2004 Chevrolet Avalanche Owners Manual

occupant weight and cargo weight.

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Vehicle Placard: A label permanently attached to a vehicle showing the original equipment tire size and recommended inflation pressure. See Loading Your Vehicle on page 4-54.

Inflation - Tire Pressure The tire and loading information label, shows the correct inflation pressures for your tires when they’re cold. “Cold” means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). See Loading Your Vehicle on page 4-54, for the location of your vehicle’s tire and loading information label. Notice: Don’t let anyone tell you that underinflation or overinflation is all right. It’s not. If your tires don’t have enough air (underinflation), you can get the following:

Too much flexing Too much heat Tire overloading

(cid:127) Bad wear (cid:127) Bad handling (cid:127) Bad fuel economy

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If your tires have too much air (overinflation), you can get the following: (cid:127) Unusual wear (cid:127) Bad handling (cid:127) Rough ride (cid:127) Needless damage from road hazards When to Check Check your tires once a month or more. Also, check the tire pressure of the spare tire. How to Check Use a good quality pocket-type gage to check tire pressure. You can’t tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they’re underinflated. Check the tire’s inflation pressure when the tires are cold. cold means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). Remove the valve cap from the tire valve stem. Press the tire gage firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the tire and loading information label, no further adjustment is necessary. If the pressure is low, add air until you reach the recommended amount.

(cid:127) (cid:127) (cid:127) If you overfill the tire, release air by pushing on the metal stem in the center of the tire valve. Recheck the tire pressure with the tire gage. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.

Tire Pressure Monitor System The Tire Pressure Monitor (TPM) system uses radio and sensor technology to check tire pressure levels. If your vehicle has this feature, sensors are mounted on each tire and wheel assembly, except the spare tire. The TPM sensors transmit tire pressure readings to a receiver located in the vehicle. When a low tire pressure condition is detected, the TPM system will display the CHECK TIRE PRESSURE warning message on the Driver Information Center (DIC); and at the same time illuminate the low tire pressure warning symbol. For additional information and details about the DIC operation and displays see DIC Operation and Displays on page 3-50 and DIC Warnings and Messages on page 3-60.

When the tire pressure monitoring system warning light is lit, one or more of your tires is significantly under-inflated.

You should stop and check your tires as soon as possible, and inflate them to the proper pressure as indicated on the vehicle’s tire information placard. Driving on a significantly under-inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Each tire, including the spare, should be checked monthly when cold and set to the recommended inflation pressure as specified in the vehicle placard and owner’s manual. The Certification/Tire label or the Tire and Loading Information label (tire information placard) shows the size of your vehicle’s original tires and the correct inflation pressure for your vehicle’s tires when they are cold. See Inflation - Tire Pressure on page 5-72. For the location of the tire and loading information label, see Loading Your Vehicle on page 4-54.

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Your vehicle’s TPM system can alert you about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection and Rotation on page 5-76 and Tires on page 5-64. Notice: Do not use a tire sealant if your vehicle is equipped with Tire Pressure Monitors. The liquid sealant can damage the tire pressure monitor sensors. TPM Sensor Identification Codes Each TPM sensor has a unique identification code. Any time you rotate your vehicle’s tires or replace one or more of the TPM sensors, the identification codes will need to be matched to the new tire/wheel position. Each tire/wheel position is matched to a sensor, by increasing or decreasing the tire’s air pressure. The sensors are matched to the tire/wheel positions in the following order: left front (LF); right front (RF); right rear (RR) and left rear (LR). You will have one minute to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than one minute, to match the first tire and wheel, or more than five minutes to match all four tire and wheel positions the matching process stops and you will need to start over.

The TPM sensor matching process is outlined below: 1. Set the Parking brake. 2. Turn the ignition switch to RUN with the engine off. 3. Turn the exterior lamp switch from “Off” to “On” four times within 3 seconds. A double horn chirp will sound and the TPM low tire warning light will begin to flash. The double horn chirp and flashing TPM warning light indicate that the TPM matching process has started. The TPM warning light should continue flashing throughout the matching procedure. The SERVICE TIRE MONITOR message will be displayed on the Driver Information Center (DIC).

4. Start with the left (driver’s side) front tire. 5. Remove the valve cap from the valve cap stem.

Activate the TPM sensor by increasing or decreasing the tire’s air pressure for 10 seconds, then stop and listen for a single horn chirp. The single horn chirp should sound within 15 seconds, confirming that the sensor identification code has been matched to this tire and wheel position. If you do not hear the confirming single horn chirp, you will need to start over with step number one. To let air-pressure out of a tire you can use the pointy end of the valve cap, a pencil-style air pressure gage or a key.

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Federal Communications Commission and Industry and Science Canada The TPM system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry and Science Canada. This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry and Science Canada. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation of the device. Changes or modifications to this system by other than an authorized service facility could void authorization to use this equipment.

6. Proceed to the right (passenger’s side) front tire,

and repeat the procedure in step 5.

7. Proceed to the right (passenger’s side) rear tire,

and repeat the procedure in step 5.

8. Proceed to the left (driver’s side) rear tire, and

repeat the procedure in step 5.

9. After hearing the confirming horn chirp for the left rear tire, check to see if the TPM warning light is still flashing. If yes, turn the ignition switch to OFF. 10. Set all four tires to the recommended air pressure level as indicated on the Certification/Tire label or the Tire and Loading Information label.

11. Put the valve caps back on the valve stems The spare tire does not have a TPM sensor. If you replace one of the road tires with the spare, the CHECK TIRE PRESSURE message will be displayed on the DIC screen. This message should go off once you re-install the road tire containing the TPM sensor. The SERVICE TIRE MONITOR message is displayed when the TPM system is malfunctioning. One or more missing or inoperable TPM sensors will cause the service tire monitor message to be displayed. See your dealer for service.

