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S I E R R A
~~
C O M F O R T A B L Y
1 N
C O M M A N D . ' "

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Summary of Contents for GMC SIERRA 1998

  • Page 1 S I E R R A C O M M A N D . ' " C O M F O R T A B L Y...
  • Page 7 8- 1 Customer Assistance Information This section tells you how to contact GMC for assistance and how to get service and owner publications. It also gives you information on "Reporting Safety Defects" on page Index Here's an alphabetical listing of almost every subject in this manual.
  • Page 8 GENERAL MOTORS, GM, the GM Emblem, GMC, National Institute far A U T O M O T I V E the GMC Emblem and the name SIERRA are registered S E R V I C E E X C E L L E N C E trademarks of General Motors Corporation.
  • Page 9 Safety Warnings and Symbols How to Use this Manual You will find a number safety cautions in this book. Many people read their owner’s manual from beginning use a box and the word CAUTION tell you to end when they first receive their new vehicle. If you about things that could hurt you if you were to ignore do this, it will help learn about the features and...
  • Page 10 area, circle You will also find a the notice we tell you about something that can with a slash through it in damage your vehicle. Many times, this damage would this book. This safety not be covered by your warranty, and it could be costly.
  • Page 11 Vehicle Symbols These are some of the symbols you may find on your vehicle. For example. These symbols These symbols These symbols These symbols Here are some these symbols are important have to do with are on some used on other symbols are used on an for you and...
  • Page 12 Model Reference .s manual Crew Cab covers these models: Regular Cab Pickup Chassis Cab Extended Cab Pickup 3500 HD Chassis Cab...
  • Page 13 Section 1 Seats and Restraint Systems You can also Here you’ll find information about the seats in your vehicle and how to your safety belts properly. learn about some things you should do with air bags and safety belts. Seats and Seat Controls 1-34 Rear Seat Passengers Safety Belts: They’re for Everyone...
  • Page 14 manual If your vehicle has a Seats and Seat Controls bucket, split bench or full This section tells you about the seats how to adjust bench seat, you can adjust it them, and fold them up and down. It also tells you about with this lever the front reclining front seatbacks and head restraints.
  • Page 15 The switch located at the front of this control panel Power Driver’s Seat (Option) is for the power lumbar adjustment, which is explained next. Power Lumbar Control (If Equipped) you have power lumbar adjustment, you can increase or decrease lumbar support in an area of the lower seatback.
  • Page 16 To adjust the front seatback, move the lever rearward. But don’t have a seatback reclined if your vehicle Release the lever to lock the seatback where you want it. is moving. Move the lever again rearward and the seatback will go to an upright position.
  • Page 17 Head Restraints Slide the head restraint up or down that the top of the restraint is closest to the top of your ears. This position reduces the chance of a neck injury in a crash. Sitting in a reclined position when your vehicle is in motion can be dangerous.
  • Page 18 To fold a front split bench Easy Entry Seat (Extended Cab Only) or bucket seatback forward, The manual driver and passenger front bucket seats pull this lever forward and and the manual 60/40 split bench seat of your vehicle fold the seatback forward. have an easy entry feature.
  • Page 19 After returning the seat to its regular position, try to Rear Seat (Extended Cab) move the seat with your body in order to make sure the Folding the Rear Seat seat is locked into place. The Extended Cab may have a rear folding seat which can be folded up provide more cargo space.
  • Page 20 Rear Seat (Crew Cab) 2. Lift the entire seat and push it rearward The rear seatback without a center armrest can be folded into place. forward to let you reach the area behind it. Your seatback will move back and forth freely, unless you come to a sudden stop.
  • Page 21 Safety Belts: They’re for Everyone to use This part of the manual tells you how safety belts properly. It also tells you some things should not do with safety belts. It is extremely dangerous to ride in a cargo area, In a inside or outside of a vehicle.
  • Page 22 If you You never Know if you’ll be in a crash. do have Why Safety Belts Work crash, you don’t know if it will be a bad one. When you ride in or anything, you go as fast as A few crashes are mild, and some crashes can be so it goes.
  • Page 23 Put someone on Get it up to speed. Then stop the vehicle. The rider doesn’t stop. 1-11...
  • Page 24 the instrument panel The person keeps going until stopped by something. In a real vehicle, it could be the windshield 1-12...
  • Page 25 Here Are Questions Many People Ask About Safety Belts and the Answers Won’t be trapped in the vehicle after an accident if I’m wearing a safety belt? You could be whether you’re wearing a safety belt or not. But you can unbuckle a safety belt, even if you’re upside down.
  • Page 26 If I’m How to Wear Safety Belts Properly a good driver, and I never drive far from home, why should I wear safety belts? Adults You may be an excellent driver, but if you’re in an This part is only for people of adult size. accident even one that isn’t your fault you and...
  • Page 27 3. Pick up the latch plate and pull the belt across you. The lap part of the belt should be worn low and snug on Don‘t let get twisted. the hips, .just touching the thighs. In a crash, this applies force to the strong pelvic bones.
  • Page 28 To move it down, push in at the word PRESS and move Shoulder Belt Height Adjuster the height adjuster to the desired position. You can move Before you begin to drive, move the shoulder belt the adjuster up just by pushing up on the shoulder belt adjuster to the height that is right for you.
  • Page 29 What’s wrong with this? You can be seriously hurt if your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit against your body. The shoulder belt is too loose. It won’t give nearly as much protection this way.
  • Page 30 What's wrong with this? CAUTION': You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not at the pelvic bones.
  • Page 31 &: What’s wrong with this? WTION: You can be seriously injured if your belt goes over an armrest like this. The belt would be much too high. In a crash, you can slide under the belt. The belt force would then be applied at the abdomen, not at the pelvic bones, and that could cause serious or fatal injuries.
  • Page 32 What’s wrong with this? You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the ribs, which aren’t as strong as shoulder bones.
  • Page 33 Q." What's wrong with this? You can be seriously injured by a twisted belt. In a crash, you wouldn't have the full width of the belt to spread impact forces. If a belt is twisted, make it straight so it can work properly, or ask your dealer to fix it.
  • Page 34 Safety Belt Use During Pregnancy Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to be seriously injured if they don't wear safety belts. unlatch the beIt, just push the button the buckle. The belt should back out of the way.
  • Page 35 Air Bag System The best way to protect the fetus is to protect the mother. When a safety belt is worn properly, it’s more This part explains the air bag system. likely that the fetus won’t be hurt in a crash. For pregnant women, as for anyone, the key to making Your vehicle may have a safety belts effective is wearing them properly.
  • Page 36 Air bags inflate with great force, faster than the blink of an eye. If you’re too close to an inflating air bag, it could seriously injure you. This is true You can be severely injured or killed in a crash if even with reduced-force frontal air bags.
  • Page 37 There is an air bag readiness light on the instrument panel, which shows AIR BAG. Children who up against, or very close to, an air bag when it inflates can be seriously injured or killed. This is true even though your vehicle has reduced-force frontal air bags.
  • Page 38 How the Air Bag System Works The right front passenger’s air bag is in the instrument panel on the passenger’s side. Where are the air bags? The driver’s air bag is in the middle of the steering wheel. 1-26...
  • Page 39 as a parked car, the threshold level will be higher. The air bag is not designed to inflate in rollovers, side CAUTION: impacts or rear impacts, because inflation would not help the occupant. If something is between an occupant and an air In any particular crash, one can say whether an air bag, the bag might not inflate properly or...
  • Page 40 How does an air bag restrain? In moderate to severe frontal or near-frontal collisions, even belted occupants can contxt the steering wheel or the instrument panel. bags supplement the protection When an air bag inflates, there is dust in the air. provided by safety belts.
  • Page 41 Your vehicle is equipped with a crash sensing and diagnostic module, whch records information about CAUT-ON: the air bag system. The module records information about the readiness of the system, when the sensors are the right front passenger’s air is turned activated driver’s safety belt usage at deployment.
  • Page 42 Servicing Your Air Bag-Equipped Vehicle NOTICE: Air bags affect how your vehicle should be serviced. places There are parts of the air bag system in several If you damage the covering for the driver’s or the around your vehicle. You don’t want the system to right front passenger’s air bag, the bag may not inflate while someone is working on your vehicle.
  • Page 43 Adding Equipment to Your Air What if I add a snow plow? Will it keep the air bags from working properly? Bag-Equipped Vehicle e.” We’ve designed our air bag systems to work If I add push bumper or a bicycle rack to the properly under a wide range of conditions, front of my vehicle, will it keep the air bags including snow plowing with vehicles equipped...
  • Page 44 Center Passenger Position Lap Belt If your vehicle has front and rear bench seats, someone can sit in the center positions. Rear (Extended and Crew Cab) 1-32...
  • Page 45 Front Rear (Extended and Crew Cab) ( A l l ) When you sit in a center seating position, you have a lap safety belt, which has no retractor. To make the belt longer, tilt the latch plate and pull it along the belt. 1-33...
  • Page 46 Rear Seat Passengers It’s very important for rear seat passengers to buckle up! Accident statistics show that unbelted people in the rear seat are hurt more often in crashes than those who are wearing safety belts. Rear passengers who aren’t safety belted can be thrown out of the vehicle in a crash.
  • Page 47 Lap-Shoulder Belt (Extended Cab) The positions next to the windows have lap-shoulder belts. Here’s how to wear one properly. If the belt stops before it reaches the buckle, tilt the latch plate and keep pulling until you can buckle it. Pull up on the latch plate to make sure it is secure.
  • Page 48 The lap part of the belt should be worn low and snug on To make the lap part tight, pull down on the buckle In a the hips, just touching the thighs. crash, this applies pull up on the shoulder part. end of the belt as force to the strong pelvic bones.
  • Page 49 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. To unlatch the belt, just push the button on the buckle. 1-37...
  • Page 50 Rear Seat Outside Passenger Positions (Crew Cab) If you have an Extended Cab, see “Rear Seat Outside Passenger Positions (Extended Cab)” earlier in this section. 1. Pick up the latch plate and pull the belt across you. Don’t let it get twisted. Lap-Shoulder Belt (Crew Cab) 2.
  • Page 51 likely to slide under the lap belt. If you slid under it, the Make sure the release button on the buckle is belt would apply force at your abdomen. This could positioned so you would be able to unbuckle the cause serious or even fatal injuries.
  • Page 52 There is one guide for each outside passenger position in the rear seat. To provide added safety belt comfort for children who have outgrown child restraints and for smaller adults, the comfort guides may be installed on the shoulder belts. Here’s how to install a comfort guide and use the safety belt: To unlatch the belt, just push the button on the buckle.
  • Page 53 2. Slide the guide under and past the belt. The elastic 3. Be sure that the belt is not twisted and it lies flat. cord must be under the belt. Then, place the guide The elastic cord must be under the belt and the guide over the belt, and insert the two edges of the belt into on top.
  • Page 54 remove and store the comfort guides, squeeze the belt edges together so that you can take them out from the guides. Slide the guide onto the storage clip. Make sure you remove the comfort guide from the belt before fold a rear seat down or use an easy-entry seat, if your vehicle has one.
  • Page 55 Smaller Children and Babies the right type and size for your child. A very young child’s hip bones are so small that a regular belt might not stay low on the hips, as Children who are up against, or very close to, any should.
  • Page 56 at only 25 mph (40 km/h), a 12-1b. (5.5 kg) baby will suddenly become a 240-lb. (110 kg) force on your arms. The baby would be almost impossible to hold. Secure the baby in an infant restraint. Never hold a baby in your arms while riding in a vehicle.
  • Page 57 Child Restraints Every time infants and young children ride in vehicles, they should have protection provided by appropriate restraints. Q.’ What are the different types of add-on child restraints? Add-on child restraints are available in four basic types. When selecting a child restraint, take into consideration not only the child’s weight and size, but also whether or not the restraint will be compatible with the motor vehicle in which it will...
  • Page 58 A rear-facing infant restraint (B) positions an infant to face the rear of the vehicle. Rear-facing infant restraints are designed for infants of up to about 20 Ibs. (9 kg) and about one year of age. This type of restraint faces the rear so that the infant’s head, neck and body can have the support they need in a crash.
  • Page 59 (C-E) positions a A forward-facing child restraint child upright to f x e the vehicle. These folwa-d in forward-facing restraints a-e designed to help protect children who are from 20 to 40 Ibs. (9 to 18 kg) and about 26 to 40 inches (66 to 102 cm) in height, or up to around four years of age.
  • Page 60 A booster seat (F, G) is designed for children who 8 to 27 kg) and about are about 40 to 60 Ibs. four to eight years of age. It's designed to improve the fit of the vehicle's safety belt system. Booster seats with shields use lap-only belts;...
  • Page 61 Where to Put the Restraint (Except When choosing a child restraint, be sure the child restraint is designed to be used in a vehicle. If it is, it Extended Cab and Crew Cab) will have a label saying that it meets Federal Motor The child restraint must be secured properly in the Vehicle Safety Standards.
  • Page 62 Where to Put the Restraint (Extended Cab and Crew Cab) This is because the back of the rear-facing child Accident statistics show that children are safer if they are restrained in the rear rather than the front seat. We at restraint would be very close to the inflating air General Motors therefore recommend that you put your bag.
  • Page 63 Top Strap A child in a rearfacing child restraint can be seriously injured or killed if the right front passenger’s air bag inflates, even though your vehicle has reduced-force frontal air bags. This is because the back of the rearfacing child restraint would be very close to the inflating a i r bag.
  • Page 64 Securing a Child Restraint in a Rear Outside Seat Position (Extended Cab) If you have a Crew Cab, see “Securing a Child Restraint in a Rear Outside Seat Position (Crew Cab)” later in this section. You’ll be using the lap-shoulder belt. See the earlier part Tilt the latch plate to adjust the belt if needed.
  • Page 65 3. Buckle the belt. Make sure the release button is 4. To tighten the belt., pull up on the shoulder belt while positioned so you would be able to unbuckle the you push down on the child restraint. If you're using safety belt quickly if you ever had to.
