1999 GMC Sierra Owners Manual

into NEUTRAL (N), or with a manual transmission, press the clutch pedal.

2. Shift the transfer case shift lever in one

continuous motion.

Don’t pause in NEUTRAL (N) as you shift the transfer case into 4-WHEEL LOW (4L), or your gears could clash. Remember that driving in 4-WHEEL HIGH (4H) or 4-WHEEL LOW (4L) may reduce fuel economy. Also, driving in four-wheel drive on dry pavement could cause your tires to wear faster and make your transfer case harder to shift and run noisier. When your headlamps or parking lamps are on, rotate the thumb wheel next to the headlamp switch up to brighten or down to dim your transfer case indicator light.

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Use these switches to shift into and out of four-wheel drive. You can choose among three driving settings: 2HI: This setting is for driving in most street and highway situations. Your front axle is not engaged in two-wheel drive. 4HI: This setting engages your front axle to help drive your vehicle. Use 4HI when you need extra traction, such as on snowy or icy roads, or in most off-road situations. 4LO: This setting also engages your front axle to give you extra traction. You may never need 4LO. It sends the maximum power to all four wheels. You might choose 4LO if you were driving off-road in sand, mud or deep snow and climbing or descending steep hills. Indicator lights in the switches show you which setting you are in. The indicator lights will come on briefly when you turn on the ignition and the last chosen setting will stay on. If the lights do not come on, you should take your vehicle in for service. An indicator light will flash while shifting. It will remain illuminated when the shift is completed. If for some reason the transfer cannot make a requested shift, it will return to the last chosen setting.

Electronic Transfer Case (If Equipped)

If your four-wheel-drive vehicle has the electronic transfer case, the transfer case switches are below and to the left of the climate control system.

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Shifting from 2HI to 4HI Press and release the 4HI switch. This can be done at any speed, and the front axle will lock automatically with some delay.

Shifting from 4HI to 2HI Press and release the 2HI switch. This can be done at any speed, and the front axle will unlock automatically with some delay.

Shifting from 2HI or 4HI to 4LO To shift from 2HI or 4HI to 4LO, the vehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmission in NEUTRAL (N). The preferred method for shifting into 4LO is to have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Press and release the 4LO switch. You must wait for the 4LO indicator light to stop flashing and remain illuminated before shifting your transmission into gear. If the 4LO switch is pressed when your vehicle is in gear and/or moving, the 4LO indicator light will flash for 30 seconds and not complete the shift unless your vehicle is moving slower than 3 mph (4.8 km/h) and the transmission is in NEUTRAL (N). After 30 seconds the transfer case will return to 4HI.

Shifting from 4LO to 4HI or 2HI To shift from 4LO to 4HI or 2HI, your vehicle must be stopped or moving less than 3 mph (4.8 km/h) with the transmission in NEUTRAL (N). The preferred method for shifting out of 4LO is to have your vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Press and release the 4HI switch. You must wait for the 4HI indicator light to stop flashing and remain illuminated before shifting your transmission into gear. If the 4HI switch is pressed when your vehicle is in gear and/or moving, the 4HI indicator light will flash for 30
seconds but will not complete the shift unless the vehicle is moving slower than 3 mph (4.8 km/h) and the transmission is in NEUTRAL (N). Parking Brake To set the parking brake, hold the regular brake pedal down with your right foot. Push down the parking brake pedal with your left foot. If the ignition is on, the brake system warning light will come on. To release the parking brake, hold the regular brake pedal down.

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Pull the lever, located just above the parking brake pedal, marked BRAKE RELEASE.

If the ignition is on when the parking brake is released, the brake system warning light will go off.

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NOTICE:

Driving with the parking brake on can cause your rear brakes to overheat. You may have to replace them, and you could also damage other parts of your vehicle. Always check to be sure your parking brake is fully released before you drive.

If you are towing a trailer and are parking on any hill, see “Towing a Trailer” in the Index. That section shows what to do first to keep the trailer from moving. If you have a 3500 HD model, it is recommended that the propshaft-mounted parking brake be burnished as part of the new vehicle break-in. The parking brake will work best after it has been burnished following these instructions. Make 10 stops, using the parking brake foot pedal, from 20 mph (32 km/h) about 2 1/2 miles (4 km) apart. In between stops, drive the vehicle at 20 mph (32 km/h).

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Shifting Into PARK (P) (Automatic Transmission Only)

CAUTION:

It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle won’t move, even when you’re on fairly level ground, use the steps that follow. With four-wheel drive if your transfer case is in NEUTRAL (N), your vehicle will be free to roll, even if your shift lever is in PARK (P). So, be sure the transfer case is in a drive gear -- not in NEUTRAL (N). If you’re pulling a trailer, see “Towing a Trailer” in the Index.

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1. Hold the brake pedal down with your right foot and

set the parking brake.

2. Move the shift lever into PARK (P) position

like this:

D Pull the lever toward you.

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Leaving Your Vehicle With the Engine Running (Automatic Transmission Only)

CAUTION:

It can be dangerous to leave your vehicle with the engine running. Your vehicle could move suddenly if the shift lever is not fully in PARK (P) with the parking brake firmly set. If you have four-wheel drive with a manual transfer case shift lever and your transfer case is in NEUTRAL (N), your vehicle will be free to roll, even if your shift lever is in PARK (P). So be sure the transfer case is in a drive gear -- not in NEUTRAL (N). And, if you leave the vehicle with the engine running, it could overheat and even catch fire. You or others could be injured. Don’t leave your vehicle with the engine running unless you have to.

D Move the lever up as far as it will go.

3. If you have four-wheel drive, be sure the transfer

case is in a drive gear--not in NEUTRAL (N).

4. Turn the ignition key to LOCK. 5. Remove the key and take it with you. If you can leave your vehicle with the ignition key in your hand, your vehicle is in PARK (P).

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If you have to leave your vehicle with the engine running, be sure your vehicle is in PARK (P) and the parking brake is firmly set before you leave it. After you move the shift lever into PARK (P), hold the regular brake pedal down. Then, see if you can move the shift lever away from PARK (P) without first pulling it toward you. If you can, it means that the shift lever wasn’t fully locked into PARK (P). Torque Lock (Automatic Transmission) If you are parking on a hill and you don’t shift your transmission into PARK (P) properly, the weight of the vehicle may put too much force on the parking pawl in the transmission. You may find it difficult to pull the shift lever out of PARK (P). This is called “torque lock.” To prevent torque lock, set the parking brake and then shift into PARK (P) properly before you leave the driver’s seat. To find out how, see “Shifting Into PARK (P)” in the Index. When you are ready to drive, move the shift lever out of PARK (P) before you release the parking brake. If torque lock does occur, you may need to have another vehicle push yours a little uphill to take some of the pressure from the parking pawl in the transmission, so you can pull the shift lever out of PARK (P).

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Shifting Out of PARK (P) (Automatic Transmission)

CAUTION:

Before shifting out of PARK (P) you must fully apply your regular brakes. Your vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. If you’re pulling a trailer, see “Towing a Trailer” in the Index.

Your vehicle has a Brake-Transmission Shift Interlock system (BTSI). You have to fully apply your regular brakes before you can shift from PARK (P) when the ignition is in RUN. See “Automatic Transmission” in the Index. If you cannot shift out of PARK (P), ease pressure on the shift lever and push the shift lever all the way up into PARK (P) as you maintain brake application. Then, move the shift lever to any gear you want. If you ever hold the brake pedal down but still can’t shift out of PARK (P), try this: 1. Turn the key to OFF.

