Global-machinery-company Sierra 1999 User Manual

yellowblue iThe 1999 GMC Sierra Owner’s Manual1-1 Seats and Restraint SystemsThis section tells you how to use your seats and safety belts properl

yellowblue 1-4Power Seat(s) (If Equipped)Horizontal Control: If your vehicle has a power seat,you can adjust it with this control located at the o

yellowblue 2-28Manual Transfer Case (If Equipped)The transfer case shift lever is on the floor to the right ofthe driver. Use this lever to shift

yellowblue 2-29CAUTION:Shifting the transfer case to NEUTRAL (N) cancause your vehicle to roll even if the transmissionis in PARK (P), or if you h

yellowblue 2-30Automatic Transfer Case (If Equipped)The transfer case switchesare located to the left of theinstrument panel cluster.Use these swi

yellowblue 2-314HI: Use 4HI when you need extra traction, such as onsnowy or icy roads or in most off-road situations. Thissetting also engages yo

yellowblue 2-32Shifting to 4LOTo shift to 4LO, the ignition must be in RUN and the vehicle must be stopped or moving less than 3 mph (4.8 km/h) wi

yellowblue 2-33Shifting Out of NEUTRALTo shift out of NEUTRAL:1. Set the parking brake and apply the regular brake pedal.2. Shift the transmission

yellowblue 2-34NOTICE:Driving with the parking brake on can causeyour rear brakes to overheat. You may have toreplace them, and you could also dam

yellowblue 2-35CAUTION: (Continued)With four-wheel drive if your transfer case is inNEUTRAL (N), your vehicle will be free to roll,even if your sh

yellowblue 2-36Move the lever up as far as it will go.3. Be sure the transfer case is in a drive gear -- not in NEUTRAL (N).4. Turn the ignition k

yellowblue 2-37If you have to leave your vehicle with the enginerunning, be sure your vehicle is in PARK (P) and theparking brake is firmly set be

yellowblue 1-5Power Lumbar Control (If Equipped)If you have power lumbaradjustment, you canincrease or decrease lumbarsupport in an area of thelow

yellowblue 2-38If you ever hold the brake pedal down but still can’tshift out of PARK (P), try this:1. Turn the key to the OFF ignition position.2

yellowblue 2-39CAUTION:Things that can burn could touch hot exhaustparts under your vehicle and ignite. Don’t parkover papers, leaves, dry grass o

yellowblue 2-40Running Your Engine While You’reParked (Automatic Transmission)It’s better not to park with the engine running. But ifever you have

yellowblue 2-41Manual Selectable Ride (If Equipped)The main function of this system is to provide superiorride comfort while trailering or fully l

yellowblue 2-42Locking Rear AxleIf your vehicle has this feature, your locking rear axlecan give you additional traction on snow, mud, ice, sandor

yellowblue 2-43The driver’s window also has an express down featurethat allows the window to be lowered without holdingthe switch. Press and hold

yellowblue 2-44Tilt Wheel (If Equipped)The tilt steering wheelallows you to adjust thesteering wheel before you drive.You can also raise it to the

yellowblue 2-45Turn Signal and Lane Change SignalsThe turn signal has two upward (for right) and twodownward (for left) positions. These positions

yellowblue 2-46Headlamp High/Low Beam ChangerTo change the headlamps from low to high beam or highto low beam, pull the multifunction lever all th

yellowblue 2-47You can set the wiper speed for a long or short delaybetween wipes. This can be very useful in light rain orsnow. Turn the band to

yellowblue 1-6Memory Seat (If Equipped)The memory functioncontrols the driver’s seat cushion and recliner positions.It does not store the lumbar o

yellowblue 2-48Cruise ControlWith cruise control, you canmaintain a speed of about25 mph (40 km/h) or morewithout keeping your footon the accelera

yellowblue 2-49Setting Cruise ControlCAUTION:If you leave your cruise control switch on whenyou’re not using cruise, you might hit a buttonand go

yellowblue 2-50Increasing Speed While Using Cruise ControlThere are two ways to go to a higher speed:Use the accelerator pedal to get to the highe

yellowblue 2-51Exterior LampsYour parking lamp and headlamp switch is on thedriver’s side of your instrument panel.Turn the knob clockwise to the

yellowblue 2-52The system may also turn on your headlamps whendriving through a parking garage, heavy overcastweather or a tunnel. This is normal.

yellowblue 2-53To idle an automatic transmission equipped vehicle withthe DRL off, set the parking brake. Shifting thetransmission into PARK (P) w

yellowblue 2-54Auxiliary Roof Mounted Lamp Switch (If Equipped)This switch includeswiring provisions for adealer or a qualifiedservice center to i

yellowblue 2-55Front Reading Lamps (If Equipped)If your vehicle has readinglamps, press the button nextto the lamp to turn the lampon. The lamps c

yellowblue 2-56Battery Run-Down ProtectionThis feature shuts off the dome, reading, glove box,cargo and underhood lamps if they are left on for mo

yellowblue 2-57Mirror OperationThe right side of the switch located at the bottom of themirror turns the electrochromic mirror on and off. TheLED,

yellowblue 1-7Heated Front Seats (If Equipped)If your vehicle has heatedfront seats, the ignition mustbe in RUN for them to operate.The control fo

yellowblue 2-58The compass can be calibrated in one of two ways:Drive the vehicle in circles at 5 mph (8 km/h) or lessuntil the display reads a di

yellowblue 2-59Outside Manual Adjust MirrorsAdjust your outside mirrors so you can just see the side ofyour vehicle and have a clear view of objec

yellowblue 2-60Convex Outside Mirror (Option)Your passenger’s side mirror may be convex. A convexmirror’s surface is curved so you can see more fr

yellowblue 2-61Installing a Garage Door OpenerIf you have the long overhead console, a garage dooropener can be conveniently installed in the fron

yellowblue 2-625. Now, with thecompartment doorclosed, press the buttonmarked PUSH again to make sure the garage door openeroperates properly.With

yellowblue 2-63Instrument Panel Cupholder (If Equipped)Your vehicle may have a cupholder in the middle of theinstrument panel.To use the cupholder

yellowblue 2-64Armrest Storage Compartment (If Equipped)Your vehicle may have a center armrest storagecompartment in the front bench seat.To open

yellowblue 2-65Accessory Power OutletsTwo auxiliary power outlets are located near thecigarette lighter. Use these outlets to power mobiletelephon

yellowblue 2-66Instrument Panel

yellowblue 2-67A. Dome Lamp SwitchB. Lamp ControlsC. Air OutletsD. Automatic Transfer Case (If Equipped)E. Multifunction LeverF. Instrument Cluste

yellowblue 1-8But don’t have a seatback reclined if your vehicle is moving.CAUTION:Sitting in a reclined position when your vehicle isin motion ca

yellowblue 2-68Instrument Panel ClusterUnited States Heavy Duty Automatic Transmission version shown, Canada,Light Duty Automatic and Manual Trans

yellowblue 2-69Speedometer and OdometerYour speedometer lets you see your speed in both milesper hour (mph) and kilometers per hour (km/h). Yourod

yellowblue 2-70Warning Lights, Gages and IndicatorsThis part describes the warning lights and gages thatmay be on your vehicle. The pictures will

yellowblue 2-71Air Bag Readiness LightThere is an air bag readiness light on the instrumentpanel, which shows the air bag symbol. The systemchecks