  • Page 66 5. Push and pull the child restraint in different You’ll be using the lap-shoulder belt. See the earlier part directions to be sure it is secure. about the top strap if the child restraint has one. Be sure to follow the instructions that came with the child To remove the child restraint, just unbuckle the vehicle’s restraint.
  • Page 67 3. Buckle the belt. Make sure the release button is 4. Pull the rest of the lap belt all the way out of the positioned so you would be able to unbuckle the retractor to set the lock. safety belt quickly if you ever had to. 1-55...
  • Page 68 5. To tighten the belt, feed the lap belt back into the retractor while you push down on the child restraint. If you’re using a forward-facing child restraint, you may find it helpful to use your knee to push down the child restraint as you tighten the belt.
  • Page 69 Securing a Child Restraint in a Center Seat Position You’ll be using the lap belt. Be sure to follow the instructions that came with the child restraint. Secure the child in the child restraint when and as the Rear (Extended and Crew Cab) instructions say.
  • Page 70 Rear (Extended and Crew Cab) Front (All) 1. Make the belt as long as possible by tilting the latch plate and pulling it along the belt. 2. Put the restraint on the seat. 3. Run the vehicle’s safety belt through or around the restraint.
  • Page 71 5. To tighten the belt, pull its free end while you push down on the child restraint. If you’re using a forward-facing child restraint, you may find it helpful to use your knee to push down on the child restraint as you tighten the belt. 6.
  • Page 72 Securing a Child Restraint in the Right Front Seat Position (Crew Cab) You’ll be using the lap-shoulder belt. See the earlier part about the top strap if the child restraint has one. Be sure to follow the instructions that came with the child restraint.
  • Page 73 4. Pull the rest of the lap belt all the way out of the 5 . To tighten the belt, feed the lap belt back into the retractor to set the lock. retractor while you push down on the restraint. child find helpful to use your knee to...
  • Page 74 To remove the child restraint, just unbuckle the vehicle’s safety belt and let it go back all the way. The safety belt will move freely again and be ready to work for an adult or larger child passenger. Securing a Child Restraint in the Right Front Seat Position (Except Crew Cab) If your vehicle has air bags, there is a switch on the instrument panel that you can use to turn off the right...
  • Page 75 CAUTION: ’ A child in a rear-facing child restraint can be seriously injured or killed if the right front passenger’s air bag inflates, even though your vehicle has reduced-force frontal bags. This is because the back of the rear-facing child restraint would be very close to the inflating air bag.
  • Page 76 3. Pick up the latch plate, and run the lap and shoulder portions of the vehicle’s safety belt through around the restraint. The. child restraint instructions how. will show you If the air bag readiness light ever comes on when If the shoulder belt goes in front of the child’s face or the air bag, it means that you have turned...
  • Page 77 5. Pull the rest of the lap belt all the way out of the 6. To tighten the belt, feed the lap belt back into the retractor to set the lock. retractor while you push down on the child restraint. If you’re using a forward-facing child restraint, you may find it helpful to use your knee to push down on the child restraint as you tighten the belt.
  • Page 78 To remove the child restraint, just unbuckle the vehicle’s safety belt and let it go back all the way. The safety belt will move freely again and be ready to work for an adult or larger child passenger. If the right front passenger’s air bag is turned If your vehicle has air bags, turn on the right front off, the person sitting there won’t have the extra passenger’s air bag when you remove the rear-facing...
  • Page 79 Accident statistics show that children are safer if they Larger Children are restrained in the rear seat. But they need to use the safety belts properly. Children who aren’t buckled up can be thrown out in a crash. Children who aren’t buckled up can strike other people who are.
  • Page 80 Never do this. Here two children are wearing the same belt. The belt can’t properly spread the impact forces. In crash, the two children can be crushed together and seriously injured. A belt must be used by only one person at a time. What if a child is wearing a lap-shoulder belt, but the child is so small that the shoulder belt is very close to the child’s face or neck?
  • Page 81 CAUTION: Never do this. Here a child is sitting in a seat that has a lap-shoulder belt, but the shoulder part is behind the child. If the child wears the belt in this way, in a crash the child might slide under the belt. The belt’s force would then be applied right on the child’s abdomen.
  • Page 82 Safety Belt Extender Replacing Restraint System Parts After a Crash the vehicle’s safety belt will fasten around you, you should use it. If you’ve had a crash, do need new belts? But if a safety belt isn’t long enough to fasten, your After a very minor collision, nothing may be necessary.
  • Page 83 1-71...
  • Page 84 NOTES 1-72...
  • Page 85 Controls Section 2 Features and Here you can learn about the many standard and optional features on your vehicle, and information on starting, shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is working properly -- and what to do if you have a problem.
  • Page 86 Keys Leaving young children in a vehicle with the ignition key is dangerous for many reasons. A child or others could be badly injured or even killed. They could operate power windows or other controls or even make the vehicle move. Don't leave the keys in a vehicle with young children.
  • Page 87 Your vehicle has one Tailgate double-sided key for the can open the tailgate by lifting up on its handle ignition and all door locks. while pulling the tailgate toward you. shut the tailgate, firmly push it away from you into the latch.
  • Page 88 Third Door (If Equipped) To remove the tailgate: Raise the tailgate slightly and release both retaining cable clips. To release the retaining cable clips, pull the retaining cable clip away from the cable end. Lift the cable so points straight out and push the cable clips forward.
  • Page 89 Door Locks To lock the door from the inside, slide the lever on your door down. CAUTION: Unlocked doors can be dangerous. Passengers especially children can easily open the doors and fall out. When a door is locked, the inside handle won't open it. Outsiders can easily enter through an unlocked door when you slow down or stop your vehicle.
  • Page 90 Your interior lamps will be illuminated for a set period Power Door Locks (If Equipped) of time when the transmitter signal is received by the Press the bottom of the Keyless Entry System. In addition, your vehicle’s horn power door lock switch, will chirp if you press the LOCK button twice, to let you marked LOCK, on either know that the doors have locked.
  • Page 91 This system has a range of about 3 feet (1 m) up to Press the LOCK button to lock all the doors (except the third door). The interior lamps will come on for 30 feet (9 m). At times you may notice a decrease in range.
  • Page 92 To replace the battery: Battery Replacement Under normal use, the battery your remote keyless entry transmitter should last about years. You can tell the battery is weak if the transmitter won't work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it's probably time to change the battery.
  • Page 93 When you park your vehicle and open the driver's door, Synchronization you'll hear a tone reminding you remove your key Synchronization may be necessary d ~ t e to the security from the ignition and take it with you. Always do this. method used by this system.
  • Page 94 New Vehicle “Break-In” Passlock@ Your vehicle is equipped with the Passlock theft-deterrent system. NOTICE: Passlock is a passive theft-deterrent system. The system is armed once the key is removed from the ignition. Your vehicle doesn’t need an elaborate Passlock enables fuel if the ignition lock cylinder is “break-in.”...
  • Page 95 LOCK (B): This position locks your ignition, steering Ignition Positions wheel and transmission. It’s a theft-deterrent feature. You can use your key to turn your ignition switch to five You will only be able to remove your key when the different positions.
  • Page 96 To remove the key on n-mual transmission vehicles, NOTICE: turn the key to OFF, then press the button and turn the LOCK. Do not hold the button i n while turning the key to OFF. Keeping your finger on the button, pull If your key seems stuck in LOCK and you can’t the key straight out.
  • Page 97 3. I f your engine still won’t start (or starts but then Manual Transmission stops), wait seconds and start over. The gear selector should be in NEUTRAL ( N ) and the When the engine starts, let go of the key and the parking brake engaged.
  • Page 98 3. Plug grounded 110-volt AC outlet. Engine Coolant Heater (If Equipped) it into a normal, Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a fire. You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet.
  • Page 99 Automatic Transmission Operation It is dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. Don’t leave your vehicle when the engine is running unless you have to.
  • Page 100 (R): REVERSE Use this gear to back up. CAUTION: NOTICE: Shifting out of PARK (P) or NEUTRAL (N) while ~ _ _ _ your engine is "racing" (running at high speed) is Shifting to REVERSE while your vehicle dangerous. Unless your foot is firmly on the is moving forward could damage your brake pedal, your vehicle could move very transmission.
  • Page 101 If you manually select SECOND (2), the transmission will AUTOMATIC OVERDRIVE This position is (@): drive in second gear. You may use this feature for reducing for normal driving. If you need more power for passing, and you’re: torque to the rex wheels when you are trying to start your vehicle from a stop on slippery road surfaces.
  • Page 102 Manual Transmission Operation try to shift down into FIRST (1) at excessive vehicle speeds, the shift lever will not move into the FIRST 5-Speed (MW3 Transmission with position until vehicle speed is reduced. Low Gear) (If Equipped) SECOND (2): Press the clutch pedal and shift into SECOND (2).
  • Page 103 NEUTRAL (N): Use this position when you start or You can shift into FIRST (1) when you’re going less than 20 mph km/h). If you’ve come to a complete idle your engine. stop and it’s hard shift into FIRST (l), put the shift REVERSE (R): To back up, first press down the clutch lever into NEUTRAL (N) and let up the clutch.
  • Page 104 Up Shift Light NOTICE: If you have manual transmission, you have Shift to REVERSE only after your vehicle is a SHIFT light. This light stopped. Shifting to REVERSE while your will show you when to shift vehicle is moving could damage your transmission. to the next higher gear for SHIFT best fuel economy.
  • Page 105 Four-wheel Drive (If Equipped) Manual Transfer Case (If Equipped) If your vehicle has four-wheel drive, you can send your extra engine’s driving power to all four wheels for traction. To get the most satisfaction out of four-wheel drive, you must be familiar with its operation. Read the part that follows before using four-wheel drive.
  • Page 106 4-Wheel High (4H): This setting engages your front axle to help drive your vehicle. Use 4H when you need extra traction and in most off-road situations. NEUTRAL (N) Shifting the transfer case to cause your vehicle to roll even if the transmission is in PARK (P), or if you have a manual transmission, even if you are in gear.
  • Page 107 You can shift from 2-WHEEL HIGH (2H) to 4-WHEEL When your headlamps or parking lamps are on, rotate the HIGH (4H) or from 4-WHEEL HIGH (4H) to thumb wheel next to the headlamp switch up brighten 2-WHEEL HIGH (2H) while the vehicle is moving. or down to dim your transfer case indicator light.
  • Page 108 Shifting from 2HI to 4HI Use these switches to shift into and out of four-wheel drive. You can choose among three driving settings: Press and release the 4HI switch. This can be done at 2HI: This setting is for driving in most street and any speed, and the front axle will lock automatically highway situations.
  • Page 109 Shifting from 4LO to 4HI or 2HI Pull the lever, located just above the parking shift from 4LO to 4HI or 2H1, your vehicle must be brake pedal, marked k m / h ) mph (4.8 stopped or moving less than with the BRAISE RELEASE.
  • Page 110 If you are towing a trailer Shifting Into PARK (P) (Automatic and are parking on any hill, see “Towing a Trailer” in the Index. That section shows Transmission Only) what to do first keep the trailer from moving. If you have a 3500 HD model, it is recommended that the propshaft mounted parking brake be burnished as CAUTION: part of the new vehicle break-in.
  • Page 111 Hold the brake pedal down with your right foot and set the parking brake. PARK position like this: Move the shift lever into Move the lever up as far as it will go. If you have four-wheel drive, be sure the transfer ( N ) .
  • Page 112 Leaving Your Vehicle With the Engine If you have to leave your vehicle with the engine running, be sure your vehicle in PARK and the Running (Automatic Transmission Only) parking brake is firmly set before you leave it. After you (P), move the shift lever into PARK hold the regular...
  • Page 113 Parking Your Vehicle Shifting Out of PARK (P) (Manual Transmission Models Only) (Automatic Transmission) Before you get out of your vehicle, put your manual Your vehicle has a brake-transmission shift interlock (R), system. You have to fully apply your regular brakes transmission in REVERSE turn off the engine, and before you can shift from PARK...
  • Page 114 ng Over Things That Burn Engine Exhaust Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you can’t see or smell. It can cause unconsciousness and death. You might have exhaust coming in Your exhaust system sounds strange or different.
  • Page 115 Running Your Engine While You’re CAUT- IN: Parked (Automatic ission) It’s better not to park with the engme rblllling. But if can be dangerous to get out of your vehicle if ever you have to, here are some things to know. the shift lever is not fully in PARK with the parking brake firmly set.
  • Page 116 Power Windows (If Equipped) Locking Rear Axle (If Equipped) If you have this feature, your locking rear axle can give you additional traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, this feature will allow the wheel with traction to move the vehicle.
  • Page 117 Press the rear of the switch with the power window symbol on it to lower the window. Press the front of the switch with the power window symbol it to raise the window. The driver’s window also has an express down feature that allows the window to be lowered without holding the switch.
  • Page 118 Swing-Out Windows (Extended Cab) Horn On air bag-equipped vehicles, press the air bag module in the center of the steering wheel to sound the horn. On vehicles not equipped with an air bag, press the pad in the center of the steering wheel to sound the horn. Tilt Wheel (If Equipped) A tilt steering wheel allows you to adjust the steering...
  • Page 119 Turn Signal and Lane Change Signals Turn SignaVIWultifunction Lever The turn signal has two upward (for right) and two downward (for left) positions. These positions allow you to signal a turn or a lane change. To signal a turn, move the lever all the way up or turn down.
  • Page 120 bulb is burned out, replace it help avoid an Windshield Wipers go on accident. the arrows don’t at all when you You control the windshield check signal a turn, for burned-out bulbs and blown wipers by turning the knob fuse (see “Fuses and Circuit Breakers” in the Index). with the wiper symbol on it.
  • Page 121 steady wiping at low speed, turn the knob to the LOW Windshield Washer position. For high-speed wiping, turn the knob hrther, to At the top of the lever, HIGH. To stop the wipers, move the knob to OW. there’s a paddle with the % : .
  • Page 122 Washer fluid will spray as long as you push the paddle. When you let go of the paddle, the wipers will continue ‘JTIOT to wipe for a few seconds and then e.ither stop or return to the preset speed. Cruise control can be dangerous where you The use of a hood-mounted air deflector may adversely can’t drive safely at a steady speed.