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2. Apply and hold the brake until the end of Step 4. 3. Shift to NEUTRAL (N). 4. Start the vehicle and shift to the drive gear you want. 5. Have the Brake-Transmission Shift Interlock system

fixed as soon as you can.

Parking Your Vehicle (Manual Transmission Only) Before you get out of your vehicle, put your manual transmission in REVERSE (R), turn off the engine, and firmly apply the parking brake. If you have four-wheel-drive, be sure your transfer case is in a drive gear. Your vehicle could roll if it isn’t. If you are parking on a hill, or if you are pulling a trailer, see “Towing a Trailer” in the Index.

CAUTION:

Shifting the transfer case to NEUTRAL (N) can cause your vehicle to roll even if the manual transmission is in gear. You or someone else could be seriously injured. Be sure to set the parking brake before placing the transfer case in NEUTRAL (N). See “Parking Brake” in the Index.

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Parking Over Things That Burn

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CAUTION:

Things that can burn could touch hot exhaust parts under your vehicle and ignite. Don’t park over papers, leaves, dry grass or other things that can burn.

Engine Exhaust

CAUTION:

Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you can’t see or smell. It can cause unconsciousness and death. You might have exhaust coming in if: D Your exhaust system sounds strange

or different.

D Your vehicle gets rusty underneath. D Your vehicle was damaged in a collision. D Your vehicle was damaged when driving

over high points on the road or over road debris.

D Repairs weren’t done correctly. D Your vehicle or exhaust system had been

modified improperly.

If you ever suspect exhaust is coming into your vehicle: D Drive it only with all the windows down to

blow out any CO; and

D Have your vehicle fixed immediately.

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Running Your Engine While You’re Parked (Automatic Transmission) It’s better not to park with the engine running. But if ever you have to, here are some things to know.

CAUTION:

Idling the engine with the climate control system off could allow dangerous exhaust into your vehicle (see the earlier Caution under “Engine Exhaust”). Also, idling in a closed-in place can let deadly carbon monoxide (CO) into your vehicle even if the fan switch is at the highest setting. One place this can happen is a garage. Exhaust -- with CO -- can come in easily. NEVER park in a garage with the engine running. Another closed-in place can be a blizzard. (See “Blizzard” in the Index.)

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Locking Rear Axle (If Equipped) If you have this feature, your locking rear axle can give you additional traction on snow, mud, ice, sand or gravel. It works like a standard axle most of the time, but when one of the rear wheels has no traction and the other does, this feature will allow the wheel with traction to move the vehicle. Windows Manual Windows Turn the hand crank on each door to raise or lower manual windows.

CAUTION:

It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. Don’t leave your vehicle when the engine is running unless you have to. If you’ve left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle won’t move, even when you’re on fairly level ground, always set your parking brake and move the shift lever to PARK (P).

Four-wheel drive vehicles with the transfer case in NEUTRAL (N) will allow the vehicle to roll, even if your shift lever is in PARK (P). So, be sure the transfer case is in a drive gear -- not in NEUTRAL (N). Always set your parking brake. Follow the proper steps to be sure your vehicle won’t move. See “Shifting Into PARK (P)” in the Index. If you’re pulling a trailer, see “Towing a Trailer” in the Index.

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Power Windows (If Equipped)

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Regular and Extended Cab

Crew Cab

If you have the optional power windows, the controls are on each of the side doors. The driver’s door has a switch for the passenger windows as well. Your power windows will work when the ignition has been turned to ACCESSORY or RUN. Press the rear of the switch with the power window symbol on it to lower the window. Press the front of the switch with the power window symbol on it to raise the window.

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The driver’s window also has an express-down feature that allows the window to be lowered without holding the switch. Press and hold the side of the window switch marked AUTO for one second to activate the express-down mode. The express-down mode can be canceled at any time by pressing the opposite side of the switch. To open the window partway, lightly tap the switch until the window is at the desired position.

Lockout Switch (Crew Cab) If you have a Crew Cab and power windows, the power window switch has a lockout feature. This feature prevents the rear windows from operating when the front driver’s side switch is in LOCK. The windows can still be operated using the driver’s window switch. When the switch is moved to NORM, the rear power windows will operate again.

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Swing-Out Windows (Extended Cab)

To open a rear swing-out window, just flip the latch open and swing the glass out.

The latch will catch when the window is fully open and will hold the window in the open position. Sliding Rear Window (If Equipped) To open the sliding rear window, unlock the latch lever by moving the lever toward the front of the cab. Release the lever from the latch plate and slide the window toward the driver’s side of the vehicle. To close the window, slide the window toward the passenger’s side of the vehicle. The latch lever will automatically snap locked on to the latch plate. Try to open the window without releasing the latch lever to be sure the window is in the locked position.

Turn Signal/Multifunction Lever

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Horn Press the pad in the center of the steering wheel to sound the horn. Tilt Wheel (If Equipped)

A tilt steering wheel allows you to adjust the steering wheel before you drive.

You can also raise it to the highest level to give your legs more room when you enter and exit the vehicle. To tilt the wheel, hold the steering wheel and pull the lever. Move the steering wheel to a comfortable level, then release the lever to lock the wheel in place.

The lever on the left side of the steering column includes your: D Turn Signal and Lane Change Indicator D Headlamp High/Low Beam Changer D Windshield Wipers D Windshield Washer D Cruise Control (If Equipped)

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Turn Signal and Lane Change Signals The turn signal has two upward (for right) and two downward (for left) positions. These positions allow you to signal a turn or a lane change. To signal a turn, move the lever all the way up or down. When the turn is finished, the lever will return automatically.

An arrow on the instrument panel will flash in the direction of the turn or lane change.

If you move the lever all the way up or down, and the arrow flashes at twice the normal rate, a signal bulb may be burned out and other drivers may not see your turn signal. If a bulb is burned out, replace it to help avoid an accident. If the arrows don’t go on at all when you signal a turn, check for burned-out bulbs and a blown fuse (see “Fuses and Circuit Breakers” in the Index). Headlamp High/Low-Beam Changer To change the headlamps from low to high beam or high to low beam, pull the multifunction lever all the way toward you. Then release it.

To signal a lane change, just raise or lower the lever until the arrow starts to flash. Hold it there until you complete your lane change. The lever will return by itself when you release it.

When the high beams are on, this light on the instrument panel also will be on.

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Windshield Wipers

You control the windshield wipers by turning the knob with the wiper symbol on it.

For a single wiping cycle, turn the knob to MIST. Hold it there until the wipers start, then let go. The wipers will stop after one cycle. If you want more cycles, hold the knob on MIST longer. You can set the wiper speed for a long or short delay between wipes. This can be very useful in light rain or snow. Turn the knob to choose the delay time. The closer to LOW, the shorter the delay.

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For steady wiping at low speed, turn the knob to the LOW position. For high-speed wiping, turn the knob further, to HIGH. To stop the wipers, turn the knob to OFF. Damaged wiper blades may prevent you from seeing well enough to drive safely. To avoid damage, be sure to clear ice and snow from the wiper blades before using them. If they are frozen to the windshield, carefully loosen or thaw them. If your blades do become damaged, get new blades or blade inserts. Heavy ice or snow can overload your wipers. The windshield wiper motor is protected from overload by a circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. Although protected from electrical overload, overload due to heavy snow, etc. may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using your windshield wipers.

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Windshield Washer

At the top of the lever, there’s a paddle with the word PUSH on it. To spray washer fluid on the windshield, push the paddle.