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Tire Inspection and Rotation Tires should be rotated every 5,000 to 8,000 miles (8 000 to 13 000 km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See When It Is Time for New Tires on page 5-77 and Wheel Replacement on page 5-80 for more information. Make sure the spare tire is stored securely. Push, pull, and then try to rotate or turn the tire. If it moves, use the ratchet/wheel wrench to tighten the cable. See Changing a Flat Tire on page 5-84. The purpose of regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See Scheduled Maintenance on page 6-4.

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When rotating your tires, always use the correct rotation pattern shown here. After the tires have been rotated, adjust the front and rear inflation pressures as shown on the tire and loading information label. See Loading Your Vehicle on page 4-54 and Inflation - Tire Pressure on page 5-72, for more information. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications on page 5-122. If your vehicle has the Tire Pressure Monitor (TPM) system, the sensors will need to be reset after a tire rotation is performed. See “TPM Sensor Identification Codes” under Tire Pressure Monitor System on page 5-73.

{CAUTION:

Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off. See “Changing a Flat Tire” in the Index.

When It Is Time for New Tires

One way to tell when it’s time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. Some commercial truck tires may not have treadwear indicators.

You need a new tire if any of the following statements are true: (cid:127) You can see the indicators at three or more places

around the tire.

(cid:127) You can see cord or fabric showing through the tire’s

rubber. The tread or sidewall is cracked, cut or snagged deep enough to show cord or fabric. The tire has a bump, bulge or split. The tire has a puncture, cut or other damage that can’t be repaired well because of the size or location of the damage.

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(cid:127) (cid:127) (cid:127) Buying New Tires To find out what kind and size of tires you need, look at the Certification/Tire label or the Tire and Loading Information label. See Loading Your Vehicle on page 4-54, for more information about these labels and where they can be found on your vehicle. The tires installed on your vehicle when it was new had a Tire Performance Criteria Specifications (TPC Spec) number on each tire’s sidewall. When you get new tires, GM recommends that you get tires with that same TPC Spec number. That way your vehicle will continue to have tires that are designed to give proper endurance, handling, speed rating, load range, traction, ride, tire pressure monitoring system performance and other things during normal service on your vehicle. If your tires have an all-season tread design, the TPC number will be followed by an “MS” (for mud and snow). When ever you replace your tires with those not having a TPC Spec number, make sure they are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires. If you replace your vehicle’s tires with those not having a TPC Spec number, the tire pressure monitoring system may give an inaccurate low pressure warning. Non-TPC Spec tires may give a low pressure warning that is higher or lower than the proper warning level you would get with TPC Spec numbered tires.

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{CAUTION:

Mixing tires could cause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes may also cause damage to your vehicle. Be sure to use the same size and type tires on all wheels. Your vehicle may be equipped with a different size spare than the road tires (those originally installed on your vehicle). When new, your vehicle included a spare tire and wheel assembly with a similar overall diameter as your vehicle’s road tires and wheels, so it is all right to drive on it. Because this spare was developed for use on your vehicle, it will not affect vehicle handling.

{CAUTION:

If you use bias-ply tires on your vehicle, the wheel rim flanges could develop cracks after many miles of driving. A tire and/or wheel could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on your vehicle.

Uniform Tire Quality Grading Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance. (This applies only to vehicles sold in the United States.) The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading system does not apply to deep tread, winter-type

snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards. Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1.5) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

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Traction – AA, A, B, C The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics. Temperature – A, B, C The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Scheduled wheel alignment and wheel balancing are not needed. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced.

Wheel Replacement Replace any wheel that is bent, cracked or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer if any of these conditions exist. Your dealer will know the kind of wheel you need.

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Each new wheel should have the same load-carrying capacity, diameter, width, offset and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts and wheel nuts for your vehicle.

Notice: The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance and tire or tire chain clearance to the body and chassis. See Changing a Flat Tire on page 5-84 for more information. Used Replacement Wheels

{CAUTION:

Using the wrong replacement wheels, wheel bolts or wheel nuts on your vehicle can be dangerous. It could affect the braking and handling of your vehicle, make your tires lose air and make you lose control. You could have a collision in which you or others could be injured. Always use the correct wheel, wheel bolts and wheel nuts for replacement.

{CAUTION:

Putting a used wheel on your vehicle is dangerous. You can’t know how it’s been used or how far it’s been driven. It could fail suddenly and cause a crash. If you have to replace a wheel, use a new GM original equipment wheel.

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If your vehicle is a 2500 Series, use tire

Notice: chains only where legal and only when you must. Use chains that are the proper size for your tires. Install them on the tires of the rear axle. Don’t use chains on the tires of the front axle. Tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer’s instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage your vehicle.

Tire Chains

{CAUTION:

If your vehicle is a 1500 Series, don’t use tire chains. They can damage your vehicle because there’s not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension or other vehicle parts. The area damaged by the tire chains could cause you to lose control of your vehicle and you or others may be injured in a crash. Use another type of traction device only if its manufacturer recommends it for use on your vehicle and tire size combination and road conditions. Follow that manufacturer’s instructions. To help avoid damage to your vehicle, drive slowly, readjust or remove the device if it’s contacting your vehicle, and don’t spin your wheels. If you do find traction devices that will fit, install them on the rear tires.

