there is something about an easy stretch of road with the same scenery, along with the hum of the tires on the road, the drone of the engine, and the...
  • Page 173 Here are some tips that can make your drive through steep country safer: CAUTION: • Keep the vehicle in good shape. Check all fluid levels and also the brakes, tires, Coasting downhill in NEUTRAL (N) or with cooling system, and transmission. These the ignition off is dangerous.

  • Page 174: Winter Driving

    • Driving on Snow or Ice You might see highway signs on mountains that warn of special problems. Examples are long Most of the time, those places where the tires grades, passing or no-passing zones, a falling meet the road probably have good traction. rocks area, winding roads, and special truck However, if there is snow or ice between the lanes.
  • Page 175 But wet ice can be even more trouble because it If your vehicle does not have TCS, accelerate can offer the least traction of all. You can get gently. Try not to break the fragile traction. If you wet ice when it is about freezing, 32°F (0°C), and accelerate too fast, the drive wheels will spin freezing rain begins to fall.

  • Page 176: If You Are Caught In A Blizzard

    If You Are Caught in a Blizzard Remember, unless your vehicle has ABS, if you brake so hard that the wheels stop rolling, you will If you are stopped by heavy snow, you could be just slide. Brake so the wheels always keep in a serious situation.
  • Page 177 CAUTION: Snow can trap exhaust gases under your vehicle. This can cause deadly CO (carbon monoxide) gas to get inside. CO could overcome you and kill you. You cannot see it or smell it, so you might not know it is in your vehicle.

  • Page 178: If Your Vehicle Is Stuck In Sand, Mud, Ice, Or Snow

    You will need well-charged batteries to restart the vehicle, and possibly for signaling later on with the CAUTION: headlamps. Let the heater run for a while. Then, shut the engine off and close the window If you let your vehicle’s tires spin at high almost all the way to preserve the heat.

  • Page 179: Rocking Your Vehicle To Get It Out

    Rocking Your Vehicle to Get It Out Tow Hooks First, turn the steering wheel left and right to clear the area around the front wheels. Turn off any CAUTION: traction system. See Traction Control System (TCS) on page 157. Then shift back and forth These hooks, when used, are under a lot between REVERSE (R) and a forward gear, spinning the wheels as little as possible.

  • Page 180: Loading Your Vehicle

    Loading Your Vehicle Never exceed the GVWR for your vehicle, or the GAWR for either the front or rear axle. It is the responsibility of the Final Stage And, if you do have a heavy load, spread it out. manufacturer to install a Certification label on your vehicle.
  • Page 181 Using heavier suspension components to get added durability might not change the weight CAUTION: ratings. Ask your dealer to help you load your vehicle the right way. Things you put inside your vehicle can Notice: Overloading your vehicle may cause strike and injure people in a sudden stop damage.

  • Page 182: Towing

    Towing CAUTION: (Continued) Towing Your Vehicle • Working on air brakes without first using the release studs to compress the springs can lead to injury. Never CAUTION: work on the air brakes chambers without first using the release studs to compress the brake springs. To help avoid serious personal injury to •...
  • Page 183 Towing the Vehicle with the Front Bumper When you call, tell the towing service: Removed • That your vehicle has rear-wheel drive. 1. Remove the front bumper. • The make, model and year of your vehicle. 2. Connect and lock the lift chains to the front •...
  • Page 184 Rear Axle Before Towing 1. Disconnect the propshaft at the rear axle. Block the wheels of the disabled vehicle. On vehicles with air brakes, release the emergency 2. Secure the propshaft to the frame or the brake system by compressing the brake chamber crossmember.
  • Page 185 Towing Your Vehicle From the Rear pressure from both systems, the parking brakes will have automatically engaged. The tow operator (Rear Wheels Off the Ground) can release the brakes manually by using the Before Towing following steps. Then your vehicle can be towed with all wheels or only the rear wheels on the Secure the steering wheel to maintain a ground.
  • Page 186 3. Remove the rubber 6. Turn the stud nut cap from the rear of clockwise several the chamber. turns to release the brakes. Follow the same procedure to release the other brake or brakes. 4. Put the release stud, nut and flat washer into 7.

  • Page 187: Trailer Connections (T7/T8 Models Only)

    Trailer Connections Heavy-Duty Trailer Wiring Package (T7/T8 Models Only) Your vehicle may have an eight-wire trailer towing harness. This harness, with a seven-pin universal If your vehicle has these trailer connections, they heavy-duty trailer connector, is attached to a are located at the rear of the cab for a tractor bracket on the platform hitch.
  • Page 188 ✍ NOTES...

  • Page 189: Service And Appearance Care

    Section 5 Service and Appearance Care Service ............191 Power Steering Fluid ......... 225 Accessories and Modifications ....191 Windshield Washer Fluid ......226 California Proposition 65 Warning ....192 Brakes ............227 Doing Your Own Service Work ....193 Battery ............
  • Page 190 Section 5 Service and Appearance Care Tires ............254 Sheet Metal Damage ......... 273 Inflation - Tire Pressure ......255 Finish Damage .......... 273 Wheel Loading .......... 256 Underbody Maintenance ......273 Dual Tire Operation ........256 Chemical Paint Spotting ......274 When It Is Time for New Tires ....

  • Page 191: Service

    Service Accessories and Modifications Adding non-dealer accessories to your vehicle can Your dealer knows your vehicle best and wants affect its performance and safety. Such things as, you to be happy with it. We hope you will go airbags, braking, stability, ride and handling, to your dealer for all your service needs.

  • Page 192: California Proposition 65 Warning

    Aftermarket Engine Performance system, transmission, and drivetrain. Damage, failure, or reduced life of the engine, transmission, Enhancement Products and emission system, drivetrain, or other vehicle Modifications components caused by aftermarket engine performance enhancement products or Some aftermarket engine performance products modifications may not be covered under and modifications promise a way to increase the your vehicle warranty.

  • Page 193: Doing Your Own Service Work

    Doing Your Own Service Work If you want to do some of your own service work, you will want to use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the CAUTION: proper service manual, see Service Publications Ordering Information on page 338.

  • Page 194: Engine Fan Breakage

    Engine Fan Breakage CAUTION: (Continued) CAUTION: Winter Fronts, Grille Covers or Obstructions: Changing the Fan Drive Ratio or Engine Winter Fronts, grille covers or other add-on Governed Speed: equipment causing obstructions in front or behind the fan should not be used on this If you change the fan drive ratio or vehicle.