  • Page 123 Resuming a Set Speed Suppose you set your cruise control at a desired speed and then you apply the brake. This, of course, shuts off the cruise control. But yo11 don’t need to reset it. Once you’re going about 25 mph (40 k d h ) more, can move the cruise...
  • Page 124 Increasing Speed While Using Cruise Control Passing Another Vehicle While Using Cruise Control ways to go to a higher speed: There are two Use the accelerator pedal to increase your speed. When foot you take your off the pedal, your vehicle will slow Use the accelerator pedal to get to higher speed.
  • Page 125 Ending Cruise Control Exterior Lamps There are two ways to turn off the cruise control: Step lightly on the brake pedal or Move the cruise switch to OFF. Erasing Speed Memory Your parking lamp and headlamp switch is on the driver's side of your instrument panel.
  • Page 126 Clearance Lamps (If Equipped) ACCESSORY, the buzzer can be turned off by turning the thumb wheel next to the parking lamp/headlamp Taillamps knob all the way down. License Plate Lamps Daytime Running Lamps Instrument Panel Lights Daytime Running Lamps (DRL) can make easier for Transfer Case Shift Indicator Light others to see the front of your vehicle during the day.
  • Page 127 To idle your vehicle with the DRL off, set the parking Remember, fog lamps alone will not give off as much brake. The DRL will stay off until you release the light as your headlamps. Never use your fog lamps in parking brake.
  • Page 128 Front Reading Lamps (If Equipped) If your vehicle has reading lamps, press the button next to the lamp to turn the lamp on. The lamps can be adjusted to point in the direction you want. Press the button again to turn the lamp off. Dome Lamps You can use the DOME OVERRIDE button, located below the parking/headlamp knob, to set the dome...
  • Page 129 Cargo Lamp Mirrors Press the ribbed top part of Inside Daymight Rearview Mirror the switch to turn the cargo lamp on. Press the bottom of the switch to turn it off. The dome lamp switch must be on or one of the doors Pull the tab under the mirror rearward to reduce glare open for the cargo lamp to work.
  • Page 130 Mirror Operation The right side of the switch located at the bottom of the mirror turns the electrochromic mirror on and off. The AUTO LED will come on when the electrochromic mirror is turned on. To turn the mirror on, press and hold the The mirror also includes an eight-point compass display in MIRROR button for three seconds.
  • Page 131 The mirror can be calibrated in one of two ways: Compass Operation Drive the vehicle in circles at five mph (8 km/hj or Press the COMP switch once briefly to turn the compass less until the display reads a direction, or on or off.
  • Page 132 The use of hood-mounted air deflectors and add-on convex mirror attachments may adversely affect mirror performance. Camper Type Outside Mirrors (If Equipped) 4. Press the COMP button on the bottom of the mirror until the new zone number appears in the display. After you stop pressing the button in, the display will show a compass direction within a few seconds.
  • Page 133 1. To adjust the mirrors when hauling 2. Rotate the mirror head, so that the mirror surface slide-in camper or towing trailer, rotate the mirror by pushing the faces the rear of the vehicle. mirror head toward the front of the vehicle. 2-49...
  • Page 134 West Coast Type Outside Mirrors backward or forward. You can also loosen the nut (C) the top and bottom of the outer mirror frame to tilt the (If Equipped) mirror head. your vehicle is equipped with the west coast type Electric Outside Rearview Mirrors mirrors, they can be adjusted so you can have a clear you.
  • Page 135 Some models have a storage pocket on each of the front doors. Some vehicles have a storage area behind the seat. A convex mirror can make things (like other Glove Box vehicles) look farther away than they really are. To open your glove box, move the button toward the If you cut too sharply into the right lane, you passenger’s side and pull the door open.
  • Page 136 2. Peel the protective 4. Add one peg at a time backing from the hook until the PUSH button and loop patch. Press it the compartment door firmly to the back of operates the garage door your garage door opener, opener, with the as close to the center of compartment door closed,...
  • Page 137 Sunglasses Storage Compartment 5. Now, with the compartment door The center overhead compartment can be used to closed, press the conveniently store your sunglasses. button marked PUSH To open the center compartment, press the release again to make sure the button located at the rear of the compartment door.
  • Page 138 Instrument Panel Cupholder Center Console Storage Area (If Equipped) Your vehicle has a cupholder in the middle of the Your vehicle may have a console compartment between instrument Danel. the bucket seats..To use the cupholder, pull the handle and slide the cupholder tray open.
  • Page 139 Your console may have a Your vehicle may have a cupholder that swings out memo holder attached to for the back seat passengers front of the console. Use to use. to hold pads of paper or similar items. There may also be a drawer Your vehicle may have a that slides out from the cassette/compact disc holder...
  • Page 140 The cassettekompact disc Armrest Storage Compartment holder can be removed and (If Equipped) replaced with a cupholder that is located in the center console storage area. To remove the cassettekompact disc holder, pull the front of the holder toward vou and then lift it up. To insert the cupholder, place it in the console.
  • Page 141 The storage compartment has a cassette/conlpact disc The storage compartment also has a folding writing holder. The holder w i l l store up to five compact disc table on top of the armrest lid. cases and LIP to six cassette tape cases. To use the writing table, pull the latch at the rear o f the and swing the writing table...
  • Page 142 Rear Ashtray (If Equipped) Ashtrays and Cigarette L To use a rear ashtray, if you have them, pull at the top of Front Ashtray the ashtray door to flip the door open. The front ashtray is located at the bottom of the To remove a rear ashtray, press down on the inside tabs instrument panel.
  • Page 143 Two auxiliary power outlets are located near the ’ NOTICE: cigarette lighter. Use these outlets to power mobile telephones or other devices designed to operate with vehicle electrical systems. Holding a cigarette lighter in with your hand while it is heating can make it overload, Sun Visors damaging the lighter and the heating element.
  • Page 144 Instrument Panel 2-60...
  • Page 145 A. Dome Lamp Switch Cupholder L. Auxiliary Power Outlets B. Lamp Controls Storage Area or Compact Disc Player (If Equipped) C. Air Outlets D. Multifunction Lever N. Rear Window Defogger Switch (If Equipped) E. Instrument Cluster 0. Passenger Air Bag Off Switch (If Equipped) P.
  • Page 146 Instrument Panel Cluster CHECK SECURITY GAGES ANTI LOCK l o l o l o l o 1 APPLY BRAKE T O SHIFT FROM PARK oolol TRIP United States version shown, Canada similar Your instrument cluster is designed to let you know at a glance how your vehicle is running.
  • Page 147 Speedometer and Odometer To reset the trip odometer, fully press the reset button located near the trip odometer readout. If the reset Your speedometer lets you see your speed in both miles button is not fully pressed, the trip odometer may not go per hour (mphj and kilometers per hour (km/hj.
  • Page 148 Warning Lights, Gages When one of the warning lights comes on and stays on when you are driving, or when one the gages shows and Indicators there may be a problem, check the section that tells you what to do about it. Please follow this manual’s advice. This part describes the warning lights and gages that Waiting to do repairs can be costly and even...
  • Page 149 Air Bag Readiness Light AIR BAG OFF Light (Except Crew Cab) When you turn the right front passenger’s air bag off, this There is an air bag readiness light on the instrument panel, which shows AIR BAG. The system checks the a i r bag’s light will come on and stay on to remind you that the a i r...
  • Page 150 CAUTION: If the right front passenger’s air bag is turned If the air bag readiness light ever comes on when off, an adult or a child who is no longer an infant you have turned off the air bag, it means that sitting in the right front passenger’s position something may be wrong with the air bag system won’t have the extra protection of an air bag.
  • Page 151 Readings in the low warning zone may occur when a After the engine starts, the light should go out. If it stays large number of electrical accessories are operating in on or comes on while you are driving, you may have a the vehicle and the engine is left at an idle for an problem with your charging system.
  • Page 152 the warning light comes there co11ld be a brake problem. Have your brake system inspected right away. This light should come on ( a ) Your brake system may not be working properly briefly when you turn the ignition key to RUN. If it if the brake system warning light is on.
  • Page 153 It also provides an indicator of how hard your vehicle is If the light stays on, or comes on when you’re driving, your vehicle needs service. If the regular brake system working. During a majority of the operation, the gage will read 210°F (100°C) or less.
  • Page 154 This system is called OBD I1 (On-Board This light will also come on during a malfunction in one Diagnostics-Second Generation) and is intended to of two ways: assure that emissions are at acceptable levels for the life Light Flashing -- A misfire condition has been of the vehicle, helping to produce a cleaner detected.
  • Page 155 Turn the key off, wait at least 10 seconds and restart the As your engine starts to run out of fuel, your engine may not run as efficiently as designed since small amounts of engine. If the light remains on steady, see “If the Light Is On Steady”...
  • Page 156 Oil Pressure Gage The oil pressure gage shows the engine oil pressure in psi Don’t keep driving if the oil pressure is low. If (pounds per square inch) you do, your engine can become so hot that it when the engine running.
  • Page 157 Security Light Up Shift Light (If Equipped) This light will come on This light is used on briefly when you turn the some models with key to START. manual transmissions. SECURITY The light will stay on until the engme starts. If the light The SHIFT indicator light will help you get the best fuel flashes, the Passlock@ System has entered a tamper economy.
  • Page 158 : : : o Daytime Running Lamps Indicator Light Check Gages Light This light goes whenever This light will come the DRL are on. briefly when you are starting the engine. CHECK GAGES When it begins to get dark, the DRL indicator light is a If the light comes on and stays on while you are driving, reminder to turn on your headlamps.
  • Page 159 Fuel Gage Here are four situations you may experience with your fuel gage. None of these indicate a problem with the The fuel gage, when the fuel gage. ignition is on, tells you At the gas station, the fuel pump shuts off before the about how much fuel you gage reads FULL (F).
  • Page 160 2-76...
  • Page 161 Section 3 Comfort Controls and Audio Systems In this section, you’ll find out how to operate the comfort control and audio systems offered with your vehicle. Be sure to read about the particular systems supplied with your vehicle. Comfort Controls CD Adapter Kit 3 -4 Air Conditioning...
  • Page 162 Comfort Controls Temperature Knob The middle knob on the control panel lets you select the Heater Control System relative temperature of the air flowing into the passenger area of your vehicle. This knob will allow you to adjust the relative air temperature independently of the function knob setting.
  • Page 163 +’ Fan Knob DEFOG: This setting directs air to the heater The knob on the left side of the heating system control outlets and toward the windshield. panel controls the fan speed. The knob has four speed positions. To increase airflow. move the knob toward DEFROST: This setting directs air toward HI.
  • Page 164 The recirculation button, between the fan and Mode Knob temperature knobs, allows the air inside your vehicle to The right knob on the control panel allows you to be recirculated. This setting helps to maximize your air choose the direction of air delivery. The control knob conditioner’s performance and your vehicle’s fuel can be placed in any position between two mode settings economy.
  • Page 165 Heating Outside air will also enter the vehicle when the heater or the air conditioning fan is running, unless you have the The heater works best if keep your windows closed recirculation button pushed in. For more information on while using it. On cold days, use the HEATER or the recirculation button, see “Air Conditioning’’...
  • Page 166 Ventilation Tips Rear Window Defogger (If Equipped) Keep the hood and front air inlet free of ice, snow or If you see lines running across the rear window, you any other obstruction (such as leaves). The heater have a rear window defogger. The lines warm the glass. and defroster will work far better, reducing the To turn on the rear window chance of fogging the inside of your windows.
  • Page 167 Setting the Clock for Systems with NOTICE: Automatic Tone Control Press and hold HR until the correct hour appears on the Don’t use a razor blade or something else sharp display. Press and hold MN until the correct minute on the inside of the rear window. If you do, you appears on the display.
  • Page 168 PUSHBUTTONS: The four numbered pushbuttons let Playing the Radio you return to your favorite stations. You can set up VOLUME: This knob turns the system on and off and 14 stations (seven AM and seven FM). Just: controls the volume. To increase volume and turn the 1.
  • Page 169 Setting the Tone AM-FM Stereo with Cassette Tape Player (If Equipped) BASS: Slide this lever up or down to increase or decrease bass. TREB: Slide this lever up or down to increase or decrease treble. If a station is weak or noisy, you may want to decrease the treble.
  • Page 170 In addition to the four stations already set, up to three Finding a Station more stations may be preset on each band by pressing AM-FM: Press the lower knob to switch between AM, two adjoining buttons at the same time. Just: F M l and FM2.
  • Page 171 Setting the Tone Once the tape is playing, use the knobs for VOLUME, BAL FADE, BASS and TREB just as you do for BASS: Slide this lever up or down to increase or the radio. decrease bass. REV Press the SEEK left arrow to reverse the cassette TREB: Slide this lever up or down to increase or tape.
  • Page 172 AM-FM Stereo with Cassette Tape and SCV Your system has a feature called Speed-Compensated-Volume (SCV). With SCV, your Automatic Tone Control (If Equipped) audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level.
  • Page 173 continuing to scan through all of the pushbuttons. Press SCAN: Press and hold SEEK for two seconds until P. SCAN again or one of the pushbuttons to stop SCAN appears on the display. SCAN allows you to scanning to listen to a specific preset station. P. SCAN listen to stations for a few seconds.
  • Page 174 CLASSIC, NEWS, ROCK, POP, C/W To load a cassette tape with the ignition off, press settings EJECT or RECALL. Then, insert the cassette tape. (CountryNestern) or JAZZ, To return to the manual If the ignition is on but the radio is off, the tape will mode, press and release this button until the AUTO TONE display goes blank.
  • Page 175 REV (4): Press this button to rapidly reverse the tape to the ignition or radio off, press EJECT before loading the beginning of the cassette or until you press REV the cassette. again. The radio will play the last selected station while CLN: If this message appears on the display, the reversing the tape.
  • Page 176 AM-FM Stereo with Compact Disc Player and wind noise as you drive. Set the volume at the desired level. Move the control ring behind the upper and Automatic Tone Control (If Equipped) knob to the right to adjust the SCV. Then, as you drive, SCV automatically increases the volume, as necessary, to overcome noise at any particular speed.
