Gmc 2002 Sierra User Manual

1-3Manual Lumbar Control (If Equipped)If your vehicle has a lumbaradjustment, the knob islocated on the outboard sideof the seat cushion.To increase o

2-19Content Theft-Deterrent (If Equipped)Your vehicle may be equipped with a ContentTheft-Deterrent alarm system.With this system, theSECURITY message

2-20Testing the AlarmThe alarm can be tested by following these steps:1. From inside the vehicle, lower the driver’s windowand open the driver’s door.

2-21New Vehicle “Break-In”NOTICE:Your vehicle doesn’t need an elaborate“break-in.” But it will perform better in the longrun if you follow these guide

2-22B (LOCK): This position locks your ignition andtransmission. It’s a theft-deterrent feature. You will onlybe able to remove your key when the igni

2-23Key Release Button (Manual Transmission)The ignition key cannot beremoved from the ignitionof manual transmissionvehicles unless the keyrelease bu

2-24Starting Your EngineAutomatic TransmissionMove your shift lever to PARK (P) or NEUTRAL (N).Your engine won’t start in any other position -- that’s

2-25When starting your engine in very cold weather (below0 F or -18 C), do this:1. With your foot off the accelerator pedal, turn theignition key to S

2-26To Use the Engine Coolant Heater1. Turn off the engine.2. Open the hood and unwrap the electrical cord. Thecord is located on the driver’s side of

2-27Automatic Transmission OperationIf your vehicle is equipped with an automatictransmission, it features an electronic shift positionindicator withi

2-28PARK (P): This position locks your rear wheels. It’s thebest position to use when you start your engine becauseyour vehicle can’t move easily. If

1-4Move the seat forward or rearward by moving thewhole horizontal control forward or rearward.Raise or lower the rear of the seat cushion by raisingo

2-29REVERSE (R): Use this gear to back up. If yourvehicle is equipped with the Allison Transmission, the R may blink on the PRNDL if the shift inhibit

2-30DRIVE (D): This position is for normal driving. If youneed more power for passing, and you’re:Going less than about 35 mph (55 km/h), push youracc

2-31FIRST (1): This position gives you even more power(but lower fuel economy) than SECOND (2). You canuse it on very steep hills, or in deep snow or

2-32Manual Transmission OperationFive-Speed (VORTEC 6000 V8 Engine)Here’s how to operate your transmission.FIRST (1) is intended only for heavy loads

2-33FOURTH (4) and FIFTH (5): Shift into the higherforward gears the same way you do for THIRD (3).Slowly let up on the clutch pedal as you press thea

2-34NEUTRAL: Use this position when you start or idleyour engine.REVERSE (R): To back up, first press down the clutchpedal. Wait for the vehicle to st

2-35During the first 500 miles (805 km) of vehicle use, startthe vehicle moving in FIRST (1) gear. This allows theclutch components to wear-in properl

2-36Shift SpeedsCAUTION:If you skip a gear when you downshift, you couldlose control of your vehicle. You could injureyourself or others. Don’t shift

2-37Shift LightIf you have a manualtransmission, you may havea SHIFT light. This lightwill show you when to shiftto the next higher gear forbest fuel

2-38To release the parking brake, hold the regular brakepedal down. Pull the bottom edge of the lever, locatedabove the parking brake pedal, marked BR

1-5Memory Seat (If Equipped)If your vehicle has thisfeature, the buttons used toprogram and recall thedriver’s seat and reclinerposition are located o

2-392. Move the shift lever into PARK (P) position like this:Pull the shift lever toward you.Move the lever up as far as it will go.3. Be sure the tra

2-40Leaving Your Vehicle With the EngineRunning (Automatic Transmission Only)CAUTION:It can be dangerous to leave your vehicle with theengine running.

2-41Shifting Out of PARK (P) (Automatic Transmission Only)If your vehicle has an automatic transmission shift lockcontrol system, you have to fully ap

2-42Parking Over Things That BurnCAUTION:Things that can burn could touch hot exhaustparts under your vehicle and ignite. Don’t parkover papers, leave

2-43Running Your Engine While You’reParked (Automatic Transmission)It’s better not to park with the engine running. But if youever have to, here are s

2-44Manual Selectable Ride (If Equipped)The main function of this system is to provide superiorride comfort while trailering or fully loaded, as well

2-45Locking Rear Axle (If Equipped)If your vehicle has this feature, your locking rear axlecan give you additional traction on snow, mud, ice, sandor

2-46Manual Transfer Case (If Equipped)The transfer case shift lever is on the floor to the right ofthe driver. Use this lever to shift into and out of

2-47An indicator on the bezel near the lever shows you thetransfer case settings:2-Wheel High (2HI): This setting is used for driving inmost street an

2-48To shift into or out of 4-Wheel Low (4LO) or NEUTRAL (N):1. Slow the vehicle to a roll, about 1 to 3 mph (2 to 5 km/h) and shift an automatic tran

1-6Reclining SeatbacksTo adjust the front seatback, lift the manual lever locatedon the outboard side of the seat. Release the lever tolock the seatba

2-49You can choose among four driving settings:2HI: This setting is used for driving in most street and highway situations. Your front axle is not eng

2-50NEUTRAL: Shift the vehicle’s transfer case toNEUTRAL only when towing your vehicle. See“Recreational Vehicle Towing” or “Towing YourVehicle” in th

2-51Shifting Out of 4LOTo shift from 4LO to 4HI, AUTO 4WD or 2HI yourvehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmissio

2-52Shifting Out of NEUTRALTo shift out of NEUTRAL:1. Set the parking brake and apply the regular brake pedal.2. Shift the transmission to NEUTRAL (N)

2-534HI: This setting engages your front axle to help drive your vehicle. Use 4HI when you need extratraction, such as on snowy or icy roads, or in mo

2-54Shifting from 2HI to 4HIPress and release the 4HI switch. This can be done atany speed, and the front axle will lock automaticallywith some delay.

2-55Shifting into NEUTRALTo shift the transfer case to NEUTRAL, first make surethe vehicle is parked so that it will not roll:1. Set the parking brake

2-56QUADRASTEER (4WS) (If Equipped)The QUADRASTEER System has a control anddiagnostic module that monitors and records currentsystem status and opera

2-574WS: In this mode all four wheels will help steer thevehicle. If you want to use 4WS, and your vehicle is notin this mode, press the 4 Wheel Steer

2-58Car Washes for QUADRASTEEREquipped VehiclesNOTICE:Because your vehicle has a wider rear track somecar washes may be too narrow for your vehicle.Co

1-7CAUTION:Sitting in a reclined position when your vehicle isin motion can be dangerous. Even if you buckleup, your safety belts can’t do their job w

2-59Tilt WheelA tilt wheel allows you to adjust the steering wheelbefore you drive. You can raise it to the highest level to give your legs more room

2-60Turn and Lane Change SignalsThe turn signal has two upward (for right) andtwo downward (for left) positions. These positions allowyou to signal a

2-61Turn Signal On ChimeIf your turn signal is left on for more than 3/4 of a mile(1.2 km), a chime will sound at each flash of the turnsignal. To tur

2-62Windshield WipersYou control the windshield wipers by turning the bandwith the wiper symbol on it.For a single wiping cycle, turn the band to MIST

2-63Cruise Control (If Equipped)With cruise control, you canmaintain a speed of about25 mph (40 km/h) or morewithout keeping your footon the accelerat

2-64Setting Cruise ControlCAUTION:If you leave your cruise control switch on whenyou’re not using cruise, you might hit a buttonand go into cruise whe

2-65Increasing Speed While Using Cruise ControlThere are two ways to go to a higher speed:Use the accelerator pedal to get to the higher speed.Press t

2-66Exterior LampsThe control on the driver’s side of your instrument paneloperates the exterior lamps.Turn the control clockwise to operate the lamps

2-67Automatic Headlamp SystemWhen it is dark enough outside, your automaticheadlamp system will turn on your headlamps at thenormal brightness along w

2-68Daytime Running LampsDaytime Running Lamps (DRL) can make it easier forothers to see the front of your vehicle during the day.DRL can be helpful i

1-8On some models, the head restraints tilt forward andrearward also.The rear seat head restraints in your vehicle may beadjustable. They work the sam

2-69When necessary, you may turn off the AutomaticHeadlamp System and the Daytime Running Lamps(DRL) feature by following these steps:1. Turn the igni

2-70Press the button to turn the fog lamps on. Press thebutton again to turn them off. An indicator light willglow in the button when the fog lamps ar

2-71Cargo LampThe cargo lamp button islocated on the left side ofthe instrument panel.Press the button to turn the cargo lamp on. Press thebutton agai

2-72Illuminated EntryYour vehicle is equipped with an illuminated entry feature.When a door is opened, the dome lamps will come on ifthe DOME OVERRIDE

2-73MirrorsInside Day/Night Rearview MirrorPull the tab under the mirror toward you to reduce glarefrom headlamps behind you after dark. Push the taba