  • Page 195: Fuel

    Fuel What Fuel to Use Notice: Use of diesel fuel other than Ultra Diesel Engine Fuel Low Sulfur Diesel (15 ppm sulfur maximum) or engine oil other than low ash CJ-4 oil Notice: Diesel fuel or fuel additives not will cause permanent damage to the DPF recommended in this manual could damage and related components.
  • Page 196 In the United States, for best results use No. 2-D Because of the cleansing properties of biodiesel, diesel fuel year-round (above and below freezing switching from straight diesel to a biodiesel conditions) as oil companies blend No. 2-D fuel to blend can prematurely restrict the fuel filter with address climate differences.
  • Page 197 What Fuel to Use in Canada Canadian fuels are blended for seasonal changes. Diesel Type “A” fuel is blended for better cold weather starting (below 0°F or −18°C); however, Notice: Use of diesel fuel other than Ultra Low Sulfur Diesel (15 ppm sulfur maximum) you might notice some power and fuel economy or engine oil other than low ash CJ-4 oil loss.

  • Page 198: Very Cold Weather Operation

    Very Cold Weather Operation Notice: If there is water in your diesel fuel and the weather is warm or humid, fungus Follow the instructions listed previously under the and bacteria can grow in the fuel. They heading “What Fuel to Use.” can damage your fuel system.
  • Page 199 Water In Fuel Light (cont’d) If the light comes on, use this chart to determine what action to take. Problem Recommended Action Water In Fuel Light Light stays on immediately after Fuel tank purging is Problem Recommended Action refueling, and a large required.
  • Page 200 To drain water, do the following: 4. Remove the bowl from the filter element. Clean the bowl and the O-ring gland and 1. Loosen the save them for re-use. self-venting drain 5. Lubricate the O-ring with clean diesel fuel or to empty the bowl motor oil and place it in the bowl gland.
  • Page 201 Fuel Priming For vehicles with cruise control, you can prime the vehicle and remove the air from the fuel system. In order for the diesel engine fuel system to work The following procedure will show you how: properly, the fuel lines must be full of fuel and contain no air.
  • Page 202 6. Use the palm of your hand to repeatedly 9. Tighten the fuel filter breather screw (2) to the press and release the plunger (1) at the specified torque, 4.9 (43 in. lbs). top of the fuel filter priming pump. Continue 10.

  • Page 203: Running Out Of Fuel

    Running Out of Fuel 2. Follow the fuel priming procedure earlier in this section to prime the fuel filter. If the diesel engine stalls and you think that you 3. Close the air bleed valve. have run out of fuel, do this to restart your engine: 4.

  • Page 204: Filling The Tank

    Filling the Tank CAUTION: CAUTION: Fuel can spray out on you if you open the fuel cap too quickly. If you spill fuel and Fuel vapor burns violently and a fuel fire then something ignites it, you could be can cause bad injuries. To help avoid badly burned.

  • Page 205: Filling A Portable Fuel Container

    Notice: If you need a new fuel cap, be sure to get the right type. Your dealer/retailer CAUTION: (Continued) can get one for you. If you get the wrong type, it may not fit properly. This may cause your the fuel vapor. You can be badly burned malfunction indicator lamp to light and and your vehicle damaged if this occurs.

  • Page 206: Checking Things Under The Hood

    Checking Things Under In order to get an accurate reading, the engine should be at normal operating temperature, so that the Hood the oil is warm, and the vehicle must be on level ground. Engine Oil 1. If the engine is at normal operating temperature and the oil is warm, turn off the Checking Engine Oil engine and allow at least five minutes for...
  • Page 207 When to Add Engine Oil This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities Notice: Do not add too much oil. Keep the oil and Specifications on page 285. level between the ADD and FULL marks on the dipstick.

  • Page 208: Kind Of Engine Oil To Use

    What Kind of Engine Oil to Use Look for three things: • CJ-4 Oils designated as API CJ-4 are required for your vehicle. The CJ-4 designation can appear either alone or in combination with other American Petroleum Institute (API) designations, such as API CJ-4/SL. These letters show API levels of quality.

  • Page 209: Engine Oil Life System

    • Engine Oil Additives SAE 10W-40 As shown in the viscosity chart, SAE 10W-40 Do not add anything to the oil. The recommended is best for your vehicle. When it is very oils with the API service symbol are all you cold, below 0°F (−18°C), you should use need for good performance and engine protection.

  • Page 210: Reset Engine Oil Life System

    How to Reset the Engine Oil Life When the system has calculated that oil life has been diminished, it will indicate that an oil change System is necessary. A change engine oil light will The Engine Oil Life System calculates when to come on.

  • Page 211: Engine Air Cleaner/Filter

    What to Do with Used Oil Engine Air Cleaner/Filter Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner.
  • Page 212 When to Inspect the Engine Air To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to Cleaner/Filter release loose dust and dirt. If the filter remains caked with dirt, a new filter is required. To inspect or replace the filter and reset the indicator, if equipped, do the following: The filter change indicator will let you know when...

  • Page 213: Automatic Transmission Fluid

    Automatic Transmission Fluid CAUTION: When to Check A good time to check your automatic transmission Operating the engine with the air fluid level is when the engine oil is checked. cleaner/filter off can cause you or others See your Allison Automatic Transmission to be burned.

  • Page 214: Manual Transmission Fluid

    Manual Transmission Fluid To check the transmission fluid level, do the following: When to Check 1. Remove the filler plug. A good time to have it checked is when the 2. Check to be sure that the lubricant level is up engine oil is checked.

  • Page 215: Hydraulic Clutch

    How to Add Fluid When to Check and What to Use To add transmission fluid, do the following: The hydraulic clutch fluid reservoir is located 1. Remove the filler plug. behind the front 2. Add fluid at the filler plug hole. Add only panel on the driver’s enough fluid to bring the fluid level up to side of the vehicle.

  • Page 216: Engine Coolant

    How to Check and Add Fluid A 50/50 mixture of clean, drinkable water and ® DEX-COOL coolant will: The proper fluid should be added if the fluid level • Give freezing protection down is not between the MAX (Maximum) and MIN to −34°F (−37°C).
  • Page 217 What to Use Notice: If you use an improper coolant mixture, your engine could overheat and be Use a mixture of one-half clean, drinkable water badly damaged. The repair cost would not be ® and one-half DEX-COOL coolant which will covered by your warranty.
  • Page 218 Checking Coolant The vehicle must be on a level surface. When your engine is cold, the coolant level should be at the COLD FILL mark or higher. The coolant surge tank pressure cap can be If the low coolant accessed without tilting light comes on in the the cab.

  • Page 219: Coolant Surge Tank Pressure Cap

    Adding Coolant Coolant Surge Tank Pressure Cap If you need more coolant, add the proper The surge tank pressure cap is located behind the ® DEX-COOL coolant mixture at the surge tank, cab on the driver’s side of the vehicle. but only when the engine is cool.
  • Page 220 If Steam Is Coming From Your Engine If No Steam Is Coming From Your Engine An overheat warning, along with a low coolant light, CAUTION: can indicate a serious problem. See Low Coolant Warning Light on page 129 for more information. Steam from an overheated engine can If you get an engine overheat warning with no burn you badly, even if you just open the...