yellowblue 2-72CAUTION:If the right front passenger’s air bag is turned offfor a person who isn’t in a risk group identifiedby the national govern

yellowblue 2-73VoltmeterWhen your engine is notrunning, but the ignition isin RUN, this gage showsyour battery’s state ofcharge in DC volts.When t

yellowblue 2-74Brake System Warning LightWith the ignition on, the brake system warning light willflash when you set the parking brake. The light

yellowblue 2-75The anti-lock brake system warning light should comeon briefly when you turn the ignition key to RUN. If thelight doesn’t come on t

yellowblue 2-76At approximately 265 F (130 C), the message centerwill display a TRANS FLUID HOT message and thetransmission will enter a transmiss

yellowblue 2-77Malfunction Indicator Lamp (ServiceEngine Soon Light) (Gasoline Engine)Your vehicle is equippedwith a computer whichmonitors operat

yellowblue 1-9Head RestraintsSlide the head restraint up or down so that the top of therestraint is closest to the top of your ears. This position

yellowblue 2-78This light should come on, as a check to show you it isworking, when the ignition is on and the engine is notrunning. If the light

yellowblue 2-79If so, your electrical system may be wet. The conditionwill usually be corrected when the electrical systemdries out. A few driving

yellowblue 2-80CAUTION:Don’t keep driving if the oil pressure is low. If you do, your engine can become so hot that it catches fire. You or others

yellowblue 2-81Tow/Haul Light (Automatic Transmissions Only)This message is displayedwhen the tow/haul mode hasbeen activated.For more information

yellowblue 2-82Message CenterThe message center is located above the transmissiontemperature gage (if equipped) on the instrument panelcluster. It

yellowblue 2-83NOTICE:If you keep driving your vehicle with thetransmission TRANS FLUID HOT messagedisplayed, you can damage the transmission. Thi

yellowblue 2-84NOTICE:If you keep driving your vehicle with thetransmission TRANS HOT...IDLE ENGINEmessage displayed, you can damage thetransmissi

yellowblue 2-85ENGINE OVERHEATEDThis message is displayedwhen the cooling systemtemperature gets too hot.This message will be displayed after the

yellowblue 2-86CHANGE ENGINE OILThis message is displayedwhen the engine oil needs to be changed. The messageis only displayed for 15 seconds at t

yellowblue 2-87LOW WASHER FLUIDThis message is displayedwhen the vehicle is low onwindshield washer fluid.The message is onlydisplayed for 15 seco

yellowblue 1-10Easy Entry Seat (Extended Cab Only)CAUTION:If any easy entry seat isn’t locked, it can move. Ina sudden stop or crash, the person s

yellowblue 2-88✍NOTES

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

yellowblue 3-2Comfort ControlsStandard Comfort ControlsFan KnobThe knob on the left side of the heating system controlpanel controls the fan speed

yellowblue 3-3Heater and Air Conditioning ComfortControls (If Equipped)Fan KnobThe knob on the left side of the heating and airconditioning contro

yellowblue 3-4BLEND: Airflow is delivered through the heaterfloor outlets, center floor console outlets (if equipped),the windshield defroster out

yellowblue 3-5The system will automatically switch to the recirculationmode to lower the system load and improve interiorcomfort. The OUTSIDE AIR

yellowblue 3-6HeatingThe heater works best if you keep your windows closedwhile using it. On cold days, use the HEATER orVENT/HEAT setting with th

yellowblue 3-7If your vehicle is equipped with heated outside rearviewmirrors, the rear window defogger button will activatethe rear window defogg

yellowblue 3-8Ventilation TipsKeep the hood and front air inlet free of ice, snow orany other obstruction (such as leaves). The heaterand defroste

yellowblue 3-9AM-FM StereoPlaying the RadioVOLUME: This knob turns the system on and off andcontrols the volume. To increase volume and turn thera

yellowblue 1-11Rear Seat (Extended Cab)Folding the Rear SeatThe extended cab’s rear seat can be folded up to providemore cargo space. To fold the

yellowblue 3-10PUSHBUTTONS: The four numbered pushbuttons letyou return to your favorite stations. You can set up to 14 stations (seven AM and sev

yellowblue 3-11AM-FM Stereo with Cassette Tape Player(If Equipped)Playing the RadioVOLUME: This knob turns the system on and off andcontrols the v

yellowblue 3-12In addition to the four stations already set, up to threemore stations may be preset on each band by pressingtwo adjoining buttons

yellowblue 3-13FWD: Press the SEEK right arrow to advance thecassette tape. Press the SEEK left arrow to stopforwarding the tape.RECALL: Press thi

yellowblue 3-14SCV: Your system has a feature calledSpeed-Compensated Volume (SCV). With SCV, youraudio system adjusts automatically to make up fo

yellowblue 3-15P. SCAN: The preset scan button lets you scan throughyour favorite stations stored on your pushbuttons. Selecteither the AM, FM1 or

yellowblue 3-16Playing a Cassette TapeYour tape player is built to work best with tapes that areup to 30 to 45 minutes long on each side. Tapes lo

yellowblue 3-17AM-FM: Press this button to switch from a tape to the radio.TAPE AUX: Press this button to return to the tapeplayer when playing th

yellowblue 3-18AM-FM Stereo with Compact Disc Playerand Automatic Tone Control (If Equipped)Playing the RadioPWR-VOL: Press this knob to turn the

yellowblue 3-19SCAN: Press and hold SEEK for two seconds untilSCAN appears on the display. SCAN allows you tolisten to stations for a few seconds.

yellowblue 1-12Safety Belts: They’re for EveryoneThis part of the manual tells you how to use safety beltsproperly. It also tells you some things

yellowblue 3-20AUTO TONE: Press this button to select among the sixpreset equalization settings and tailor the sound to themusic or voice being he

yellowblue 3-21PREV (1): Press PREV or the SEEK left arrow tosearch for the previous selection. If you hold this buttonor press it more than once,

yellowblue 3-22Remote Compact Disc Player (If Equipped)If you have this option, you can play one compact disc(CD) at a time.To load a CD into the

yellowblue 3-23REV (4): Press and hold this button to quickly reversewithin a track. As the CD reverses, elapsed time will bedisplayed to help you

yellowblue 3-24Activating the Theft-Deterrent FeatureThe instructions which follow explain how to enter yoursecret code to activate the THEFTLOCK

yellowblue 3-25Unlocking the Theft-Deterrent Feature After aPower LossEnter your secret code as follows; pause no more than15 seconds between step

yellowblue 3-26To unlock a secured radio, see “Unlocking theTheft-Deterrent Feature After a Power Loss” earlier inthis section.Understanding Radio

yellowblue 3-27Care of Your Cassette Tape PlayerA tape player that is not cleaned regularly can causereduced sound quality, ruined cassettes or a

yellowblue 3-28If your vehicle is equipped with the AM-FM Stereo withCassette Tape Player and Automatic Tone Control:1. Turn the ignition to RUN o

yellowblue 3-29✍NOTES

yellowblue 1-13You never know if you’ll be in a crash. If you do have acrash, you don’t know if it will be a bad one.A few crashes are mild, and s

yellowblue 3-30✍NOTES

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

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

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

yellowblue 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)

yellowblue 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

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

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

yellowblue 4-8Here’s how anti-lock works. Let’s say the road is wet.You’re driving safely. Suddenly an animal jumps out infront of you.You slam on