  • Page 177 PUSHBUTTONS: The six numbered pushbuttons let Setting the Tone return to your favorite stations. You can set up to BASS: Press lightly on this knob to release it from its 18 stations (six AM, six FM 1 and six FM2). Just: stored position.
  • Page 178 ap$e*s Adjusting the Speakers If the disc comes back out and ERR 8 n the display, could be that: BAL: this knob to release it from its Press lightly stored position. Turn the control to the right to adjust You are driving o n a very rough road. (The disc sound to the right speakers and to the left to adjust should play when the road gets smoother.) sound...
  • Page 179 NEXT (3): Press NEXT or the SEEK right arrow to AM-FM: While in the CD mode, press this button to search for the next selection. If you hold this button or stop playing the CD and play the radio. The CD symbol press it more than once, the disc will advance further.
  • Page 180 Remote Compact Disc Player (If Equipped) remove the disc, press the EJECT button and remove the disc from the player. All of the compact disc functions are controlled by the radio buttons except for EJECT. When a disc is in the player, a CD symbol will appear on the display.
  • Page 181 TAPE AUX: With a disc loaded in the player and the REV (4): Press and hold this button to quickly reverse within a track. As the CD reverses, elapsed time will be radio playing, press this button once to play the compact disc.
  • Page 182 Press AM-FM after you have confirmed that the Activating the Theft-Deterrent Feature code matches the secret code you have written down. The instructions which follow explain how to enter your The display will show REP to let you know that you secret code to activate the THEFTLOCK system.
  • Page 183 If you enter the wrong code eight times, INOP will If the code entered is incorrect, SEC will appear on the appear on the display. You will have to wait an hour display. The radio will remain secured until the correct with the ignition on before you can try again.
  • Page 184 Tips About Your Audio System NOTICE: Hearing damage from loud noise is almost undetectable until it is late. Your hearing can adapt higher to your Before you add any sound equipment volumes of sound. Sound that seems normal can be loud vehicle like a tape player, CB radio, mobile and harmful to your hearing.
  • Page 185 Care of Your Cassette Tape Player When using a scrubbing action, non-abrasive cleaning cassette, it is normal for the cassette to eject while A tape player that is not cleaned regularly can cause cleaning because your unit is equipped with a cut tape reduced sound quality, ruined cassettes or a damaged detection feature and some cleaning cassettes may mechanism.
  • Page 186 Care of Your Compact Discs your vehicle equipped with the AM-FM Stereo with Cassette Tape Player and Automatic Tone Control: Handle discs carefully. Store them in their original cases 1. Turn the ignition to RUN or ACCESSORY. or other protective cases and away from direct sunlight 2.
  • Page 187 NOTES...
  • Page 188 NOTES 3-28...
  • Page 189 Section 4 Yoiir Driving and the Road Here you’ll find information about driving on different kinds of roads and in varying weather conditions. We’ve also included many other useful tips on driving. 4- 2 Defensive Driving 4-3 1 City Driving 4- 2 Drunken Driving 4-32...
  • Page 190 Defensive driving really means “be ready for anything.” On city streets, rural roads or freeways, it means “always expect the unexpected.” Assume that pedestrians or other drivers are going to be careless and make mistakes. Anticipate what they might do. Be ready for their mistakes. Rear-end collisions are about the most preventable of accidents.
  • Page 191 The obvious way to solve this highway safety problem Drunken Driving is for people never to drink alcohol and then drive. But Death and injury associated with drinking and driving is what if people do? How much is “too much” if the a national tragedy.
  • Page 192 Since alcohol is carried in body water, this means that a woman generally will reach a higher BAC level than a man of her same body weight when each has the same number of drinks. The law in many U.S. states sets the legal limit at a BAC of 0.10 percent.
  • Page 193 The body takes about an hour to rid itself of the alcohol in one drink. No amount of coffee or number of cold CAUTION: showers will speed that up. “I’ll be careful” isn’t the right answer. What if there’s an emergency, a need to Drinking and then driving is very dangerous.
  • Page 194 Average reaction time is about 3/4 of a second. But that’s only an average. It might be less with one driver as long as two or three seconds or more with another. Age, physical condition, alertness, coordination and eyesight all play a part. So do alcohol, drugs and frustration.
  • Page 195 engine If your ever stops while you’re driving, brake normally but don’t pump your brakes. If you do, the pedal may get harder to push down. If your engine stops, you will still have some power brake assist. But you will use it when you brake. Once the power assist is used up, it may take longer stop and the brake pedal will be harder to push.
  • Page 196 The anti-lock system can change the brlzke pressure faster Remember: Anti-lock doesn’t change the time you need than any driver could. The computer is programmed to to get your foot up to the brake pedal o r always decrease make the most of available tire and road conditions. stopping distance.
  • Page 197 Speed Sensitive Steering Suppose you’re steering through a sharp curve. Then you suddenly accelerate. Both control This system varies the amount of steering effort systems -- steering and acceleration -- have to do their proportionate to your vehicle speed. Steering is easier at work where the tires meet the road.
  • Page 198 Steering in Emergencies There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or a car suddenly pulls out from nowhere, or child darts out from between parked cars and stops right in front of you.
  • Page 199 Off-Road Recovery Passing You may find that your right wheels have dropped off the The driver of a vehicle about to pass another on a edge of a road onto the shoulder while you‘re driving. two-lane highway waits for just the right moment, accelerates, lnoves around the vehicle ahead, then goes back into the right lane again.
  • Page 200 Do not get too close to the vehicle want to pass Check your mirrors, glance over your shoulder and start your left lane change signal before moving out while you’re awaiting an opportunity. For one thing, following too closely reduces your area of vision, of the right lane to pass.
  • Page 201 If your vehicle starts to slide, ease your foot off the Loss of Control accelerator pedal and quickly steer the way you want the Let’s review what driving experts say about what vehicle to go. I f you start steering quickly enough, your happens when the three control systems (brakes, steering vehicle may straighten out.
  • Page 202 Off-Road Driving with Your Before You Go Off-Roading Four-Wheel-Drive Vehicle There are some things to do before you go out. For example, be sure to have all necessary maintenance and This off-road guide is for vehicles that have service work done. Check to make sure all underbody four-wheel drive.
  • Page 203 Environmental Concerns Off-road driving can provide wholesome and satisfying recreation. However, also raises environmental concerns. GM recognizes these concerns and urges Cargo on the load floor piled higher evesy off-roader to follow these basic rules for the seatbacks can be thrown forward protecting the environment: your during a sudden stop.
  • Page 204 Controlling your vehicle is the key to successful Traveling to Remote Areas off-road driving. One of the best ways to control your It makes sense to plan your trip, especially when going vehicle is control your speed. Here are some things to to a remote area.
  • Page 205 When you drive over obstacles or rough terrain, keep a Scanning the Terrain firm grip on the steering wheel. Ruts, troughs or other Off-road driving can take you over many different kinds out of surface features can jerk the wheel your hands if of terrain.
  • Page 206 incline may get steeper as you near the top, but you may Driving on Off-Road Hills the hill is hidden by not see this because the crest Off-road driving often takes up, down or across a bushes, grass shrubs. hill. Driving safely on hills requires good judgment and Here are some other things to consider as you approach an understanding of what your vehicle can and can‘t do.
  • Page 207 Ease up on your speed as you approach the top of Driving Uphill the hill. Once you decide you can safely drive up the hill, you Attach a flag to the vehicle to make you more visible need to take some special steps. to approaching traffic on trails or hills.
  • Page 208 What should I do if my vehicle stalls, or is about back down the hill with your wheels straight rather than in the left or right direction. Turning the wheel to stall, and I can’t make it up the hill? too far to the left or right will increase the possibility If this happens, there are some things you should of a rollover.
  • Page 209 Suppose, after stalling, try to back down the hill and decide I just can’t do it. What should I do? Set the parking brake, put your transmission in Shifting the transfer case to NEUTRAL PARK (P) (or the manual transmission in cause your vehicle to roll even if the transmission FIRST (1)) and turn off the engine.
  • Page 210 Driving Downhill When off-roading takes downhill, you’ll want to consider a number of things: Heavy braking when going down a hill can cause How steep is the downhill? Will I be able to maintain your brakes to overheat and fade. This could cause vehicle control? loss of control and a serious accident.
  • Page 211 Am I likely to stall when going downhill? over end. But when you drive across an incline, the much more narrow track width (the distance between It's much more likely to happen going uphill. But if the left and right wheels) may not prevent the vehicle it happens going downhill, here's what to do.
  • Page 212 Stalling on an Incline If your vehicle stalls when you’re crossing an incline, be sure you (and your passengers) get out on the uphill side, even if the door there is harder to open. If you get Driving across an incline that’s too steep will out on the downhill side and the vehicle starts to roll make your vehicle roll over.
  • Page 213 want to reduce the air pressure in your tires slightly when driving on sand. This will improve traction. CAUTION: Hard packed snow and ice offer the worst tire traction. On these surfaces, it’s very easy to lose control. On wet Getting out on the downhill (low) side of a vehicle ice, for example, the traction is so poor that will...
  • Page 214 _ ~ _ Driving in Water Light rain causes no special off-road driving problems. But heavy rain can mean flash flooding, and flood waters demand extreme caution. Driving through rushing water can be dangerous. Deep water can sweep your vehicle downstream Find out how deep the water is before you drive through and you and your passengers could drown.
  • Page 215 Night driving is more dangerous than driving. One steering, suspension, wheels, tires ana exhaust system for damage. Also, check the fuel lines and cooling reason is that some drivers are likely to be impaired alcohol or drugs, with night vision problems, or by fatigue. system for any leakage.
  • Page 216 Remember that your headlamps light up far less of a What you do in the daytime can also affect your night roadway when you are in a turn or curve. Keep your vision. For example, if you spend the day in bright eyes moving;...
  • Page 217 Rain and wet roads can mean driving trouble. On a wet road, you can’t stop, accelerate or turn as well because your tire-to-road traction isn’t as good as on dry roads. And, if your tires don’t have much tread left, you’ll get even less traction.
  • Page 218 Hydroplaning usually happens at higher speeds, There just isn’t a hard and fast rule about hydroplaning. The best advice is to slow down when it is raining. Driving Through Deep Standing Water Wet brakes can cause accidents. They won’t work well in quick stop and may cause pulling to one side.
  • Page 219 Know the best way to get to where you are going. Get City Driving a city map and plan your trip into an unknown part the city just as you would for a cross-country trip. Try to use the freeways that rim and crisscross most large cities.
  • Page 220 Freeway Driving At the entrance, there is usually a ramp that leads to the freeway. If you have a clear view of the freeway as you drive along the entrance ramp, you should begin to check traffic. Try to determine where you expect to blend with the flow.
  • Page 221 The exit speed is usually posted. Fuel, Engine Oil, Other Fluids: Have you checked all levels? Reduce your speed according to your speedometer, not Lamps: Are they all working? Are the lenses clean? to your sense of motion. After driving for any distance at higher speeds, you may tend to think you are going Tires: They are vitally important to a safe, slower than you actually are.
  • Page 222 Hill and Mountain Roads What can you do about highway hypnosis? First, be aware that it happen. Then here are some tips: Make sure your vehicle is well ventilated, with a comfortably cool interior. Keep your eyes moving. Scan the road ahead and to the sides.
  • Page 223 Keep your vehicle in good shape. Check all fluid levels and also the brakes, tires, cooling system and transmission. These parts can work hard on mountain roads. Coasung aownhill in NEUTRAL (N) or with the Know how to go down hills. The most important ignition off is dangerous.
  • Page 224 Winter Driving Here are some tips for winter driving: Have your vehicle in good shape for winter. You may want to put winter emergency supplies in your vehicle. Include an ice scraper, a small brush or broom, a supply of windshield washer fluid, a rag, some winter outer clothing, a small shovel, a flashlight, a red cloth and reflective warning triangles.
  • Page 225 Driving on Snow or Ice What’s the worst time for this? “Wet ice.” Very cold snow or ice can be slick and hard to drive on. But wet Most of the time, those places where your tires meet the ice can be even more trouble because it may offer the road probably have good traction.
  • Page 226 If You’re Caught in a Blizzard Watch for slippery spots. The road might be fine until you hit a spot that’s covered with ice. On an otherwise clear road, ice patches may appear in shaded areas where the sun can’t reach: around clumps of trees, behind buildings or under bridges.
  • Page 227 If you are stopped by heavy snow, you could be in a stay serious situation. You should probably with your vehicle unless you know for sure that you are near help and you can hike through the snow. Here are some things to do to summon help and keep yourself and your passengers safe: Turn...
  • Page 228 Run your engine only as long as you must. This saves fuel. When you run the engine, make it go a little faster than just idle. That is, push the accelerator slightly. This uses less fuel for the heat that you get and it keeps the Snow can trap exhaust gases under your vehicle.
  • Page 229 Recreational Vehicle Towing Two-Wheel-Drive Vehicles There may be times when you want to tow your vehicle Two-wheel-drive vehicles should not be towed with behind another vehicle for use at your destination. Be all four wheels on the ground. Two-wheel drive sure to use the proper towing equipment designed for transmissions have no provisions for internal lubrication recreational vehicle towing.
  • Page 230 Four-Wheel-Drive Vehicles Use the following procedure correctly tow your vehicle on all four wheels: (Manual Transfer Case Only) Firmly set the parking brake. ‘ A Place the transmission in PARK or a manual transmission in FIRST (1). Securely attach the vehicle being towed to the Shifting the transfer case into NEUTRAL (N) can tow vehicle.
  • Page 231 CertificatiodTire label also tells you the maximum Loading Your Vehicle weights for the front and rear axles, called Gross Axle Weight Rating (GAWR). To find out the actual loads on your front and rear axles, you need to go to a weigh station and weigh your vehicle.
  • Page 232 (Continued) NOTICE: NOTICE: If more cargo or passengers need to be Some vehicles may be equipped with RPO carried, appropriate counter ballast must (snow plow prep package). With this option, the be installed rear of the rear axle and payload your vehicle can carry is reduced when a properly secured.