  • Page 221: Cooling System

    Cooling System If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about 10 minutes. If the warning does not come back on, you can drive normally. CAUTION: If the warning continues and you have not stopped, pull over, stop, and park your vehicle If your vehicle has air conditioning, the right away.
  • Page 222 ® When the engine is cold, the coolant level Notice: Using coolant other than DEX-COOL should be at the COLD FULL mark. If it is not, may cause premature engine, heater core, you may have a leak at the pressure cap or in or radiator corrosion.
  • Page 223 If no coolant is visible in the surge tank, add coolant as follows: CAUTION: CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can Steam and scalding liquids from a hot boil before the proper coolant mixture will.
  • Page 224 CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. 1. You can remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot.

  • Page 225: Power Steering Fluid

    Power Steering Fluid See Scheduled Maintenance on page 295 to determine when to check your power steering fluid. How To Check Power Steering Fluid Check your power steering fluid only when the engine is warm. If the engine is not warm, you probably will not get an accurate reading.

  • Page 226: Windshield Washer Fluid

    Windshield Washer Fluid If either light remains on after you have added power steering fluid to the proper level, then shut off What to Use the engine for 10 seconds. This should reset the brake warning lights. If one or both lights stay on When you need windshield washer fluid, be sure though, see “Hydraulic Brake System Warning to read the manufacturer’s instructions before...

  • Page 227: Brakes

    Brakes Notice: • When using concentrated washer fluid, Brake Fluid follow the manufacturer’s instructions If your vehicle has for adding water. hydraulic brakes, there • Do not mix water with ready-to-use washer is a brake master fluid. Water can cause the solution to cylinder.
  • Page 228 Checking Brake Fluid CAUTION: Apply the brake pedal several times with the ignition off. Then clean one of the reservoir caps and the area around the cap, and remove it. With the wrong kind of fluid in the brake system, the brakes may not work well. The fluid level should be This could cause a crash.
  • Page 229 Four-Wheel and Six-Wheel Drum Brake Adjustment on Air Braked Vehicles Brakes (Air Only) Your vehicle has automatic slack adjusters. Every time you make a brake stop, the brakes The brake drums should be removed and automatically adjust for wear. Slack adjusters inspected each time the tires are removed for should never be manually adjusted to correct rotation or changing.
  • Page 230 Four-Wheel Disc Brakes balance between the front and rear brakes can change — for the worse. The braking performance (Hydraulic Only) you have come to expect can change in many other Your vehicle has four-wheel disc brakes. ways if someone puts in the wrong replacement brake parts.
  • Page 231 Air Dryer Electric Air Compressor Your vehicle may have an electric air compressor. If your vehicle has air brakes, it will have an air This compressor is used to run options that dryer. This collects and removes dirt, moisture, or require pressurized air, such as air horn, air other foreign matter from the air prior to entering seat, exhaust restrictor, or an exhaust brake.
  • Page 232 Chassis Lubrication...
  • Page 233 Item Number Item Remarks Brake Camshaft*** One fitting each (apply sparingly). Brake Caliper Rails$ For caliper rails, apply Aero Shell #5 Lubricant. Steering Column Slip Joint** One fitting. Steering Drag Link Ends One fitting each end. Steering Column U-Joints One fitting each joint. Pivot Points and Hinges Apply chassis lubricant.
  • Page 234 Item Number Item Remarks Transmission* Fill to level of filler plug. Transmission-Automatic*,**,† Check fluid level. One fitting each joint; lubricate with Propshaft Slip Joints GM Part No. 1051344 Wheel Bearing Lubricant. One fitting each joint (1480 and 1550 Series); lubricate with GM Part No. 1051344 Wheel Bearing Propshaft U-joints Lubricant.

  • Page 235: Battery

    Battery Vehicle Storage If you are not going to drive your vehicle for Your vehicle has two maintenance free batteries. 25 days or more, remove the black, negative (−) When it is time for a new battery, see your cable from each battery. This will help keep dealer/retailer for one that has the replacement the batteries from running down.

  • Page 236: Jump Starting

    Jump Starting Trying to start your vehicle by pushing or pulling it will not work, and it could damage If your vehicle’s batteries have run down, you may your vehicle. want to use another vehicle and some jumper 1. Check the other vehicle. It must have a cables to start your vehicle.
  • Page 237 To avoid the possibility of the vehicles rolling, set the parking brake firmly on both vehicles CAUTION: involved in the jump start procedure. Put an automatic transmission in PARK (P) or a Using a match near a battery can cause manual transmission in NEUTRAL before setting the parking brake.
  • Page 238 6. Connect the red positive (+) cable CAUTION: to the positive (+) terminal of the dead Fans or other moving engine parts can battery. Use a injure you badly. Keep your hands away remote positive (+) terminal if the from moving parts once the engine is vehicle has one.
  • Page 239 8. Now connect the black negative (−) cable to The electrical connection is just as good the negative (−) terminal of the good battery. there, and the chance of sparks getting back Use a remote negative (−) terminal if the to the battery is much less.
  • Page 240 Notice: If the jumper cables are connected or To disconnect the jumper cables from both removed in the wrong order, electrical shorting vehicles, do the following: may occur and damage the vehicle. The repairs 1. Disconnect the black negative (−) cable from would not be covered by your warranty.

  • Page 241: Rear Axle

    Rear Axle How to Check Lubricant When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See Scheduled Maintenance on page 295. Notice: If you drive your vehicle through deep water that is higher than the front or rear axle, water may enter the axle housing and cause the axle lubricant to break down.

  • Page 242: Cab Tilting

    Rear Axle Shift Motor Cab Tilting When to Check and Change Fluid Before You Tilt the Cab If you have an optional air-shift two-speed, Most fluids and lubricants requiring regular controlled traction, or locking differential type rear checking can be accessed at the back of the axle, a good time to check the fluid level in the cab.

  • Page 243: Tilting The Cab

    Tilting the Cab To tilt the cab, do the following: 1. Locate the lever pin at the rear of the cab, on the passenger’s side. 2. Turn the lever pin so that the tab is aligned with the slot. Remove the lever pin.
  • Page 244 6. Tilt the cab all the way forward until the cab support under the cab locks fully. A. Safety Lock Pin B. Cab Support 7. Remove the safety lock pin from its 5. Using the handle located at the bottom of the retainer on the cab cab at the back, tilt the cab forward.

  • Page 245: Lowering The Cab

    Lowering the Cab CAUTION: When the cab is ready to be lowered, follow the instructions below carefully. Before lowering the cab, be sure all filler caps are on properly. A cab not properly locked in the tilted position could fall, causing serious injury. 1.
  • Page 246 2. Squeeze the lever on the cap support to release the detent. 3. Using the handle located at the bottom of the cab toward the back, lower the cab until the hook catches and the cab is held down. 4. Push the primary tilt lever upward fully to lock the cab to the chassis.