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

yellowblue iiGENERAL MOTORS, GM, the GM Emblem, GMC,the GMC Emblem and the name SIERRA are registeredtrademarks of General Motors Corporation.This

yellowblue 1-14Put someone on it. Get it up to speed. Then stop the vehicle. The riderdoesn’t stop.

yellowblue 4-10Speed limit signs near curves warn that you shouldadjust your speed. Of course, the posted speeds arebased on good weather and road

yellowblue 4-11Off-Road RecoveryYou may find that your right wheels have dropped off theedge of a road onto the shoulder while you’re driving.If t

yellowblue 4-12Do not get too close to the vehicle you want to passwhile you’re awaiting an opportunity. For one thing,following too closely reduc

yellowblue 4-13Loss of ControlLet’s review what driving experts say about whathappens when the three control systems (brakes, steeringand accelera

yellowblue 4-14Off-Road Driving with YourFour-Wheel-Drive VehicleThis off-road guide is for vehicles that have four-wheel drive.Also, see “Anti-Lo

yellowblue 4-15The following steps must be performed on each of thepush-pins to remove the air dam:1. Insert the bladeportion of aflat-bladescrewd

yellowblue 4-16To replace the lower air dam:1. Line up each push-pinwith it’s intendedretainer and push thewasher portion of thepush-pin towards t

yellowblue 4-17Before You Go Off-RoadingThere are some things to do before you go out. Forexample, be sure to have all necessary maintenance and s

yellowblue 4-18Environmental ConcernsOff-road driving can provide wholesome and satisfyingrecreation. However, it also raises environmentalconcern

yellowblue 4-19Getting 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 w

yellowblue 1-15The person keeps going until stopped by something.In a real vehicle, it could be the windshield ...or the instrument panel ...

yellowblue 4-20Scanning the TerrainOff-road driving can take you over many different kindsof terrain. You need to be familiar with the terrain and

yellowblue 4-21Driving on Off-Road HillsOff-road driving often takes you up, down or across ahill. Driving safely on hills requires good judgment

yellowblue 4-22Driving UphillOnce you decide you can safely drive up the hill, youneed to take some special steps.Use a low gear and get a firm gr

yellowblue 4-23Q: 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 t

yellowblue 4-24Q: Suppose, after stalling, I try to back down thehill and decide I just can’t do it. What should I do?A: Set the parking brake, pu

yellowblue 4-25Driving DownhillWhen off-roading takes you downhill, you’ll want toconsider a number of things:How steep is the downhill? Will I be

yellowblue 4-26Q: Am I likely to stall when going downhill? A: It’s much more likely to happen going uphill. But ifit happens going downhill, here

yellowblue 4-27Hidden obstacles can make the steepness of theincline even worse. If you drive across a rock withthe uphill wheels, or if the downh

yellowblue 4-28Stalling on an InclineIf your vehicle stalls when you’re crossing an incline, besure you (and your passengers) get out on the uphil

yellowblue 4-29Hard packed snow and ice offer the worst tire traction.On these surfaces, it’s very easy to lose control. On wetice, for example, t

yellowblue 1-16or the safety belts!With safety belts, you slow down as the vehicle does.You get more time to stop. You stop over more distance,and

yellowblue 4-30After Off-Road DrivingRemove any brush or debris that has collected on theunderbody, chassis or under the hood. Theseaccumulations

yellowblue 4-31Here are some tips on night driving.Drive defensively.Don’t drink and drive.Adjust your inside rearview mirror to reduce theglare f

yellowblue 4-32Driving in Rain and on Wet RoadsRain and wet roads can mean driving trouble. On a wetroad, you can’t stop, accelerate or turn as we

yellowblue 4-33Driving too fast through large water puddles or evengoing through some car washes can cause problems, too.The water may affect your

yellowblue 4-34HydroplaningHydroplaning is dangerous. So much water can build upunder your tires that they can actually ride on the water.This can

yellowblue 4-35City DrivingOne of the biggest problems with city streets is theamount of traffic on them. You’ll want to watch out forwhat the oth

yellowblue 4-36Freeway DrivingMile for mile, freeways (also called thruways, parkways,expressways, turnpikes or superhighways) are the safestof al

yellowblue 4-37The exit speed is usually posted.Reduce your speed according to your speedometer, notto your sense of motion. After driving for any

yellowblue 4-38Highway HypnosisIs there actually such a condition as “highway hypnosis”?Or is it just plain falling asleep at the wheel? Call ithi

yellowblue 4-39Keep your vehicle in good shape. Check all fluidlevels and also the brakes, tires, cooling system andtransmission. These parts can

yellowblue 1-17Q: If I’m a good driver, and I never drive far fromhome, why should I wear safety belts?A: You may be an excellent driver, but if y

yellowblue 4-40Winter DrivingHere are some tips for winter driving:Have your vehicle in good shape for winter.You may want to put winter emergency

yellowblue 4-41What’s the worst time for this? “Wet ice.” Very coldsnow or ice can be slick and hard to drive on. But wetice can be even more trou

yellowblue 4-42If You’re Caught in a BlizzardIf you are stopped by heavy snow, you could be in aserious situation. You should probably stay with y

yellowblue 4-43CAUTION:Snow can trap exhaust gases under your vehicle.This can cause deadly CO (carbon monoxide) gasto get inside. CO could overco

yellowblue 4-44Recreational Vehicle TowingThere may be times when you want to tow your vehiclebehind another vehicle for use at your destination.

yellowblue 4-45Four-Wheel-Drive VehiclesCAUTION:Shifting the transfer case into NEUTRAL (N) cancause your vehicle to roll even if the transmission

yellowblue 4-46Loading Your VehicleThe Certification/Tire label is found on the rear edge ofthe driver’s door.The label shows the size of your ori

yellowblue 4-47NOTICE:Some vehicles may be equipped with RPO VYU(snow plow prep package). With this option, thepayload your vehicle can carry is r

yellowblue 4-48Your warranty does not cover parts or components thatfail because of overloading.This will help you decide how much cargo and insta

yellowblue 4-49Front Axle Reserve CapacityThis is the difference between your front GAWR and thefront axle weight of your truck with full fuel and

yellowblue 1-18Driver PositionThis part describes the driver’s restraint system.Lap-Shoulder BeltThe driver has a lap-shoulder belt. Here’s how to

yellowblue 4-50For example, adding a 700 lb. ( 318 kg) snow plow adds more than 700 lb. ( 318 kg) to the front axle. Using the formula, if the sno

yellowblue 4-51The Cargo Weight Rating (CWR) is the maximumweight of the load your vehicle can carry. It doesn’tinclude the weight of the people i

yellowblue 4-52Your dealer can help you make a good vehicle-campermatch. He’ll also help you determine your CWR.After you’ve loaded your vehicle a

yellowblue 4-53Pickup Conversion to Chassis CabGeneral Motors is aware that some vehicle owners mayconsider having the pickup box removed and acom

yellowblue 4-54Your vehicle can tow a trailer. If yours was built withtrailering options, as many are, it’s ready for heaviertrailers. But trailer

yellowblue 4-55Tow/Haul Mode (If Equipped)Tow/haul is a feature on automatic transmissionequipped vehicles that assists when pulling a heavytraile

yellowblue 4-56Weight of the TrailerHow heavy can a trailer safely be?It depends on how you plan to use your rig. For example,speed, altitude, roa