Washer fluid will spray as long as you push the paddle. When you let go of the paddle, the wipers will continue to wipe for a few seconds and then either stop or return to the preset speed. The use of a hood-mounted air deflector may adversely affect windshield wiper and washer performance. Cruise Control (If Equipped)

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With cruise control, you can maintain a speed of about 25 mph (40 km/h) or more without keeping your foot on the accelerator. This can really help on long trips. Cruise control does not work at speeds below about 25 mph (40 km/h).

When you apply your brakes, the cruise control shuts off.

CAUTION:

In freezing weather, don’t use your washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision.

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CAUTION:

D Cruise control can be dangerous where you

can’t drive safely at a steady speed. So, don’t use your cruise control on winding roads or in heavy traffic.

D Cruise control can be dangerous on

slippery roads. On such roads, fast changes in tire traction can cause needless wheel spinning, and you could lose control. Don’t use cruise control on slippery roads.

Setting Cruise Control

CAUTION:

If you leave your cruise control switch on when you’re not using cruise, you might hit a button and go into cruise when you don’t want to. You could be startled and even lose control. Keep the cruise control switch off until you want to use it.

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1. Move the cruise switch to ON. 2. Get up to the speed you want. 3. Press in the SET button at the end of the lever and

release it.

4. Take your foot off the accelerator pedal.

Resuming a Set Speed Suppose you set your cruise control at a desired speed and then you apply the brake. This, of course, shuts off the cruise control. But you don’t need to reset it. Once you’re going about 25 mph (40 km/h) or more, you can move the cruise switch from ON to R/A (Resume/Accelerate) for about half a second. You’ll go right back up to your chosen speed and stay there. Remember, if you hold the switch at R/A longer than half a second, the vehicle will keep going faster until you release the switch or apply the brake. So unless you want to go faster, don’t hold the switch at R/A.

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Increasing Speed While Using Cruise Control There are two ways to go to a higher speed: D Use the accelerator pedal to get to the higher speed. Press the button at the end of the lever, then release the button and the accelerator pedal. You’ll now cruise at the higher speed.

D Move the cruise switch from ON to R/A. Hold it there until you get up to the speed you want, and then release the switch. (To increase your speed in very small amounts, move the switch to R/A for less than half a second. Each time you do this, your vehicle will go about 1 mph (1.6 km/h) faster.)

Reducing Speed While Using Cruise Control There are two ways to reduce your speed while using cruise control: D Press in the button at the end of the lever until you

reach the lower speed you want, then release it. D To slow down in very small amounts, press the

button for less than half a second. Each time you do this, you’ll go 1 mph (1.6 km/h) slower.

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Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase your speed. When you take your foot off the pedal, your vehicle will slow down to the cruise control speed you set earlier.

Using Cruise Control on Hills How well your cruise control will work on hills depends upon your speed, load and the steepness of the hills. When going up steep hills, you may have to step on the accelerator pedal to maintain your speed. If the steepness of the hill causes the vehicle speed to drop more than 15 mph (24 km/h) below the set speed, your cruise control will automatically disengage. When going downhill, you may have to brake or shift to a lower gear to keep your speed down. Of course, applying the brake takes you out of cruise control. Many drivers find this to be too much trouble and don’t use cruise control on steep hills.

Ending Cruise Control There are two ways to turn off the cruise control: D Step lightly on the brake pedal or D Move the cruise switch to OFF.

Erasing Speed Memory When you turn off the cruise control or the ignition, your cruise control set speed memory is erased.

Exterior Lamps

Your parking lamp and headlamp switch is on the driver’s side of your instrument panel. Turn the knob clockwise, to the parking lamp symbol, to turn on: D Parking Lamps D Sidemarker Lamps D Clearance Lamps (If Equipped) D Taillamps

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D License Plate Lamps D Instrument Panel Lights D Transfer Case Shift Indicator Light

(Four-Wheel-Drive Vehicles)

Turn the knob clockwise again to the master lighting symbol to turn on all the lamps listed as well as the headlamps. Turn the knob counterclockwise, to OFF, to turn off your lamps. Rotate the thumb wheel next to the knob up to adjust instrument panel lights. Rotate the thumb wheel up to the first notch to return the radio display and gearshift indicator LED display to full intensity when the headlamps or parking lamps are on. You can switch your headlamps from high to low beams by pulling on the turn signal/multifunction lever. Headlamps On Reminder A tone will sound when your headlamps are turned on and the key is turned to the OFF, LOCK or ACCESSORY position. If you need to use your headlamps when the key is turned to OFF, LOCK or ACCESSORY, the buzzer can be turned off by turning the thumb wheel next to the parking lamp/headlamp knob all the way down.

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Daytime Running Lamps Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpful in the short periods after dawn and before sunset. The DRL system will make your headlamps come on at a reduced brightness when: D the ignition is on, D the headlamp switch is off and D the parking brake is released. When the DRL are on, only your headlamps will be on. The taillamps, sidemarker and other lamps won’t be on. Your instrument panel won’t be lit up either. When it begins to get dark, your DRL indicator light is a reminder to turn your headlamp switch on. The other lamps that come on with your headlamps will also come on. When you turn off the headlamp switch, the regular lamps will go off, and your headlamps will change to the reduced brightness of DRL.

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To idle your vehicle with the DRL off, set the parking brake. The DRL will stay off until you release the parking brake. As with any vehicle, you should turn on the regular headlamp system when you need it. Interior Lamps Instrument Panel Intensity Control The instrument panel intensity control is located to the right of the headlamp switch. Rotate the thumb wheel up to adjust instrument panel lights. Rotate the thumb wheel up to the first notch to return the radio display and gearshift indicator LED display to full intensity when the headlamps or parking lamps are on. To turn on the dome lamps (with the vehicle doors closed) rotate the thumb wheel up to the second notch position. Illuminated Entry Your vehicle is equipped with an illuminated entry feature. When the doors are opened, the dome lamps will come on if the dome lamp button is out. When all the doors are closed, or the dome lamp button is pressed in, the lamps will stay on for a short period of time and will then go out.

Front Reading Lamps (If Equipped)

If your vehicle has reading lamps, press the button next to the lamp to turn the lamp on. The lamps can be adjusted to point in the direction you want.

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Press the button again to turn the lamp off. Dome Lamps The dome lamps will come on when you open the doors. You can also turn the dome lamps on by rotating the thumb wheel, located next to the parking/headlamps knob, all the way up to the second notch. In this position, the dome lamps will remain on whether the doors are opened or closed.

You can use the DOME OVERRIDE button, located below the parking/headlamp knob, to set the dome lamps to come on automatically when the doors are opened, or remain off. To turn the lamps off, press the button once. With the button in this position, the dome lamps will remain off when the doors are open. To return the lamps to automatic operation, press the button again and return it to the “out” position. With the button in this position, the dome lamps will come on when you open the door.

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Cargo Lamp

Press the ribbed top part of the switch to turn the cargo lamp on. Press the bottom of the switch to turn it off.

Mirrors Inside Day/Night Rearview Mirror

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The dome lamp switch must be on or one of the doors open for the cargo lamp to work.

Pull the tab under the mirror rearward to reduce glare from headlamps behind you after dark. Push the tab forward for normal daytime operation.

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Electrochromic Inside Rearview Mirror with Compass (If Equipped)

Mirror Operation

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Your vehicle may have an electrochromic inside rearview mirror. When on, an electrochromic mirror automatically dims to the proper level to minimize glare from lights behind you after dark. The mirror also includes an eight-point compass display in the upper right corner of the mirror face. When on, the compass automatically calibrates as the vehicle is driven.

The right side of the switch located at the bottom of the mirror turns the electrochromic mirror on and off. The AUTO LED will come on when the electrochromic mirror is turned on. To turn the mirror on, press and hold the MIRROR button for three seconds. The mirror will darken and remain dark until the button is released. To turn the mirror off, press and release the MIRROR button.