  • Page 247: Lifting The Front Panel

    Lifting the Front Panel 5. Reinstall the pin and turn it to keep the To access the windshield washer fluid reservoir primary tilt lever and the clutch fluid reservoir, the front panel must from moving be lifted. downward. 1. To lift the panel, grasp the rear of the release catch, located at the bottom...

  • Page 248: Noise Control System

    Noise Control System 2. Then go to the front of the vehicle and lift the panel at Tampering with Noise Control the center. Use the prop rod to hold System Prohibited the panel open. The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 10,000 lbs (4 536 kg).
  • Page 249 Fan and Drive: Federal law prohibits the following acts or the causing thereof: • Removal of fan clutch, if the vehicle has one, 1. The removal or rendering inoperative or rendering clutch inoperative. by any person, other than for purposes of •...

  • Page 250: Bulb Replacement

    Bulb Replacement Here’s how to remove the wiper blade: It is recommended that all bulbs be replaced by your dealer. Windshield Wiper Blade Replacement Windshield wiper blades should be inspected at least twice a year for wear or cracking. See “Wiper Blade Check”...

  • Page 251: Windshield Wiper Blade Replacement Other Service Items

    Other Service Items Fuel Filter 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. See Fuel Filter Replacement earlier in this section for further information. Also see Scheduled Maintenance on page 295 for recommended service intervals.

  • Page 252: Primary Fuel Filter And Water Separator

    Primary Fuel Filter and Water Secondary Fuel Filter and Heater Separator Your vehicle may have this fuel filter and fuel heater. It is mounted on the left side of the engine. Your vehicle may have this spin-on filter. It is located on the driver’s side frame rail.

  • Page 253: Front Wheel Bearings With

    Front Wheel Bearings with If your vehicle has oil-filled hubs, Oil-Filled Hubs occasionally check to see if they have enough Notice: If you drive your vehicle through deep oil. You can tell if there water that is higher than the front or rear is oil there by using the axle, water may enter the axle housing and circular gage on the...

  • Page 254: Tires

    Tires CAUTION: (Continued) Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever • Underinflated tires pose the same have questions about your tire warranty and where danger as overloaded tires. The to obtain service, see your vehicle Warranty resulting accident could cause serious booklet for details.

  • Page 255: How To Check

    Inflation - Tire Pressure When to Check Check your tires once a month or more. Tires need the correct amount of air pressure to operate effectively. The Certification or Tire Also, check the tire pressure of the spare tire if Information label shows the correct inflation your vehicle has one.

  • Page 256: Wheel Loading

    Be sure to put the valve caps back on the valve See Tightening the Wheel Nuts on page 259 for stems. They help prevent leaks by keeping out dirt wheel nut tightening information and proper torque and moisture. values. Wheel Loading CAUTION: Wheels are stamped with a maximum load and cold inflation rating.

  • Page 257: When It Is Time For New Tires

    When It Is 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. Mixing tires could cause you to lose Also, you need a new tire if: control while driving.

  • Page 258: Different Size Tires And Wheels

    Different Size Tires and Wheels CAUTION: If wheels or tires are added that are a different size than the original equipment wheels and tires, this could affect the way your vehicle performs, If you add different sized wheels, your including its braking, ride and handling vehicle may not provide an acceptable characteristics, stability, and resistance to rollover.

  • Page 259: 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 CAUTION: best overall performance. Proper front wheel alignment must be maintained Wheel nuts that are not tight can work in order to ensure efficient steering, good loose.
  • Page 260 Hub-Piloted Wheels, 8-Hole or 10-Hole First, use these pictures to decide what kind of wheels you have. 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.
  • Page 261 6. Tighten the nuts to 400 lb ft (542 ) if an 8-hole stud or 480 lb ft (650 ) if a 10-hole stud, using the following diagrams. 10-Hole (Front) 10-Hole (Rear) CAUTION: 8-Hole Never use oil or grease on studs or the threads of the wheel nuts.
  • Page 262 CAUTION: CAUTION: If wheel studs are damaged, they can Rust or dirt on a wheel, or on the parts to break. If all the studs on a wheel broke, which it is fastened, can make wheel nuts the wheel could come off and cause a become loose after a time.

  • Page 263: Wheel Replacement

    Wheel Replacement CAUTION: Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, replace the wheel, wheel bolts, and wheel Using the wrong replacement wheels, nuts. If the wheel leaks air, replace it. wheel bolts, or wheel nuts on your vehicle can be dangerous.
  • Page 264 CAUTION: (Continued) CAUTION: dealer to get a new wheel, wheel bolts or A leaking wheel could fail without warning. wheel nuts, be sure you get the correct A wheel designed for tubeless tires could ones. Each new wheel should match the be leaking because it is damaged.

  • Page 265: If A Tire Goes Flat

    Used Replacement Wheels If a Tire Goes Flat It is unusual for a tire to blowout while you are driving, especially if you maintain your tires CAUTION: properly. If air goes out of a tire, it is much more likely to leak out slowly. But if you should ever Putting a used wheel on your vehicle is have a blowout, here are a few tips about what dangerous.
  • Page 266 If a tire goes flat, avoid further tire and wheel a flat tire safely. For example, you would need a damage by driving slowly to a level place and turn truck jack that can lift several thousand pounds on your hazard warning flashers. See Hazard and a torque wrench that can generate several Warning Flashers on page 102.

  • Page 267: Appearance Care

    Appearance Care using cleaners on surfaces for which they were not intended. Use glass cleaner only on glass. Remove any accidental over-spray from other surfaces Cleaning the Inside of Your Vehicle immediately. To prevent over-spray, apply cleaner directly to the cleaning cloth. Your vehicle’s interior will continue to look its best if it is cleaned often.

  • Page 268: Fabric/Carpet

    Fabric/Carpet Do not clean your vehicle using the following cleaners or techniques: Use a vacuum cleaner with a soft brush • Never use a knife or any other sharp object to attachment frequently to remove dust and loose remove a soil from any interior surface. dirt.

  • Page 269: Instrument Panel, Vinyl, And Other

    Instrument Panel, Vinyl, and Other 4. Continue to gently rub the soiled area until the cleaning cloth remains clean. Plastic Surfaces 5. If the soil is not completely removed, use a A soft cloth dampened with water may be used mild soap solution and repeat the cleaning to remove dust.

  • Page 270: Care Of Safety Belts

    Care of Safety Belts Washing Your Vehicle Keep belts clean and dry. The paint finish on the vehicle provides beauty, depth of color, gloss retention, and durability. The best way to preserve the vehicle’s finish is to CAUTION: keep it clean by washing it often with lukewarm or cold water.