  • Page 233 NOTICE: When you carry something inside the Your warranty does not cover parts or vehicle, secure it whenever you can. components that fail because of overloading. Don’t leave a seat folded down unless you need to. If you put things inside your vehicle -- like suitcases, tools, packages, or anything else -- they go as fast as the There’s also important loading information for off-road vehicle goes.
  • Page 234 Cargo Here is an example of proper truck and camper match: Weight Rating (CWR) the maximum weight of the load your vehicle can carry. It doesn’t include the weight of the people inside. But, you can figure about 150 lbs. (68 kg) for each seat. The total cargo load must not be more than your vehicle’s CWR.
  • Page 235 If your slide-in camper and its load weighs less than the When you install and load your slide-in camper, check CWR, the center of gravity zone for your vehicle may the manufacturer’s instructions. be larger. If you want more information on curb weights, cargo Your dealer can help you make a good vehicle-camper weights, Cargo Weight Rating and the correct center of match.
  • Page 236 Camper Wiring Harness Brown: Rear Lamps (If Equipped) Yellow: Left Stoplamp and Turn Signal Dark Green: Right Stoplamp and Turn Signal White (Heavy Gage): Ground Light Green: Back-up Lamps When the harness is not being used, store it in its original place.
  • Page 237 Towing a Trailer NOTICE: Pulling a trailer improperly can damage your vehicle and result in costly repairs not covered by your warranty. To pull a trailer correctly, follow If you don’t use the correct equipment and drive the advice in this part, and see your dealer for properly, you can lose control when you pull a important information about towing a trailer trailer.
  • Page 238 If You Do Decide To Pull A Trailer If you have a n automatic transmission, you can tow (a). in OVERDRIVE You may want to shift the If you do, here are some important points: transmission to THIRD or, if necessary, a lower There are many different laws, including speed limit gear selection if the transmission shifts too often restrictions, having to do with trailering.
  • Page 239 Use one of the following charts to determine how much C-1500 (2WD) your vehicle can weigh, based upon your vehicle model Max. Trailer Wt. Engine (Trans.) Axle Ratio and options. 4.3L (Auto.) 3.08 4,000 lbs. (1 Maximum trailer weight is calculated assuming the driver and one passenger are in the tow vehicle and it 5,000 lbs.
  • Page 240 C-2500 (2WD) K-1500 (4WD) Max. Trailer Wt. Engine (Trans.) Axle Ratio Max. Trailer Wt. Axle Ratio 5,500 lbs. (2 497 kg) 5.0L (Auto.) 3.42 3.73 5,000 lbs. (2 270 kg) 4.3L (Auto.) Engine (Trans.) 3.73 6,500 lbs. (2 951 kg) 2,500 lbs.
  • Page 241 K-2500 (4WD) K-3500 (4WD) Engine (Trans.) Axle Ratio Max. Trailer Wt. Engine (Trans.) Axle Ratio Max. Trailer Wt. 5.7L 3.73 6,000 lbs. (2 724 kg) 7,000 lbs. (3 178 kg) 4.10 5.7L 4.10 7,500 lbs. (3 405 kg) 6.5L Diesel 4.10 7,500 lbs.
  • Page 242 K-3500 Crew Cab (4WD) You can ask your dealer for our trailering information or advice, or you can write us at the address listed in your Axle Warranty and Owner Assistance Information Booklet. Ratio Max. Trailer Wt. Engine (Trans.) In Canada, write to: 4.10 6,500 Ibs.
  • Page 243 Total Weight on Your Vehicle’s Tires Be sure your vehicle’s tires are inflated to the upper limit for cold tires. You’ll find these numbers on the Certification label at the rear edge of the driver’s door see ”Tire Loading” in the Index. Then be sure you don’t go over the GVW limit for your vehicle, including the weight of the trailer tongue.
  • Page 244 Safety Chains The trailer’s brake system will less than 0.02 cubic inch (0.3 cc) of fluid from your vehicle’s You should always attach chains between your vehicle master cylinder. Otherwise, both braking systems and your trailer. Cross the safety chains under the tongue won’t work well.
  • Page 245 During your trip, check occasionally be sure that the Making Turns load is secure, and that the lamps and any trailer brakes are still working. NOTICE: Following Distance Stay at least twice as far behind the vehicle ahead as you Making very sharp turns while trailering could would when driving your vehicle without a trailer.
  • Page 246 with the automatic transmission in PARK (or the Driving On Grades manual transmission out of gear and the parking brake Reduce speed and shift to a lower gear before you start off. applied) for a few minutes before turning the engine down a long or steep downgrade.
  • Page 247 5. If you have a four-wheel-drive vehicle, When You Are Ready to Leave After be sure the transfer case is in a drive gear and not Parking on a Hill in NEUTRAL (N). 1. Apply your regular brakes and hold the pedal down Release the regular brakes.
  • Page 248 This harness has a 30 amp battery feed wire and no Trailer Wiring Harness connector, and should be wired by a qualified electrical technician. After choosing an aftermarket mating connector pair, have the technician attach one connector to the eight-wire trailer harness and the other connector to the wiring harness on the trailer.
  • Page 249 Power Winches Power Take-Off (PTO) (Manual Transmission) If you wish to use a power winch on your vehicle, only use it when your vehicle is stationary or anchored. NOTICE: NOTICE: If you have a PTO that will exceed 35 hp installed on your vehicle, it could damage the transfer case Using a power winch with the transmission in or transmission.
  • Page 250 To engage a PTO: To engage a PTO while the vehicle is moving: 1. Hold the clutch pedal down. 1 . Hold the clutch pedal down. 2. Shift the transmission into NEUTRAL (N). 2. Set the parking brake. 3. Engage the PTO. 3.
  • Page 251 Step-Bumper Pad Using a Transfer Case Mounted Power Take-Off (Automatic Transmission) If your vehicle has rear step bumper, may be equipped with rear step pad at the center of Set the parking brake. the bumper. Turn the ignition off. If you will be using the ( N ) .
  • Page 252 NOTES 4-64...
  • Page 253 ;tion 5 Problems on the Road Here you’ll find what to do about some problems that can occur on the road. Hazard Warning Flashers 5- 15 Cooling System -- Gasoline Engines Other Warning Devices 5-23 Engine Fan Noise Jump Starting 5-23 If a Tire Goes Flat Changing a Flat Tire...
  • Page 254 Hazard Warning Flashers down make y o u the way front and rear turn signal lamps flash on and off. " .............
  • Page 255 Other Warning Devices NOTICE: If you carry reflective triangles, you can use them to warn others. Set one up at the side of the road about Ignoring these steps could result in costly damage 300 feet (100 m) behind your vehicle. to your vehicle that wouldn’t be covered by your Jump Starting vehicle warranty.
  • Page 256 2. Get the vehicles close enough so the jumper cables NOTICE: can reach, but be sure the vehicles aren’t touching each other. If they are, it could cause a ground connection you don’t want. You wouldn’t be able If you leave your radio on, it could be badly to start your vehicle, and the bad grounding could damaged.
  • Page 257 5. Check that the jumper cables don’t have loose or missing insulation. If they do, you could get a shock. The vehicles could be damaged too. Before you connect the cables, here are some Using a match near a battery can cause battery basic things you should know.
  • Page 258 7. Don’t let the other end touch metal. Connect it to the positive terminal of the good battery. 6. Connect the red positive cable to the positive terminal of the vehicle with the dead battery.
  • Page 259 8. Now connect the black negative cable the good battery’s negative cable. Don’t let the other end touch anything until the next step. The other end of the negative cable doesn’t go 9. Attach the cable at least 18 inches (45 cm) away to the dead battery.
  • Page 260 Towing Your Vehicle 11. Try to start the vehicle with the dead battery. If it won’t start after a few tries, it probably Try to have your GM dealer or a professional towing needs service. service tow your vehicle. See “Roadside Assistance’’ in 12.
  • Page 261 CAUTION: CAUTION: To help avoid injury to you or others: A vehicle can fall from a car carrier if it isn’t adequately secured. This can cause a collision, Never let passengers ride in a vehicle that is serious personal injury and vehicle damage. The being towed.
  • Page 262 Front Towing 3. Clamp the steering wheel in a straight-ahead position with a clamping device designed for towing service. (Do not use the vehicle’s steering column lock for this.) 4. Put an automatic or a manual transmission in NEUTRAL (N). 5.
  • Page 263 (N). 5. Put the transfer case in NEUTRAL (N). See 4. Put the transmission in NEUTRAL “Four-wheel Drive” in the Index for the proper 5 . Put the transfer case in 2 High (2HI). procedure to select NEUTRAL (N). 6. When the vehicle is hooked up, release the 6.
  • Page 264 Rear Towing Engage the parking brake. Clamp the steering wheel in a straight-ahedd position with a clamping device designed for towing service. (Do not use the vehicle’s steering column lock for this.) Put an automatic transmission in PARK (P), or a manual transmission in FIRST (1).
  • Page 265 5. Put the transfer case in NEUTRAL (N). See NOTICE: “Four-Wheel Drive’’ in the Index for the proper procedure to select NEUTRAL (N). If your vehicle is equipped with four-wheel drive 6. When the vehicle is hooked up. release the parking brake.
  • Page 266 If Steam Is Coming From Your Engine If you keep driving when your engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop your engine if it overheats, and get out of the vehicle until the engine is cool.
  • Page 267 If you get the overheat warning with no sign of steam, Cooling System Gasoline Engines try this for a minute or so: When you decide it’s safe to lift the hood, here’s what 1. If you have an air conditioner, turn it off. you’ll see: 2.
  • Page 268 The codant level should be at or above the COLD mark. If it isn’t, you may have leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. I f your vehicle has air conditioning, the auxiliary electric engine cooling fan under the hood can start up even when the engine is not running and...
  • Page 269 If there seems to be no leak, start the engine again. See if CAUTION: (Continued) the engine cooling fan speed increases when idle speed is doubled by pushing the accelerator pedal down. If your With plain water or the wrong mix, engine doesn't, your vehicle needs service.
  • Page 270 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. Don’t spill coolant on a hot engine. When the coolant in the coolant recovery tank is at or above the COLD mark, start your vehicle.
  • Page 271 CAUTION: Steam and scalding liquids from system can blow out and burn you badly. They are under pressure, and if you turn the radiator pressure cap even a little they can come out at high speed. Never turn the cap when the cooling system, including the radiator pressure cap, is hot.
  • Page 272 How to Add Coolant the Radiator 2. Then keep turning the pressure cap, but now push down as you turn it. Remove the pressure cap. 1. You can remove the radiator pressure cap when the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot.
  • Page 273 3. Fill the radiator with the proper DEX-COOL@ 4. Then fill the coolant recovery tank to the COLD mark. coolant mixture, up to the base of the filler neck. 5. Put the cap back on the coolant recovery tank, but (See “Engine Coolant”...
  • Page 274 6. Start the engine and let run until you can feel the 8. Then replace the pressure cap. At any time during upper radiator hose getting hot. Watch out for the this procedure if coolant begins to flow out of the engine cooling fan(s).
  • Page 275 Engine Fan Noise If a Tire Goes Flat Your vehicle has a clutched engine cooling fan. When It‘s unusual for a tire to “blow out’’ while you’re driving, the clutch is engaged, the fan spins faster to provide especially if you maintain your tires properly. If air goes more air to cool the engine.
  • Page 276 Changing a Flat Tire If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place. Turn your hazard To be even more certain the vehicle won’t move, warning flashers. you can put blocks at the front and rear of the tire farthest away from the one being changed.
  • Page 277 Tire. Removing the SDare and Tools Extended Cab Models The equipment you’ll need is behind the passenger’s 2 and 4-DOOr Models ‘seat. Turn the wing nut to the left and remove the jack cover, if there is one. Remove the jacking equipment. If you have a chassis cab, refer to the information from the body supplierhnstaller for the location of your spare tire.
  • Page 278 Follow these instructions to lower the spare tire: One side of the ratchet has an UP marking. The other side has a DOWN marking. Assemble the ratchet to the hook near the end of the jack handle (as illustrated) with the DOWN marking facing you. Insert the other end through the hole in the rear bumper and into the hoist shaft.
  • Page 279 Attach thejack handle (and jack handle extension, if The tools you’ll be using include the jack (A), the jack handle extension (B), the jack handle (C), the wheel needed) to the jack. (E). wrench (D) and the ratchet If the flat tire is on the rear of the vehicle, you’ll need the jack handle extension also.
  • Page 280 If your vehicle has wheel nut caps, use the wheel wrench and ratchet to remove them. Turn the wheel wrench to the left, with DOWN facing you, to remove the wheel nut caps. Then take off the hub cap. If the wheel also has a trim ring, use the wheel wrench With the UP marking on the ratchet facing you, rotate the to pry along the edge and remove it.
  • Page 281 Removing the Flat Tire and Installing the 2. Position the jack under the vehicle. If the flat tire on the front of the vehicle, position the jack on the Spare Tire frame behind the flat tire. If the flat tire is on the rear, position the jack on the rear axle between the 1.
  • Page 282 4. Remove all the wheel nuts and take off the flat tire. Front Position Rear Position 5 . Remove any rust or dirt --__. from the wheel bolts, 3. With UP on the ratchet fixing you, raise the vehicle mounting surfxes and by rotating the ratchet and wheel wrench to the right.
  • Page 283 6. Replace the wheel nuts with the rounded end of the nuts toward the wheel. Tighten each Rust or dirt on the wheel, or on the parts to wheel nut by hand which it is fastened, can make the wheel nuts using the wheel wrench become loose after a time.
  • Page 284 nuts Tighten the firmly in a crisscross sequence shown by rotating the wheel wrench the right. Front Position Rear Position 7. Lower vehicle by rotating the ratchet and wheel Incorrect wheel nuts or improperly tightened wrench to the left. Lower the jack completely. wheel nuts can cause the wheel to become loose off.
  • Page 285 Storing Flat or Spare Tire and Tools NOTICE: CAUTION: Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel Storing a jack, a tire or other equipment in the nuts in the proper sequence and to the proper passenger compartment of the vehicle could torque specification.