yellowblue 4-57K-1500 (4WD)*Engine (Trans.) AxleRatioMax. Trailer Wt.4300 V6 (Auto) 3.42 4,000 lbs. (1 814 kg)3.73 4,500 lbs. (2 041 kg)4300 V6 (M

yellowblue 4-58C-2500 HD (2WD)*Engine AxleRatioMax. Trailer Wt.6000 V8 3.42 7,500 lbs. (3 402 kg)3.73 8,500 lbs. (3 856 kg)4.10 10,500 lbs. (4 763

yellowblue 4-59Weight of the Trailer TongueThe tongue load (A) of any trailer is an importantweight to measure because it affects the total or gro

yellowblue 1-194. 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 lon

yellowblue 4-60HitchesIt’s important to have the correct hitch equipment.Crosswinds, large trucks going by and rough roads are afew reasons why yo

yellowblue 4-61Driving with a TrailerTowing a trailer requires a certain amount of experience.Before setting out for the open road, you’ll want to

yellowblue 4-62Making TurnsNOTICE:Making very sharp turns while trailering couldcause the trailer to come in contact with thevehicle. Your vehicle

yellowblue 4-63When towing at high altitude on steep uphill grades,consider the following: Engine coolant will boil at alower temperature than at

yellowblue 4-64CAUTION:It can be dangerous to get out of your vehicle ifthe shift lever is not fully in PARK (P) with theparking brake firmly set.

yellowblue 4-65Trailer Wiring HarnessYour vehicle is equipped with one of the followingwiring harnesses for towing a trailer or hauling aslide-in

yellowblue 4-66Basic Trailer Wiring Package (Diesel Engine)Regular and extended cab pickups equipped with a 6.5L Turbo Diesel engine have an eight

yellowblue 4-67Heavy-Duty Trailer Wiring Package (If Equipped)Your pickup may be equipped with the eight-wire trailertowing harness. This harness

yellowblue 4-68Camper/Fifth-Wheel Trailer Wiring Package (If Equipped)The eight-wire camper harness is located under the frontedge of the pickup b

yellowblue 4-69Instrument Panel Jumper Wiring HarnessThis harness is included with the heavy-duty andcamper/fifth-wheel trailer wiring packages. T

yellowblue 1-20Q: 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 ser

yellowblue 4-70NOTICE:When using the auxiliary battery provision, theelectrical load must not exceed 30 amps. Alwaysturn off any electrical equipm

5-yellowblue 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 Flashe

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

yellowblue 5-3Other Warning DevicesIf you carry reflective triangles, you can use them towarn others. Set one up at the side of the road about 300

yellowblue 5-42. Get the vehicles close enough so the jumper cablescan reach, but be sure the vehicles aren’t touchingeach other. If they are, it

yellowblue 5-5CAUTION:Using a match near a battery can cause batterygas to explode. People have been hurt doing this,and some have been blinded. U

yellowblue 5-66. Connect the red positive (+) cable to thepositive (+) terminal ofthe vehicle with the deadbattery. Use a remotepositive (+) termi

yellowblue 5-7V8 Engine V6 Engine9. When connecting thecable, be sure it is notnear any engine partsthat will move.Diesel Engine10. Now start the

yellowblue 5-8Towing Your VehicleCAUTION:To help avoid serious personal injury to you or others:Never let passengers ride in a vehicle that isbein

yellowblue 5-9Engine Overheating (Gasoline Engine)You will find a coolant temperature gage on yourvehicle’s instrument panel. See “Engine CoolantT

yellowblue 1-21Q: 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

yellowblue 5-10If Steam Is Coming From Your EngineCAUTION:Steam from an overheated engine can burn youbadly, even if you just open the hood. Stay

yellowblue 5-11NOTICE:If your engine catches fire because you keepdriving with no coolant, your vehicle can bebadly damaged. The costly repairs wo

yellowblue 5-12Cooling System (Gasoline Engine)When you decide it’s safe to lift the hood, here’s whatyou’ll see:A. Coolant Surge TankB. Coolant S

yellowblue 5-13CAUTION:Heater and radiator hoses, and other engineparts, can be very hot. Don’t touch them. If youdo, you can be burned.Don’t run

yellowblue 5-14How to Add Coolant to the Coolant SurgeTank -- Gasoline EnginesIf you haven’t found a problem yet, but the coolant levelisn’t at or

yellowblue 5-15CAUTION:Adding only plain water to your cooling systemcan be dangerous. Plain water, or some otherliquid like alcohol, can boil bef

yellowblue 5-161. You can remove the coolant surge tank pressure capwhen the cooling system, including the coolant surgetank pressure cap and uppe

yellowblue 5-174. With the coolant surge tank pressure cap off, start theengine and let it run until you can feel the upperradiator hose getting h

yellowblue 5-18Engine Fan NoiseYour vehicle has a clutched engine cooling fan. Whenthe clutch is engaged, the fan spins faster to providemore air

yellowblue 5-19CAUTION:Changing a tire can cause an injury. The vehiclecan slip off the jack and roll over you or otherpeople. You and they could

yellowblue 1-22Q: 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 c

yellowblue 5-20Removing the Spare Tire and ToolsRegular CabExtended CabThe equipment you’ll need is behind the passenger’s seat.1. If there is a c

yellowblue 5-21You’ll use the jack handle and the wheel wrench toremove the underbody-mounted spare tire.A. Hoist AssemblyB. Wheel WrenchC. Extens

yellowblue 5-22The tools you’ll be using include the bottle jack (A), thewheel blocks (B), the jack handle (C), the jack handleextensions (D), and

yellowblue 5-23Turn the wheel wrench clockwise to raise the jack lifthead a little.If your vehicle has wheelnut caps, loosen them byturning the wh

yellowblue 5-24Removing the Flat Tire and Installing the Spare Tire1. Use the wheel wrench to loosen all the wheel nuts. Turn the wheel wrenchcoun

yellowblue 5-25CAUTION:Getting under a vehicle when it is jacked up isdangerous. If the vehicle slips off the jack, youcould be badly injured or k

yellowblue 5-26Front Position All Other ModelsRear Position3. Make sure the jack head is positioned so that the rearaxle is resting securely betwe

yellowblue 5-274. Remove all the wheelnuts and take off the flat tire.5. Remove any rust or dirtfrom the wheel bolts,mounting surfaces andspare wh

yellowblue 5-286. After mounting thespare, replace the wheelnuts with the roundedend of the nuts towardthe wheel. Tighten eachwheel nut by hand us

yellowblue 5-29Front Position All Other Models Rear Position7. Turn the wheel wrench counterclockwise to lowerthe vehicle. Lower the jack complete

yellowblue 1-23Q: 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,

yellowblue 5-308. Tighten the nuts firmly in a crisscross sequence asshown by turning the wheel wrench clockwise.CAUTION:Incorrect wheel nuts or i

yellowblue 5-31Storing a Flat or Spare Tire and ToolsCAUTION:Storing a jack, a tire or other equipment in thepassenger compartment of the vehicle

yellowblue 5-32A. Hoist AssemblyB. Wheel WrenchC. ExtensionsD. Hoist ShaftE. Valve Stem, Pointed DownF. Flat or Spare TireG. RetainerH. Hoist Cabl

yellowblue 5-33If You’re Stuck: In Sand, Mud, Ice or SnowIn order to free your vehicle when it is stuck, you willneed to spin the wheels, but you