  • Page 271: Cleaning Exterior Lamps/Lenses

    Cleaning Exterior Lamps/Lenses chimneys, etc., can damage the vehicle’s finish if they remain on painted surfaces. Wash the vehicle Use only lukewarm or cold water, a soft cloth and as soon as possible. If necessary, use non-abrasive a car washing soap to clean exterior lamps cleaners that are marked safe for painted surfaces and lenses.

  • Page 272: Windshield And Wiper Blades

    Windshield and Wiper Blades Aluminum Wheels The vehicle may have aluminum wheels. Clean the outside of the windshield with glass cleaner. Notice: If you use strong soaps, chemicals, abrasive polishes, cleaners, brushes, or Clean the rubber blades using a lint free cloth or cleaners that contain acid on aluminum or paper towel soaked with windshield washer fluid or chrome-plated wheels, you could damage the...

  • Page 273: Tires

    Tires Finish Damage To clean the tires, use a stiff brush with tire Any stone chips, fractures or deep scratches in cleaner. the finish should be repaired right away. Bare metal will corrode quickly and may develop into Notice: Using petroleum-based tire dressing major repair expense.

  • Page 274: Chemical Paint Spotting

    Chemical Paint Spotting Vehicle Care/Appearance Materials Some weather and atmospheric conditions can Description Usage create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the Polishing Cloth Interior and exterior Wax- Treated polishing cloth. vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular Tar and Road Oil Removes tar, road oil and...

  • Page 275: Vehicle Identification

    Vehicle Identification Description Usage Removes dust, fingerprints, and surface Vehicle Identification Number (VIN) Finish Enhancer contaminants. Spray on wipe off. Removes swirl marks, fine Swirl Remover Polish scratches and other light surface contamination. Removes light scratches Cleaner Wax and protects finish. Cleans, shines and Foaming Tire Shine protects in one easy step,...

  • Page 276: Electrical System

    Electrical System Windshield Wiper Fuses The windshield wiper motor is protected by a Add-On Electrical Equipment circuit breaker inside the motor and a circuit breaker or fuse in the fuse block. If the motor Notice: Do not add anything electrical to your overheats, the wipers will stop until the motor vehicle unless you check with your dealer cools.

  • Page 277: Power Windows And Other Power Options

    Power Windows and Other Power Instrument Panel Fuse Block Options Circuit breakers in the fuse panel protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens. This protects the circuit until the current load returns to normal or the problem is fixed.
  • Page 278 If you ever have a problem on the road and don’t have a spare fuse, you can borrow one of the correct value. Just pick some feature of your vehicle that you can get along without, like the radio or cigarette lighter, and use its fuse if it is the value you need.
  • Page 279 Fuses Usage Fuses Usage Ignition Switch Transmission Control Module, Ignition, Chime Cigarette Lighter Assembly Line Data Link Connector Engine Control Module, Ignition 1...
  • Page 280 Fuses Usage Fuses Usage Warning Lamp, Ignition Relay, Headlamp Blower Motor, Motor Relay, Heated Fuel Auxiliary Relay, Power Window Relay, Interior Relay Meter Transmission Control Module Room Lamp, Horn, Electric Parking Identification Lamp, Marker Lamp, Brake, Radio Back Up, Rear Body Tail Lamp, Lighted Mirror, Dome Lamp Illumination Lamp...

  • Page 281: Maxi-Fuse Block

    Maxi-Fuse Block Fuses Usage Stoplamp, Turn Signals/Hazard When a fuse goes out, first check the instrument ST/TURN/HAZ Warning Flashers panel fuse block. If there are no fuses out, the problem could be in the maxi-fuse block. IGN SW 3 Air Conditioner, Axle, Chassis The maxi-fuse block outside of the cab on INT/EXT Parking Lamps, Dome Lamp,...

  • Page 282: Relay Center

    Relay Center Relay Block A Relay Block A Usage Power Window (If Equipped) Power Main (ECU) High Beam There are four relay blocks in your vehicle: Lighting A. Relay Block A C. Relay Block C Lighting (Low, High) B. Relay Block B D.
  • Page 283 Relay Block B Usage Air Conditioning Condenser (If Equipped) Air Conditioning Compressor (If Equipped) Heater Fan Ignition (Accessory) Ignition (1) Ignition (2) Relay Block B Auxiliary Horn Ignition (3) Dome Lamp (If Equipped) Exhaust Brake (If Equipped) Power Take-Off Control (If Equipped)
  • Page 284 Relay Block D Relay Block C Relay Block D Usage Neutral (Medium Duty Transmission) Relay Block C Usage Back-up Lamp (Reverse) Parking Brake (Medium Duty Transmission) Daytime Running Lamps (DRL) On (Engine Run) Daytime Running Lamps (DRL) Off (Parking) Parking Lamps/Daytime Running Lamps (DRL) Fuel Filter (Heated Fuel) Stop Lamp...

  • Page 285: Capacities And Specifications

    Capacities and Specifications The following approximate capacities are given in English and metric conversions. See Part C: Recommended Fluids and Lubricants on page 321 for more information. Capacities and Specifications Capacities Application English Metric For the air conditioning system refrigerant charge amount, see the refrigerant Air Conditioning Refrigerant R134a caution label located under the hood.
  • Page 286 Capacities and Specifications (cont’d) Capacities Application English Metric Fuel Tank Standard (Single) 50.0 gal 189.3 L Optional (Single) 50.0 gal 189.3 L Optional (Dual) 75.0 gal 283.9 L Optional (Dual) 100.0 gal 378.5 L Single 50-gallon (189 L) tanks. Not applicable to 4X2 vehicles with 128 inch or 140 inch wheelbases and not applicable to 6x4 vehicles with a 152 inch wheelbase.
  • Page 287 Capacities and Specifications (cont’d) Capacities Application English Metric Rear Axle – Tandem DS404 (front) (HPE); RS404 (rear) 32.0 pt 15.1 L Rear Axle – Two-Speed 19060T (HPL); 21060T (H15) 38.0 pt 18.0 L 23080T (H25) 44.0 pt 20.8 L Transmission Fluid, Automatic 2200 Series;...

  • Page 288: Normal Maintenance Replacement Parts

    Engine Specifications Engine Type Firing Order Isuzu 6H 1–5–3–6–2–4 Normal Maintenance Replacement Parts Part Part Number Air Compressor Filter (Haldex Air Compressor) 100696-E Oil Filter 94392475 Engine Air Cleaner/Filter P533930 Chassis Mounted Fuel Filter 15725783† Engine Mounted Fuel Filter 98026037 Haldex GM part number Donaldson...