2-74Temperature DisplayThe temperature can be displayed by pressing the TEMPbutton. Pressing the TEMP button once briefly, willtoggle the temperature

2-75Electrochromic Mirror OperationThe time period you need to press and hold the TEMPbutton to turn the electrochromic feature on or off issix second

2-76Compass VarianceThe mirror is set in zone eight upon leaving the factory.It will be necessary to adjust the compass to compensatefor compass varia

2-77Electrochromic Inside Rearview Mirrorwith Compass, Temperature Display andOnStar Controls (If Equipped)When on, an electrochromic mirror automatic

2-78Electrochromic Mirror OperationThe electrochromic (self dimming) mirror function isturned on automatically each time the ignition is started.To op

1-9Rear Seat (Extended Cab)Folding the Rear SeatThe extended cab’s rear seat can be folded up to providemore cargo space. To fold the seat do the foll

2-79Compass CalibrationThe compass may need calibration if one of thefollowing occurs:After five seconds, the display does not show acompass heading (

2-80Camper-Type Outside Mirrors (If Equipped)If your vehicle is equipped with camper-type mirrors,they can be adjusted so you can have a clear view of

2-81Electric Outside Rearview Mirrors (If Equipped)The control for this featureis located on the driver’sdoor armrest.Move the selector switch located

2-82Storage CompartmentsYour vehicle includes a number of storagecompartments for storage of often-used items.Some vehicles have storage areas in the

2-83The pegs inside the compartment door are used tomake sure the button on the compartment door willcontact the control button on the garage door ope

2-84Sunglasses Storage CompartmentIf you have the long overhead console, the center overheadcompartment can be used to store your sunglasses.To open t

2-85Center Console Storage Area (If Equipped)Your vehicle may have a console compartment betweenthe bucket seats.To open it, insert the console key in

2-86Tonneau Cover (If Equipped)1. To remove, unsnap thecover. Roll up and stowusing the buckle and thestrap located at the frontof the box.A. Back rai

2-872. Remove the three bows by gently pushing themagainst the spring-loaded end. The three bows arelabeled front/center/rear to remind you in whichor

2-88Ashtrays and Cigarette LighterFront AshtrayThe front ashtray is located near the center of theinstrument panel. Pull on the bottom of the ashtray

1-10To fold the rear seat, do the following:1. Pull up on the strap loopat the rear of the seatcushion. Then, pull theseat cushion up and foldit forwa

2-89Accessory Power OutletsWith accessory power outlets you can plug in auxiliaryelectrical equipment such as a cellular telephone or CB radio.Two acc

2-90OnStar System (If Equipped)OnStar is a vehicle communications system that offers avariety of services and provides a one-touch hands-freecommunic

2-91Volume Control: You can control the volume of theOnStar System using either the volume knob on theradio or if equipped, the steering wheel volume

2-92OnStar MED-NET: Med-Net can store yourpersonal medical history and provide it to emergencypersonnel if necessary. (Requires activation andaddition

2-93OnStar System LimitationsComplete limitations can be found on the SubscriberServices Agreement. In order to provide you withexcellent service, cal

2-94The Instrument Panel - Your Information System

2-95The main components of your instrument panel are the following:A. Dome Lamp ButtonB. Exterior Lamp ControlsC. Air OutletsD. Automatic Transfer Cas

2-96Instrument Panel ClusterUnited States Heavy Duty Automatic Transmission version shown. Canada, Light Duty Automatic and Manual Transmission Cluste

2-97Your instrument cluster is designed to let you know at aglance how your vehicle is running. You’ll know howfast you’re going, about how much fuel

2-98Warning Lights, Gages and IndicatorsThis part describes the warning lights and gages thatmay be on your vehicle. The pictures will help youlocate

1-11CAUTION:It is extremely dangerous to ride in a cargo area,inside or outside of a vehicle. In a collision,people riding in these areas are more lik

2-99Air Bag Readiness LightThere is an air bag readiness light on the instrumentpanel, which shows the air bag symbol. The systemchecks the air bag’s

2-100Air Bag Off LightWhen you turn the right front passenger’s air bag off,this light will come on and stay on to remind you thatthe air bag has been

2-101CAUTION:If the air bag readiness light ever comes on whenyou have turned off the air bag, it means thatsomething may be wrong with the air bag sy

2-102Readings in the low warning zone may occur when alarge number of electrical accessories are operating inthe vehicle and the engine is left at an

2-103Brake System Warning LightWith the ignition on, the brake system warning light willflash when you set the parking brake. The light will flashif t

2-104Anti-Lock Brake System Warning LightWith the anti-lock brakesystem, this light will come on when you startyour engine and may stayon for several

2-105Traction Off Light (If Equipped)If you have the TractionAssist System, this lightshould come on brieflywhen you turn the ignitionto RUN.If the li

2-106Engine Coolant Temperature GageUnited States CanadaThis gage shows the engine coolant temperature.It also provides an indicator of how hard your

2-107At approximately 265 F (130 C), the message centerwill display a TRANS FLUID HOT message and thetransmission will enter a transmission protection

2-108Malfunction Indicator Lamp (ServiceEngine Soon Light in the United States orCheck Engine Light in Canada)United States CanadaYour vehicle is equi

1-12Take the simplest vehicle. Suppose it’s just a seat on wheels.Put someone on it.

2-109NOTICE:Modifications made to the engine, transmission,exhaust, intake or fuel system of your vehicle orthe replacement of the original tires with

2-110If the Light Is FlashingThe following may prevent more serious damage toyour vehicle:Reducing vehicle speed.Avoiding hard accelerations.Avoiding

2-111Have you recently changed brands of fuel?If so, be sure to fuel your vehicle with quality fuel. See “Fuel” in the Index. Poor fuel quality will c

2-112Oil Pressure GageUnited States CanadaThe oil pressure gage shows the engine oil pressure inpsi (pounds per square inch) when the engine is runnin

2-113Cruise Light (If Equipped)United States CanadaThe CRUISE light comes on whenever you set yourcruise control. See “Cruise Control” in the Index.4W

2-114Fuel GageUnited States CanadaWhen the ignition is on, the fuel gage tells you abouthow much fuel you have left in your tank.The gage will first i

2-115Message CenterThe message center is located on the left side of theinstrument panel cluster. It gives you important safetyand maintenance facts.

2-116Trans Fluid HotIf you have an automatic transmission, you have atransmission temperature warning display contained inthe message center.If the tr

2-117Trans Hot...Idle EngineIf you have an automatic transmission, you have atransmission over-temperature display contained in themessage center.If t

2-118Low CoolantThis message is displayedwhen the cooling system islow on coolant.The engine may overheat. See “Engine Coolant” in theIndex and have y

i2002 GMC SierraOwner’s ManualLitho in U.S.A. Copyright General Motors Corporation 06/18/01Part Number X2215 A First Edition All Rights Reserved

1-13Get it up to speed. Then stop the vehicle. The riderdoesn’t stop.The person keeps going until stopped by something.In a real vehicle, it could be

2-119Reduced Engine Power (V8 Gasoline Engines Only)This message is displayedwhen the cooling systemtemperature gets too hot and the engine furtherent

2-120Change Engine OilThis message is displayedwhen the engine oil needs to be changed. The messageis only displayed for15 seconds at the start ofeach

2-121Service 4WD (If Equipped)If the SERVICE 4WDmessage comes on, theremay be a problem with theautomatic transfer case andservice is required.Malfunc

2-122Cargo Lamp OnThis message is displayedwhen the cargo lamp isturned on and the ignitionkey is turned to RUN.Low FuelThis message is displayedwhen

3-3-1Section 3 Comfort Controls and Audio SystemsIn this section, you’ll find out how to operate the comfort control and audio systems offered with yo

3-2Comfort ControlsStandard Comfort ControlsFan KnobThe knob on the left side of the control panel adjusts thefan speed. To increase airflow, turn the

3-3Heater and Air Conditioning ComfortControls (If Equipped)Fan KnobThe knob on the left side of the control panel adjusts thefan speed. To increase a

3-4 (Blend): Airflow is delivered through the flooroutlets, center floor console outlets (if equipped), thewindshield defroster outlets and the side w

3-5The auto recirculation feature will activate when thefollowing are true:The air conditioning system is activated,the outside air button is on, andt

3-6AUTO: If the knob is in AUTO, the fan speed will varyas the system maintains the selected temperature.When both the fan control and mode knobs are

1-14or the instrument panel ... or the safety belts!With safety belts, you slow down as the vehicle does.You get more time to stop. You stop over more

3-7 (Blend): Airflow is divided equally between thefloor outlet and the windshield defroster outlets. The airconditioning compressor may run to dehumi

3-8Mode Knob -- Automatic OperationThe right knob on the control panel allows you tochoose the direction of air delivery. When the system isset for au

3-9Air ConditioningOn hot days, open the windows long enough to let hotair inside escape. This reduces the time it takes for yourvehicle to cool down.