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If a Tire Goes Flat It’s unusual for a tire to “blowout” while you’re driving, especially if you maintain your tires properly. If air goes out of a tire, it’s much more likely to leak out slowly. But if you should ever have a “blowout,” here are a few tips about what to expect and what to do: If a front tire fails, the flat tire will create a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop well out of the traffic lane. A rear blowout, particularly on a curve, acts much like a skid and may require the same correction you’d use in a skid. In any rear blowout, remove your foot from the accelerator pedal. Get the vehicle under control by steering the way you want the vehicle to go. It may be very bumpy and noisy, but you can still steer. Gently brake to a stop, well off the road if possible.

{CAUTION:

Lifting a vehicle and getting under it to do maintenance or repairs is dangerous without the appropriate safety equipment and training. The jack provided with your vehicle is designed only for changing a flat tire. If it is used for anything else, you or others could be badly injured or killed if the vehicle slips off the jack. Use the jack provided with your vehicle only for changing a flat tire.

If a tire goes flat, the next part shows how to use your jacking equipment to change a flat tire safely.

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CAUTION:

(Continued)

4. Turn off the engine and do not restart

while the vehicle is raised.

5. Do not allow passengers to remain in the

vehicle.

6. Put the wheel blocks at the front and rear

of the tire farthest away from the one being changed. That would be the tire on the other side, at the opposite end of the vehicle.

Changing a Flat Tire If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place. Turn on your hazard warning flashers.

{CAUTION:

Changing a tire can be dangerous. The vehicle can slip off the jack and roll over or fall on you or other people. You and they could be badly injured or even killed. Find a level place to change your tire. To help prevent the vehicle from moving:

1. Set the parking brake firmly. 2. Put the shift lever in PARK (P). 3. If you have a four-wheel-drive vehicle, be

sure the transfer case is in a drive gear – not in NEUTRAL.

CAUTION:

(Continued)

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Rear Seat (Passenger Side) Jack Cover

1. Remove the jack cover by turning the two wing nuts

one-quarter turn counterclockwise and pulling the jack cover off.

The following steps will tell you how to use the jack and change a tire. Removing the Spare Tire and Tools The jack and the wheel blocks are located under a cover near the passenger side rear seat. To remove the jack and wheel blocks, do the following:

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2. Release the jack (E) from the mounting bracket (G) by turning the knob (B) on the jack counterclockwise to lower the jack head (F) from the mounting bracket.

3. Remove the wheel blocks (A) attached to the jack (E) by turning the wing nut (C) counterclockwise. Place the wheel blocks where needed as indicated in the previous Caution.

The tools for changing a flat tire are located in the passenger’s side Top-Box storage unit. To remove the tools, do the following: 1. Open the top door on the passenger’s side Top-Box Storage unit. Use the ignition/door key to unlock it if it is locked. See Top-Box Storage on page 2-80
for more information on the Top-Box Storage unit.

A. Wheel Blocks B. Knob C. Wing Nut D. Retaining Hook

E. Jack F. Jack Head G. Mounting Bracket

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Top-Box Storage Unit (Passenger Side)

2. Remove the black pouch from the storage box.

You now have all of the tools you will need to lower the spare tire and change a flat.

You’ll use the jack handle extensions and the wheel wrench to remove the underbody-mounted spare tire.

A. Spare Tire (Valve

G. Hoist Shaft Access

Stem Pointed Down)

B. Hoist Assembly C. Hoist Cable D. Tire Retainer E. Hoist Shaft F. Hoist End of

Extension Tool

Hole

H. Wheel Wrench I. Jack Handle

Extensions J. Hoist Lock

(If Equipped)

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Follow these instructions to lower the spare tire: 1. Your vehicle may be equipped with a hoist lock (J). Open the spare tire lock cover on the bumper and use the ignition key to remove the lock.

3. Insert the hoist end

(open end) (F) of the extension through the hole (G) in the rear bumper.

2. Assemble the wheel wrench (H) and the two jack

handle extensions (I) as shown.

Be sure the hoist end of the extension connects to the hoist shaft (E). The ribbed square end of the extension is used to lower the spare tire.

4. Turn the wheel wrench (H) counterclockwise to lower the spare tire to the ground. Continue to turn the wheel wrench until the spare tire can be pulled out from under the vehicle. If the spare tire does not lower to the ground, the secondary latch is engaged causing the tire not to lower. See “Secondary Latch System” later in this section.

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5. The wheel wrench has a hook that allows you to pull the hoist cable towards you to assist in reaching the spare tire.

Removing the Flat Tire and Installing the Spare Tire Use the following pictures and instructions to remove the flat tire and raise the vehicle.

6. When the tire has been

lowered, tilt the retainer (D) at the end of the cable so it can be pulled up through the wheel opening.

7. Put the spare tire near the flat tire.

The tools you’ll be using include the bottle jack (A), the wheel blocks (B), the jack handle (C), the jack handle extensions (D), and the wheel wrench (E).

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1. If your vehicle has

wheel nut caps, loosen them by turning the wheel wrench counterclockwise. If the vehicle has a center cap with wheel nut caps, the wheel nut caps are designed to stay with the center cap after they are loosened. Remove the entire center cap.

If the wheel has a smooth center cap, place the chisel end of the wheel wrench in the slot on the wheel and gently pry out.

2. Use the wheel wrench to loosen all the wheel nuts. Turn the wheel wrench counterclockwise to loosen the wheel nuts. Don’t remove the wheel nuts yet.

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Jack Positions (overall view)

These locations (A) front position, (B) rear position are the general area of jack placement. See text and art following for the exact jack placement.

{CAUTION:

Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack.

{CAUTION:

Raising your vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle.