  • Page 289: Engine Drive Belt Routing

    Engine Drive Belt Routing Belt routing for non air conditioning option shown. Dotted line shows routing for vehicles with air conditioning. Isuzu 6H Diesel Engine...
  • Page 290 ✍ NOTES...

  • Page 291: Maintenance Schedule

    Section 6 Maintenance Schedule Maintenance Schedule ........ 292 Scheduled Maintenance ......295 Introduction ..........292 Part B: Owner Checks and Services ..315 Maintenance Requirements ......292 At Each Fuel Fill ........315 Your Vehicle and the Environment .... 292 At Least Twice a Year ......

  • Page 292: Maintenance Schedule

    Maintenance Schedule Maintenance Requirements Maintenance intervals, checks, inspections and Introduction recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in Important: Keep engine oil at the proper level good working condition. Any damage caused by and change as recommended.

  • Page 293: How This Section Is Organized

    How This Section is Organized CAUTION: (Continued) This maintenance schedule is divided into four parts: proper tools and equipment for the job. “Part A: Scheduled Maintenance Services” If you have any doubt, have a qualified explains what to have done and how often. technician do the work.

  • Page 294: Part A: Scheduled Maintenance Services

    Part A: Scheduled Maintenance This part tells you the maintenance services you should have done and when to schedule them. Services When you go to your dealer for your service In this part are scheduled maintenance services needs, you will know that GM-trained and which are to be performed at the mileage intervals supported service people will perform the specified.

  • Page 295: Scheduled Maintenance Supplements

    Scheduled Maintenance 1,000 Miles (1 600 km) ❑ Wheel stud nut service. (30) Supplements ❑ Rear axle air shift motor service. (9) ® If your vehicle has an Allison Transmission , your owner manual is supplemented by an Allison 7,500 Miles (12 000 km) ®...
  • Page 296 ❑ Clean air brake application valve (or every ❑ Check fluid levels (or every 3 months, whichever 3 months, or every 300 hours, whichever occurs occurs first). (1) (5) first). Lubricate linkage. ❑ Replace fuel filter (or every 750 hours of engine ❑...
  • Page 297 ❑ Clean air brake application valve (or every ❑ Cooling system service. Clean the cooling 3 months, or every 300 hours, whichever system filter cap with clean water, clean the occurs first). Lubricate linkage. core, pressure test the cap and the system for proper pressure capability, and inspect the ❑...
  • Page 298 ❑ Air brake system valve service (or every ❑ Inspect engine air cleaner filter change indicator. 3 months, or every 900 hours, whichever If necessary, replace the filter. If vehicle is driven occurs first). (31) in dusty/dirty conditions, inspect filter change indicator at every engine oil change.
  • Page 299 ❑ Parking brake service (or every 6 months, 37,500 Miles (60 000 km) whichever occurs first). (7) ❑ Check fluid levels (or every 3 months, ❑ Air brake service (or every 6 months, whichever whichever occurs first). (1) (5) occurs first). (26) ❑...
  • Page 300 ❑ Cooling system service. Clean the cooling 45,000 Miles (72 000 km) system filler cap with clean water, clean the ❑ Vehicles Without Engine Oil Life System Only: core, pressure test the cap and the system for Change engine oil and filter (or every 12 months, proper pressure capability, and inspect the or every 750 hours of engine operation, condition of cooling and heater hoses and...
  • Page 301 ❑ Check air brake relay valve operation and check 50,000 Miles (80 000 km) for leaks (or every month, or every 300 hours, ❑ Inspect air compressor discharge port (or every whichever occurs first). 6 months or every 1,800 hours, whichever ❑...
  • Page 302 ❑ Clean air brake application valve (or every ❑ Replace fuel filter (or every 750 hours of engine 3 months, or every 300 hours, whichever occurs operation, whichever occurs first). first). Lubricate linkage. ❑ Chassis lubrication service (or every 6 months, ❑...
  • Page 303 ❑ Air brake automatic slack adjuster service (or ❑ Cooling system service. Clean the cooling every 500 hours, whichever occurs first). (27) system filler cap with clean water, clean the core, pressure test the cap and the system ❑ Check air brake relay valve operation and check for proper pressure capability, and inspect for leaks (or every month, or every 300 hours, the condition of cooling and heater hoses and...
  • Page 304 ❑ Air brake system valve service (or every ❑ Inspect engine air cleaner filter change indicator. 3 months, or every 900 hours, whichever occurs If necessary, replace the filter. If vehicle is driven first). (31) in dusty/dirty conditions, inspect filter change indicator at every engine oil change.
  • Page 305 ❑ Air brake service (or every 6 months, whichever 82,500 Miles (132 000 km) occurs first). (26) ❑ Check fluid levels (or every 3 months, ❑ Air brake automatic slack adjuster service (or whichever occurs first). (1) (5) every 500 hours, whichever occurs first). (27) ❑...
  • Page 306 ❑ Cooling system service. Clean the cooling 90,000 Miles (144 000 km) system filler cap with clean water, clean the ❑ Vehicles Without Engine Oil Life System Only: core, pressure test the cap and the system for Change engine oil and filter (or every 12 months, proper pressure capability, and inspect the or every 750 hours of engine operation, condition of cooling and heater hoses and...
  • Page 307 ❑ Air brake automatic slack adjuster service (or 96,000 Miles (152 000 km) every 500 hours, whichever occurs first). (27) ❑ Lubricate U-joints (or every 6 months, ❑ Check air brake relay valve operation and check whichever occurs first). for leaks (or every month, or every 300 hours, 97,500 Miles (156 000 km) whichever occurs first).
  • Page 308 ❑ Exhaust brake service, if equipped. Check 200,000 Miles (320 000 km) for excessive spindle free play and smooth ❑ Rear axle service – Eaton ® ® ® , Rockwell , Spicer operation. Lubricate ball joint cap. axles (or every 12 months, whichever occurs ❑...
  • Page 309 300,000 Miles (480 000 km) (2) = An Emission Control Service. ❑ Rear axle service – Eaton ® ® ® (3) = A Noise Emission Control Device. , Rockwell , Spicer axles (or every 12 months, whichever occurs (4) = Applies to vehicles sold in the United States first).
  • Page 310 (8) = This vehicle has the Engine Oil Life System. (10) = Chassis Lubrication Service: Lubricate all This system will show you when to change the grease fittings in front suspension, front axle, and engine oil and filter – usually between 3,000 miles steering linkage.
  • Page 311 (11) = Check steering system: (13) = Adjust tire pressures as indicated on the Certification or Tire Information label for optimum • Look for damaged, loose, or missing parts. tire life. See Tires on page 254 for further details. Inspect the steering linkage relay rod and Check tires for excessive or abnormal wear or tie rod ends for looseness or lack of lubricant.
  • Page 312 (17) = With the engine off and below normal (20) = Check the air intake system installation to operating temperature, check to see that see that gaskets are seated properly and all hose the thermostatically controlled engine cooling connections, fasteners, and other components are fan can be rotated by hand on viscous-operated tight.
  • Page 313 • (25) = Front axle service: Re-pack upper kingpin Inspect air parking brake chamber for leaks roller bearing. and damage. Inspect lines and hoses for leaks, cracks, chafing, etc. Also check all attachments (26) = Air brake service: for tightness, wear, or damage. Note: The •...
  • Page 314 (27) = Clean and lubricate air brake automatic (31) = Inspect and clean any accumulated dirt, slack adjuster. Check pushrod travel and gravel, or other foreign objects from the valves and auto adjustment operation. Have serviced if valve boots as needed. Using light oil, lubricate needed.