3-10HeatingThe heater works best if you keep your windows closedwhile using it. On cold days, use the floor or bi-levelsetting with the temperature kn

3-11The defogger will shut itself off after several minutes. If you need additional warming time, press the buttonagain. You can turn the defogger off

3-12Your vehicle has air outlets in the center and on the sides of yourinstrument panel.You can move the levers from side-to-side or up anddown to dir

3-13Audio SystemsYour audio system has been designed to operate easilyand give years of listening pleasure. You will get themost enjoyment out of it i

3-14AM-FM StereoPlaying the RadioPower: Turn the VOLUME knob clockwise to turn thesystem on and counterclockwise to turn the system off.VOLUME: Turn t

3-15In addition to the four stations already set, up to threemore stations may be preset on each band by pressingtwo adjoining pushbuttons at the same

3-16AM-FM Stereo with Compact Disc Playerand Automatic Tone Control (If Equipped)Playing the RadioPWR (Power): Press this knob to turn the system onan

1-15Here Are Questions Many People AskAbout Safety Belts -- and the AnswersQ:Won’t I be trapped in the vehicle after anaccident if I’m wearing a safet

3-17 SEEK : Press the right or left arrow to seek to thenext station or previous station and stay there. The radiowill seek to stations with a strong

3-18Setting the Tone (Bass/Treble)BASS: Press this knob lightly so it extends. Turn theknob clockwise to increase bass and counterclockwise todecrease

3-192 RDM (Random): Press this pushbutton to play thetracks on the disc in random order. RANDOM willappear on the display. Press this pushbutton again

3-20Compact Disc MessagesERR (Error): If this message appears and the disccomes out, it could be for one of the following reasons:If you’re driving on

3-21Once the tape is playing, use the control knobs for VOL, AUTO TONE, BAL, FADE, BASS and TREBjust as you do for the radio. A lighted tape symbolsho

3-22AM FM: Press this button to listen to the radio when a tape is playing. The inactive tape will remain in the player.CD AUX (Auxiliary): Press this

3-23Activating the Theft-Deterrent FeatureThe instructions which follow explain how to enter yoursecret code to activate the THEFTLOCK system. It isre

3-24If you enter the wrong code eight times, INOP willappear on the display. You will have to wait an hourwith the ignition on before you can try agai

3-25Understanding Radio ReceptionAMThe range for most AM stations is greater than for FM,especially at night. The longer range, however, cancause stat

3-26If this message appears on the display, your remotecassette player needs to be cleaned. It will still playtapes, but you should clean it as soon a

1-16How to Wear Safety Belts ProperlyAdultsThis part is only for people of adult size.Be aware that there are special things to know about safety belt

4-4-1Section 4 Your Driving and the RoadHere you’ll find information about driving on different kinds of roads and in varying weather conditions. We’v

4-2Defensive DrivingThe best advice anyone can give about driving is: Drive defensively.Please start with a very important safety device in yourvehicl

4-3Drunken DrivingDeath and injury associated with drinking and driving isa national tragedy. It’s the number one contributor to the highway death tol

4-4It’s the amount of alcohol that counts. For example, ifthe same person drank three double martinis (3 ouncesor 90 ml of liquor each) within an hour

4-5The body takes about an hour to rid itself of the alcoholin one drink. No amount of coffee or number of coldshowers will speed that up. “I’ll be ca

4-6Control of a VehicleYou have three systems that make your vehicle go whereyou want it to go. They are the brakes, the steering andthe accelerator.

4-7Avoid needless heavy braking. Some people drive inspurts -- heavy acceleration followed by heavy braking -- rather than keeping pace with traffic.

4-8Let’s say the road is wet and you’re driving safely.Suddenly, an animal jumps out in front of you. You slamon the brakes and continue braking. Here

4-9Remember: Anti-lock doesn’t change the time you needto get your foot up to the brake pedal or always decreasestopping distance. If you get too clos

4-10The Traction Assist System may operate on dry roadsunder some conditions. When this happens, you maynotice a reduction in acceleration. This is no

1-174. Push the latch plate into the buckle until it clicks.Pull up on the latch plate to make sure it is secure. If the belt isn’t long enough, see “

4-11To turn the system onor off press the TASon/off button locatedto the left of thesteering wheel on theinstrument panel.If you used the button to tu

4-12SteeringPower SteeringIf you lose power steering assist because the enginestops or the system is not functioning, you can steer but it will take m

4-13Steering in EmergenciesThere are times when steering can be more effectivethan braking. For example, you come over a hill andfind a truck stopped

4-14Off-Road RecoveryYou may find that your right wheels have dropped off theedge of a road onto the shoulder while you’re driving.If the level of the

4-15Do not get too close to the vehicle you want to passwhile you’re awaiting an opportunity. For one thing,following too closely reduces your area of

4-16Loss of ControlLet’s review what driving experts say about whathappens when the three control systems (brakes, steeringand acceleration) don’t hav

4-17Off-Road Driving with YourFour-Wheel-Drive VehicleThis off-road guide is for vehicles that have four-wheel drive.Also, see “Anti-Lock Brakes” in t

4-18The following steps must be performed on each of thepush-pins to remove the air dam:1. Insert a tool into thepush-pin slot and pulldownward until

4-19To reinstall the lower air dam, do the following:1. Line up each push-pinwith its intended retainerand push the washerportion of the push-pintowar

4-20Loading Your Vehicle for Off-Road DrivingThere are some important things to remember abouthow to load your vehicle.The heaviest things should be o

1-18Q: What’s wrong with this?A: The shoulder belt is too loose. It won’t give nearlyas much protection this way.CAUTION:You can be seriously hurt if

4-21Environmental ConcernsOff-road driving can provide wholesome and satisfyingrecreation. However, it also raises environmentalconcerns. GM recognize

4-22Getting Familiar with Off-Road DrivingIt’s a good idea to practice in an area that’s safe andclose to home before you go into the wilderness.Off-r

4-23Scanning the TerrainOff-road driving can take you over many different kinds of terrain. You need to be familiar with the terrainand its many diffe

4-24Driving on Off-Road HillsOff-road driving often takes you up, down or across ahill. Driving safely on hills requires good judgment andan understan

4-25Driving UphillOnce you decide you can safely drive up the hill, youneed to take some special steps.Use a low gear and get a firm grip on the steer

4-26Q: What should I do if my vehicle stalls, or is aboutto stall, and I can’t make it up the hill?A: If this happens, there are some things you shoul

4-27Q: Suppose, after stalling, I try to back down the hill and decide I just can’t do it. Whatshould I do?A: Set the parking brake, put your transmis

4-28Driving DownhillWhen off-roading takes you downhill, you’ll want toconsider a number of things:How steep is the downhill? Will I be able to mainta

4-29Q: Are there some things I should not do whendriving down a hill?A: Yes! These are important because if you ignorethem you could lose control and

4-30Driving Across an InclineSooner or later, an off-road trail will probably go acrossthe incline of a hill. If this happens, you have to decidewheth

1-19Q: What’s wrong with this?A: The belt is buckled in the wrong place.CAUTION:You can be seriously injured if your belt isbuckled in the wrong place

4-31Q: What if I’m driving across an incline that’s nottoo steep, but I hit some loose gravel and start toslide downhill. What should I do?A: If you f

4-32Driving in Mud, Sand, Snow or IceWhen you drive in mud, snow or sand, your wheelswon’t get good traction. You can’t accelerate as quickly, turning

4-33If the water isn’t too deep, then drive through it slowly.At fast speeds, water splashes on your ignition systemand your vehicle can stall. Stalli

4-34Driving at NightNight driving is more dangerous than day driving. One reason is that some drivers are likely to be impaired -- by alcohol or drugs

4-35You can be temporarily blinded by approachingheadlamps. It can take a second or two, or even severalseconds, for your eyes to readjust to the dark

4-36The heavier the rain, the harder it is to see. Even if yourwindshield wiper blades are in good shape, a heavy raincan make it harder to see road s

4-37Hydroplaning doesn’t happen often. But it can if yourtires do not have much tread or if the pressure in one ormore is low. It can happen if a lot

4-38City DrivingOne of the biggest problems with city streets is theamount of traffic on them. You’ll want to watch out forwhat the other drivers are

4-39Freeway DrivingMile for mile, freeways (also called thruways, parkways,expressways, turnpikes or superhighways) are the safestof all roads. But th

4-40The exit ramp can be curved, sometimes quite sharply.The exit speed is usually posted.Reduce your speed according to your speedometer, notto your

1-20Q: What’s wrong with this?A: The belt is over an armrest.CAUTION:You can be seriously injured if your belt goesover an armrest like this. The belt

4-41Highway HypnosisIs there actually such a condition as “highwayhypnosis”? Or is it just plain falling asleep at the wheel? Call it highway hypnosis

4-42Hill and Mountain RoadsDriving on steep hills or mountains is different fromdriving in flat or rolling terrain.If you drive regularly in steep cou