yellowblue 5-34Using the Recovery HooksYour vehicle may be equipped with recovery hooks. Therecovery hooks are provided at the front of your vehic

yellowblue 5-35CAUTION:The recovery hooks, when used, are under a lot offorce. Always pull the vehicle straight out. Neverpull on the hooks at a s

yellowblue 5-36✍NOTES

yellowblue 5-37✍NOTES

yellowblue 5-38✍NOTES

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

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

yellowblue 1-24To 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 t

yellowblue 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 ne

yellowblue 6-3CAUTION:You can be injured and your vehicle could bedamaged if you try to do service work on avehicle without knowing enough about i

yellowblue 6-4If you’re using fuel rated at 87 octane or higher and youhear heavy knocking, your engine needs service. Butdon’t worry if you hear

yellowblue 6-5NOTICE:Your vehicle was not designed for fuel thatcontains methanol. Don’t use it. It can corrodemetal parts in your fuel system and

yellowblue 6-6Filling Your Tank (Gasoline Engine)If your vehicle has a diesel engine, see “Filling YourTank (Diesel Engine)” in the Diesel Engine

yellowblue 6-7To remove the cap, turn it slowly to the left(counterclockwise).CAUTION:If you get gasoline on yourself and thensomething ignites it

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

yellowblue 6-9Hood ReleaseTo open the hood, first pull the handle inside the vehicle.Then go to the front of the vehicle and pull up on theseconda

yellowblue 6-10VORTEC 4300 V6 EngineWhen you lift up the hood you’ll see:A. Air CleanerB. Coolant Surge TankC. Air Filter Restriction IndicatorD.

yellowblue 6-11VORTEC 4800, 5300 and 6000 V8 EngineVORTEC 5300 V8 engine shown, locations for other engines similar.A. Air CleanerB. Coolant Surge

yellowblue 1-25The best way to protect the fetus is to protect themother. When a safety belt is worn properly, it’s morelikely that the fetus won’

yellowblue 6-12Engine Oil (Gasoline Engine)If your vehicle has a diesel engine, see “Engine Oil(Diesel Engine)” in the Diesel Engine Supplement.If

yellowblue 6-13Checking Engine OilPull out the dipstick and clean it with a paper towel orcloth, then push it back in all the way. Remove it again

yellowblue 6-14What Kind of Engine Oil to UseOils recommended for your vehicle can be identified bylooking for the “Starburst” symbol. This symbol

yellowblue 6-15As shown in the chart, SAE 5W-30 is best for yourvehicle. However, you can use SAE 10W-30 if it’s goingto be 0 F (-18 C) or above.

yellowblue 6-16How to Reset the CHANGE ENGINE OIL MessageTo reset the CHANGE ENGINE OIL message, turn theignition key to RUN with the engine off.

yellowblue 6-17Your air cleaner is located in the passenger’s side frontcorner of the engine compartment.1. To remove the air filter, loosen the s

yellowblue 6-18CAUTION:Operating the engine with the air cleaner/filteroff can cause you or others to be burned. The aircleaner not only cleans th

yellowblue 6-193. Remove the air filter by pulling downward on theelement. Remove the second portion of the air filterby sliding it towards the re

yellowblue 6-20Wait at least 30 minutes before checking thetransmission fluid level if you have been driving:When outside temperatures are above 9

yellowblue 6-21Then, without shutting off the engine, follow these steps:1. The red transmission dipstick handle is located at therear of the engi

yellowblue 1-26CAUTION:Air bags inflate with great force, faster than theblink of an eye. If you’re too close to an inflatingair bag, as you would

yellowblue 6-22How to Add FluidRefer to the Maintenance Schedule to determine whatkind of transmission fluid to use. See “RecommendedFluids and Lu

yellowblue 6-23How to CheckBecause this operation can be a little difficult, you maychoose to have this done at your GM dealership ServiceDepartme

yellowblue 6-24How to Add FluidHere’s how to add fluid. Refer to the MaintenanceSchedule to determine what kind of fluid to use. See“Recommended F

yellowblue 6-25Rear AxleWhen to Check LubricantRefer to the Maintenance Schedule to determine howoften to check the lubricant. See “ScheduledMaint

yellowblue 6-26Transfer CaseWhen to Check LubricantRefer to the Maintenance Schedule to determine howoften to check the lubricant. See “Periodic M

yellowblue 6-27Front AxleWhen to Check LubricantRefer to the Maintenance Schedule to determine howoften to check the lubricant. See “ScheduledMain

yellowblue 6-28Coolant Surge Tank Pressure Cap(Gasoline Engine)The coolant surge tank pressure cap must be fullyinstalled on the coolant surge tan

yellowblue 6-29Engine CoolantThe cooling system in your vehicle is filled withDEX-COOL engine coolant. This coolant is designedto remain in your

yellowblue 6-30What to UseUse a mixture of one-half clean, drinkable water andone-half DEX-COOL coolant which won’t damagealuminum parts. If you

yellowblue 6-31Checking Coolant (Gasoline Engine)The coolant surge tank is located on the passenger’s side of theengine compartment.If your vehicl

yellowblue 1-27There is an air bag readinesslight on the instrumentpanel, which shows the airbag symbol.The system checks the air bag electrical s

yellowblue 6-32Power Steering FluidWhen to Check Power Steering FluidIt is not necessary to regularly check power steeringfluid unless you suspect

yellowblue 6-33Windshield Washer FluidWhat to UseWhen you need windshield washer fluid, be sure to readthe manufacturer’s instructions before use.

yellowblue 6-34BrakesBrake FluidYour brake master cylinderreservoir is here. It is filledwith DOT-3 brake fluid.There are only two reasons why the

yellowblue 6-35Checking Brake FluidYou can check the brake fluid without taking off the cap.Just look at the brake fluid reservoir. The fluid leve

yellowblue 6-36NOTICE:Using the wrong fluid can badly damagebrake system parts. For example, just a fewdrops of mineral-based oil, such as engineo

yellowblue 6-37Some driving conditions or climates may cause a brakesqueal when the brakes are first applied or lightlyapplied. This does not mean

yellowblue 6-38Vehicle StorageIf you’re not going to drive your vehicle for 25 days or more, remove the black, negative (-) cable from the battery

yellowblue 6-39Headlamps1. Remove the two pins on the top of the headlampassembly. To remove the pins, turn the outer pinoutward and pull it strai

yellowblue 6-40Front Turn Signal, Sidemarker andDaytime Running LampsA. Sidemarker LampB. Retainer ClipC. Front Turn Signal LampD. Daytime Running

yellowblue 6-41Center High-Mounted Stoplamp (CHMSL)and Cargo Lamp1. Remove the screws and lift off the lamp assembly.A. Cargo LampB. Center High-M

yellowblue 1-28The right front passenger’s air bag is in the instrumentpanel on the passenger’s side.CAUTION:If something is between an occupant a

yellowblue 6-424. If a CHMSL bulb is replaced, put the bulb into thesocket and press it in until it is tight.5. If a cargo lamp is replaced, put a

yellowblue 6-43A. StoplampB. Turn Signal LampC. Back-up Lamp3. Press the release tab and turn the bulb socket counterclockwise to remove it from t

yellowblue 6-44Taillamps (Chassis Cab Models)A. Turn Signal LampB. StoplampC. Back-up Lamp1. Using your hands, peel the rubber seal away fromthe l