3. Position the jack under the vehicle.

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Rear Position 1500

Series

Rear Position 2500

Series

Rear Tire Flat: If the flat tire is on a rear tire of the vehicle, you’ll need to use the jack handle (C) and both jack handle extensions (D). Attach the wheel wrench to the jack handle extensions. Attach the jack handle to the jack.On all 1500 Series vehicles, use the jacking pad provided on the rear axle. On 2500 series vehicles, use the axle between the spring and shock bracket. Turn the wheel wrench clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to clear the ground.

Front Position

Front Tire Flat: If the flat tire is on a front tire of the vehicle, you’ll need to use the jack handle (C) and only one jack handle extension (D). Attach the wheel wrench to the jack handle extension. Attach the jack handle to the jack. Position the jack on the frame behind the flat tire where the frame sections overlap. Turn the wheel wrench clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to clear the ground.

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4. Remove all the wheel nuts and take off the flat tire.

{CAUTION:

Rust or dirt on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off.

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5. Remove any rust or dirt

from the wheel bolts, mounting surfaces and spare wheel.

6. After mounting the

spare, put the wheel nuts back on with the rounded end of the nuts toward the wheel. Tighten each wheel nut by hand. Then use the wheel wrench until the wheel is held against the hub.

{CAUTION:

Never use oil or grease on studs or nuts. If you do, the nuts might come loose. Your wheel could fall off, causing a serious accident.

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Rear Position 1500

Series

Rear Position 2500

Series

Front Position

7. Turn the wheel wrench counterclockwise to lower

the vehicle. Lower the jack completely.

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8. Tighten the nuts firmly in a crisscross sequence as

shown by turning the wheel wrench clockwise.

When you reinstall the full-size wheel and tire, you must also reinstall the wheel cover with attached plastic nuts, the plastic nut caps or the smooth center cap.

If you are reinstalling a wheel cover with attached plastic nuts, place it on the wheel and tighten the nuts by hand to get them started. Then tighten the nut caps with the wheel wrench until they are snug. Do not overtighten the nut caps or they may break. If you are reinstalling plastic nut caps, tighten the nuts by hand to get them started. Then tighten the nut caps with the wheel wrench until they are snug. Do not overtighten the nut caps or they may break. If you are reinstalling the smooth center cap, place it on the wheel and tap it into place until it seats flush with the wheel.

{CAUTION:

Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to an accident. Be sure to use the correct wheel nuts. If you have to replace them, be sure to get new GM original equipment wheel nuts. Stop somewhere as soon as you can and have the nuts tightened with a torque wrench to the proper torque specification. See “Capacities and Specifications” in the Index for wheel nut torque specification.

Improperly tightened wheel nuts can lead

Notice: to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque specification. See “Capacities and Specifications” in the index for the wheel nut torque specification.

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(cid:127) (cid:127) (cid:127) Storing a Flat or Spare Tire, Jack and Tools

{CAUTION:

Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place.

Notice: Storing an aluminum wheel with a flat tire under your vehicle for an extended period of time or with the valve stem pointing up may damage the wheel. Always stow the wheel with the valve stem pointing down and have the wheel/tire repaired as soon as possible.

A. Spare Tire (Valve

G. Hoist Shaft Access

Stem Pointed Down)

B. Hoist Assembly C. Hoist Cable D. Tire Retainer E. Hoist Shaft F. Hoist End of

Extension Tool

Hole

H. Wheel Wrench I. Jack Handle

Extensions J. Hoist Lock

(If Equipped)

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1. Put the tire on the

ground at the rear of the vehicle with the valve stem pointed down and toward the rear of the vehicle.

4. Insert the hoist end (F) through the hole (G) in the rear bumper and into the hoist shaft.

2. Tilt the retainer (D) downward and through the wheel opening. Make sure the retainer is fully seated across the underside of the wheel.

5. Raise the tire part way upward. Make sure the

retainer is seated in the wheel opening.

6. Raise the tire fully against the underside of the vehicle by turning the wheel wrench clockwise until you hear two clicks or feel it skip twice. You cannot overtighten the cable.

3. Attach the wheel wrench (H) and extensions (I)

together.

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To store the tools, follow these procedures: 1. Return the tools to the tool bag and place it back in

the Top-Box Storage unit.

2. Assemble the wheel blocks and bottle jack together

with the wing nut by reversing Step 2 under “Removing the Spare Tire and Tools” earlier in this section.

3. Replace the jack cover and tighten the jack-cover

wingnuts.

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(A) Push and Pull (B) Rotate or Turn

7. Make sure the tire is stored securely. Push, pull,

and then try to rotate or turn the tire. If the tire moves, use the wheel wrench to tighten the cable. Reinstall the spare tire lock (if equipped).

Secondary Latch System Your vehicle has an underbody mounted tire hoist assembly equipped with a secondary latch system. It’s designed to stop the spare tire from suddenly falling off your vehicle. For the secondary latch to work, the spare must be installed with the valve stem pointing down and toward the rear of the vehicle. See “Storing a Flat or Spare Tire, Jack and Tools” earlier in this section.

{CAUTION:

Before beginning this procedure read all the instructions. Failure to read and follow the instructions could damage the hoist assembly and you and others could get hurt. Read and follow the instructions listed below.

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To release the spare tire from the secondary latch do the following:

1. Check under the vehicle to see if the cable end is

visible.

2. If the cable is not visible proceed to Step 6.

If it is visible, first try to tighten the cable by turning the wheel wrench clockwise until you hear two clicks or feel it skip twice. You cannot overtighten the cable.

3. Loosen the cable by turning the wrench

counterclockwise three or four turns.

4. Repeat this procedure at least two times. If the

spare tire lowers to the ground, continue with Step 5 of “Removing the Spare Tire and Tools” earlier in this section.

5. Turn the wrench counterclockwise until

approximately six inches (15 cm) of cable is exposed.