4-43CAUTION:Coasting downhill in NEUTRAL (N) or with theignition off is dangerous. Your brakes will have to do all the work of slowing down. They coul

4-44Winter DrivingHere are some tips for winter driving:Have your vehicle in good shape for winter.You may want to put winter emergency supplies inyou

4-45Driving on Snow or IceMost of the time, those places where your tires meet theroad probably have good traction.However, if there is snow or ice be

4-46If you don’t have a traction system, accelerate gently.Try not to break the gentle traction. If you accelerate toofast, the drive wheels will spin

4-47Tie a red cloth to your vehicle to alert police thatyou’ve been stopped by the snow.Put on extra clothing or wrap a blanket around you.If you have

4-48Then, shut the engine off and close the window almostall the way to preserve the heat. Start the engine againand repeat this only when you feel re

4-49Dinghy TowingWhen towing your vehicle, turn the ignition off. To prevent your battery from draining while towing,remove the IGN 0 fuse from the in

4-50Four-Wheel-Drive VehiclesUse the following procedure to tow your vehicle:1. Firmly set the parking brake.2. Shift an automatic transmission to PAR

1-21Q: What’s wrong with this?A: The shoulder belt is worn under the arm. It shouldbe worn over the shoulder at all times.CAUTION:You can be seriously

4-51Dolly Towing (Two-Wheel Drive Vehicles)Two-Wheel-Drive VehiclesTwo-wheel-drive vehicles, should not be towed with the rear wheels on the ground. T

4-52Loading Your VehicleThe Certification/Tire label is found on the rear edge ofthe driver’s door or in the Incomplete Vehicle Documentin the cab.The

4-53CAUTION:Do not load your vehicle any heavier than theGVWR, or either the maximum front or rearGAWR. If you do, parts on your vehicle canbreak, and

4-54PayloadThe payload capacity is shown on the Certification/Tirelabel. This is the maximum load capacity that yourvehicle can carry. Be sure to incl

4-55Add-On EquipmentWhen you carry removable items, you may need to put alimit on how many people you carry inside your vehicle.Be sure to weigh your

4-56Q: How do I know if my vehicle can handle a snow plow?A: Some vehicles are built with a special package,called RPO VYU (snow plow prep package). I

4-57Q: What is front axle reserve capacity, and how doI calculate it?A: Front axle reserve capacity is the differencebetween your front GAWR and the f

4-58For example, adding a 700 lb. (318 kg) snow plowactually adds more than 700 lb. (318 kg) to thefront axle. Using the formula, if the snow plow is4

4-59CAUTION:On some vehicles equipped with certain frontmounted equipment, such as a snow plow, it maybe possible to load the front axle to the frontG

4-60Truck-Camper Loading InformationThis label is inside your glove box. It will tell you ifyour vehicle can carry a slide-in camper, how much of aloa

1-22Q: What’s wrong with this?A: The belt is twisted across the body.CAUTION:You can be seriously injured by a twisted belt. Ina crash, you wouldn’t h

4-61Here is an example of proper truck and camper match:A. Camper Center of GravityB. Recommended Center of Gravity Location ZoneThe camper’s center o

4-62Trailer RecommendationsYou must subtract your hitch loads from the CWR foryour vehicle. Weigh your vehicle with the trailerattached, so that you w

4-63Towing a TrailerCAUTION:If you don’t use the correct equipment and driveproperly, you can lose control when you pull atrailer. For example, if the

4-64If You Do Decide To Pull A TrailerIf you do, here are some important points:There are many different laws, including speed limitrestrictions, havi

4-65Tow/Haul Mode (If Equipped)Tow/haul is a feature on automatic transmissionequipped vehicles that assists when pulling a heavytrailer or a large or

4-66Weight of the TrailerHow heavy can a trailer safely be?It depends on how you plan to use your rig. Forexample, speed, altitude, road grades, outsi

4-67C-1500 Regular Cab Short Box (2WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4300 V6 (Auto) 3.08 4,600 lbs. (2 088 kg) 9,000 lbs. (4 086 kg)

4-68C-1500 Extended Cab Short Box (2WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4300 V6 (Auto) 3.42 4,700 lbs. (2 133 kg) 9,500 lbs. (4 313 kg

4-69C-1500 Crew Cab Short Box (2WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR6000 V8 3.73 8,300 lbs. (3 765 kg) 14,000 lbs. (6 356 kg)4.10 10,3

4-70C-1500 Extended Cab Long Box (2WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4800 V8 (Auto) 3.42 6,000 lbs. (2 724 kg) 11,000 lbs. (4 994 kg

iiGENERAL MOTORS, GM, the GM Emblem, GMC,the GMC Truck Emblem and the name SIERRA areregistered trademarks of General Motors Corporation.This manual i

1-23To unlatch the belt, just push the button on the buckle.The belt should go back out of the way.Before you close the door, be sure the belt is out

4-71K-1500 Regular Cab Short Box (4WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4300 V6 (Auto) 3.42 4,800 lbs. (2 179 kg) 9,500 lbs. (4 313 kg)

4-72K-1500 Extended Cab Short Box (4WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4800 V8 (Auto) 3.73 6,800 lbs. (3 087 kg) 12,000 lbs. (5 448 k

4-73K-1500 Regular Cab Long Box (4WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4300 V6 (Auto) 3.42 4,700 lbs. (2 133 kg) 9,500 lbs. (4 313 kg)3

4-74K-1500 Extended Cab Long Box (4WD)*Engine (Trans.) Axle Ratio Max. Trailer Wt. GCWR4800 V8 (Auto) 3.73 6,700 lbs. (3 041 kg) 12,000 lbs. (5 448 kg

4-75C-2500 Regular Cab Long Box HD (2WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 10,500 lbs. (4 767 kg) 16,000 lbs. (7 264 kg)8100 V8 3.73

4-76C-2500 Extended Cab Long Box HD (2WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 10,200 lbs. (4 627 kg) 16,000 lbs. (7 264 kg)8100 V8 3.7

4-77C-2500 Crew Cab Long Box HD (2WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 10,000 lbs. (4 540 kg) 16,000 lbs. (7 264 kg)8100 V8 3.73 1

4-78K-2500 Regular Cab Short Box HD (4WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 10,200 lbs. (4 630 kg) 16,000 lbs. (7 264 kg)8100 V8 3.7

4-79K-2500 Extended Cab Long Box HD (4WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 9,900 lbs. (4 494 kg) 16,000 lbs. (7 264 kg)8100 V8 3.73

4-80K-2500 Crew Cab Long Box HD (4WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 9,900 lbs. (4 491 kg) 16,000 lbs. (7 264 kg)8100 V8 3.73 12,

1-24The best way to protect the fetus is to protect themother. When a safety belt is worn properly, it’s morelikely that the fetus won’t be hurt in a

4-81C-3500 Extended Cab (2WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 9,800 lbs. (4 449 kg) 16,000 lbs. (7 264 kg)8100 V8 4.10 12,000 lbs.

4-82K-3500 Regular Cab (4WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 9,900 lbs. (4 494 kg) 16,000 lbs. (7 264 kg)8100 V8 4.10 12,000 lbs.

4-83K-3500 Crew Cab (4WD)*Engine Axle Ratio Max. Trailer Wt. GCWR6000 V8 4.10 9,300 lbs. (4 222 kg) 16,000 lbs. (7 264 kg)8100 V8 4.10 12,000 lbs. (5

4-84You can ask your dealer for our trailering information oradvice, or you can write us at the address listed in yourWarranty and Owner Assistance In

4-85Total Weight on Your Vehicle’s TiresBe sure your vehicle’s tires are inflated to the upperlimit for cold tires. You’ll find these numbers on theCe

4-86Trailer BrakesIf your trailer weighs more than 2,000 lbs. (900 kg)loaded, then it needs its own brakes -- and they must beadequate. Be sure to rea

4-87Following DistanceStay at least twice as far behind the vehicle ahead as youwould when driving your vehicle without a trailer. Thiscan help you av

4-88Driving On GradesReduce speed and shift to a lower gear before you startdown a long or steep downgrade. If you don’t shiftdown, you might have to

4-89Parking on HillsCAUTION:You really should not park your vehicle, with atrailer attached, on a hill. If something goeswrong, your rig could start t

4-90When You Are Ready to Leave AfterParking on a Hill1. Apply your regular brakes and hold the pedal downwhile you:start your engine,shift into a gea

1-25CAUTION:Air bags inflate with great force, faster than theblink of an eye. If you’re too close to an inflatingair bag, as you would be if you were

4-91Trailer Wiring HarnessYour vehicle is equipped with one of the followingwiring harnesses for towing a trailer or hauling aslide-in camper.Basic Tr

4-92Heavy-Duty Trailer Wiring Package (If Equipped)Your pickup may be equipped with the eight-wire trailertowing harness. This harness with a seven-pi