yellowblue 6-45To replace the windshield wiper blade assembly:1. Lift the wiper arm and rotate the blade until it isfacing away from the windshiel

yellowblue 6-46Inflation -- Tire PressureThe Certification/Tire label, which is on the rear edge ofthe driver’s door, shows the correct inflation

yellowblue 6-47Tire Inspection and RotationTires should be rotated every 6,000 to 8,000 miles(10 000 to 13 000 km). Any time you notice unusualwea

yellowblue 6-48When It’s Time for New TiresOne way to tell when it’stime for new tires is tocheck the treadwearindicators, which willappear when y

yellowblue 6-49Buying New TiresTo find out what kind and size of tires you need, look atthe Certification/Tire label.The tires installed on your v

yellowblue 6-50Uniform Tire Quality GradingThe following information relates to the systemdeveloped by the United States National HighwayTraffic S

yellowblue 6-51Temperature -- A, B, CThe temperature grades are A (the highest), B, and C,representing the tire’s resistance to the generation ofh

yellowblue 1-29In any particular crash, no one can say whether an airbag should have inflated simply because of the damageto a vehicle or because

yellowblue 6-52Your dealer will know the kind of wheel you need.Each new wheel should have the same load-carryingcapacity, diameter, width, offset

yellowblue 6-53Tire ChainsNOTICE:If your vehicle has P265/75R16 or LT265/75R16size tires, don’t use tire chains. They can damage your vehicle beca

yellowblue 6-54Appearance CareRemember, cleaning products can be hazardous. Someare toxic. Others can burst into flame if you strike amatch or get

yellowblue 6-55Use a clean cloth or sponge, and change to a clean area often. A soft brush may be used if stains are stubborn.If a ring forms on f

yellowblue 6-56Fabric ProtectionYour vehicle has upholstery and carpet fabric that hasbeen treated with Scotchgard Fabric Protector, a 3Mproduct.

yellowblue 6-57Care of Safety BeltsKeep belts clean and dry.CAUTION:Do not bleach or dye safety belts. If you do, itmay severely weaken them. In a

yellowblue 6-58Cleaning the Outside of Your VehicleThe paint finish on your vehicle provides beauty, depthof color, gloss retention and durability

yellowblue 6-59Foreign materials such as calcium chloride and othersalts, ice melting agents, road oil and tar, tree sap, birddroppings, chemicals

yellowblue 6-60Cleaning TiresTo clean your tires, use a stiff brush with a tire cleaner.NOTICE:When applying a tire dressing always take care towi

yellowblue 6-61Underbody MaintenanceChemicals used for ice and snow removal and dustcontrol can collect on the underbody. If these are notremoved,

yellowblue 1-30CAUTION:When an air bag inflates, there is dust in the air.This dust could cause breathing problems forpeople with a history of ast

yellowblue 6-62GM Vehicle Care/Appearance MaterialsPART NUMBER SIZE DESCRIPTION USAGE994954 23 in. x 25 in. Polishing Cloth – Wax Treated Exterior

yellowblue 6-63Vehicle Identification Number (VIN)This is the legal identifier for your vehicle. It appears ona plate in the front corner of the i

yellowblue 6-64Electrical SystemAdd-On Electrical EquipmentNOTICE:Don’t add anything electrical to your vehicleunless you check with your dealer f

yellowblue 6-65Fuses and Circuit BreakersThe wiring circuits in your vehicle are protected fromshort circuits by a combination of fuses, circuit b

yellowblue 6-66NAME UsageL BODY Retained Accessory Power RelayLOCK Power Door LocksDRV UNLOCK Power Door Lock RelayNAME UsageLOCK Power Door Lock

yellowblue 6-67NAME UsageTURN Exterior Lamps, Turn Signals,Hazard LampsUNLOCK Power Door LocksHTR A/C Climate Control SystemWS WPR Windshield Wipe

yellowblue 6-68Center Instrument Panel Utility BlockThe center instrument panel utility block is locatedunderneath the instrument panel, to the le

yellowblue 6-69Underhood Electrical Center The underhood electrical center is located on thedriver’s side of the engine compartment near the batte

yellowblue 6-70

yellowblue 6-71Name UsageSTUD #1 Accessory Power/Trailer WiringFeedABS Anti-Lock BrakesIGN A Ignition SwitchAIR A.I.R. SystemRAP #1 Retained Acces

yellowblue 1-31If your vehicle ever gets into a lot of water -- such aswater up to the carpeting or higher -- or if water entersyour vehicle and s

yellowblue 6-72Name UsageTRL PRK Parking Lamps Trailer WiringRT HDLP Right HeadlampsDRL Daytime Running Lamps (Relay)HTD MIR Heated MirrorsLT HDLP

yellowblue 6-73Replacement Bulbs*Quantity NumberLow-Beam Headlamps2 9006High-Beam Headlamps2 9005Daytime Running Lamps (DRL)2 3157KXFront Marker L

yellowblue 6-74Capacities and SpecificationsPlease refer to “Recommended Fluids and Lubricants” in the Index for more information.Engine Type VIN

yellowblue 6-75Cooling System Capacity (Approximate)After refill, the level must be rechecked. See “CoolingSystem” in the Index.Engine Transmissio

yellowblue 6-76Crankcase Capacity (Approximate)After refill, the level must be rechecked. Add enoughengine oil so that the fluid is within the pro

yellowblue 6-77Normal Maintenance Replacement PartsReplacement part numbers listed in this section are based on the latest information available a

yellowblue 6-78✍NOTES

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

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

yellowblue 7-3How This Section is OrganizedThis maintenance schedule is divided into five parts:“Part A: Scheduled Maintenance Services” showswhat

yellowblue 1-32This switch should only be turned to AIR BAG OFF ifthe person in the right front passenger’s position is amember of a passenger ris

yellowblue 7-4Part A: Scheduled MaintenanceServicesUsing Your Maintenance ScheduleWe at General Motors want to help you keep yourvehicle in good w

yellowblue Scheduled Maintenance -- Gasoline Engines7-5The services shown in this schedule up to 100,000 miles(166 000 km) should be performed aft

Scheduled Maintenance -- Gasoline Enginesyellowblue 7-6* Your vehicle has an Engine Oil Life Monitor. Thismonitor will show you when to change the

yellowblue Scheduled Maintenance -- Gasoline Engines7-77,500 Miles (12 500 km)Check Oil Life Monitor. If engine oil and filter are changed, reset

Scheduled Maintenance -- Gasoline Enginesyellowblue 7-822,500 Miles (37 500 km)Check Oil Life Monitor. If engine oil and filter are changed, reset

yellowblue Scheduled Maintenance -- Gasoline Engines7-9Rotate tires. See “Tire Inspection and Rotation” in the Index for properrotation pattern an

Scheduled Maintenance -- Gasoline Enginesyellowblue 7-1045,000 Miles (75 000 km) (Continued)Lubricate chassis components (or at each engine oil an

yellowblue Scheduled Maintenance -- Gasoline Engines7-1152,500 Miles (87 500 km)Check Oil Life Monitor. If engine oil and filter are changed, rese