6. Stand the wheel blocks on their shortest ends, with the backs facing each other.

7. Place the bottom edge of the jack on the wheel

blocks, separating them so that the jack is balanced securely.

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11. Lower the jack by turning the wheel wrench

counterclockwise. Keep lowering the jack until the spare tire slides off the jack or is hanging by the cable.

{CAUTION:

Someone standing too close during the procedure could be injured by the jack. If the spare tire does not slide off the jack completely, make sure no one is behind you or on either side of you as you pull the jack out from the spare.

12. Disconnect the jack handle from the jack and

carefully remove the jack. Use one hand to push against the spare while firmly pulling the jack out from under the spare tire with the other hand. If the spare tire is hanging from the cable, insert the hoist handle, extension and wheel wrench into the hoist shaft hole in the bumper and turn the wheel wrench counterclockwise to lower the spare the rest of the way.

8. Attach the jack handle, extension, and wheel

wrench to the jack and place it (with the wheel blocks) under the vehicle towards the front of the rear bumper. Position the center lift point of the jack under the center of the spare tire.

9. Turn the wrench clockwise to raise the jack until it

lifts the end fitting.

10. Continue raising the jack until the spare tire stops

moving upward and is held firmly in place. The secondary latch has released and the spare tire is balancing on the jack.

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13. Tilt the retainer at the end of the cable and pull it through the wheel opening. Pull the tire out from under the vehicle.

14. If the cable is hanging under the vehicle, turn the

wheel wrench clockwise to raise the cable back up.

Have the hoist assembly inspected as soon as you can. You will not be able to store a spare or flat tire using the hoist assembly until it has been replaced. To continue changing the flat tire, see “Removing the Flat Tire and Installing the Spare Tire” earlier in this section.

Spare Tire Your vehicle, when new, had a fully inflated spare tire. A spare tire may lose air over time, so check its inflation pressure regularly. See Inflation - Tire Pressure on page 5-72 and Loading Your Vehicle on page 4-54
for information regarding proper tire inflation and loading your vehicle. For instruction on how to remove, install or store a spare tire, see Changing a Flat Tire on page 5-84. After installing the spare tire on your vehicle, you should stop as soon as possible and make sure the spare is correctly inflated. Have the damaged or flat road tire repaired or replaced as soon as you can and installed back onto your vehicle. This way, a spare tire will be available in case you need it again. Your vehicle may have a different size spare tire than the road tires, those originally installed on your vehicle. This spare tire was developed for use on your vehicle, so it is all right to drive on it. If your vehicle has four-wheel drive and the smaller spare is installed, keep the vehicle in two-wheel drive mode as much as possible. If your vehicle has a spare tire that does not match your vehicle’s original road tires and wheels in size and type, do not include the spare in the tire rotation.

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Do not use any of these unless this manual says you can. In many uses, these will damage your vehicle: (cid:127) Alcohol

Laundry Soap

(cid:127) Bleach (cid:127) Reducing Agents

Cleaning the Inside of Your Vehicle Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl, leather, plastic and painted surfaces with a clean, damp cloth. Cleaning Fabric/Carpet Your dealer has cleaners for the cleaning of fabric and carpet. They will clean normal spots and stains very well. You can get GM-approved cleaning products from your dealer. See Vehicle Care/Appearance Materials on page 5-111.

Appearance Care Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flames if you strike a match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anything from a container to clean your vehicle, be sure to follow the manufacturer’s warnings and instructions. And always open your doors or windows when you are cleaning the inside. Never use these to clean your vehicle: (cid:127) Gasoline (cid:127) Benzene (cid:127) Naphtha (cid:127) Carbon Tetrachloride (cid:127) Acetone (cid:127) Paint Thinner

Turpentine Lacquer Thinner

(cid:127) Nail Polish Remover They can all be hazardous — some more than others — and they can all damage your vehicle, too.

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(cid:127) (cid:127) (cid:127) Here are some cleaning tips: (cid:127) Always read the instructions on the cleaner label. (cid:127) Clean up stains as soon as you can — before

they set.

(cid:127) Carefully scrape off any excess stain. (cid:127) Use 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 fabric after spot cleaning, clean the entire area immediately or it will set.

Using Cleaner on Fabric 1. Vacuum and brush the area to remove any

loose dirt.

2. Always clean a whole trim panel or section. Mask

surrounding trim along stitch or welt lines.

3. Follow the directions on the container label. 4. Apply cleaner with a clean sponge. Do not saturate

the material and do not rub it roughly.

5. As soon as you have cleaned the section, use a

sponge to remove any excess cleaner.

6. Wipe cleaned area with a clean, water-dampened

towel or cloth.

7. Wipe with a clean cloth and let dry.

Special Fabric Cleaning Problems Stains caused by such things as catsup, coffee (black), egg, fruit, fruit juice, milk, soft drinks, vomit, urine and blood can be removed as follows: 1. Carefully scrape off excess stain, then sponge the

soiled area with cool water.

2. If a stain remains, follow the cleaning instructions

described earlier.

3. If an odor lingers after cleaning vomit or urine, treat

the area with a water and baking soda solution: 1 teaspoon (5 ml) of baking soda to 1 cup (250 ml) of lukewarm water.

4. Let dry. Stains caused by candy, ice cream, mayonnaise, chili sauce and unknown stains can be removed as follows: 1. Carefully scrape off excess stain. 2. Clean with cool water and allow to dry completely. 3. If a stain remains, follow the cleaner instructions

described earlier.