4-93Camper/Fifth-Wheel Trailer Wiring Package (If Equipped)The eight-wire camper harness is located under the front edge of the pickup box on the driv

4-94Instrument Panel Jumper Wiring HarnessThis harness is included with the heavy-duty andcamper/fifth-wheel trailer wiring packages. The harnessis fo

4-95Auxiliary Battery (If Equipped)The auxiliary battery provision can be used to supplyelectrical power to additional equipment that you maychoose to

4-96Power WinchesIf you wish to use a power winch on your vehicle, onlyuse it when your vehicle is stationary or anchored.NOTICE:Using a power winch w

4-97To use PTO speed control in Preset Mode (FactorySetting) do the following:1. Engage the PTO2. Select PARK (P) or NEUTRAL (N) range. Apply theparki

4-98To use PTO speed control in variable mode (while stationary) do the following:1. Engage the PTO.2. Vehicle speed must be less than 5 mph.3. Make s

5-5-1Section 5 Problems on the RoadHere you’ll find what to do about some problems that can occur on the road.5-2 Hazard Warning Flashers5-2 Other War

5-2Hazard Warning FlashersYour hazard warning flashers let you warn others. Theyalso let police know you have a problem. Your front andrear turn signa

1-26There is an air bag readinesslight on the instrumentpanel, which shows the airbag symbol.The system checks the air bag electrical system formalfun

5-3Jump StartingIf your battery (or batteries) has run down, you maywant to use another vehicle and some jumper cables tostart your vehicle. Be sure t

5-42. If you have a vehicle with a diesel engine with twobatteries (or more), you should know before youbegin that, especially in cold weather, you ma

5-55. Open the hoods and locate the positive (+) andnegative (-) terminal locations of the other vehicle.Your vehicle has a remote positive (+) jump s

5-6CAUTION:Fans or other moving engine parts can injure youbadly. Keep your hands away from moving partsonce the engine is running.6. Check that the j

5-78. Don’t let the other endtouch metal. Connect itto the positive (+)terminal of the goodbattery. Use a remotepositive (+) terminal ifthe vehicle ha

5-8V8 Engine V6 Engine, Diesel Similar10. Connect the other end of the negative (-) cable tothe negative (-) terminal of the dead battery or to aremot

5-9Jumper Cable RemovalA. Heavy, Unpainted Metal Engine Part or RemoteNegative (-) TerminalB. Good Battery or Remote Positive (+) and RemoteNegative (

5-10Engine OverheatingYou will find a coolant temperature gage on yourvehicle’s instrument panel. See “Engine CoolantTemperature Gage” in the Index. I

5-11If Steam Is Coming From Your EngineCAUTION:Steam from an overheated engine can burn youbadly, even if you just open the hood. Stay awayfrom the en

5-12If No Steam Is Coming From Your EngineAn overheat warning, along with a low coolant message,can indicate a serious problem. See “Low CoolantMessag

1-27The right front passenger’s air bag is in the instrumentpanel on the passenger’s side.CAUTION:If something is between an occupant and an airbag, t

5-13Cooling System (Gasoline Engine)When you decide it’s safe to lift the hood, here’s whatyou’ll see:8100 V8 EnginesAll Other EnginesA. Coolant Surge

5-14The coolant level shouldbe at or above the FILLCOLD mark. If it isn’t,you may have a leak at thepressure cap or in theradiator hoses, heaterhoses,

5-15NOTICE:Engine damage from running your enginewithout coolant isn’t covered by your warranty.See “Overheated Engine Protection OperatingMode” in th

5-16If no coolant is visible in the surge tank, add coolant as follows:CAUTION:Steam and scalding liquids from a hot coolingsystem can blow out and bu

5-17CAUTION:Adding only plain water to your cooling systemcan be dangerous. Plain water, or some otherliquid such as alcohol, can boil before the prop

5-18Your vehicle may beequipped with one ofthe two caps shown.1. Park the vehicle on a level surface. You can removethe coolant surge tank pressure ca

5-194. With the coolant surge tank pressure cap off, start theengine and let it run until you can feel the upperradiator hose getting hot. Watch out f

5-20Engine Fan NoiseYour vehicle has a clutched engine cooling fan. Whenthe clutch is engaged, the fan spins faster to providemore air to cool the eng

5-21Changing a Flat TireIf a tire goes flat, avoid further tire and wheel damageby driving slowly to a level place. Turn on your hazardwarning flasher

5-22Removing the Spare Tire and ToolsRegular CabExtended and Crew CabThe equipment you’ll need is behind the passenger’sseat. For Extended and Crew Ca

1-28When should an air bag inflate?An air bag is designed to inflate in a moderate to severefrontal or near-frontal crash. The air bag will inflateonl

5-231. If there is a cover, move the seats forward and turnthe wing nut on the cover counterclockwise toremove it. For Crew Cab models, pull up the se

5-24Follow these instructions to lower the spare tire:1. If the vehicle is equipped with a hoist lock, open thespare tire lock cover on the bumper and

5-25Attach the wheel wrench to the jack handle extensions(as needed). Attach the jack handle to the jack.Turn the wheel wrench clockwise to raise the

5-26If your vehicle has wheelnut caps, loosen them byturning the wheel wrenchcounterclockwise. If youhave a center cap withwheel nut caps, the wheelnu

5-272. Position the jack under the vehicle. If the flat tire is on the front of the vehicle (Two-Wheel Drive1500 Series vehicles), position the jack u

5-28Front Position 2WD 1500 SeriesFront Position All Other Models

5-29Rear Position3. Make sure the jack head is positioned so that the rearaxle is resting securely between the grooves that areon the jack head. Turn

5-30CAUTION:Rust or dirt on the wheel, or on the parts towhich it is fastened, can make the wheel nutsbecome loose after a time. The wheel could comeo

5-31Front Position 2WD 1500 Series Front Position All Other Models

5-32Rear Position7. Turn the wheel wrench counterclockwise to lowerthe vehicle. Lower the jack completely.8. Tighten the nuts firmly in a crisscross s

1-29What will you see after an air bag inflates?After an air bag inflates, it quickly deflates, so quicklythat some people may not even realize the ai

5-33CAUTION:Incorrect wheel nuts or improperly tightenedwheel nuts can cause the wheel to become looseand even come off. This could lead to an acciden

5-34Storing a Flat or Spare Tire and ToolsCAUTION:Storing a jack, a tire or other equipment in thepassenger compartment of the vehicle couldcause inju

5-35Store the tire under the rear of the vehicle in the sparetire carrier. To store the tire, do the following:1. Put the tire on the ground at the re

5-366. Make sure the tire is stored securely. Push, pull, andthen try to rotate or turn the tire. If the tire moves,use the wheel wrench/hoist shaft t

5-37NOTICE:Spinning your wheels can destroy parts of yourvehicle as well as the tires. If you spin the wheelstoo fast while shifting your transmission

5-38Using the Recovery HooksYour vehicle may be equipped with recovery hooks. Thehooks are provided at the front of your vehicle. You mayneed to use t

5-39CAUTION:These hooks, when used, are under a lot of force.Always pull the vehicle straight out. Never pullon the hooks at a sideways angle. The hoo

5-40✍NOTES

6-6-1Section 6 Service and Appearance CareHere you will find information about the care of your vehicle. This section begins with service and fuel inf

6-2ServiceYour dealer knows your vehicle best and wants you tobe happy with it. We hope you’ll go to your dealer forall your service needs. You’ll get

1-30Let only qualified technicians work on your air bag system. Improper service can mean that your air bag system won’t work properly. See your deale

6-3CAUTION:You can be injured and your vehicle could bedamaged if you try to do service work on avehicle without knowing enough about it.Be sure you h

6-4Gasoline SpecificationsIt is recommended that gasoline meet specificationswhich were developed by the American AutomobileManufacturers Association

6-5AdditivesSome gasolines that are not reformulated for lowemissions may contain an octane-enhancing additive calledmethylcyclopentadienyl manganese

6-6Filling Your TankCAUTION:Gasoline vapor is highly flammable. It burnsviolently, and that can cause very bad injuries.Don’t smoke if you’re near gas

6-7CAUTION:If you get gasoline on yourself and thensomething ignites it, you could be badly burned.Gasoline can spray out on you if you open thefuel c

6-8Filling a Portable Fuel ContainerCAUTION:Never fill a portable fuel container while it is inyour vehicle. Static electricity discharge from thecont

6-9Hood ReleaseTo open the hood do the following:1. Pull the handle locatedinside the vehicle to the lower left of thesteering wheel.2. Then go to the

6-10Engine Compartment OverviewWhen you lift up the hood on the VORTEC 4300 V6 engine, you’ll see the following:A. Engine Air Cleaner/FilterB. Coolant

6-11When you lift up the hood on the VORTEC 5300 V8 engine (VORTEC 4800 and 6000 V8 engines similar), you willsee the following:A. Engine Air Cleaner/