Scheduled Maintenance -- Gasoline Enginesyellowblue 7-1260,000 Miles (100 000 km) (Continued)Rotate tires. See “Tire Inspection and Rotation” in t

yellowblue Scheduled Maintenance -- Gasoline Engines7-13Lubricate chassis components (or at each engine oil and filter change). (See footnote #.)C

yellowblue 1-33To turn off the right front passenger’s air bag, insertyour ignition key into the switch, push in, and move theswitch to AIR BAG OF

Scheduled Maintenance -- Gasoline Enginesyellowblue 7-1482,500 Miles (137 500 km)Check Oil Life Monitor. If engine oil and filter are changed, res

yellowblue Scheduled Maintenance -- Gasoline Engines7-15Replace fuel filter. An Emission Control Service. (See footnote .)Rotate tires. See “Tire

Scheduled Maintenance -- Gasoline Enginesyellowblue 7-16100,000 Miles (166 000 km) (Continued)Change automatic transmission fluid and filter if th

yellowblue Scheduled Maintenance -- Gasoline Engines7-17150,000 Miles (240 000 km)Drain, flush and refill cooling system (or every 60 months since

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

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

yellowblue 7-20Manual Transmission CheckCheck the transmission fluid level; add if needed. See “Manual Transmission Fluid” in the Index. Checkfor

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

yellowblue 7-22Ignition Transmission Lock CheckWhile parked, and with the parking brake set, try to turnthe ignition key to LOCK in each shift lev

yellowblue 7-23Part C: Periodic MaintenanceInspectionsListed in this part are inspections and services whichshould be performed at least twice a y

yellowblue ivYou will also find a circlewith a slash through it inthis book. This safetysymbol means “Don’t,”“Don’t do this” or “Don’tlet this hap

yellowblue 1-34To turn the right front passenger’s air bag on again,insert your ignition key into the switch, push in, andmove the switch to the O

yellowblue 7-24Throttle System InspectionInspect the throttle system for interference or binding,and for damaged or missing parts. Replace parts a

yellowblue 7-25Part D: Recommended Fluids and LubricantsNOTE: Fluids and lubricants identified below by name, part number or specification may be

yellowblue 7-26USAGE FLUID/LUBRICANTKey LockCylindersMulti-Purpose Lubricant,Superlube (GM Part No. 12346241 or equivalent).Floor ShiftLinkageLubr

yellowblue 7-27USAGE FLUID/LUBRICANTRear DrivelineCenter SplinesChassis Lubricant (GM Part No. 12377985 or equivalent) orlubricant meeting require

yellowblue 7-28Part E: Maintenance RecordAfter the scheduled services are performed, record thedate, odometer reading and who performed the servic

yellowblue 7-29Maintenance RecordDATEODOMETERREADINGSERVICED BY MAINTENANCE PERFORMED

yellowblue 7-30Maintenance RecordDATEODOMETERREADINGSERVICED BY MAINTENANCE PERFORMED

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

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

yellowblue 8-3STEP TWO -- If after contacting a member of dealership management, it appears your concern cannot beresolved by the dealership witho

yellowblue 1-35Adding Equipment to Your AirBag-Equipped VehicleQ: If I add a push bumper or a bicycle rack to thefront of my vehicle, will it keep

yellowblue 8-4The BBB Auto Line Program is an out of court programadministered by the Council of Better Business Bureaus tosettle automotive dispu

yellowblue 8-5CanadaGeneral Motors of Canada LimitedCustomer Communication Centre, 163-0051908 Colonel Sam DriveOshawa, Ontario L1H 8P71-800-263-3

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

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

yellowblue 8-8Courtesy TransportationGMC has always exemplified quality and value in itsoffering of motor vehicles. To enhance your ownershipexper

yellowblue 8-9Courtesy Rental VehicleWhen your vehicle is unavailable due to overnightwarranty repairs, your dealer may arrange to provideyou with

yellowblue 8-10REPORTING SAFETY DEFECTSTO THE UNITED STATESGOVERNMENTIf you believe that your vehicle has a defect which couldcause a crash or cou

yellowblue 8-11REPORTING SAFETY DEFECTSTO GENERAL MOTORSIn addition to notifying NHTSA (or Transport Canada)in a situation like this, we certainly

yellowblue 8-12CURRENT PUBLICATIONS FOR 1999 GMCSERVICE MANUALSService Manuals have the diagnosis and repair informationon engines, transmission,

yellowblue 8-13PUBLICATION FORMNUMBEROrders will be mailed within 10 days of receipt. Please allow adequate time for postalservice. If further inf

yellowblue 1-36Center Passenger PositionLap BeltIf your vehicle has front and rear bench seats, someonecan sit in the center positions.When you si

yellowblue 8-14✍NOTES

9-yellowblue 9-1Section 9 IndexAccessory Power Outlet 2-65. . . . . . . . . . . . . . . . . . . . . . . . . Adding Equipment to the Outside of You

yellowblue 9-2Before Leaving on a Long Trip 4-37. . . . . . . . . . . . . . . . . . . . Better Business Bureau Mediation 8-3. . . . . . . . . . .

yellowblue 9-3Inside of Your Vehicle 6-54. . . . . . . . . . . . . . . . . . . . . . . . . Instrument Panel 6-56. . . . . . . . . . . . . . . . .

yellowblue 9-4Driving (Continued)Through Water 4-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wet Roads 4-32. . . . . . . . . .

yellowblue 9-5Fuel 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Filling a Portable Container 6-8. . . .

yellowblue 9-6Inspections (Continued)Steering 7-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suspension 7-23. . . . .

yellowblue 9-7Maintenance, Normal Replacement Parts 6-77. . . . . . . . . . . Maintenance Record 7-28. . . . . . . . . . . . . . . . . . . . . . .

yellowblue 9-8Overheated Engine Protection 5-9. . . . . . . . . . . . . . . . . . . . . . Overheating Engine 5-9. . . . . . . . . . . . . . . . .

yellowblue 9-9Reserve Capacity, Front Axle 4-49. . . . . . . . . . . . . . . . . . . . . Reserve Capacity, Total Vehicle 4-49. . . . . . . . . . .

yellowblue 1-37To make the belt shorter, pull its free end as shown untilthe belt is snug.Buckle, position and release it the same way as the lapp

yellowblue 9-10Servicing Your Air Bag-Equipped Vehicle 1-34. . . . . . . . . . . Sheet Metal Damage 6-60. . . . . . . . . . . . . . . . . . . . .

yellowblue 9-11Treadwear 6-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Uniform Quality Grading 6-50. . . . . . . . . .

yellowblue 9-12Warning Devices 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warning Lights, Gages and Indicators 2-70. . . . .