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Compass Operation Press the COMP switch once briefly to turn the compass on or off. When the ignition and the compass feature are on, the compass will show two character boxes for approximately two seconds. After two seconds, the mirror will display the compass heading. When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing.

Compass Calibration The compass may need calibration if: D After five seconds, the display does not show a

compass heading (“N” for North, for example), there may be a strong magnetic field interfering with the compass. Such interference may be caused by a magnetic antenna mount, magnetic note pad holder or a similar magnetic item.

D The compass does not display the correct heading

and the compass zone variance is set correctly.

In order to calibrate, the letter “C” must be displayed in the mirror compass windows. If “C” is not displayed,

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push in the “COMP” button for approximately eight seconds or until the letter “C” is displayed. The compass can be calibrated in one of two ways: D Drive the vehicle in circles at 5 mph (8 km/h) or less

until the display reads a direction, or

D Drive the vehicle on your everyday routine and after several turns the compass will become calibrated and will display a direction.

Compass Variance The mirror is set in zone eight upon leaving the factory. It will be necessary to adjust the compass to compensate for compass variance if you live outside zone eight. Under certain circumstances, as during a long distance cross-country trip, it will be necessary to adjust for compass variance. Compass variance is the difference between earth’s magnetic north and true geographic north. If not adjusted to account for compass variance, your compass could give false readings. To adjust for compass variance: 1. Press and hold the COMP button (located at the

bottom of the mirror) for three seconds until a zone number appears in the display.

2. Find your current location and variance zone number

on the following zone map.

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Outside Manual Adjust Mirrors Adjust your outside mirrors so you can just see the side of your vehicle and have a clear view of objects behind you. Some mirrors can be folded in, to enter narrow doorways. The use of hood-mounted air deflectors and add-on convex mirror attachments may adversely affect mirror performance.

3. Press the COMP button on the bottom of the mirror

until the new zone number appears in the display. After you stop pressing the button in, the display will show a compass direction within a few seconds.

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Camper-Type Outside Mirrors (If Equipped)

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If your vehicle is equipped with the camper-type mirrors, they can be adjusted so you can have a clear view of objects behind you.

1. To adjust the mirrors when hauling a slide-in camper

or towing a trailer, rotate the mirror by pushing the mirror head toward the front of the vehicle.

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2. Rotate the mirror head, so that the mirror surface

faces the rear of the vehicle.

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West Coast-Type Outside Mirrors (If Equipped) If your vehicle is equipped with the west coast-type mirrors, they can be adjusted so you can have a clear view of objects behind you.

A. Outer Mirror Frame B. Mirror Head C. Nut

The mirrors can be adjusted by rotating the mirror head (B) and moving the outer mirror frame (A) backward or forward. You can also loosen the nut (C) on the top and bottom of the outer mirror frame to tilt the mirror head.

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Electric Outside Rearview Mirrors (If Equipped)

CAUTION:

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Select the mirror you want to move by moving the center of the switch, located on the driver’s door armrest, to L (left) or R (right).

Then, adjust the mirror angle by pressing the outer arrows on the switch until the mirror is adjusted where you want it. Convex Outside Mirror Your passenger’s side mirror may be convex. A convex mirror’s surface is curved so you can see more from the driver’s seat.

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A convex mirror can make things (like other vehicles) look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on your right. Check your inside mirror or glance over your shoulder before changing lanes.

Storage Compartments Your vehicle includes a number of storage compartments for storage of often-used items. Some vehicles have storage areas in the instrument panel. Use these spaces for items such as gloves or small books. Some models have a storage pocket on each of the front doors. Some vehicles have a storage area behind the seat. Glove Box To open your glove box, move the button toward the passenger’s side and pull the door open.

Center Overhead Console (If Equipped) Your vehicle may have an overhead console. It has storage compartments inside it.

Installing a Garage Door Opener If you have a garage door opener, the front overhead compartment can be used to conveniently store the opener. 1. To install the garage door opener, first open

the compartment door by pressing the release button forward.

2. Peel the protective

backing from the hook and loop patch. Press it firmly to the back of your garage door opener, as close to the center of the opener as possible.

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3. Center the garage door opener activation button over the console door button, and press the opener firmly into place. The pegs inside the compartment door are used to make sure the button on the compartment door will contact the control button on the garage door opener.

4. Add one peg at a time until the PUSH button on the compartment door operates the garage door opener, with the compartment door closed, when you press the button marked PUSH.

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5. Now, with the

compartment door closed, press the button marked PUSH again to make sure the garage door opener operates properly.

Sunglasses Storage Compartment The center overhead compartment can be used to conveniently store your sunglasses. To open the center compartment, press the release button located at the rear of the compartment door.

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With the garage door opener positioned properly and the right number of pegs in place, you should only have to press the PUSH button slightly to operate the opener.

6. Adjust the position of the garage door opener and

add or remove pegs, as needed, until the opener operates properly.

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Place your sunglasses in the compartment door with the lenses facing out. The rear compartment can be used to store a small item, like a book. To open the rear compartment, press the release button located at the rear of the compartment door.

Instrument Panel Cupholder Your vehicle has a cupholder in the middle of the instrument panel.

Center Console Storage Area (If Equipped) Your vehicle may have a console compartment between the bucket seats.

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To use the cupholder, pull the handle and slide the cupholder tray open.

To close the cupholder, slide it back into the instrument panel.

To open it, lift the latch handle and swing the door open.

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Your console may have a cupholder that swings out for the back seat passengers to use.

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Your vehicle may have a memo holder attached to the front of the console. Use it to hold pads of paper or similar items.

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There may also be a drawer that slides out from the bottom of the console.

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Your vehicle may have a removable cupholder at the front of the console. To remove the cupholder, pull the front of the cupholder toward you and lift up.

To insert the cupholder, place it in the console. Engage the rear tabs first and then press the front portion in place.

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Armrest Storage Compartment (If Equipped)

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The storage compartment has a cassette/compact disc holder. The holder will store up to five compact disc cases and up to six cassette tape cases.

Your vehicle may have a center armrest storage compartment in the front bench seat. To open it, fold down the armrest and press the latch handle located at the front of the armrest. Then, let the lid pop up and swing open.

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Ashtrays and Cigarette Lighter Front Ashtray The front ashtray is located at the bottom of the instrument panel. Pull on the notch in the ashtray door to open it.

NOTICE:

If you store paper or other things that burn in your ashtrays, they could be set on fire by cigarettes or other smoking materials. That could cause a fire and possibly damage your vehicle. Do not store papers and other things that burn in your ashtrays.

To remove the front ashtray, press the retainer spring and pivot the ashtray toward you. To replace the ashtray, place the bottom part of the ashtray on the pivot bar at the bottom of its mounting on the instrument panel. Then rotate the ashtray back to its original position.

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The storage compartment also has a folding writing table on top of the armrest lid. To use the writing table, pull the latch at the rear of the table and swing the writing table forward. Use it to hold a pad of paper and a pen.

Rear Ashtray (If Equipped) To use a rear ashtray, if you have them, pull at the top of the ashtray door to flip the door open. To remove a rear ashtray, press down on the inside tabs and open the door fully.

NOTICE:

If you store paper or other things that burn in your ashtrays, they could be set on fire by cigarettes or other smoking materials. That could cause a fire and possibly damage your vehicle. Do not store papers and other things that burn in your ashtrays.

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To use the cigarette lighter, push it in all the way and let go. When it’s ready, it will pop back by itself.