6-12When you lift up the hood on the VORTEC 8100 V8 engine you will see the following:A. Engine Air Cleaner/FilterB. Coolant Surge TankC. Air Filter R

1-31This switch should only be turned to AIR BAG OFF ifthe person in the right front passenger’s position is amember of a passenger risk group identif

6-13Noise Control SystemThe following information relates to compliance withfederal noise emission standards for vehicles with aGross Vehicle Weight R

6-14Engine Oil (Gasoline Engine)If your vehicle has a diesel engine, see “Engine Oil(Diesel Engine)” in the Diesel Engine Supplement.If the CHECK ENG

6-15Pull out the dipstick and clean it with a paper towel orcloth, then push it back in all the way. Remove it again,keeping the tip down, and check t

6-16Your vehicle may have acap with text and a graphic,or just a graphic as shown.The engine oil fill cap for the VORTEC 4800, 5300 and6000 V8 engines

6-17As in the chart shown previously, SAE 5W-30 is best foryour vehicle. However, you can use SAE 10W-30 if it’sgoing to be 0 F (-18 C) or above. Thes

6-18Engine Oil AdditivesDon’t add anything to your oil. The recommended oilswith the starburst symbol are all you will need for goodperformance and en

6-19What to Do with Used OilUsed engine oil contains certain elements that may beunhealthy for your skin and could even cause cancer.Don’t let used oi

6-20Your engine air cleaner/filter is located in the frontcorner of the engine compartment on the passenger’sside of the vehicle. See “Engine Compartm

6-21CAUTION:Operating the engine with the air cleaner/filteroff can cause you or others to be burned. The aircleaner not only cleans the air, it stops

6-223. Remove the air filter by pulling downward on theelement. Remove the second portion of the air filterby sliding it towards the rear of the vehic

1-32Medical Condition. A passenger has a medicalcondition which, according to his or her physician:causes the passenger air bag to pose a special risk

6-23How to CheckBecause this operation can be a little difficult, you may choose to have this done at the dealershipservice department.If you do it yo

6-24Checking the Fluid LevelPrepare your vehicle as follows:Park your vehicle on a level place. Keep the engine running.With the parking brake applied

6-253. Check both sides of the dipstick, and read the lowerlevel. The fluid level must be in the COLD area,below the cross–hatched area, for a cold ch

6-26Automatic Transmission Fluid(Allison Only)When to Check and ChangeA good time to check your automatic transmission fluidlevel is when the engine o

6-27Checking the Fluid LevelPrepare your vehicle as follows:Park your vehicle on a level place. Keep the engine running.With the parking brake applied

6-28Hot Check ProcedureThe fluid must be hot to ensure an accurate check. The fluid level rises as temperature increases.1. Operate the transmission i

6-29NOTICE:We recommend you use only fluid labeledDEXRON-III, because fluid with that label ismade especially for your automatic transmission.Damage c

6-30Then, follow these steps:5-Speed for VORTEC 4300 V6 and 4800 V8 EnginesShown, Other Manual Transmissions Similar1. Remove the filler plug.2. Check

6-31Hydraulic ClutchThe hydraulic clutch linkage in your vehicle isself-adjusting. The clutch master cylinder reservoir isfilled with hydraulic clutch

6-32Rear AxleWhen to Check LubricantRefer to the Maintenance Schedule to determine howoften to check the lubricant. See “ScheduledMaintenance Services

iiiHow to Use this ManualMany people read their owner’s manual from beginningto end when they first receive their new vehicle. If youdo this, it will

1-33CAUTION:If the air bag readiness light ever comes on whenyou have turned off the air bag, it means thatsomething may be wrong with the air bag sys

6-33How to Check LubricantManual Transfer CaseAutomatic Transfer CaseTo get an accurate reading, the vehicle should be on alevel surface.If the level

6-34Front AxleWhen to Check LubricantRefer to the Maintenance Schedule to determine howoften to check the lubricant. See “ScheduledMaintenance Service

6-35Engine CoolantThe cooling system in your vehicle is filled withDEX-COOL engine coolant. This coolant is designedto remain in your vehicle for 5 y

6-36What to UseUse a mixture of one-half clean, drinkable water andone-half DEX-COOL coolant which won’t damagealuminum parts. If you use this coolan

6-37Checking CoolantThe coolant surge tank islocated in the enginecompartment on thepassenger’s side of thevehicle. See “EngineCompartment Overview” i

6-38Coolant Surge Tank Pressure CapYour vehicle may beequipped with one of the two caps shown.The coolant surge tank pressure cap must be fullyinstall

6-39Power Steering Fluid8100 V8 EngineAll Other Engines

6-40When to Check Power Steering FluidIt is not necessary to regularly check power steeringfluid unless you suspect there is a leak in the system oryo

6-41NOTICE:When using concentrated washer fluid,follow the manufacturer’s instructions foradding water.Don’t mix water with ready-to-use washerfluid.

6-42So, it isn’t a good idea to “top off” your brake fluid.Adding brake fluid won’t correct a leak. If you add fluidwhen your linings are worn, then y

1-34Servicing Your Air Bag-Equipped VehicleAir bags affect how your vehicle should be serviced.There are parts of the air bag system in several places

6-43What to AddWhen you do need brake fluid, use only DOT-3 brakefluid. Refer to “Recommended Fluids and Lubricants”in the Index. Use new brake fluid

6-44Brake WearYour vehicle has four-wheel disc brakes.Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the br

6-45Replacing Brake System PartsThe braking system on a vehicle is complex. Its manyparts have to be of top quality and work well together ifthe vehic

6-46Vehicle StorageIf you’re not going to drive your vehicle for 25 days ormore, remove the black, negative (-) cable from the battery. This will help

6-47Headlamps1. Remove the two pins on the top of the headlampassembly. To remove the pins, turn the outer pinoutward and pull it straight up. To remo

6-48Front Turn Signal, Sidemarker andDaytime Running LampsA. Sidemarker LampB. Retainer ClipC. Front Turn Signal LampD. Daytime Running Lamp1. Remove

6-49Center High-Mounted Stoplamp (CHMSL)and Cargo Lamp1. Remove the screws and lift off the lamp assembly.A. Cargo LampsB. Center High-Mounted Stoplam

6-504. If a CHMSL bulb is replaced, put the new bulb intothe socket and press it in until it is tight.If a cargo lamp is replaced, put a new cargo lam

6-51Taillamps (Pickup Models)1. Open the tailgate.2. Remove the two rearlamp assembly screwsnear the tailgate latchand pull out the lamp assembly.A. S

6-523. Press the release tab and turn the bulb socket counterclockwise to remove it from the taillamp housing.4. Pull the old bulb straight out from t

1-35Q: What if I add a snow plow? Will it keep the airbags from working properly?A: We’ve designed our air bag systems to workproperly under a wide ra

6-53Roof Marker Lamps1. Remove the two screwsand lift off the lens.2. The center roof marker lamps has six screws to remove.3. Turn the old bulb count

6-544. Put a new bulb into thesocket and turnclockwise until it locksin place.5. Reinstall the lens and tighten the screws.

6-55Windshield Wiper Blade ReplacementWindshield wiper blades should be inspected at leasttwice a year for wear and cracking. See “Wiper BladeCheck” i

6-56TiresYour new vehicle comes with high-quality tires made bya leading tire manufacturer. If you ever have questionsabout your tire warranty and whe

6-57Inflation -- Tire PressureThe Certification/Tire label, which is on the rear edge ofthe driver’s door, shows the correct inflation pressuresfor yo

6-58Tire Inspection and RotationTires should be rotated every 6,000 to 8,000 miles (10 000 to 13 000 km). Any time you notice unusualwear, rotate your

6-59If your vehicle has dual rear wheels and the tread designfor your front tires is the same as your rear tires, alwaysuse one of the correct rotatio

6-60When It’s Time for New TiresOne way to tell when it’stime for new tires is tocheck the treadwearindicators, which willappear when your tires haveo

6-61Buying New TiresTo find out what kind and size of tires you need, look atthe Certification/Tire label.The tires installed on your vehicle when it

6-62Uniform Tire Quality GradingQuality grades can be found where applicable on the tiresidewall between tread shoulder and maximum sectionwidth. For

1-36To make the belt shorter, pull its free end as shown untilthe belt is snug.Buckle, position and release it the same way as the lappart of a lap-sh

6-63Temperature -- A, B, CThe temperature grades are A (the highest), B, and C,representing the tire’s resistance to the generation ofheat and its abi

6-64Wheel ReplacementReplace any wheel that is bent, cracked, or badly rustedor corroded. If wheel nuts keep coming loose, the wheel,wheel bolts and w

6-65NOTICE:The wrong wheel can also cause problems withbearing life, brake cooling, speedometer orodometer calibration, headlamp aim, bumperheight, ve

6-66Tire ChainsCAUTION:If your vehicle has dual wheels or P265/75R16 orLT265/75R16 size tires, don’t use tire chains. Theycan damage your vehicle beca