  • Page 286 For an underbody spare tire carrier, store the tire under Raise Lower the rear of the vehicle in the spare tire carrier. To store the tire: Put the tire on the ground at the rear of the vehicle with the valve stem pointed down and to the rear. Tilt the retainer downward and through the wheel opening.
  • Page 287 2 and 4-DOOr Models Extended Cab Models A. Nut E. Jack and Tool A. Nut F. Ratchet Storage Box B. Jack B. Jack and Tool Cover G. Wheel Wrench E Ratchet C. Jack Handle Extension C. Jack Handle Extension H. Jack G.
  • Page 288 If You’re Stuck: In Sand, Mud, Ice or Snow What you don’t want to do when your vehicle is stuck is to spin your wheels too fast. The method known as “rocking” can help you get out when you’re stuck, but you must use caution.
  • Page 289 Using the Recovery Hooks NOTICE: Spinning your wheels can destroy parts of your vehicle as well as the tires. If you spin the wheels too fast while shifting your transmission back and forth, you can destroy your transmission. For information about using tire chains on your vehicle, see “Tire Chains”...
  • Page 290 The recovery hooks, when used, are under a lot of force. Always pull the vehicle straight out. Never hooks pull on the hooks at sideways angle. The could break and you others could be injured from the chain or cable snapping back. NOTICE: Never use the recovery hooks to tow the vehicle.
  • Page 291 Section 6 Service and Appearance Care Here you will find information about the care of your vehicle. This section begins with service and fuel information, and then it shows how to check important fluid and lubricant levels. There is also technical information about your vehicle, and a part devoted its appearance care.
  • Page 292 Doing Your Own Service Work Service If you want to do some of your own service work, you’ll Your dealer knows your vehicle best and wants you to use want the proper GM Service Manual. It tells you be happy with it. We hope you’ll go to your dealer for much more about how to service your vehicle than all your service needs.
  • Page 293 Adding Equipment to the Outside of CAUTION: Your Vehicle Things you might add to the outside of your vehicle can You can be injured and your vehicle could be affect the airflow around it. This may cause wind noise and affect windshield washer performance. Check with damaged if you try to do service work on a your dealer before adding equipment to the outside of vehicle without knowing enough about it.
  • Page 294 Be sure the posted octane is at least 87. If the octane is lamp on your instrument panel may turn on and/or your less than 87, you may get a heavy knocking noise when vehicle may fail a smog-check test. If this occurs, return you drive.
  • Page 295 To provide cleaner air, all gasolines in the United States Fuels in Foreign COUI are now required to contain additives that will help (Gasoline Engines) prevent deposits from forming in your engine and fuel system, allowing your emission control system to I f you plan on driving in another country outside the function properly.
  • Page 296 Filling Your Tank (Gasoline Engine) On a chassis-cab model, refuel the front tank first, or in instances when only a partial fuel fill is desired. An If your vehicle has a diesel engine, see “Filling Your automatic transfer mechanism will maintain Tank (Diesel Engine)”...
  • Page 297 To remove the cap, turn it slowly to the left (counterclockwise). If you get gasoline on yourself and then something ignites it, you could be badly burnea. Gasoline can spray out on you if you open the fuel filler cap too quickly. This spray can happen if your tank is nearly full, and is more likely in hot weather.
  • Page 298 Be careful not to spill gasoline. Clean gasoline from Filling Portable Fuel Container painted surfaces as soon as possible. See “Cleaning the Outside of Your Vehicle” in the Index. When you put the cap back on, t u r n it to the right (clockwise) until you hear a clicking sound.
  • Page 299 Checking Things Under the Hood CAUTION: CAUTION: Things that burn can get on hot engine parts and start a fire. These include liquids like gasoline or If your vehicle has air conditioning, the auxiliary diesel fuel, oil, coolant, brake fluid, windshield engine fan under the hood can start up and washer and other fluids, and plastic or rubber.
  • Page 300 Hood Release To open the hood, first pull the handle inside the vehicle. Then go to the front of the vehicle and pull up on the secondary hood release, located just to the passenger’s side of the center of the grill. Lift the hood.
  • Page 301 “VORTEC” 4300,5000,5700 Engine, “VORTEC” 5700 engine shown, locations for other engines similar. When you lift up the hood you’ll see: A. Battery G. Automatic Transmission L. Clutch Fluid Reservoir B. Air Cleaner Dipstick (If Equipped) (If Equipped) H. Fan M. Windshield Washer Fluid C.
  • Page 302 “VORTEC” 7400 Engine G. Automatic Transmission L. Clutch Fluid Reservoir A. Battery B. Coolant Recovery Tank Dipstick (If Equipped) (If Equipped) M. Windshield Washer C. Air Cleaner H. Engine Oil Fill I. Fan Fluid Reservoir D. Radiator Cap J. Power Steering Fluid Reservoir N.
  • Page 303 2. The use of the vehicle after such device or element Noise Control System of design has been removed or rendered inoperative The following information relates to compliance with by any person. Federal noise emission standards for vehicles with a Among those acts presumed to constitute tampering are Gross Vehicle Weight Rating (GVWR) of more than the acts listed below.
  • Page 304 has a Engine Oil (Gasoline Engine) The engine oil dipstick yellow ring handle and is located on the passenger’s side of the engine. If your vehicle has a diesel engine, see “Engine Oil Turn off the engine and give the oil a few minutes to (Diesel Engine)”...
  • Page 305 The engine oil fill cap for When to Add Engine Oil the “VORTEC” 4300,5000 If the oil is at or below the ADD mark, then you’ll need and 5700 engines are to add at least one quart of oil. But you must use the located on the driver’s side right kind.
  • Page 306 What Kind of Engine Oil to Use RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS Oils recommended for your vehicle can be identified by FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST looking for the “Starburst” symbol. This symbol SAL VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE. indicates that the oil has been certified by the American Petroleum Institute (API).
  • Page 307 As shown in the chart, SAE 5W-30 is best for your When to Change Engine Oil vehicle. However, you can use SAE 1OW-30 if it’s going If any one of these is true for you, use the short tripkity 0°F to be 18 “C) or above.
  • Page 308 What to Do with Used Oil Air Cleaner (Gasoline Engines) Did you know that used engine oil contains certain e.lements that may be unhealthy for your skin and could even cause cancer? Don’t let used oil stay on your skin for very long.
  • Page 309 The air cleaner assembly has an indicator that lets you know when the air filter is dirty and needs to be serviced. The indicator is located in the air intake tube between the air cleaner and the engine. See “Owner Checks and Services’’ in the Index to determine when to check the indicator.
  • Page 310 CAUTION: Operating the engine with the air cleaner off can cause you or others to be burned. The air cleaner not only cleans the air, it stops flame if the engine backfires. If it isn’t there, and the engine backfires, you could be burned. Don’t drive with it off, and be careful working on the engine with the air cleaner off.
  • Page 311 If you do yourself, be sure to follow all the instructions Automatic Transmission Fluid here, or you could get a false reading on the dipstick. If your vehicle has diesel engine, see “Automatic Transmission Fluid” in the Diesel Supplement. NOTICE: When to Check and Change A good time to check your automatic transmission fluid Too much or too little fluid can damage your...
  • Page 312 Checking Transmission Fluid Hot three seconds in each range. Then, position the shift lever in PARK (P). Get the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 50°F Let the engine run at idle for three minutes or more. (10°C).
  • Page 313 Add fluid only after checking the transmission fluid while it is hot. (A cold check is used only as a reference.) If the fluid level is low, add only enough of the proper fluid to bring the level up to the HOT area for a hot check.
  • Page 314 Check the fluid level only when your engine is off, the Manual Transmission Fluid vehicle is parked on a level place and the transmission is When to Check cool enough for you to rest your fingers on the transmission case. good time to have it checked is when the engine oil is Then, follow these steps: changed.
  • Page 315 How to Add Fluid When to Check and What to Use Here’s how to add fluid. Refer the Maintenance Refer to the Maintenance Schedule to determine what kind of fluid to use. See Schedule, Owner Checks ”Recommended Fluids and Lubricants” in the Index. and Services, determine how often you should check...
  • Page 316 Rear Axle What to Use Refer to the Maintenance Schedule to determine what When to Check and Change Lubricant kind of lubricant to use. See “Recommended Fluids and Refer to the Maintenance Schedule to determine how Lubricants” in the Index. often to check the lubricant and when to change it.
  • Page 317 Transfer Case If the level is below the bottom of the filler plug hole, you’ll need to add some lubricant. Add enough lubricant When to Check Lubricant to raise the level to the bottom of the filler plug hole. Refer the Maintenance Schedule to determine how What to Use often to check the lubricant.
  • Page 318 How to Check Lubricant What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See “Recommended Fluids and Lubricants” in the Index. Engine Coolant The cooling s stem in your vehicle is filled with DEX-COOL engine coolant.
  • Page 319 What to Use NOTICE: Use a mixture of one-half clean water (preferably distilled) and one-half DEX-COOL@ coolant which When adding coolant, it is important that you use won’t damage aluminum parts. If you use this mixture, only DEX-COOL@ (silicate-free) coolant. you don’t need to add anything else.
  • Page 320 Checking Coolant NOTICE: If your vehicle has a diesel engine, see “Checking Coolant” in the Diesel Engine Supplement. If you use an improper coolant mixture, your engine could overheat and be badly damaged. The repair cost wouldn’t be covered by your warranty.
  • Page 321 Adding Coolant CAUTION: If you need more coolant, add the proper DEX-COOL@ coolant mixture at the coolant recovery tank. You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, CAUTION: and it will burn if the engine parts are hot enough.
  • Page 322 Radiator Pressure Cap NOTICE: (Gasoline Engine) Your radiator cap is a 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. Be sure the arrows on the cap line up with the overflow tube on the radiator filler neck.
  • Page 323 Power Steering Fluid How To Check Power Steering Fluid When the engine compartment is cool, wipe the cap and the top of the reservoir clean, then unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it.
  • Page 324 Adding Washer Fluid NOTICE: When using concentrated washer fluid, follow the manufacturer’s instructions for adding water. Don’t mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water doesn’t clean as well as washer fluid.
  • Page 325 isn’t a good idea to “top off’ your brake fluid. Brakes Adding brake fluid won’t correct a leak. If you add fluid Brake Fluid when your linings are worn, then you’ll have too much fluid when you get new brake linings. You should add Your brake master cylinder (or remove) brake fluid, as necessary, only when work is reservoir is here.
  • Page 326 Checking Brake Fluid fluid such as Delco Supreme l l w Part No. 12377967). Use new brake fluid from a sealed container only. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This will help keep dirt from entering the reservoir.
  • Page 327 Disc brake pads (except C 3500 HD models) have NOTICE: built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound may come and go or be Using the wrong fluid can badly damage heard all the time your vehicle is moving (except when brake system parts.
  • Page 328 Some driving conditions or climates may cause a brake Brake Adjustment squeal when the brakes are first applied or lightly Every time you make a brake stop, your disc brakes applied. This does not mean something is wrong with adjust for wear. your brakes.
  • Page 329 Battery Contact your dealer to learn how prepare your vehicle for longer storage periods. Every new vehicle has an ACDelco Freedom@ battery. Also, for your audio system. see “Theft-Deterrent You never have to add water to one of these. When it’s Feature”...
  • Page 330 Headlamps 3. Unplug and remove the headlamp. Sealed Beam Lamps Remove the four screws from the headlamp retainer. 4. Plug in the new headlamp and put in place. 5 . Install the retainer to the headlamp and tighten the screws. 2 .
  • Page 331 Composite Headlamps 4. Turn the bulb to the left and remove it. 5. Put the new bulb into the lens assembly and turn it to the right until it is tight. 6. Plug in the electrical connector. Remove the two hex head pins at the location shown. 7.
  • Page 332 Front Turn Signal Lamps 4. Pull the socket out of the lamp assembly. 1. Remove the two screws at the inside edge of the parkinghurn signal lamp assembly. 5. Push in gently on the bulb, turn to the left and remove from the socket.
  • Page 333 Front Turn Signal Lamps (Composite Headlamps) 1. Remove the four screws and take out the parking/turn signal lamp assembly. 4. Push in gently on the bulb, turn it to the left and remove it from the socket. 5. Put the new bulb into the socket, gently press in on 2.
  • Page 334 Front Sidemarker Lamps (Composite Headlamps) 1. Remove the four screws and pull out the parkinghrn signal lamp assembly. 4. Put a new bulb into the socket and push it in until it is tight. 5. Put the socket back into the sidemarker assembly and turn it to the right to tighten it.
  • Page 335 2. Turn the bulb socket to Fender Marker Lamps the left and remove it (Dual Rear Wheel Pickup Models) from the lens assembly. 1. Remove the screws and take the fender marker assembly out of the fender. 3. Pull the bulb straight out of the socket. 4.
  • Page 336 3. Put a new bulb into the Center High-Mounted Stoplamp (CHMSL) socket and push it in until it is tight..* ..* ..........L % r n w a ? r : : ;...
  • Page 337 Pickup Box Identification Lamps Roof Marker Lamps (Dual Rear Wheel Pickup Models) 1. Remove the screws and lift off the lens. 2. Pull the bulb straight out of the socket. 3. Put a new bulb into the socket and push it in until it is tight.
  • Page 338 Taillamps (Pickup Models) 1. Open the tailgate. 2. Remove the two rear lamp assembly screws near the tailgate latch and pull out the lamp assembly. 4. Unplug the lamp at the connector. 3. Remove the screws 5. Plug in new lamp and snap into the housing.
  • Page 339 4. Pull the old bulb straight Taillamps (Chassis Cab Models) out of the socket. 1. Using your hands, peel the rubber seal away from the lens. 2. Lift the lens off the lamp assembly. 5. Put in a new bulb and push it straight in until it is tight.
  • Page 340 4. Push in gently on the Windshield Wiper Blade bulb, turn it to the Replacement left and remove it from the socket. For proper type and length, see “‘Normal Maintenance Replacement Parts” in the Index. Put in a new bulb and, pushing in gently, turn it to the right until it is tight.