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(cid:127) Cleaning Vinyl Use warm water and a clean cloth. (cid:127) Rub with a clean, damp cloth to remove dirt. You

may have to do this more than once. Things like tar, asphalt and shoe polish will stain if you do not get them off quickly. Use a clean cloth and vinyl cleaner. See your dealer for this product.

Cleaning Leather Use a soft cloth with lukewarm water and a mild soap or saddle soap and wipe dry with a soft cloth. Then, let the leather dry naturally. Do not use heat to dry.

For stubborn stains, use a leather cleaner.

(cid:127) Never use oils, varnishes, solvent-based or abrasive cleaners, furniture polish or shoe polish on leather.

(cid:127) Soiled or stained leather should be cleaned

immediately. If dirt is allowed to work into the finish, it can harm the leather.

Cleaning the Top of the Instrument Panel Use only mild soap and water to clean the top surfaces of the instrument panel. Sprays containing silicones or waxes may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions. Cleaning Interior Plastic Components Use only a mild soap and water solution on a soft cloth or sponge. Commercial cleaners may affect the surface finish. Cleaning Glass Surfaces Glass should be cleaned often. GM Glass Cleaner or a liquid household glass cleaner will remove normal tobacco smoke and dust films on interior glass. See Vehicle Care/Appearance Materials on page 5-111. Notice: glass surfaces on your vehicle, you could scratch the glass and/or cause damage to the rear window defogger and the integrated radio antenna. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner.

If you use abrasive cleaners when cleaning

5-106

(cid:127) (cid:127) Care of Safety Belts Keep belts clean and dry.

{CAUTION:

Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water.

Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth at least every six months. During very cold, damp weather more frequent application may be required. See Recommended Fluids and Lubricants on page 6-13.

Cleaning the Outside of Your Vehicle The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. Washing Your Vehicle The best way to preserve your vehicle’s finish is to keep it clean by washing it often with lukewarm or cold water. Don’t wash your vehicle in the direct rays of the sun. Use a car washing soap. Don’t use strong soaps or chemical detergents. Be sure to rinse the vehicle well, removing all soap residue completely. You can get GM-approved cleaning products from your dealer. See Vehicle Care/Appearance Materials on page 5-111. Don’t use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be flushed promptly and not allowed to dry on the surface, or they could stain. Dry the finish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting. High pressure car washes may cause water to enter your vehicle.

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Cleaning Exterior Lamps/Lenses Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under “Washing Your Vehicle.” Finish Care Occasional waxing or mild polishing of your vehicle by hand may be necessary to remove residue from the paint finish. You can get GM-approved cleaning products from your dealer. See Vehicle Care/Appearance Materials on page 5-111. If your vehicle has a “basecoat/clearcoat” paint finish. The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint finish. Notice: Machine compounding or aggressive polishing on a basecoat/clearcoat paint finish may damage it. Use only non-abrasive waxes and polishes that are made for a basecoat/clearcoat paint finish on your vehicle.

Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage your vehicle’s finish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint finish looking new by keeping your vehicle garaged or covered whenever possible. Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned regularly to keep their luster. Washing with water is all that is usually needed. However, you may use chrome polish on chrome or stainless steel trim, if necessary. Use special care with aluminum trim. To avoid damaging protective trim, never use auto or chrome polish, steam or caustic soap to clean aluminum. A coating of wax, rubbed to high polish, is recommended for all bright metal parts.

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Windshield and Wiper Blades If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax, sap or other material may be on the blade or windshield. Clean the outside of the windshield with a full-strength glass cleaning liquid. The windshield is clean if beads do not form when you rinse it with water. Grime from the windshield will stick to the wiper blades and affect their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Check the wiper blades and clean them as necessary; replace blades that look worn. Aluminum or Chrome-Plated Wheels Your vehicle may be equipped with either aluminum or chrome-plated wheels. Keep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied.

The surface of these wheels is similar to the painted surface of your vehicle. Don’t use strong soaps, chemicals, abrasive polishes, abrasive cleaners, cleaners with acid, or abrasive cleaning brushes on them because you could damage the surface. Do not use chrome polish on aluminum wheels. Use chrome polish only on chrome-plated wheels, but avoid any painted surface of the wheel, and buff off immediately after application. Don’t take your vehicle through an automatic car wash that has silicone carbide tire cleaning brushes. These brushes can also damage the surface of these wheels. Tires To clean your tires, use a stiff brush with tire cleaner. Notice: Using petroleum-based tire dressing products on your vehicle may damage the paint finish and/or tires. When applying a tire dressing, always wipe off any overspray from all painted surfaces on your vehicle.

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At least every spring, flush these materials from the underbody with plain water. Clean any areas where mud and debris can collect. Dirt packed in close areas of the frame should be loosened before being flushed. Your dealer or an underbody car washing system can do this for you.

Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on your vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, GM will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs first.

Sheet Metal Damage If your vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection. Original manufacturer replacement parts will provide the corrosion protection while maintaining the warranty.

Finish Damage Any stone chips, fractures or deep scratches in the finish should be repaired right away. Bare metal will corrode quickly and may develop into major repair expense. Minor chips and scratches can be repaired with touch-up materials avaliable from your dealer. Larger areas of finish damage can be corrected in your dealer’s body and paint shop.

Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, corrosion and rust can develop on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection.

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Vehicle Care/Appearance Materials See your GM dealer for more information on purchasing the following products.

Vehicle Care/Appearance Materials

(cont’d)

Description

Usage

Vehicle Care/Appearance Materials

Chrome and Wire Wheel Cleaner

Description

Polishing Cloth Wax-Treated Tar and Road Oil Remover Chrome Cleaner and Polish White Sidewall Tire Cleaner

Vinyl Cleaner

Glass Cleaner

Usage

Interior and exterior polishing cloth. Removes tar, road oil and asphalt. Use on chrome or stainless steel. Removes soil and black marks from whitewalls. Cleans vinyl tops, upholstery and convertible tops. Removes dirt, grime, smoke and fingerprints.