NOTICE:

Holding a cigarette lighter in with your hand while it is heating can make it overload, damaging the lighter and the heating element. Just push the lighter all the way in and let go. When it’s done, it will pop back by itself.

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Sun Visors To block out glare, you can swing down the visors. You can also swing them out to help block glare at the front and side windows. Your visor may have a strap to hold small items, such as maps. Some visors have an extender on the inside edge. When the visor is down, pull the extender out for extra glare coverage at the front or side. Some visors have mirrors with lamps. If the mirror has lamps, they will come on when you lift the mirror cover.

Accessory Power Outlets

Two auxiliary power outlets are located near the cigarette lighter. Use these outlets to power mobile telephones or other devices designed to operate with vehicle electrical systems.

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Instrument Panel

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A. Dome Lamp Switch B. Lamp Controls C. Air Outlets D. Multifunction Lever E. Instrument Cluster F. Gearshift Lever G. Audio System H. Comfort Control System I. Glove Box J. Ashtray

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K. Cupholder L. Auxiliary Power Outlets M. Storage Area or Compact Disc Player (If Equipped) N. Rear Window Defogger Switch (If Equipped) O. Passenger Air Bag Off Switch (If Equipped) P. Electronic Transfer Case Switch (If Equipped) Q. Tilt Lever (If Equipped) R. Parking Brake Release S. Hood Release T. Fuse Block

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Instrument Panel Cluster

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Your instrument cluster is designed to let you know at a glance how your vehicle is running. You’ll know how fast you’re going, about how much fuel you have and many other things you’ll need to know to drive safely and economically.

United States version shown, Canada similar

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Speedometer and Odometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). Your odometer shows how far your vehicle has been driven, in either miles (used in the United States) or kilometers (used in Canada). Tamper-Resistant Odometer Your odometer is tamper-resistant. The odometer will show silver lines between the numbers if someone tries to turn it back. You may wonder what happens if your vehicle needs a new odometer installed. If the new odometer can be set to the mileage total of the old odometer, then it must be. But if it can’t, then it’s set at zero, and a label must be put on the driver’s door to show the old mileage reading when the new odometer was installed.

Trip Odometer The trip odometer can tell you how far your vehicle has been driven since you last set the trip odometer to zero.

To reset the trip odometer, fully press the reset button located near the trip odometer readout. If the reset button is not fully pressed, the trip odometer may not go all the way back to zero. If it doesn’t, you may have to press the reset button again to reset the readout to zero. Tachometer Your tachometer displays the engine speed in revolutions per minute (rpm).

NOTICE:

On vehicles with a manual transmission, if you operate the engine with the tachometer in the red area, your engine or other parts could be damaged. Damage to your engine or vehicle caused by operating the engine in the red area isn’t covered by your vehicle warranty. Don’t operate the engine with the tachometer in the red area.

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Warning Lights, Gages and Indicators This part describes the warning lights and gages that may be on your vehicle. The pictures will help you locate them. Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to your warning lights and gages could also save you or others from injury. Warning lights come on when there may be or is a problem with one of your vehicle’s functions. As you will see in the details on the next few pages, some warning lights come on briefly when you start the engine just to let you know they’re working. If you are familiar with this section, you should not be alarmed when this happens. Gages can indicate when there may be or is a problem with one of your vehicle’s functions. Often gages and warning lights work together to let you know when there’s a problem with your vehicle.

When one of the warning lights comes on and stays on when you are driving, or when one of the gages shows there may be a problem, check the section that tells you what to do about it. Please follow this manual’s advice. Waiting to do repairs can be costly -- and even dangerous. So please get to know your warning lights and gages. They’re a big help. Safety Belt Reminder Light When the key is turned to RUN or START, a tone will come on for about eight seconds to remind people to fasten their safety belts, unless the driver’s safety belt is already buckled.

The safety belt light will also come on and stay on for about 20 seconds, then it will flash for about 55 seconds.

If the driver’s belt is already buckled, neither the tone nor the light will come on.

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Air Bag Readiness Light There is an air bag readiness light on the instrument panel, which shows AIR BAG. The system checks the air bag’s electrical system for malfunctions. The light tells you if there is an electrical problem. The system check includes the air bag sensors, the air bag modules, the wiring and the crash sensing and diagnostic module. For more information on the air bag system, see “Air Bag” in the Index.

This light will come on when you start your engine, and it will flash for a few seconds. Then the light should go out. This means the system is ready.

If the air bag readiness light stays on after you start the engine or comes on when you are driving, your air bag system may not work properly. Have your vehicle serviced right away. The air bag readiness light should flash for a few seconds when you turn the ignition key to RUN. If the light doesn’t come on then, have it fixed so it will be ready to warn you if there is a problem.

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AIR BAG OFF Light (Extended Cab Pickup) When you turn the right front passenger’s air bag off, this light will come on and stay on to remind you that the air bag has been turned off. This light will go off when you turn the air bag back on again. See “AIR BAG OFF Switch” in the Index for more on this, including important safety information.

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CAUTION:

CAUTION:

If the right front passenger’s air bag is turned off for a person who isn’t in a risk group identified by the national government, that person won’t have the extra protection of an air bag. In a crash, the air bag wouldn’t be able to inflate and help protect the person sitting there. Don’t turn off the passenger’s air bag unless the person sitting there is in a risk group. See “AIR BAG OFF Switch” in the Index for more on this, including important safety information.

If the air bag readiness light ever comes on when you have turned off the air bag, it means that something may be wrong with the air bag system. The right front passenger’s air bag could inflate even though the switch is off. If this ever happens, don’t let anyone whom the national government has identified as a member of a passenger air bag risk group sit in the right front passenger’s position (for example, don’t secure a rear-facing child restraint in the right front passenger’s seat) until you have your vehicle serviced.

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Charging System Indicator Light

Voltmeter

This light should come on briefly when you turn on the ignition, before starting the engine, as a check to show you it is working.

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When your engine is not running, but the ignition is in RUN, this gage shows your battery’s state of charge in DC volts.

After the engine starts, the light should go out. If it stays on or comes on while you are driving, you may have a problem with your charging system. It could indicate a problem with the generator drive belt, or some other charging system problem. Have it checked right away. Driving while this light is on could drain your battery. If you must drive a short distance with this light on, it helps to turn off all your accessories, such as the radio and the air conditioner.

When the engine is running, the gage shows the condition of the charging system. Readings between the low and high warning zones indicate the normal operating range. Readings in the low warning zone may occur when a large number of electrical accessories are operating in the vehicle and the engine is left at an idle for an extended period. This condition is normal since the charging system is not able to provide full power at engine idle. As engine speeds are increased, this condition should correct itself as higher engine speeds allow the charging system to create maximum power.

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You can only drive for a short time with the reading in either warning zone. If you must drive, turn off all unnecessary accessories. Readings in either warning zone indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible. Brake System Warning Light When the ignition is on, the brake system warning light will come on when you set your parking brake. The light will stay on if your parking brake doesn’t release fully. If it stays on after your parking brake is fully released, it means you have a brake problem. Your vehicle’s hydraulic brake system is divided into two parts. If one part isn’t working, the other part can still work and stop you. For good braking, though, you need both parts working well. If the warning light comes on, there could be a brake problem. Have your brake system inspected right away.

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This light should come on briefly when you turn the ignition key to RUN. If it doesn’t come on then, have it fixed so it will be ready to warn you if there’s a problem.

If the light comes on while you are driving, pull off the road and stop carefully. You may notice that the pedal is harder to push. Or, the pedal may go closer to the floor. It may take longer to stop. If the light is still on, have the vehicle towed for service. (See “Towing Your Vehicle” in the Index.)