  • Page 341 Tires CAUTION: Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see Poorly maintained and improperly used tires your GM Warranty booklet for details. are dangerous.
  • Page 342 Inflation Tire Pressure NOTICE: The CertificationlTire label, which is on the rear edge of the driver’s door, or on the incomplete vehicle document Don’t let anyone tell you that underinflation or in the cab, shows the correct inflation pressures for your overinflation is all right.
  • Page 343 The purpose of regular rotation is to achieve more When to Check uniform wear for all tires on the vehicle. The first Check your tires once a month or more. Also, check the rotation is the most important. See “Scheduled tire pressure of the spare tire.
  • Page 344 ’ your vehicle has dual rear wheels and the load range and tread design for your front tires is the same as your If your vehicle has dual rear wheels and the load range rear tires, always use one of the correct rotation patterns or tread design for your front tires is different from your shown here when rotating your tires.
  • Page 345 When It’s Time for New Tires CAUTION: One way to tell when it’s time for new tires is to Rust or dirt on a wheel, or on the parts to which check the treadwear indicators, which will it is fastened, can make wheel nuts become loose appear when your tires have after a time.
  • Page 346 You need new tire if any of the following statements The outer tire a dual wheel setup generally wears Faster than the inner tire. Your tires will wear more are true: evenly and last longer if rotate the tires periodically. You can see the indicators at three or more places If you’re going to be doing a lot driving on...
  • Page 347 The tires installed on your vehicle when it was new had a Tire Performance Criteria Specification (TPC Spec) CAUTION: number on each tire’s sidewall. When you get new tires, get ones with that same TPC Spec number. That way your you use biasuply tires on vehicle, the your vehicle will continue to have tires that are designed...
  • Page 348 While the tires available on General Motors passenger Warning: The traction grade assigned to this tire is based on braking (straight ahead) traction tests and does not cars and light trucks may vary with respect to these include cornering (turning) traction. grades, they must also conform to Federal safety requirements and additional General Motors Tire Temperature...
  • Page 349 equipment parts. This way, you will be sure to have the Wheel Alignment and Tire Balance right wheel, wheel bolts and wheel nuts for your vehicle. The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance.
  • Page 350 Whenever a wheel, wheel bolt or wheel nut is replaced Tire Chains on a dual wheel setup, check the wheel nut torque after 100, 1,000 and 6,000 miles 160, 1 600 and 10 000 km) NOTICE: of driving. For proper torque, see “Wheel Nut Torque’’ in the Index.
  • Page 351 NevcJr use these to clean your vehicle: ntinued) NOTICE: Gasoline you have a tire Benzene If you don’t have dual wheels o r size other than P265/75R16 or LT265/75R16, use Naphtha tire chains only where legal and only when Carbon Tetrachloride must.
  • Page 352 Cleaning the Inside of Your Vehicle Using Multi-Purpose Interior Cleaner on Fabric Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl, leather, plastic and painted surfaces Vacuum and brush the area to remove any loose dirt. with a clean, damp cloth.
  • Page 353 Fabric Protection Special Fabric Cleaning Problems Stains caused by catsup, coffee (black), egg, fruit, fruit Your vehicle has upholstery and carpet that has been juice, milk, soft drinks, wine, vomit, urine and blood can treated with Scotchgard" Fabric Protector, a 3M be removed as follows: product.
  • Page 354 Cleaning Leather Cleaning Interior Plastic Components Use a soft cloth with lukewarm water and a mild soap or Use only a mild soap and water solution on a soft saddle soap and wipe dry with a soft cloth. Then, let the cloth or sponge.
  • Page 355 Grime from the windshield will stick to the wiper blades Cleaning Glass Surfaces and affect their performance. Clean the blade by wiping Glass should be cleaned often. GM Glass Cleaner (GM vigorously with a cloth soaked in full-strength Part No. 1050427) or a liquid household glass cleaner windshield washer solvent.
  • Page 356 Don’t wash your vehicle in the direct rays of the sun. Your vehicle may have “basecoat/clearcoat” paint Don’t use strong soaps chemical detergents. Use finish. The clearcoat gives more depth and gloss liquid hand, dish or car washing (mild detergent) soaps. colored basecoat.
  • Page 357 Protecting Exterior Bright Metal Parts Don’t take your vehicle through a n automatic car wash that has silicon carbide tire cleaning brushes. These Bright metal parts should be cleaned regularly to keep brushes can also damage the surface of these wheels, their luster.
  • Page 358 Finish Damage Chemical Paint Spotting Any stone chips, fractures or deep scratches in the finish Some weather and atmospheric conditions can create a should be repaired right away. Bare metal will corrode chemical fallout. Airborne pollutants fall upon and quickly and may develop into a major repair expense. attack painted surfaces on your vehicle.
  • Page 359 Appearance Care Materials Chart PART SIZE DESCRIPTION USAGE 994954 Polishing Cloth Wax Treated Exterior polishing cloth 1050172 (0.473 L) Tar and Road Oil Remover Removes tar, road oil and asphalt 1050173 (0.473 L) Chrome Cleaner and Polish Use on chrome, stainless steel, nickel, copper and brass 1050 174 16 (0.473 White Sidewall Tire Cleaner...
  • Page 360 -In N mber (VIN) Vehicle IdentiP the model designation, ’ * paint information and a list of all production options and special equipment. =I I1 11111111 1111 11111111t 111 111111 I I 1 1 1 1 1 1 1 1 1 1 1 1 111111111 II Be sure that this label is not removed from the vehicle.
  • Page 361 Headlamps Fuses and Circuit Breakers The headlamp wiring is protected by an internal circuit The wiring circuits in your vehicle are protected from breaker. An electrical overload will cause the lamps short circuits by a combination of fuses, circuit breakers to go on and off, or in some cases to remain off.
  • Page 362 Instrument Panel Fuse Block The fuse block access door is on the driver’s side edge of the instrument panel. Pull off the cover to access the fuse block. You can remove fuses a fuse extractor. The fuse with extractor is mounted to the fuse block access door. To remove fuses if you don’t have a fuse extractor, hold the end of the fuse between your thumb and index finger FuseKircuit...
  • Page 363 FuseKircuit FuseKircuit Usage Breaker Breaker Usage Courtesy Lamps, Cargo Lamp, Air Bag System Glove Box Lamp, Dome/Reading Wiper Motor, Washer Pump Lamps, Vanity Mirrors, A/C, Blower, Power Mirrors High Blower Relay Instrument Cluster, DRL Relay, Power Amp, Cigarette Lighter, Lamp Switch, Keyless Entry, Door Lock Relay, Low Coolant Module, Power Lumbar Seat...
  • Page 364 Underhood Fuse/Relay Center Fuse/Circuit Usage Breaker PRNDL, Automatic Transmission, Speedometer, Check Gages Warning Light Security/Steering Not Used Not Used Front Axle, 4WD Indicator Lamp, TP2 Relay (Gasoline Engine) Power Door Lock, Six-Way Power Seat, Keyless Entry Module Power Windows The underhood fusehelay center is located in the rear of the engine compartment near the brake fluid reservoir.
  • Page 365 Name Usage HORN Horn, Underhood Lamps Auxiliary Fan AUX FAN ECM- 1 Injectors, PCM/VCM STARTER Not Used HTD ST-FR [ - I Air Conditioning [ - I Not Used HTD MIR RELAY [ T ) ENG- 1 Ignition Switch, EGR, Canister Purge, EVRV Idle Coast Solenoid, Heated Fuel Heater...
  • Page 366 Replacen- Exterior Lamps Quantity Number Interior Lamps Quantity Number 21 1-2 Sealed Beam Headlamps H6054 Dome Lamps Composite Low-Beam 21 1-2 Reading Lamps Headlamps 9006 Door Courtesy Lamps Composite High-Beam Four-Wheel-Drive 9005 Headlamps Indicator** Front Marker Lamp Four-Wheel-Drive Shift Lever4: Front Parking and 2357NA Turn Lamp...
  • Page 367 Capacities and Specifications Please refer to ”Recommended Fluids and Lubricants” in the Index for more information. Engine VIN Code Spark Plug Gap Type “VORTEC” 4300 0.060 inches 1.52 mm) “VORTEC” 5000 0.060 inches ( I .52 mm) ”VORTEC“ 5700 0.060 inches (1.52 mm) “VORTEC“...
  • Page 368 Normal Maintenance Replacement Parts Replacement part numbers listed in this section are based on the latest information available at the time of printing, and are subject to change. If a part listed in this manual is not the same as the part used in your vehicle when it was built, or if you have any questions, please contact your GM truck dealer.
  • Page 369 Cooling System Capacity (Approximate) Fuel Tank Capacity (Approximate) After refill, the level must be rechecked. See “Cooling P P e Quantity System” in the Index. Short Bed 26 gallons (98 L) Engine Quantity Long Bed 34 gallons (128 “VORTEC” 4300 13 quarts (12.3 L) Standard Crew Cab 34 gallons (128 L)
  • Page 370 NOTES 6-SO...
  • Page 371 Section 7 Maintenance Sch dulp This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety, dependability and emission control performance. Introduction Short Trip/City Maintenance Schedule Part A: Scheduled Maintenance Services 7-28 Long Trip/Highway Maintenance Schedule Short Trip/City Definition 7-40 Part B: Owner Checks and Services...
  • Page 372 Introduction IMPORTANT- Your Vehicle and the Environment KEEP ENGINE AT THE PROPER Proper vehicle maintenance not only helps to keep your ,VEL AND CHANGE vehicle in good working condition, but also helps the RECOMMENDED environment. All recommended maintenance procedures are important. Improper vehicle maintenance can even affect the quality of the air we breathe.
  • Page 373 “Part C: Periodic Maintenance Inspections” explains important inspections that your dealer’s service department or another qualified service center should perform. “Part D: Recommended Fluids and Lubricants” lists Performing maintenance work on a vehicle can some recommended products to help keep your vehicle be dangerous.
  • Page 374 Part D. Part A: Scheduled Maintenance The proper fluids and lubricants to use are listed in Make sure whoever services your vehicle uses these. All Services pats should be replaced and all necessary repairs done before you or anyone else drives the vehicle. Using Your Maintenance Schedule These schedules are for vehicles that: We at General Motors want to help you keep your...
  • Page 375 Maintenance Schedule Short Trip/City Definition Gasoline Engines Short Trip/City Intervals Gasoline Engines Every 3,000 Miles (5 000 km): Engine Oil and Filter Follow the Short Trip/City Maintenance Schedule if any one of these conditions is true for your vehicle: Change (or 3 months, whichever occurs first). Chassis Lubrication (or 3 months, whichever occurs first).
  • Page 376 Maintenance Schedule Short Trip/City Intervals Gasoline Engines Every 100,000 Miles (166 000 km): Spark Plug Wire Follow this maintenance schedule only if none of the conditions from the Short Trip/City Maintenance Inspection. Spark Plug Replacement. Automatic Schedule is true. Do not use this schedule if the vehicle Transmission Service (normal conditions).
  • Page 377 Maintenance Schedule Long TriplHighway Intervals Gasoline Engines Long; TripMighway Intervals Gasoline Engines Every 7,500 Miles (12 500 km): Engine Oil and Filter Every 60,000 Miles (100 000 km): Engine Accessory Change (or every 12 months, whichever occurs first). Drive Belt Inspection. Fuel Tank, Cap and Lines Chassis Lubrication (or every 12 months, whichever Inspection.
  • Page 378 Short Trip/City Maintenance Schedule Gasoline Engines The services shown in this schedule up to 100,000 miles Lubricate the front suspension, kingpin bushings, ( I 66 000 km) should be performed after 100,000 miles steering linkage. transmission shift linkage, transfer case (166 000 km) at the same intervals.
  • Page 379 Short Trip/City Maintenance Schedule Gasoline Engines Drive axle service (see "Recommended Fluids and More frequent lubrication may be required for 4 : : : : heavy-duty or off-road use. Lubricants" in the Index for proper lubricant to use): 3500 HD Models with applications requiring Locking Differential -- Drain fluid and refill at first extreme overload/trailer towing conditions and engine oil change.
  • Page 380 Short TripKity Maintenance Schedule Gasoline Engines 3,000 Miles ( 5 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first). SERVICEDBY MILEAGE An Etnission C o m d Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 381 Short TripKity Maintenance Schedule Gasoline Engines Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed. Check constant **.) velocity joints and axle seals for leaking. (See footnote 12,000 Miles (20 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first).
  • Page 382 Short Trip/City Maintenance Schedule Gasoline Engines 000 km) (Continued) 15,000 Miles Check rear/front axle fluid level and add fluid as needed. Check constant **.) velocity joints and axle seals for leaking. (See footnote For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first).
  • Page 383 Short Trip/City Maintenance Schedule Gasoline Engines Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check rearlfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 24,000 Miles (40 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first).
  • Page 384 Short TripKity Maintenance Schedule Gasoline Engines 30,000 Miles (50 000 km) Change engine oil and filter (or every 3 months, whichever occurs first). SERVICED BY: MILEAGE An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid needed.
  • Page 385 Short TripKity Maintenance Schedule Gasoline Engines Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check redfront axle fluid level and add fluid as needed. Check constant **.) velocity joints and axle seals for leaking. (See footnote 36,000 Miles (60 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first).
  • Page 386 Short TripKity Maintenance Schedule Gasoline Engines 42,000 Miles (70 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 387 Short TripKity Maintenance Schedule Gasoline Engines 48,000 Miles (80 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first). ACTUAL SERVICEDBY MILEAGE An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 388 Short Trip/City Maintenance Schedule Gasoline Engines 51,000 Miles (85 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first). ACTUAL SERVICED B Y MILEAGE An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 389 Short Trip/City Maintenance Schedule Gasoline Engines Lubricate chassis components (or every 3 monms, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed. Check constant **.) velocity joints and axle seals for leaking. (See footnote 60,000 Miles (100 000 km) DATE Change engine oil and filter (or every 3 months, whichever occurs first).