yellowblue 1-38Rear Seat Outside Passenger Positions(Extended Cab)Lap-Shoulder Belt (Extended Cab)The positions next to the windows have lap-shoul

yellowblue 1-392. Push the latch plate into the buckle until it clicks.Pull up on the latch plate to make sure it is secure.When the shoulder belt

yellowblue 1-40The lap part of the belt should be worn low and snug onthe hips, just touching the thighs. In a crash, this appliesforce to the str

yellowblue 1-41To unlatch the belt, just push the button on the buckle.Rear Safety Belt Comfort Guides forChildren and Small AdultsIf your vehicle

yellowblue 1-422. 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 tw

yellowblue 1-434. Buckle, position and release the safety belt asdescribed in “Rear Seat Outside Passenger Positions(Extended Cab)” earlier in thi

yellowblue vFor example,these symbolsare used on anoriginal battery:CAUTIONPOSSIBLEINJURYPROTECTEYES BYSHIELDINGCAUSTICBATTERYACID COULDCAUSEBURNS

yellowblue 1-44CAUTION:Smaller children and babies should always berestrained in a child or infant restraint. Theinstructions for the restraint wi

yellowblue 1-45CAUTION:Never hold a baby in your arms while riding in avehicle. A baby doesn’t weigh much -- until acrash. During a crash a baby w

yellowblue 1-46Child RestraintsEvery time infants and young children ride in vehicles, they should have protection provided byappropriate restrain

yellowblue 1-47A rear-facing infant restraint (B) positions an infantto face the rear of the vehicle. Rear-facing infantrestraints are designed fo

yellowblue 1-48A forward-facing child restraint (C-E) positions achild upright to face forward in the vehicle. Theseforward-facing restraints are

yellowblue 1-49A booster seat (F, G) is designed for children whoare about 40 to 60 lbs., or even up to 80 lbs. (18 to 27 kg, or even up to 36 kg)

yellowblue 1-50When choosing a child restraint, be sure the childrestraint is designed to be used in a vehicle. If it is, itwill have a label sayi

yellowblue 1-51Where to Put the Restraint (Extended Cab Pickup)Accident statistics show that children are safer if theyare restrained in the rear

yellowblue 1-52Top StrapCanadian law requires that child restraints have a topstrap, and that the strap be anchored.If your child restraint has a

yellowblue 1-53If you need to have an anchor bracket installed for a rearseat position in an extended cab, your dealer can get aspecial kit with a

yellowblue viModel ReferenceThis manual covers these models:Regular Cab PickupExtended Cab PickupChassis Cab

yellowblue 1-54Securing a Child Restraint in a RearOutside Seat Position (Extended Cab)There is limited space in the rear seating area of anextend

yellowblue 1-554. Pull the rest of the shoulder belt all the way out ofthe retractor to set the lock.5. To tighten the belt, feed the shoulder bel

yellowblue 1-56Securing a Child Restraint in the CenterFront Seat PositionDon’t use child restraints in this position. The restraintswon’t work pr

yellowblue 1-57You’ll be using the lap belt. Be sure to follow theinstructions that came with the child restraint. Secure thechild in the child re

yellowblue 1-586. Push and pull the child restraint in differentdirections to be sure it is secure.To remove the child restraint, just unbuckle th

yellowblue 1-59CAUTION:A child in a rear-facing child restraint can beseriously injured or killed if the right frontpassenger’s air bag inflates,

yellowblue 1-60CAUTION: (Continued)If your vehicle is an extended cab pickup and thisever happens, don’t let anyone whom thenational government ha

yellowblue 1-614. Buckle the belt. Make sure the release button ispositioned so you would be able to unbuckle thesafety belt quickly if you ever h

yellowblue 1-626. To tighten the belt, feed the shoulder belt back into theretractor while you push down on the child restraint. Ifyou’re using a

yellowblue 1-63Larger ChildrenChildren who have outgrown child restraints shouldwear the vehicle’s safety belts.If you have the choice, a child sh

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

yellowblue 1-64CAUTION:Never do this.Here two children are wearing the same belt. Thebelt can’t properly spread the impact forces. In acrash, the

yellowblue 1-65CAUTION:Never do this.Here a child is sitting in a seat that has alap-shoulder belt, but the shoulder part is behindthe child. If t

yellowblue 1-66Safety Belt ExtenderIf the vehicle’s safety belt will fasten around you, youshould use it.But if a safety belt isn’t long enough to

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

yellowblue 2-2KeysCAUTION:Leaving children in a vehicle with the ignitionkey is dangerous for many reasons. A child orothers could be badly injure

yellowblue 2-3Your vehicle has onedouble-sided key for theignition and all door locks.Your vehicle may also havea key that locks and unlocksthe ce

yellowblue 2-4To open the rear access door from the inside, thepassenger’s side front doormust be opened first. Then,use the handle located onthe

yellowblue 2-5There are several ways to lock and unlock your vehicle.You can use the keyless entry system (if equipped).You can also use your key.

yellowblue 2-6The power door locks will operate at any time withoutthe ignition being on.The power door locks will also automatically lock whenthe

yellowblue 2-7Check the location. Other vehicles or objects may beblocking the signal. Take a few steps to the left orright, hold the transmitter

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

yellowblue 2-8To replace the battery in the keyless entry transmitter:1. Insert a dime in the slot between the covers of thetransmitter housing ne

yellowblue 2-9Tailgate RemovalThe tailgate on your vehicle can be removed to allow fordifferent loading situations. Although the tailgate can bere

yellowblue 2-104. After removing the tailgate, reinstall the theftdeterrent bracket bolt. The bracket does not need tobe in place to install the b

yellowblue 2-11Content Theft-Deterrent (If Equipped)Your vehicle may be equipped with a ContentTheft-Deterrent alarm system.With this system, theS

yellowblue 2-12Testing the AlarmThe alarm can be tested by following these steps:1. From inside the vehicle, lower the driver’s windowand open the

yellowblue 2-13New Vehicle “Break-In”NOTICE:Your vehicle doesn’t need an elaborate“break-in.” But it will perform better in the longrun if you fol

yellowblue 2-14ACCESSORY (A): ACCESSORY lets you use things like the radio, power windows and the windshieldwipers when the engine is off. Push in

yellowblue 2-15NOTICE:If your key seems stuck in LOCK and you can’tturn it, be sure you are using the correct key; ifso, is it all the way in? If

yellowblue 2-16Retained Accessory Power (If Equipped)Your vehicle may be equipped with a RetainedAccessory Power (RAP) feature which will allowcer

yellowblue 2-17NOTICE:Holding your key in START for longer than 15 seconds at a time will cause your battery to be drained much sooner. And the ex

yellowblue 1-3Cushion Tilt (If Equipped)If your vehicle has this feature, you can raise or lowerthe front of the driver’s or passenger’s seat with

yellowblue 2-18Starting Your V6 Engine1. Without pushing the accelerator pedal, turn yourignition key to START. When the engine starts, letgo of t

yellowblue 2-19Engine Coolant Heater (If Equipped)In very cold weather, 0 F (-18 C) or colder, theengine coolant heater can help.You’ll get easie

yellowblue 2-20Automatic Transmission OperationThere are several different positions for your shift lever.If your vehicle is equipped with an auto

yellowblue 2-21CAUTION: (Continued)If you have four-wheel drive, your vehicle will be free to roll -- even if your shift lever is inPARK (P) -- if

yellowblue 2-22NOTICE:Damage to your transmission caused by shiftingout of PARK (P) or NEUTRAL (N) with theengine racing isn’t covered by your war

yellowblue 2-23NOTICE:If your rear wheels can’t rotate, don’t try todrive. This might happen if you were stuck invery deep sand or mud or were up

yellowblue 2-24Manual Transmission Operation5-Speed (VORTEC 6000 V8 and 6.5L V8 Diesel Engines)Here’s how to operate your transmission.FIRST (1) i

yellowblue 2-25FOURTH (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

yellowblue 2-26NEUTRAL (N): Use this position when you start oridle your engine.REVERSE (R): To back up, first press down the clutchpedal. Wait fo

yellowblue 2-27Shift LightIf you have a manualtransmission, you may havea SHIFT light. This lightwill show you when to shiftto the next higher gea