6-67Appearance CareRemember, cleaning products can be hazardous. Someare toxic. Others can burst into flame if you strike amatch or get them on a hot

6-68Cleaning of Fabric/CarpetYour dealer has cleaners for the cleaning of fabric andcarpet. They will clean normal spots and stains verywell. You can

6-69Stains caused by candy, ice cream, mayonnaise, chilisauce and unknown stains can be removed as follows:1. Carefully scrape off excess stain.2. Fir

6-70Cleaning Interior Plastic ComponentsUse only a mild soap and water solution on a soft cloth or sponge. Commercial cleaners may affect thesurface f

6-71Cleaning the Outside of theWindshield and Wiper BladesIf the windshield is not clear after using the windshieldwasher, or if the wiper blade chatt

6-72Cleaning Exterior Lamps/LensesUse only lukewarm or cold water, a soft cloth and a carwashing soap to clean exterior lamps and lenses. Followinstru

1-37Lap-Shoulder Belt (Extended Cab and Crew Cab)The positions next to the windows have lap-shoulderbelts. Here’s how to wear one properly.1. Pick up

6-73Cleaning Aluminum orChrome-Plated Wheels (If Equipped)Keep your wheels clean using a soft clean cloth withmild soap and water. Rinse with clean wa

6-74Finish DamageAny stone chips, fractures or deep scratches in the finishshould be repaired right away. Bare metal will corrodequickly and may devel

6-75GM Vehicle Care/Appearance Materials

6-76Vehicle Identification Number (VIN)This is the legal identifier for your vehicle. It appears ona plate in the front corner of the instrument panel

6-77Electrical SystemAdd-On Electrical EquipmentNOTICE:Don’t add anything electrical to your vehicleunless you check with your dealer first. Someelect

6-78Instrument Panel Fuse BlockThe fuse block access dooris on the driver’s side edgeof the instrument panel. Pull off the cover to accessthe fuse blo

6-79Fuse UsageCRUISE Cruise Control, Instrument Panel Cluster4WD Four-Wheel Drive System,Auxiliary BatteryTURN Exterior Lamps, Turn Signals,Hazard Lam

6-80Center Instrument Panel Fuse BlockThe center instrument panel utility block is locatedunderneath the instrument panel, to the left of thesteering

6-81Underhood Fuse Block The underhood fuse block in the engine compartment onthe driver’s side of the vehicle near the battery. Lift thecover for acc

6-82

1-383. To make the lap part tight, pull down on the buckleend of the belt as you pull up on the shoulder part.The lap part of the belt should be worn

6-83*1 INJ B--Gasoline Engine and Diesel Engine. *2 ECM I--Gasoline Engine; ECMRPV--Diesel Engine.*3 02 A--Gasoline Engine; FUEL HT--Diesel Engine. *4

6-84Fuse UsageB/U LP Backup Lamps, AutomaticTransmission Shift Lock Control SystemATC Automatic Transfer CaseRR DEFOG Rear Window Defogger, Heated Mir

6-85Fuse UsageW/W PMP Windshield Washer PumpHORN Horn (Relay)IGN C Ignition Switch, Fuel Pump,PRND321 Display, CrankRDO AMP Not UsedHAZ LP Exterior La

6-86Capacities and SpecificationsPlease refer to “Recommended Fluids and Lubricants” in the Index for more information. All capacities areapproximate.

6-87Cooling System CapacityAfter refill, the level must be rechecked. See “Cooling System” in the Index.Engine Transmission QuantityVORTEC 4300 V6 A

6-88Engine Oil with Filter CapacityAfter refill, the level must be rechecked. Add enough engine oil so that the fluid is within the proper operating r

6-89Fuel Tank CapacityType QuantityShort Bed 26.0 U.S. gallons (98 L)Long Bed 34.0 U.S. gallons (128 L)Chassis Cab(Pickup Box Delete)34.0 U.S. gallon

6-90Normal Maintenance Replacement PartsReplacement part numbers listed in this section are based on the latest information available at the time of p

7-7-1Section 7Maintenance ScheduleThis section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safet

7-2Have you purchased the GM Protection Plan? The Plansupplements your new vehicle warranties. See yourWarranty and Owner Assistance booklet or your d

1-39The safety belt locks if there’s a sudden stop or a crash.The safety belt also locks if you pull the belt veryquickly out of the retractor.CAUTION

7-3How This Section is OrganizedThis maintenance schedule is divided into five parts:“Part A: Scheduled Maintenance Services” explainswhat to have don

7-4Part A: Scheduled Maintenance ServicesUsing Your Maintenance ScheduleWe at General Motors want to help you keep yourvehicle in good working conditi

Scheduled Maintenance7-5The services shown in this schedule up to 100,000 miles(166 000 km) should be repeated after 100,000 miles(166 000 km) at the

Scheduled Maintenance7-6Engine Oil and Chassis LubricationScheduled MaintenanceChange engine oil and filter as indicated by the GM Oil Life System (o

Scheduled Maintenance7-7

Scheduled Maintenance7-8

Scheduled Maintenance7-97,500 Miles (12 500 km)Check rear/front axle fluid level and add fluid as needed. Check constantvelocity joints and axle seals

Scheduled Maintenance7-1025,000 Miles (41 500 km)Allison Transmission Only: Change automatic transmission fluid and filters ifthe vehicle is mainly dr

Scheduled Maintenance7-1137,500 Miles (62 500 km)Check rear/front axle fluid level and add fluid as needed. Check constantvelocity joints and axle sea

Scheduled Maintenance7-1250,000 Miles (83 000 km)Change automatic transmission fluid and filter if the vehicle’s GVWR is over8600 lbs., if the vehicle

1-40Rear Safety Belt Comfort Guides forChildren and Small AdultsIf your vehicle has a rear seat, your vehicle has shoulderbelt comfort guides. This fe

Scheduled Maintenance7-1360,000 Miles (100 000 km)If Equipped: Replace passenger compartment air filter. If you drive regularlyunder dusty conditions,

Scheduled Maintenance7-1475,000 Miles (125 000 km)If Equipped: Replace passenger compartment air filter. If you drive regularlyunder dusty conditions,

Scheduled Maintenance7-1582,500 Miles (137 500 km)Check rear/front axle fluid level and add fluid as needed. Check constantvelocity joints and axle se

Scheduled Maintenance7-16100,000 Miles (166 000 km)Inspect spark plug wires. An Emission Control Service. Replace spark plugs. An Emission Control Ser

Scheduled Maintenance7-17150,000 Miles (240 000 km)Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs fir

7-18Part B: Owner Checks and ServicesListed in this part are owner checks and services whichshould be performed at the intervals specified to helpensu

7-19At Least Twice a YearRestraint System CheckMake sure the safety belt reminder light and all yourbelts, buckles, latch plates, retractors and ancho

7-20Weatherstrip LubricationSilicone grease on weatherstrips will make them lastlonger, seal better, and not stick or squeak. Applysilicone grease wit

7-21Starter Switch CheckCAUTION:When you are doing this check, the vehicle couldmove suddenly. If it does, you or others could beinjured. Follow the s

7-22Automatic Transmission Shift Lock Control System CheckCAUTION:When you are doing this check, the vehicle couldmove suddenly. If it does, you or ot

1-412. Place the guide over the belt and insert the two edgesof the belt into the slots of the guide.3. Be sure that the belt is not twisted and it li

7-23Parking Brake and Automatic TransmissionPARK (P) Mechanism CheckCAUTION:When you are doing this check, your vehiclecould begin to move. You or oth

7-24Part C: Periodic Maintenance InspectionsListed in this part are inspections and services whichshould be performed at least twice a year (for insta

7-25Throttle System InspectionInspect the throttle system for interference or binding,and for damaged or missing parts. Replace parts asneeded. Replac

7-26Part D: Recommended Fluids and LubricantsFluids and lubricants identified below by name, part number or specification may be obtained from your de

7-27USAGE FLUID/LUBRICANTManualTransmission(5-Speed with Low Gear,RPO MW3)GM Goodwrench SyntheticManual Transmission Fluid (GM Part No. 12346190 - 1 q

7-28USAGE FLUID/LUBRICANTAutomaticTransfer CaseAUTO-TRAK II Fluid (GM Part No. 12378508).Front AxlePropshaft Splineor One-PiecePropshaft Spline(Two-Wh

7-29Part E: Maintenance RecordAfter the scheduled services are performed, record the date, odometer reading and who performed the service in theboxes

7-30Maintenance RecordDATEODOMETERREADINGSERVICED BY MAINTENANCE PERFORMED

8-8-1Section 8 Customer Assistance InformationHere you will find out how to contact GMC if you need assistance. This section also tells you how to obt

8-2Customer Satisfaction ProcedureYour satisfaction and goodwill are important to yourdealer and to GMC. Normally, any concerns with thesales transact

1-424. Buckle, position and release the safety belt asdescribed in “Rear Seat Passenger Positions(Extended Cab and Crew Cab)” earlier in thissection.