CAUTION:

Your brake system may not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to an accident. If the light is still on after you’ve pulled off the road and stopped carefully, have the vehicle towed for service.

Anti-Lock Brake System Warning Light With the anti-lock brake system, this light will come on when you start your engine and may stay on for several seconds. That’s normal.

If the light stays on, or comes on when you’re driving, your vehicle needs service. If the regular brake system warning light isn’t on, you still have brakes, but you don’t have anti-lock brakes. If the regular brake system warning light is also on, you don’t have anti-lock brakes and there’s a problem with your regular brakes. See “Brake System Warning Light” earlier in this section. The anti-lock brake system warning light should come on briefly when you turn the ignition key to RUN. If the light doesn’t come on then, have it fixed so it will be ready to warn you if there is a problem.

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Engine Coolant Temperature Gage

This gage shows the engine coolant temperature.

It also provides an indicator of how hard your vehicle is working. During a majority of the operation, the gage will read 210_F (100_C) or less. If you are pulling a load or going up hills, it is normal for the temperature to fluctuate and approach the 260_F (125_C) mark. If the gage reaches the 260_F (125_C) mark, it indicates that the cooling system is working beyond its capacity. The “Problems on the Road,” section of this manual shows what to do. See “Engine Overheating” in the Index.

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Malfunction Indicator Lamp (Service Engine Soon Light) (Gasoline Engine)

NOTICE:

Your vehicle is equipped with a computer which monitors operation of the fuel, ignition and emission control systems.

If you keep driving your vehicle with this light on, after a while, your emission controls may not work as well, your fuel economy may not be as good and your engine may not run as smoothly. This could lead to costly repairs that may not be covered by your warranty.

This system is called OBD II (On-Board Diagnostics-Second Generation) and is intended to assure that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment. The SERVICE ENGINE SOON light comes on to indicate that there is a problem and service is required. Malfunctions often will be indicated by the system before any problem is apparent. This may prevent more serious damage to your vehicle. This system is also designed to assist your service technician in correctly diagnosing any malfunction.

NOTICE:

Modifications made to the engine, transmission, exhaust or fuel system of your vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect your vehicle’s emission controls and may cause the SERVICE ENGINE SOON light to come on. Modifications to these systems could lead to costly repairs not covered by your warranty. This may also result in a failure to pass a required Emission Inspection/Maintenance test.

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This light should come on, as a check to show you it is working, when the ignition is on and the engine is not running. If the light doesn’t come on, have it repaired. This light will also come on during a malfunction in one of two ways: D Light Flashing -- A misfire condition has been

detected. A misfire increases vehicle emissions and may damage the emission control system on your vehicle. Dealer or qualified service center diagnosis and service may be required.

D Light On Steady -- An emission control system malfunction has been detected on your vehicle. Dealer or qualified service center diagnosis and service may be required.

If the Light Is Flashing The following may prevent more serious damage to your vehicle: D Reducing vehicle speed. D Avoiding hard accelerations. D Avoiding steep uphill grades. D If you are towing a trailer, reduce the amount of

cargo being hauled as soon as it is possible.

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If the light stops flashing and remains on steady, see “If the Light Is On Steady” following. If the light continues to flash, when it is safe to do so, stop the vehicle. Find a safe place to park your vehicle. Turn the key off, wait at least 10 seconds and restart the engine. If the light remains on steady, see “If the Light Is On Steady” following. If the light is still flashing, follow the previous steps, and drive the vehicle to your dealer or qualified service center for service.

If the Light Is On Steady You may be able to correct the emission system malfunction by considering the following: Did you recently put fuel into your vehicle? If so, reinstall the fuel cap, making sure to fully install the cap. See “Filling Your Tank” in the Index. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap will allow fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light off. Did you just drive through a deep puddle of water? If so, your electrical system may be wet. The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off.

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Have 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 cause your engine not to run as efficiently as designed. You may notice this as stalling after start-up, stalling when you put the vehicle into gear, misfiring, hesitation on acceleration or stumbling on acceleration. (These conditions may go away once the engine is warmed up.) This will be detected by the system and cause the light to turn on. If you experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank of the proper fuel to turn the light off. If none of the above steps have made the light turn off, have your dealer or qualified service center check the vehicle. Your dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that may have developed.

Oil Pressure Gage

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The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals).

CAUTION:

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 could be burned. Check your oil as soon as possible and have your vehicle serviced.

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NOTICE:

Damage to your engine from neglected oil problems can be costly and is not covered by your warranty.

Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range. A reading in the low pressure zone may be caused by a dangerously low oil level or some other problem causing low oil pressure. Check your oil as soon as possible.

Security Light

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This light will come on briefly when you turn the key to START.

The light will come on for five seconds after the key is turned to ON and then go off. If the light flashes, the PasslockR System has entered a tamper mode. If the vehicle fails to start, see “Passlock” in the Index. If the light comes on continuously while driving and stays on, there may be a problem with the Passlock System. Your vehicle will not be protected by Passlock, and you should see your GM dealer.

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Up Shift Light (If Equipped)

Check Gages Light

This light is used on some models with manual transmissions.

This light will come on briefly when you are starting the engine.

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The SHIFT indicator light will help you get the best fuel economy. See “Shift Light” or “Shift Speeds” in this section for more information. Daytime Running Lamps Indicator Light

This light goes on whenever the DRL are on.

If the light comes on and stays on while you are driving, it could indicate a problem with your vehicle. It could be a problem with your oil pressure, coolant temperature, or some other problem. Check your various gages to see if they are in the warning zones. If they are, have your vehicle serviced right away.

When it begins to get dark, the DRL indicator light is a reminder to turn on your headlamps.

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Fuel Gage

The fuel gage, when the ignition is on, tells you about how much fuel you have left in your tank.

The gage will first indicate EMPTY (E) before you are out of fuel, and you should get more fuel as soon as possible.

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Here are four situations you may experience with your fuel gage. None of these indicate a problem with the fuel gage. D At the gas station, the fuel pump shuts off before the

gage reads FULL (F).

D It takes a little more or less fuel to fill up than the

fuel gage indicated. For example, the gage may have indicated the tank was half full, but it actually took a little more or less than half the tank’s capacity to fill the tank.

D The gage moves a little when you turn a corner or

speed up.

D The gage doesn’t go back to EMPTY (E) when you

turn off the ignition.

If you have a diesel engine, see “Fuel Gage” in the Diesel Engine Supplement.

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- NOTES

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Section 3 Comfort Controls and Audio Systems

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In this section, you’ll find out how to operate the comfort control and audio systems offered with your vehicle. Be sure to read about the particular systems supplied with your vehicle.

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Comfort Controls Air Conditioning Heating Ventilation System Defogging and Defrosting Rear Window Defogger (If Equipped) Audio Systems Setting the Clock AM-FM Stereo Playing the Radio AM-FM Stereo with Cassette Tape Player (If Equipped)

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AM-FM Stereo with Cassette Tape and Automatic Tone Control (If Equipped) CD Adapter Kits AM-FM Stereo with Compact Disc Player and Automatic Tone Control (If Equipped) Remote Compact Disc Player (If Equipped) Theft-Deterrent Feature (If Equipped) Understanding Radio Reception Tips About Your Audio System Care of Your Cassette Tape Player Care of Your Compact Discs Care of Your Compact Disc Player Fixed Mast Antenna

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Comfort Controls Heater Control System

Fan Knob The knob on the left side of the heating system control panel controls the fan speed. The knob has four speed positions. To increase airflow, turn the knob toward HI. To decrease airflow, turn it toward LO. To turn the fan off, turn the knob to OFF.