Finish Enhancer

Swirl Remover Polish

Cleaner Wax

Foaming Tire Shine Low Gloss

Removes dirt and grime from chrome wheels and wire wheel covers. Removes dust, fingerprints, and surface contaminants. Spray on wipe off. Removes swirl marks, fine scratches and other light surface contamination. Removes light scratches and protects finish. Cleans, shines and protects in one easy step, no wiping necessary.

5-111

Vehicle Care/Appearance Materials

(cont’d)

Vehicle Identification

Description

Wash Wax Concentrate

Spot Lifter

Odor Eliminator

Usage Medium foaming shampoo. Cleans and lightly waxes. Biodegradable and phosphate free. Quickly and easily removes spots and stains from carpets, vinyl and cloth upholstery. Odorless spray odor eliminator used on fabrics, vinyl, leather and carpet.

See your General Motors parts department for these products. See Recommended Fluids and Lubricants on page 6-13.

Vehicle Identification Number (VIN)

This is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver’s side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Parts labels and the certificates of title and registration. Engine Identification The 8th character in your VIN is the engine code. This code will help you identify your engine, specifications and replacement parts.

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Windshield Wiper Fuses The windshield wiper motor is protected by an internal circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. If the overload is caused by some electrical problem and not snow, etc., be sure to get it fixed.

Power Windows and Other Power Options Circuit breakers protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed or goes away.

Service Parts Identification Label You’ll find this label located in the glove box. It’s very helpful if you ever need to order parts. On this label is:

your VIN, the model designation, paint information and a list of all production options and special equipment.

Be sure that this label is not removed from the vehicle. Electrical System Notice: Don’t add anything electrical to your vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage wouldn’t be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Your vehicle has an air bag system. Before attempting to add anything to your vehicle, see Servicing Your Air Bag-Equipped Vehicle on page 1-64.

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(cid:127) (cid:127) (cid:127) (cid:127) Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. If you ever have a problem on the road and don’t have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without – like the radio or cigarette lighter – and use its fuse, if it is the correct amperage. Replace it as soon as you can.

Instrument Panel Fuse Block

The fuse block access door is on the driver’s side edge of the instrument panel. Pull off the cover to access the fuse block.

To remove fuses if you don’t have a fuse extractor, hold the end of the fuse between your thumb and index finger and pull straight out. You may have spare fuses located behind the fuse block access door. These can be used to replace a bad fuse. However, make sure it is of the correct amperage.

5-114

Fuses

LOCK

HVAC 1

L DOOR

CRUISE

UNLOCK

RR FOG LP BRAKE

DRIVER UNLOCK

IGN 0
TBC IGN 0

VEH CHMSL

LT TRLR ST/TRN

LT TRN

VEH STOP

Body RT TRLR ST/TRN

Usage Power Door Lock Relay (Lock Function) Inside Rearview Mirror, Climate Control System Driver’s Door Harness Connection Cruise Control Power Door Lock Relay (Unlock Function) Rear Fog Lamp (Export Only) Anti-Lock Brake System Power Door Lock Relay (Driver’s Door Unlock Function) PCM, TCM Truck Body Controller Vehicle and Trailer High Mounted Stoplamp Left Turn Signal/Stop Trailer Left Turn Signals and Sidemarkers Vehicle Stoplamps, Brake Module, Electronic Throttle Control Module Harness Connector Right Turn Signal/Stop Trailer

5-115

Fuses RR Wiper

SEO ACCY

WS WPR

TBC ACCY

IGN 3
4WD HTR A/C

Usage Rear Window Wiper Switch Special Equipment Option Accessory Windshield Wipers Truck Body Controller Accessory Ignition, Heated Seats Four-Wheel Drive System Climate Control System

Fuses

RT TRN

DDM

AUX PWR 2

LOCKS

ECC

TBC 2C FLASH

CB LT DOORS

TBC 2B TBC 2A

Usage Right Turn Signals and Sidemarkers Driver Door Module Rear Cargo Area Power Outlets Power Door Lock System Rear Electronic Climate Control, Liftgate Truck Body Controller Flasher Module Left Power Window Circuit Breaker Truck Body Controller Truck Body Controller

5-116

Center Instrument Panel Fuse Block The center instrument panel utility block is located underneath the instrument panel, to the left of the steering column.

Device SEO TRAILER UPFIT

SL RIDE

HDLR 2
BODY DEFOG

Usage Special Equipment Option Trailer Brake Wiring Upfitter (Not Used) Ride Control Harness Connection Headliner Wiring Connector Body Wiring Connector Rear Defogger Relay

Underhood Fuse Block

Device HDLNR 1
SPARE RELAY

CB SEAT

CB RT DOOR

SPARE

INFO

Usage Headliner Wiring Connector 1
Not Used Driver and Passenger Seat Module Circuit Breaker Right Power Window Circuit Breaker Not Used Infotainment Harness Connection

The underhood fuse block in the engine compartment on the driver’s side of the vehicle near the battery. Lift the cover for access to the fuse/relay block. To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out. See Engine Compartment Overview on page 5-12 for more information on its location.