8-3STEP TWO -- If after contacting a member of dealership management, it appears your concern cannot be resolved by the dealership without furtherhelp

8-4You may contact the BBB using the toll-free telephonenumber or write them at the following address:BBB Auto LineCouncil of Better Business Bureaus,

8-5CanadaGeneral Motors of Canada LimitedCustomer Communication Centre, 163-0051908 Colonel Sam DriveOshawa, Ontario L1H 8P71-800-263-3777 (English)1-

8-6Roadside AssistanceGMC’s Roadside Assistance provides stranded ownerswith over-the-phone roadside repairs, location of thenearest GMC dealer or the

8-7Trip Interruption Assistance: GMC will reimburse anyreasonable trip interruption expenses (up to $500.00)when directly associated with warranty dis

8-8Courtesy TransportationGMC has always exemplified quality and value in itsoffering of motor vehicles. To enhance your ownershipexperience, we and o

8-9Public Transportation or Fuel ReimbursementIf your vehicle requires overnight warranty repairs,reimbursement up to $30 per day (five days maximum)m

8-10Canadian Vehicles: For warranty repairs during theComplete Vehicle Coverage period of the GeneralMotors of Canada New Vehicle Limited Warranty,alt

8-11REPORTING SAFETY DEFECTS TO THE CANADIAN GOVERNMENTIf you live in Canada, and you believe that your vehiclehas a safety defect, you should immedia

8-12SERVICE PUBLICATIONS ORDERING INFORMATIONService ManualsService Manuals have the diagnosis and repairinformation on engines, transmission, axle, s

ivVehicle Damage WarningsAlso, in this book you will find these notices:NOTICE:These mean there is something that could damageyour vehicle.In the noti

1-43CAUTION:People should never hold a baby in their armswhile riding in a vehicle. A baby doesn’t weighmuch -- until a crash. During a crash a baby w

1-44CAUTION:Children who are up against, or very close to, anyair bag when it inflates can be seriously injuredor killed. Air bags plus lap-shoulder b

1-45CAUTION:Newborn infants need complete support,including support for the head and neck. This isnecessary because a newborn infant’s neck isweak and

1-46Restraint Systems for ChildrenAn infant car bed (A), a special bed made for use in amotor vehicle, is an infant restraint system designed torestra

1-47A forward-facing child seat (C-E) provides restraint forthe child’s body with the harness and also sometimeswith surfaces such as T-shaped or shel

1-48Q: How do child restraints work?A: A child restraint system is any device designed foruse in a motor vehicle to restrain, seat, or positionchildre

1-49Where to Put the Restraint (Regular Cab Pickup)The child restraint must be secured properly in the rightfront passenger seat. If you want to secur

1-50CAUTION:A child in a rear-facing child restraint can beseriously injured or killed if the right frontpassenger’s air bag inflates. This is because

1-51CAUTION:A child riding in a rear-facing child restraint canbe seriously injured or killed if the right frontpassenger’s air bag inflates. This is

1-52In Canada, the law requires that forward-facing childrestraints have a top strap, and that the strap beanchored. In the United States, some child

vThese are some examples of vehicle symbols you may find on your vehicle:

1-53Right Front Passenger Position Top Strap Anchor(All Models)You’ll find the top strap anchor for the right frontpassenger seat behind the seat, nea

1-54Rear Seat Top Strap Anchors (Extended Cab Models)If your vehicle is an extended cab model, you’ll find thetop strap anchors for the rear seating p

1-55When using a child restraint with a top strap in thecenter rear position, route the top strap through thefabric loop on the seatback. Then, raise

1-56Lower Anchorages and Top Tethers forChildren (LATCH System) (If Equipped)Your vehicle may have the LATCH system. If it does,you’ll find anchors (A

1-57In order to use the system, you need either aforward-facing child restraint that has attachingpoints (B) at its base and a top tether anchor (C),

1-58CAUTION:If a LATCH-type child restraint isn’t attached toits anchorage points, the restraint won’t be ableto protect a child sitting there. In a c

1-59Securing a Child Restraint in a RearOutside Seat Position (Extended Cab and Crew Cab)There is limited space in the rear seating area of anextended

1-603. Buckle the belt. Make sure the release button ispositioned so you would be able to unbuckle thesafety belt quickly if you ever had to.4. Pull t

1-615. To tighten the belt, feed the shoulder belt back into the retractor while you push down on the child restraint. If you’re using a forward-facin

1-62Securing a Child Restraint in the CenterFront Seat PositionDon’t use child restraints in this position. The restraintswon’t work properly.Securing

viModel ReferenceThis manual covers these models:Regular Cab PickupExtended Cab PickupCrew CabChassis Cab

1-63There is limited space in the rear seating area of anextended cab model. If you want to secure a child restraintin a rear seating position of an e

1-643. Run the vehicle’s safety belt through or around therestraint. The child restraint instructions will showyou how.4. Buckle the belt. Make sure t

1-65Securing a Child Restraint in the RightFront Seat PositionIf your child restraint is equipped with the LATCHsystem, see “Lower Anchorages and Top

1-66CAUTION:A child in a rear-facing child restraint can beseriously injured or killed if the right frontpassenger’s air bag inflates. This is because

1-67You’ll be using the lap-shoulder belt. See the earlier partabout the top strap if the child restraint has one. Be sureto follow the instructions t

1-685. Pull the rest of the shoulder belt all the way out ofthe retractor to set the lock.6. To tighten the belt, feed the shoulder belt back into the

1-69To remove the child restraint, just unbuckle the vehicle’ssafety belt and let it go back all the way. The safety beltwill move freely again and be

1-70Older ChildrenOlder children who have outgrown booster seats shouldwear the vehicle’s safety belts.If you have the choice, a child should sit next

1-71CAUTION:Never do this.Here two children are wearing the same belt. Thebelt can’t properly spread the impact forces. In acrash, the two children ca

1-72CAUTION:Never do this.Here a child is sitting in a seat that has alap-shoulder belt, but the shoulder part is behindthe child. If the child wears

1-1-1Section 1 Seats and Restraint SystemsHere you’ll find information about the seats in your vehicle and how to use your safety belts properly. You

1-73Safety Belt ExtenderIf the vehicle’s safety belt will fasten around you, youshould use it.But if a safety belt isn’t long enough to fasten, yourde

1-74✍NOTES

2-2-1Section 2 Features and ControlsHere you can learn about the many standard and optional features on your vehicle, and information on starting,shif

2-2WindowsCAUTION:Leaving children in a vehicle with the windowsclosed is dangerous. A child can be overcome bythe extreme heat and can suffer permane

2-3Power Windows (If Equipped)If your vehicle is equipped with power windows, thecontrols are located on each of the side doors in the frontand rear.T

2-4Lock-Out Switch If you have power windows on a Crew Cab, thedriver’s door power window switch has a lockoutfeature. This feature prevents all windo

2-5KeysCAUTION:Leaving children in a vehicle with the ignitionkey is dangerous for many reasons. A child orothers could be badly injured or even kille

2-6Your vehicle has onedouble-sided key for theignition and all door locks.Your vehicle may also havea key that locks and unlocksonly the center floor

2-7Door LocksCAUTION:Unlocked doors can be dangerous.Passengers -- especially children -- caneasily open the doors and fall out of amoving vehicle. Wh

2-8Power Door Locks (If Equipped)If your vehicle has thispower door lock switch,press the raised side of theswitch, marked L, on eitherfront door to l

1-2Seats and Seat ControlsThis section tells you about the seats -- how to adjustthem, and fold them up and down. It also tells you aboutreclining fro

2-9Programmable Automatic Door Locks (If Equipped)If your vehicle has power door locks, it is equipped witha feature that enables you to program the d

2-10The following is a list of the available programming options:All doors lock/Only the driver’s door unlocks:Press the lock side of the power door l

2-11Child Security Locks (Crew Cabs) (If Equipped)With this feature, you can lock the rear side doors so that they cannot be opened from the inside by

2-12Keyless Entry System (If Equipped)If your vehicle has this feature, you can lock and unlockyour doors from about 3 feet (1 m) up to 100 feet (30 m

2-13OperationUNLOCK: Pressing this button once will unlock thedriver’s door. The parking lamps will flash and theinterior lights will come on. Pressin

2-14Battery ReplacementUnder normal use, the battery in your remote keylessentry transmitter should last about two years.You can tell the battery is w

2-15ResynchronizationResynchronization may be necessary due to the securitymethod used by this system. The transmitter does notsend the same signal tw

2-16To open a rear access doorfrom the inside, the frontdoor must be opened first.Then, use the handle locatedon the inside of the rearaccess door to

2-17Tailgate RemovalThe tailgate on your vehicle can be removed to allow fordifferent loading situations. Although the tailgate can beremoved without

2-18Key in the IgnitionIf you leave your vehicle with the keys inside, it’s aneasy target for joy riders or professional thieves -- sodon’t do it.When