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Temperature Knob The middle knob on the control panel lets you select the relative temperature of the air flowing into the passenger area of your vehicle. This knob will allow you to adjust the relative air temperature independently of the function knob setting. Turn the knob clockwise, toward the red area, for warmer air. Turn the knob counterclockwise, toward the blue area, for cooler air. Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. The control knob can be placed in any position between two mode settings to blend the flow of air.

VENT: This setting directs air through the

instrument panel outlets.

VENT/HEAT: Use this setting to divide airflow between the floor outlets and instrument panel outlets.

HEATER: This setting directs air through the

floor outlets.

DEFOG: This setting directs air to the heater

outlets and toward the windshield.

DEFROST: This setting directs air toward

the windshield.

Heater and Air Conditioning Control System (If Equipped)

Fan Knob The knob on the left side of the heating system control panel controls the fan speed. The knob has four speed positions. To increase airflow, turn the knob toward HI. To decrease airflow, turn it toward LO. To turn the fan off, turn the knob to OFF. If you have the air conditioner on, turning the fan knob to OFF also turns off the A/C compressor. In OFF, while driving, ram airflow will vent to the floor outlets. The mode knob will not redirect ram airflow to other selected outlet positions. This is normal operation for the OFF position.

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Temperature Knob The middle knob on the control panel lets you select the relative temperature of the air flowing into the passenger area of your vehicle. This knob will allow you to adjust the relative air temperature independently of the function knob setting. Turn the knob clockwise, toward the red area, for warmer air. Turn the knob counterclockwise, toward the blue area, for cooler air.

Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. The control knob can be placed in any position between two mode settings to blend the flow of air.

VENT: This setting directs air through the

instrument panel outlets.

VENT/HEAT: Use this setting to divide airflow between the floor outlets and instrument panel outlets.

HEATER: This setting directs air through the

heater floor outlets.

DEFOG: This setting directs air to the heater

outlets and toward the windshield.

DEFROST: This setting directs air toward

the windshield.

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Air Conditioning On hot days, open the windows long enough to let hot air inside escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. The recirculation button, between the fan and temperature knobs, allows the air inside your vehicle to be recirculated. This setting helps to maximize your air conditioner’s performance and your vehicle’s fuel economy. This setting also cools the air the fastest and can be used to keep unwanted odors and/or dust from entering the vehicle. When using the air conditioner, turn off recirculation after the vehicle reaches a comfortable interior temperature. When the right knob on the control panel is between HEATER and DEFROST, the recirculation feature will not function. The A/C button, between the temperature and mode knobs, allows the air coming into your vehicle to be cooled. This setting is useful for normal cooling on hot days. When you use A/C with the recirculation button pushed in, turn off recirculation as soon as the vehicle reaches a comfortable interior temperature.

With the A/C on, turn the temperature knob to MAX for maximum cooling. This setting also puts the system in the recirculation mode and helps to maximize your air conditioner’s performance and your vehicle’s fuel economy. This setting also cools the air the fastest. After the vehicle’s interior reaches a comfortable temperature, turn the temperature knob clockwise, to place the air conditioning system in the normal mode. Heating The heater works best if you keep your windows closed while using it. On cold days, use the HEATER or VENT/HEAT setting with the temperature knob in the red area. If you use the engine coolant heater before starting your engine in cold weather, 20_F (-8_C) or lower, your heating system will produce warmer air faster, to heat the passenger compartment in cold weather. The use of an engine coolant heater also reduces the time it takes for the engine to reach normal operating temperature, and shortens the time it takes the heater to reach full output. For more information, see “Engine Coolant Heater” in the Index.

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Ventilation System For mild outside temperatures when little heating or cooling is needed, use VENT to direct outside air through your vehicle. Air will flow through the instrument panel outlets. Your vehicle’s ventilation system supplies outside air to the inside of your vehicle when it is moving. With the side windows closed, air will flow into the front air inlet grilles, through the vehicle, and out the air exhaust valves. Outside air will also enter the vehicle when the heater or the air conditioning fan is running, unless you have the recirculation button pushed in. For more information on the recirculation button, see “Air Conditioning” earlier in this section.

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Your vehicle has air outlets in the center and on the sides of your instrument panel. You can move the outlets from side-to-side or up and down to direct the flow of air, or close the outlets altogether. When you close an outlet, it will increase the flow of air coming out of any outlets that are open. These outlets do not completely shut off airflow when in the closed position.

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Rear Window Defogger (If Equipped) If you see lines running across the rear window, you have a rear window defogger. The lines warm the glass.

To turn on the rear window defogger, press this button next to the fan control knob. The rear window defogger will only work if the ignition switch is turned to RUN. For best results, clear the window of as much snow or ice as possible first.

The defogger will shut itself off after several minutes. If you need additional warming time, press the button again. You can turn the defogger off at any time by pressing the button. Do not attach a temporary vehicle license, tape or decals across the defogger grid on the rear window.

Ventilation Tips D Keep the hood and front air inlet free of ice, snow or

any other obstruction (such as leaves). The heater and defroster will work far better, reducing the chance of fogging the inside of your windows.

D When you enter a vehicle in cold weather, turn the blower fan to HI for a few moments before driving. This helps clear the intake ducts of snow and moisture, and reduces the chance of fogging the inside of your windows.

D Keep the air path under the front seats clear of objects.

This helps air to circulate throughout your vehicle.

D The use of hood air deflectors may adversely affect the performance of the heating and air conditioning system.

Defogging and Defrosting On cool, humid days, use DEFOG to keep the windshield and side windows clear. Use DEFROST to remove fog or ice from the windshield in extremely humid or cold conditions. Use DEFROST with the temperature knob toward the red area and the fan control toward HI.

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NOTICE:

Don’t use a razor blade or something else sharp on the inside of the rear window. If you do, you could cut or damage the warming grid, and the repairs wouldn’t be covered by your warranty.

Audio Systems Your Delco Electronics audio system has been designed to operate easily and give years of listening pleasure. You will get the most enjoyment out of it if you acquaint yourself with it first. Find out what your Delco Electronics system can do and how to operate all its controls, to be sure you’re getting the most out of the advanced engineering that went into it.

Setting the Clock for Systems with SET Button Press SET. Within five seconds, press and hold the SEEK right arrow until the correct minute appears on the display. Press and hold the SEEK left arrow until the correct hour appears on the display. Setting the Clock for Systems with HR and MN Buttons Press and hold HR until the correct hour appears on the display. Press and hold MN until the correct minute appears on the display. To display the clock with the ignition off, press RECALL or HR/MN and the time will be displayed for a few seconds. There is an initial two-second delay before the clock goes into the time-set mode.

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Finding a Station AM-FM: Press the lower knob to switch between AM and FM. The display shows your selection. TUNE: Turn the lower knob to tune in radio stations. SEEK: Press the right arrow to tune to the next higher station and the left arrow to tune to the next lower station and stay there. SCAN: Press both SEEK buttons to listen to a few seconds of each radio station. SCAN will light up on the display. Press the right arrow to tune in the next higher station and press the left arrow to tune to the next lower station. Press VOLUME or both SEEK buttons to stop scanning. PUSHBUTTONS: The four numbered pushbuttons let you return to your favorite stations. You can set up to 14 stations (seven AM and seven FM). Just: 1. Turn the radio on. 2. Press AM-FM to select the band. 3. Tune in the desired station. 4. Press SET. (SET will appear on the display.)

AM-FM Stereo

Playing the Radio VOLUME: This knob turns the system on and off and controls the volume. To increase volume and turn the radio on, turn the knob clockwise. Turn it counterclockwise to decrease volume and turn the radio off. RECALL: Display the time with the ignition off by pressing the recall knob. When the radio is playing, press this knob to recall the station frequency.