  • Page 315: Part B: Owner Checks And Services

    Part B: Owner Checks and Services At Each Fuel Fill Listed in this part are owner checks and services It is important for you or a service station attendant which should be performed at the intervals to perform these underhood checks at each fuel fill. specified to help ensure the safety, dependability Engine Oil Level Check and emission control performance of your vehicle.

  • Page 316: At Least Twice A Year

    At Least Twice a Year Weatherstrip Lubrication Silicone grease on weatherstrips will make them Restraint System Check last longer, seal better, and not stick or squeak. Make sure any safety belt reminder light and Apply silicone grease with a clean cloth. During safety belt assemblies are working properly.
  • Page 317 Starter Switch Check Transmission Shift Indicator Check Check that the indicator points to the gear chosen. CAUTION: Steering Check Be alert for any changes in steering action, When you are doing this inspection, the abnormal front tire wear, or steering wheel vehicle could move suddenly.
  • Page 318 Engine Cooling System Service Windshield Wipers and Washers Check Inspect the hoses and have them replaced if they Check operation and condition of the wiper are cracked, swollen, or deteriorated. Inspect all blades. Check the flow of the washer spray. pipes, fittings, and clamps;...
  • Page 319 Lamps Check Door Latches Check Check panel lighting, warning lights, indicator lights, Check that doors close, latch, and lock tightly. and interior lamps. On the outside, check: license Check for broken, damaged, or missing parts plate lamps, sidemarker lamps, reflectors or lights that might prevent tight latching.

  • Page 320: At Least Once A Year

    Underbody Inspection At Least Once a Year Corrosive materials used for ice, snow removal, Key Lock Cylinders Service and dust control can collect on the underbody. If these materials are not removed, accelerated Lubricate the key lock cylinders with the lubricant corrosion (rust) can occur on underbody parts specified in Part C.

  • Page 321: Part C: Recommended Fluids And Lubricants

    Part C: Recommended Fluids and Usage Fluid/Lubricant Lubricants High-Temperature Grease Exhaust Brake (GM Part No. U.S. 1051344, Ball Joint Cap Fluids and lubricants identified below by name, in Canada 903037) or NLGI #3 Lubricant consistency. part number, or specification can be obtained from your dealer/retailer.
  • Page 322 Usage Fluid/Lubricant Usage Fluid/Lubricant Wheel bearing lubricant meeting Wheel bearing lubricant meeting Front Wheel requirements of NLGI #2, requirements of NLGI #2, Bearings Propshafts and Category GC or GC-LB Category GC or GC-LB (Except Oil Splines (GM Part No. U.S. 1051344, (GM Part No.

  • Page 323: Part D: Maintenance Record

    Part D: Maintenance Record After the scheduled services are performed, record the date, odometer reading and who performed the service, and any additional information from “Owner Checks and Services” on the following record pages. Also, you should retain all maintenance receipts. Miles/km Or Maintenance Record Date...
  • Page 324 Miles/km Or Maintenance Record Date Serviced By Hours...
  • Page 325 Miles/km Or Maintenance Record Date Serviced By Hours...
  • Page 326 Miles/km Or Maintenance Record Date Serviced By Hours...

  • Page 327: Customer Assistance Information

    Section 7 Customer Assistance Information Customer Assistance and Information ..328 Reporting Safety Defects to Customer Satisfaction Procedure ....328 General Motors ........337 Customer Assistance for Service Publications Ordering Text Telephone (TTY) Users ....330 Information ..........338 Customer Assistance Offices ..... 330 Vehicle Data Recording and Privacy ..

  • Page 328: Customer Assistance And Information

    Centre in Oshawa by calling 1-800-263-3777 Your satisfaction and goodwill are important (English) or 1-800-263-7854 (French). to your dealer and to GMC. Normally, any concerns with the sales transaction or the We encourage you to call the toll-free number in operation of your vehicle will be resolved by order to give your inquiry prompt attention.
  • Page 329 STEP THREE: Both General Motors and your You may contact the BBB Auto Line Program dealer are committed to making sure you are using the toll-free telephone number or write them completely satisfied with your new vehicle. at the following address: However, if you continue to remain unsatisfied BBB Auto Line Program after following the procedure outlined in Steps One...

  • Page 330: Customer Assistance For Text Telephone (Tty) Users

    (TTYs)) To assist customers who are deaf, hard of Fax Number: 313-381-0022 hearing, or speech-impaired and who use the Text Telephones (TTYs), GMC has TTY equipment From Puerto Rico available at its Customer Assistance Center. 1-800-496-9992 (English) Any TTY user can communicate with GMC 1-800-496-9993 (Spanish) by dialing: 1-800-GMC-8583 (462-8583).

  • Page 331: Gm Mobility Reimbursement Program

    Overseas – Customer Assistance GM Mobility Reimbursement Program Please contact the local General Motors Business Unit. Mexico, Central America and Caribbean Islands/Countries (Except Puerto Rico and U.S. Virgin Islands) – Customer Assistance General Motors de Mexico, S. de R.L. de C.V. Customer Assistance Center This program, available to qualified applicants, can Paseo de la Reforma # 2740...

  • Page 332: Roadside Assistance Program

    Roadside Assistance Program Collision Damage Repair The Roadside Assistance program for GM Medium If your vehicle is involved in a collision and it is Duty trucks provide stranded owners/operators damaged, have the damage repaired by a qualified with towing service for disabled vehicles. technician using the proper equipment and quality replacement parts.
  • Page 333 Insuring Your Vehicle A recycled original equipment GM part, may be an acceptable choice to maintain your vehicle’s Protect your investment in your GM vehicle with originally designed appearance and safety comprehensive and collision insurance coverage. performance, however, the history of these parts is There are significant differences in the quality of not known.
  • Page 334 If an Accident Occurs • If you need roadside assistance, call GM Roadside Assistance. See Roadside Here is what to do if you are involved in an Assistance Program on page 332 for more accident. information. • Try to relax and then check to make sure you •...
  • Page 335 • Managing the Vehicle Damage Repair If possible, call your insurance company from the scene of the accident. They will walk you Process through the information they will need. If they In the event that your vehicle requires damage ask for a police report, phone or go to the police repairs, GM recommends that you take an active department headquarters the next day and you role in its repair.