  • Page 390 Short TripKity Maintenance Schedule Gasoline Engines 60,000 Miles (100 000 km) (Continued) Replace fuel filter. An Emission Control Service. (See footnote?.) Conduct Exhaust Gas Recirculation (EGR) system inspection as described in the service manual. An Emission Control Service. (See footnote?.) Conduct evaporative control system inspection.
  • Page 391 Short Trip/City Maintenance Schedule Gasoline Engines 66,000 Miles (110 000 km) Change engine and filter (or every 3 months, whichever occurs first). SERVICED BY: An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 392 Short Trip/City Maintenance Schedule Gasoline Engines 72,000 Miles (120 000 km) (Continued) Check readfront axle fluid level and add fluid as needed. Check constant **.) velocity joints and axle seals for leaking. (See footnote Rotate tires. See “Tire Inspection and Rotation” in the Index for proper rotation pattern and additional information.
  • Page 393 Short Trip/City Maintenance Schedule Gasoline Engines Lubricate chassis components (or every months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) Rotate tires. See “Tire Inspection and Rotation” in the Index for proper rotation pattern and additional information.
  • Page 394 Short TripKity Maintenance Schedu’? Gasoline Engines 84,000 Miles (140 000 km) (Continued) Check rear/front axle fluid level and add fluid as needed. Check constant *:*.) velocity joints and axle seals for leaking. (See footnote Rotate tires. See “Tire Inspection and Rotation” in the Index for proper rotation pattern and additional information.
  • Page 395 Short Trip/City Maintenance Schedule Gasoline Engines Replace fuel filter. An Emissior? Control Service. (See footnote?.) Rotate tires. See "Tire Inspection and Rotation?' in the Index for proper rotation pattern and additional information. (See footnote Vehicles With GVWR Above 8,500 Only: Inspect shields and underhood lbs.
  • Page 396 Short Trip/City Maintenance Schedule Gasoline Engines 96,000 Miles (160 000 km) (Continued) Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) Rotate tires. See “Tire Inspection and Rotation” in the Index for proper rotation pattern and additional information.
  • Page 397 Short TripKity Maintenance Schedule Gasoline Engines In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police or delivery service. Manual transmission fluid doesn’t require change. If you haven’t used your vehicle under severe service conditions listed previously and, therefore, haven‘t changed your automatic transmission fluid, change both the fluid and filter.
  • Page 398 Long TripMighway Maintenance Schedule Gasoline Engines The services shown in this schedule up to 100,000 miles Lubricate the front suspension, kingpin bushings, (166 000 km) should be performed after 100,000 miles steering linkage, transmission shift linkage, transfer case (166 000 km) at the same intervals. The services shown shift linkage, parking brake cable guides, rear driveline at 150,000 miles (240 000 km) should be performed at center splines, front axle propshaft spline and brake...
  • Page 399 Long Trip/Highway Maintenance Schedule Gasoline Engines 7,500 Miles (12 DATE Change engine and filter (or every 12 months, whichever occurs first). ACTUAL SERVICEDBY MILEAGE An Emission Control Service. Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote Check rear/front axle fluid level and add fluid as needed.
  • Page 400 Long Trip/Highway Maintenance Schedule Gasoline Engines 22,500 Miles (37 500 km) Change engine oil and filter (or every 12 months, whichever occurs first). MILEAGE An Emission Control Service. Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 401 Long Trip/Highway Maintenance Schedule Gasoline Engines Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is a Noise Emission Control Service. Applicable only to vehicles sold i n the United States. 37,500 Miles (62 500 km) DATE Change engine oil and filter (or every 12 months, whichever occurs first).
  • Page 402 Long TriplHighway Maintenance Schedule -asoline Engines 45,000 Miles (75 000 km) (Continued) Check readfront axle fluid level and add fluid needed. Check constant velocity joints and axle seals for leaking. (See footnote :c*.) Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness.
  • Page 403 Long Tripmighway Maintenance Schedule Gasoline Engines 52,500 Miles (87 500 km) Change engine oil and filter (or every 12 months, whichever occurs first). An Emissimz Control Service. MILEAGE Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 404 Lono Tripmighway Maintenance Schedule Gasoline Engines ,000 Miles (100 000 km) (Continued) Inspect engine accessory drive belt. An Emission Control Service. Replace fuel filter. An Em.issiorz Control Service. (See footnote?.) Inspect fuel tank, c.ap and lines for damage or leaks. inspect fuel cap gasket for any damage.
  • Page 405 Long Tripmighway Maintenance Schedule Gasoline Engines 67,500 Miles (112 500 km) Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. MI1,EAGE Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote Check readfront axle fluid level and add fluid as needed.
  • Page 406 Long Tripmighway Maintenance Schedule Gasoline Engines 82,500 Miles (I37 500 km) DATE Change engine oil and filter (or evl_-,r I2 months, whichever occurs first). SERVICEDBY ACTUAL MILEAGE An Emission Control Service. Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote Check rear/front axle fluid level and add fluid as needed.
  • Page 407 Long Tripmighway Maintenance Schedule G a s o l i n e E n g c I Vehicles With GVWR Above 8,500 Ibs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace required. This is a Noise Ernissiorz Co?ztrol Service. Applicurble orzly to vehicles sold in the United States.
  • Page 408 Long Tripmighway Maintenance Schedule Gasoline Engines 100,000 Miles (166 000 km) DATE Inspect spark plug wires. SERVICED B MILEAGE E~nission Control Service. Replace spark plugs. An Emission Control Service. Change automatic transmission fluid and filter if the vehicle’s GVWR is over 8600 lbs.
  • Page 409 Long Tripmighway Maintenance Schedule Gasoline Engines 150,000 Miles (240 000 km) DATE flush Drain, and refill cooling system (or every months since last service, whichever occurs first). See "Engine Coolant" the Index what to use. MILEAGE Inspect hoses. Clean radiator, condenser, pressure cap neck.
  • Page 410 Part B: Owner Checks and Services Engine Coolant Level Check Check the engine coolant level and add DEX-COOL@ Listed below are owner checks and services which coolant mixture if necessary. See “Engine Coolant” in should be performed at the intervals specified to help the Index for further details.
  • Page 411 Manual Transmission Check At Least Twice a Year Check the transmission fluid level; add if needed. See Restraint System Check "Manual Transmission" i n the Index. Check for leaks. Make sure the safety belt reminder light and a l l your A fluid loss may indicate a problem.
  • Page 412 Body Lubrication Service 3. On automatic transmission vehicles, try to start the engine in each gear. The starter should work only in Lubricate all fuel doors, body hood, body door hinges, PARK (P) or NEUTRAL (N). If the starter works body door hinge pins, hood latch assembly, pivots, any other position, your vehicle needs service.
  • Page 413 Parking Brake and Automatic Transmission Firmly apply the parking brake (see “Parking Brake” PARK (P) Mechanism Check in the Index if necessary). NOTE: Be ready to apply the regular brake immediately if the vehicle begins to move. With the engine off, turn the key to the RUN position, but don’t start the engine.
  • Page 414 Exhaust System Inspection Part C: Periodic Maintenance Inspections Inspect the complete exhaust system. Inspect the body near the exhaust system. Look for broken, damaged, Listed below are inspections and services which should missing or out-of-position parts well as open seams, be performed at least twice a year (for instance, each holes, loose connections or other conditions which could spring and fall).
  • Page 415 Drive Axle Service Brake System Inspection Check readfront axle fluid level and add needed. Inspect the complete system. Inspect brake lines and Check constant velocity joints and axle seals for leaking. hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors Transfer Case (Four-wheel Drive) for surface condition.
  • Page 416 Part D: Recommended Fluids FLUID/LUBRICANT USAGE and Lubricants Hydraulic Clutch Hydraulic Clutch Fluid (GM Part NOTE: Fluids and lubricants identified below by name, System No. 12345347 or equivalent part number or specification may be obtained from DOT-3 Brake Fluid). your dealer. Parking Brake Chassis Lubricant (GM Part No.
  • Page 417 USAGE FLUIDLUBRICANT USAGE FLUIDLUBRICANT SAE 75W- 140 Synthetic Gear Automatic DEXRON@-I11 Automatic Differential, C3 Transmission Transmission Fluid. (HD3500) Lubricant (GM Part Trucks With No. 12346 140) or equivalent. Key Lock Multi-Pur ose Lubricant, Dana Rear Axle Cylinders Superlube (GM Part No.
  • Page 418 FLUID/LUBRICANT USAGE FLUIDLUBRICANT USAGE Hood Latch Lubriplate' Lubricant Aerosol Tailgate Handle Multi-Pur ose Lubricant, Superlube (GM Part Assembly, (GM Part No. 12346293 or Pivot Points, No. 1234624 I or equivalent). Pivots, Spring equivalent) or lubricant meeting Hinges, Latch Anchor and requirements of NLGI Bolt and Linkage Release Pawl...
  • Page 419 Any additional information from ”Owner Checks and Part E: Maintenance Record Services’’ or “Periodic Maintenance” can be added on After the scheduled services are performed, record the the following record pages. Also, you should retain all date, odometer reading and who performed the service maintenance receipts.
  • Page 420 Maintenance Record ODOMETER READING DATE SERVICED BY MAINTENANCE PERFORMED 7-50...
  • Page 421 Section 8 Customer Assistance Information Here you will find out how to contact GMC if you need assistance. This section also tells you how to obtain service publications and how to report any safety defects. Customer Satisfaction Procedure 8- 10...
  • Page 422 CMC dealers have the facilities, trained technicians and Customer Satisfaction Procedure up-to-date information to promptly address any concerns you may have. However, if a concern has not been resolved to your complete satisfaction, take the following steps: STEP ONE -- Discuss your concern with a member of dealership management.
  • Page 423 In the Dominican Republic: 1-800-75 1-4 135 cannot be resolved by the dealership without further (English) or 1-800-75 136 (Spanish) help, contact the GMC Consumer Relations Manager In the Bahamas: 1-800-389-0009 by calling 1 -800-GMC-8782 (1 -800-462-8782, Customer Assistance prompt.)
  • Page 424 Customer Assistance Center. Any TTY We encourage you to call us so we can give your inquiry user can communicate with GMC by dialing: prompt attention. However, if you wish to write GMC, 1 -800-GMC-8583. (TTY users in Canada can address your inquiry to: dial 1-800-263-3830.)
  • Page 425 10 miles 14 km). E17zerpmy 7hvi1zg Senlice: Towing to the nearest GMC dealer for warranty related disablements will be covered. GMC’s Roadside Assistance provides stranded owners with over-the-phone roadside repairs, location of the nearest GMC dealer or the following special services:...
  • Page 426 Del~m? Trip Routing: Custom-made, computerized The Roadside Assistance services listed are available to retail and retail lease customers operating 1998 GMC maps using the most direct or scenic route are provided light duty trucks for a period of 3 years/36,000 miles free of charge.
  • Page 427 Mileage of vehicle and description of problem Roadside Assistance is available 23 hours a day, 7 days a week, 365 days a year, including weekends and holidays. Should you have any questions about roadside assistance, call the GMC Roadside Assistance Center or contact your dealer.
  • Page 428 Bumper to Bumper Limited Warranty. warranty repairs to a five day maximum, or up to a GMC reserves the right to make any changes or $30 allowance for a rental vehicle, cab, bus or other discontinue the Courtesy Transportation Program at any transportation in lieu of a loaner.
  • Page 429 BBB AUTO LINE Both GMC and your GMC dealer are committed to Council of Better Business Bureaus, Inc. making sure you are completely satisfied with your new 4200 Wilson Boulevard vehicle.
  • Page 430 General Motors. program or in the courts. For further information, contact the BBB at 1-800-955-5 IO0 or the GMC To contact NHTSA, you may either call the Auto Safety Customer Assistance Center at 1 -800-GMC-8782 Hotline toll-free at 1-800-424-9393 (or 366-0123 i n the ( 1 -800-462-8782).
  • Page 431 In addition to notifying NHTSA (or Transport Canada) in Canada is 1-800-668-5539. in a situation like this, we certainly hope you’ll notify us. Please call us 1-800-GMC-8782 1-800-462-8782) or write: GMC Consumer Relations 3 1 E. Judson Street 1607-04 Pontiac. MI 48342-2230 8-11.
  • Page 432 1998 GMC SERVICE PUBLICATIONS ORDERING INFORMATION The following publications covering the operation and servicing of your vehicle can be purchased by fillin the Service Publication Order Form in this book and mailing it in with your check, money order or credit card information to Helm, Incorporated (address below.)
  • Page 433 Orders will be mailed within 10 days of receipt. Please allow ade uate time for postal ORDER TOLL FREt service. If further information is needed, write to the address s own below or call (NOTE: For Credit Card Holde Only) 1-800-782-4356.
  • Page 434 NOTES 8-14...
  • Page 435 Section 9 Index ..........Accessory Power Outlet 2-59 6-69 Appearance Care and Materials ......Adding Equipment to the Outside of Your Vehicle .
  • Page 436 Brake ........6-38 Adjustment ........Fluid 6-35, 7-46 ......Master Cylinder 6-35 ........Parking 2-25 ......... PedalTravel 6-38 ......Replacing System Parts 6-38 ......System Warning Light 2-67 ........Trailer 4-56 ....7-42 Transmission Shift Interlock Check ........
  • Page 437 ............. . . 8- 10 Vinyl 6-63...
  • Page 438 G a g e s ... . . % 6 g Engine Coolant Temperature ....Engine Oil Pressure .
  • Page 439 ..............Tachometer 2-63 Ignition Positions...
  • Page 440 ..Loading Your Vehicle for Off-Road Driving ......Lockout Switch Locks ......
  • Page 441 ..... . . Manual Transmission Owner Checks and Services 7-40 ........Owner Publications.
  • Page 442 ....1-22 Replacement Pregnancy. Use of Safety Belts ......
  • Page 443 ..............LapBelt 1-32 Security Light...
  • Page 444 ................Tires 6-51 Steering...
  • Page 445 ........Vehicle Hitches 4-55 .
  • Page 446 ............. . Windshield Washet- Winter Drivins 4-36...
  • Page 452 X 9 8 0 4...

Table of Contents