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5. Press one of the four pushbuttons within five

seconds. Whenever you press that numbered button, the station you set will return.

6. Repeat the steps for each pushbutton. In addition to the four stations already set, up to three more stations may be preset on each band by pressing two adjoining buttons at the same time. Just: 1. Tune in the desired station. 2. Press SET. (SET will appear on the display.) 3. Press two adjoining buttons at the same time, within

five seconds. Whenever you press the same two buttons, the station you set will return.

4. Repeat the steps for each pair of pushbuttons.

Setting the Tone BASS: Slide this lever up or down to increase or decrease bass. TREB: Slide this lever up or down to increase or decrease treble. If a station is weak or noisy, you may want to decrease the treble.

Adjusting the Speakers BAL: Turn the control behind the upper knob to move the sound to the left or right speakers. The middle position balances the sound between the speakers. FADE: Turn the control behind the lower knob to move the sound to the front or rear speakers. The middle position balances the sound between the speakers.

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Finding a Station AM-FM: Press the lower knob to switch between AM, FM1 and FM2. TUNE: Turn the lower knob to tune in radio stations. SEEK: Press the right arrow to tune to the next higher station and the left arrow to tune to the next lower station and stay there. PUSHBUTTONS: The four numbered pushbuttons let you return to your favorite stations. You can set up to 21 stations (seven AM, seven FM1 and seven FM2). Just: 1. Turn the radio on. 2. Press AM-FM to select the band. 3. Tune in the desired station. 4. Press SET. (SET will appear on the display.) 5. Press one of the four pushbuttons within five

seconds. Whenever you press that numbered button, the station you set will return.

6. Repeat the steps for each pushbutton.

AM-FM Stereo with Cassette Tape Player (If Equipped)

Playing the Radio VOLUME: This knob turns the system on and off and controls the volume. To increase volume and turn the radio on, turn the knob clockwise. Turn it counterclockwise to decrease volume and turn the radio off. RECALL: Display the time with the ignition off by pressing this knob. When the radio is playing, press this knob to recall the station frequency.

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In addition to the four stations already set, up to three more stations may be preset on each band by pressing two adjoining buttons at the same time. Just: 1. Tune in the desired station. 2. Press SET. (SET will appear on the display.) 3. Press two adjoining buttons at the same time, within

five seconds. Whenever you press the same two buttons, the station you set will return.

4. Repeat the steps for each pair of pushbuttons. P.SCAN: Press both SEEK buttons to scan through each of your preset stations. The system will scan through and play each preset station stored on your pushbuttons for a few seconds. Press either SEEK button or RECALL to stop scanning through the preset stations.

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Setting the Tone BASS: Slide this lever up or down to increase or decrease bass. TREB: Slide this lever up or down to increase or decrease treble. If a station is weak or noisy, you may want to decrease the treble.

Adjusting the Speakers BAL: Turn the control behind the upper knob to move the sound to the left or right speakers. The middle position balances the sound between the speakers. FADE: Turn the control behind the lower knob to move the sound to the front or rear speakers. The middle position balances the sound between the speakers.

Playing a Cassette Tape Your tape player is built to work best with tapes that are up to 30 to 45 minutes long on each side. Tapes longer than that are so thin they may not work well in this player. Once the tape is playing, use the knobs for VOLUME, BAL, FADE, BASS and TREB just as you do for the radio.

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Playing the Radio PWR-VOL: Press this knob to turn the system on and off. To increase volume, turn the knob clockwise. Turn it counterclockwise to decrease volume. The knob is capable of being rotated continuously. RECALL: Display the time with the ignition off by pressing this button. When the radio is playing, press this button to recall the station frequency.

REV: Press the SEEK left arrow to reverse the cassette tape. Press the SEEK right arrow to stop reversing the tape. FWD: Press the SEEK right arrow to advance the cassette tape. Press the SEEK left arrow to stop forwarding the tape. RECALL: Press this knob to switch tape sides. EJECT: Press this button to remove the tape or stop the tape and play the radio. CLN: If this message appears on the display, the cassette tape player needs to be cleaned. It will still play tapes, but you should clean it as soon as possible to prevent damage to the tapes and player. See “Care of Your Cassette Tape Player” in the Index. After you clean the player, press and hold EJECT for five seconds to reset the CLN indicator. The radio will display --- to show the indicator was reset.

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SCV: Your system has a feature called Speed-Compensated Volume (SCV). With SCV, your audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Turn the control ring behind the upper knob clockwise to adjust the SCV. Then, as you drive, SCV automatically increases the volume, as necessary, to overcome noise at any particular speed. The volume level should always sound the same to you as you drive. If you don’t want to use SCV, turn the control all the way down. Each notch on the control ring allows for more volume compensation at faster vehicle speeds.

Finding a Station AM-FM: Press this button to switch between AM, FM1
and FM2. The display will show your selection. TUNE: Press this knob lightly so it extends. Turn it to choose radio stations. Push the knob back into its stored position when you’re not using it. SEEK: Press the right arrow to tune to the next higher station and the left arrow to tune to the next lower station and stay there. The sound will mute while seeking. SCAN: Press and hold SEEK for two seconds until SCAN appears on the display. SCAN allows you to listen to stations for a few seconds. The receiver will continue to scan and momentarily stop at each station

until you press the button again. The sound will mute while scanning. PUSHBUTTONS: The six numbered pushbuttons let you return to your favorite stations. You can set up to 18 stations (six AM, six FM1 and six FM2). Just: 1. Turn the radio on. 2. Press AM-FM to select the band. 3. Tune in the desired station. 4. Press AUTO TONE to select the setting you prefer. 5. Press and hold one of the six pushbuttons. The sound

will mute. When it returns, release the button. Whenever you press that numbered button, the station you set will return and the tone you selected will be automatically selected for that button.

6. Repeat the steps for each pushbutton. P. SCAN: The preset scan button lets you scan through your favorite stations stored on your pushbuttons. Select either the AM, FM1 or FM2 mode and then press P. SCAN. It will scan through each station stored on your pushbuttons and stop for a few seconds before continuing to scan through all of the pushbuttons. Press P. SCAN again or one of the pushbuttons to stop scanning to listen to a specific preset station. P. SCAN will light up on the display while in this mode. If one of

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the stations stored on a pushbutton is too weak for the location you are in, the radio display will show the channel number (P1-P6) for several seconds before advancing to the next preset station.

tone adjustment to the BASS and TREB controls. If a BASS or TREB control is rotated, the AUTO TONE display will go blank. Use PUSHBUTTONS to program AUTO TONE.

Setting the Tone BASS: Press lightly on this knob to release it from its stored position. Turn the knob clockwise to increase bass and counterclockwise to decrease bass. When the BASS control is rotated, the AUTO TONE display will go blank. TREB: Press lightly on this knob to release it from its stored position. Turn the knob clockwise to increase treble and counterclockwise to decrease treble. When the TREB control is rotated, the AUTO TONE display will go blank. If a station is weak or noisy, you may want to decrease the treble. Push these knobs back into their stored positions when you’re not using them. AUTO TONE: Press this button to select among the six preset equalization settings and tailor the sound to the music or voice being heard. Each time you press the button, the selection will switch to one of the preset settings of CLASSIC, NEWS, ROCK, POP, C/W (Country/Western) or JAZZ. To return to the manual mode, press and release this button until the AUTO TONE display goes blank. This will return the 3-14

Adjusting the Speakers BAL: Press lightly on this knob to release it from its stored position. Turn the control clockwise to adjust