  • Page 336: Reporting Safety Defects

    If another party’s insurance company is paying If NHTSA receives similar complaints, it may open for the repairs, you are not obligated to accept an investigation. If it finds that a safety defect exists a repair valuation based on that insurance in a group of vehicles, it may order a recall and company’s collision policy repair limits, as you remedy campaign.

  • Page 337: Reporting Safety Defects To

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

  • Page 338: Service Publications Ordering

    Service Publications Ordering Owner Information Information Owner publications are written specifically for owners and intended to provide basic operational Service Manuals information about the vehicle. The owner’s manual will include the Maintenance Schedule for all Service Manuals have the diagnosis and repair models.

  • Page 339: Vehicle Data Recording And Privacy

    ORDER TOLL FREE: 1-800-551-4123 Vehicle Data Recording and Monday-Friday 8:00 AM - 6:00 PM Privacy Eastern Time Your GM vehicle has a number of sophisticated For Credit Card Orders Only computers that record information about the (VISA-MasterCard-Discover), visit Helm, Inc. at: vehicle’s performance and how it is driven.

  • Page 340: Event Data Recorders

    Event Data Recorders conditions and no personal data (e.g., name, gender, age, and crash location) is recorded. This vehicle has an Event Data Recorder (EDR). However, other parties, such as law enforcement, The main purpose of an EDR is to record, in could combine the EDR data with the type of certain crash or near crash-like situations, such as personally identifying data routinely acquired...

  • Page 341: Onstar

    OnStar Radio Frequency Identification (RFID) ® If your vehicle has OnStar and you subscribe to ® ® the OnStar services, please refer to the OnStar RFID technology is used in some vehicles Terms and Conditions for information on data for functions such as tire pressure monitoring and collection and use.
  • Page 342 ✍ NOTES...
  • Page 343 Appearance Care (cont.) Sheet Metal Damage ....... 273 Accessories and Modifications ..... 191 Tires ............273 Add-On Electrical Equipment ....... 276 Underbody Maintenance ......273 Air Cleaner/Filter, Engine ......211 Vehicle Care/Appearance Materials ..274 Air Conditioning ........... 114 Washing Your Vehicle ......270 Air Pressure Gage ........
  • Page 344 Battery ............235 Cab Tilting Brake Before You Tilt the Cab ......242 Diesel Engine Exhaust ....... 74 Lifting the Front Panel ......247 Emergencies ..........156 Lowering the Cab ........245 Exhaust Indicator Light ......133 Tilting the Cab ......... 243 Trailer Hand Control Valve .......
  • Page 345 Center Seat ..........27 Cleaning (cont.) Charging System Light ........ 122 Tires ............273 Check Underbody Maintenance ......273 Engine Light ..........130 Washing Your Vehicle ......270 Gages Warning Light ....... 134 Weatherstrips ........... 270 Chemical Paint Spotting ......274 Windshield and Wiper Blades ....
  • Page 346 Customer Assistance Information Diesel Engine (cont.) Customer Assistance for High Idle System ........70 Text Telephone (TTY) Users ....330 Starting ............66 Customer Assistance Offices ....330 Diesel Particulate Filter ......... 87 Customer Satisfaction Procedure ....328 Diesel Particulate Filter Warning Light ..136 GM Mobility Reimbursement Program ..
  • Page 347 Engine (cont.) Coolant Heater .......... 73 EDR ............339 Coolant Temperature Gage ...... 128 Electrical System Diesel Engine Exhaust Brake ..... 74 Add-On Equipment ........276 Drive Belt Routing ........289 Fuses and Circuit Breakers ...... 277 Exhaust ............. 86 Fusible Links ..........
  • Page 348 Fuel (cont.) Water in Fuel ........... 198 Filter Water in Warning Light ......135 Engine Air Cleaner ........211 What Fuel to Use ........195 Finish Damage ..........273 Fuses Fixed Mast Antenna ........146 Fuses and Circuit Breakers ...... 277 Flashers, Hazard Warning ......
  • Page 349 Hazard Warning Flashers ......102 Ignition Positions ........... 66 Headlamp Wiring ......... 276 Infants and Young Children, Restraints ..46 Headlamps ..........110 Inflation - Tire Pressure ....... 255 Bulb Replacement ........250 Instrument Panel Daytime Running Lamps ......111 Overview ..........
  • Page 350 Light (cont.) Malfunction Indicator ........ 130 Lamps Range Inhibit Warning Indicator ....124 Dome ............112 Reduced Engine Power ......133 Marker ............. 112 Safety Belt Reminder ....... 121 Rear Reading .......... 113 Safety Belt Reminder Tone ...... 121 LATCH System Service Transmission Warning ....
  • Page 351 Malfunction Indicator Light ......130 Manual Lumbar Controls ....... 23 Maintenance, Normal Replacement Parts ..288 Manual Seats ..........22 Maintenance Schedule Manual Transmission At Each Fuel Fill ........315 Fluid ............214 At Least Once a Year ......320 Operation ...........
  • Page 352 Odometer ............ 120 Paint, Damage ..........273 Odometer, Trip ..........120 Park Brake ..........81, 82 Off-Road Recovery ........161 Parking ............80 Brake Burnish Procedure ......85 Change Engine Oil Light ......132 Over Things That Burn ......86 Engine .............
  • Page 353 Rear Reading Lamps ........113 Reclining Seatbacks ........24 Questions and Answers About Safety Belts ..32 Reduced Engine Power Light ...... 133 Reporting Safety Defects Canadian Government ......337 General Motors ........337 Radio Frequency Identification (RFID), United States Government ....... 336 Privacy .............
  • Page 354 Securing a Child Restraint Medium Duty Vehicle ......... 55 Safety Belt Service ............191 Reminder Light ........121 Accessories and Modifications ....191 Reminder Tone ........121 California Proposition 65 Warning ..... 192 Safety Belts Doing Your Own Work ......193 Care of ............
  • Page 355 Traction Control System Active Light ..... 128 Tachometer ..........120 Control System (TCS) ......157 TCS Active Light ......... 128 Trailer Tilt Wheel ............ 102 Connections ..........187 Time, Setting ..........138 Trailer Brake Hand Control Valve ....156 Tires ............254 Transmission Aluminum Wheels, Cleaning .....
  • Page 356 Water in Fuel Warning Light ......135 What Fuel to Use ........195 Vehicle Wheels Control ............. 152 Alignment and Tire Balance ..... 259 Damage Warnings ........18 Different Size ........... 258 Loading ............ 180 Front Bearings with Oil-Filled Hubs ..253 Symbols .............

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