5-117

5-118

*1 — Gasoline Engine and Fuel Injection Rail #2. *2 — Gasoline Engine and Fuel Injection Rail #1. *3 — Gasoline Engine; Oxygen Sensors. *4 — Gasoline Engine; Oxygen Sensors. *5 — PCM Ignition Fuses GLOW PLUG CUST FEED STUD #1

Usage Not Used Accessory Power Auxiliary Power Mid Bussed Electrical Center Power Feed, Front Seats, Right Doors Front Climate Control Fan Left Bussed Electrical Center, Door Modules, Door Locks, Auxiliary Power Outlet—Rear Cargo Area and Instrument Panel Accessory Power/Trailer Wiring Brake Feed Anti-Lock Brakes Vehicle Stability Ignition Power Ignition Power

MBEC

BLOWER

LBEC

STUD 2

ABS VSES/ECAS IGN A IGN B

Fuses

LBEC 1

TRL PARK

RR PARK

LR PARK

PARK LP STARTER INTPARK STOP LP

TBC BATT

SUNROOF SEO B2

4WS

RR HVAC

AUX PWR

Usage Left Bussed Electrical Center, Left Doors, Truck Body Controller, Flasher Module Parking Lamps Trailer Wiring Right Rear Parking and Sidemarker Lamps Left Rear Parking and Sidemarker Lamps Parking Lamps Relay Starter Relay Interior Lamps Stoplamps Truck Body Controller Battery Feed Sunroof Off-Road Lamps Vent Solenoid Canister/Quadrasteer Module Power Rear Climate Control Auxiliary Power Outlet — Console

5-119

Usage Ignition Relay Powertrain Control Module Electronic Throttle Control, Electronic Brake Controller Ignition Coil, Fuel Injectors--Bank 1
Ignition Coil, Fuel Injectors--Bank 2
Instrument Panel Cluster, Air Conditioning Relay, Turn Signal/Hazard Switch, Starter Relay Ride Control Backup Lamps Trailer Wiring Powertrain Control Module, Fuel Pump Fuel Pump (Relay) Oxygen Sensors Back-up Lamps, Automatic Transmission Shift Lock Control System Rear Window Defogger

Fuses HDLP-HI PRIME O2B

SIR

FRT PARK

DRL

SEO IGN TBC IGN1
HI HDLP-LT

LH HID

DRL

IPC/DIC

HVAC/ECAS CIG LTR HI HDLP-RT

Usage Headlamp High Beam Relay Not Used Oxygen Sensors Supplemental Inflatable Restraint System Front Parking Lamps, Sidemarker Lamps Daytime Running Lamps (Relay) Rear Defog Relay Truck Body Controller Ignition High Beam Headlamp-Left Left Hand High Intensity Discharge Lamps Daytime Running Lamps Instrument Panel Cluster/Driver Information Center Climate Control Controller Cigarette Lighter High Beam Headlamp-Right

Fuses IGN 1
PCM 1

ETC/ECM

INJ 1

INJ 2

IGN E

RTD TRL B/U

PCM B

F/PMP O2A

B/U LP

RR DEFOG

5-120

Fuses HDLP-LOW

A/C COMP

A/C COMP RR WPR RADIO

SEO B1

LO HDLP-LT

BTSI

CRANK LO HDLP-RT FOG LP

Usage Headlamp Low Beam Relay Air Conditioning Compressor Relay Air Conditioning Compressor Rear Wiper/Washer Audio System Mid Bussed Electrical Center, HomeLink, Rear Heated Seats Headlamp Low Beam-Left Brake Transmission Shift Interlock System Starting System Headlamp Low Beam-Right Fog Lamp Relay

Fuses FOG LP HORN

W/S WASH

W/S WASH

INFO

RADIO AMP

RH HID

HORN EAP TREC SBA

Usage Fog Lamps Horn Relay Windshield and Rear Window Washer Pump Relay Windshield and Rear Window Washer Pump OnStar/Rear Seat Entertainment Radio Amplifier Right Hand High Intensity Discharge Lamp Horn Fuse Electric Adjustable Pedals All-Wheel Drive Module Supplemental Brake Assist

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Capacities and Specifications Please refer to Recommended Fluids and Lubricants on page 6-13 for more information. All capacities are approximate.

Engine

VORTEC™ 5300 V8
VORTEC™ 8100 V8

Engine Specifications VIN Code

Transmission

Automatic Automatic Capacities and Specifications

Spark Plug Gap

0.040 INCHES (1.01 MM) 0.060 INCHES (1.52 MM)

Application

Capacities

English

After refill, the level must be rechecked. See Cooling System on page 5-32. Engine Cooling System

14.0 quarts 21.0 quarts

VORTEC™ 5300 V8
VORTEC™ 8100 V8

Metric

13.6 L 20.0 L

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Capacities and Specifications (cont’d)

Application

Capacities

English

Metric

After refill, the level must be rechecked. Add enough engine oil so that the fluid is within the proper operating range. See Engine Oil on page 5-16. Engine Oil with Filter

6.0 quarts 6.5 quarts

5.7 L 6.1 L

VORTEC™ 5300 V8 (VIN Code T) VORTEC™ 8100 V8 (VIN Code G)

Fuel Tank Capacity

1500
2500

Air Conditioning Refrigerat R-134a

Model

C/K 1500
C/K 2500

31.0 gallons 37.5 gallons

1.6 lbs.

117.0 L 142.0 L

0.7 kg

Wheels and Tires

Description

6 bolts (14 mm) 8 bolts (14 mm)

Torque

140 lb ft (190 Y) 140 lb ft (190 Y)

Tire Pressure: See the Certification/Tire label on the rear edge of the driver’s door.

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✍ NOTES

5-124

Section 6

Maintenance Schedule

Maintenance Schedule ......................................6-2
Introduction ...................................................6-2
Maintenance Requirements ..............................6-2
Your Vehicle and the Environment ....................6-2
Using Your Maintenance Schedule ....................6-3
Scheduled Maintenance ...................................6-4
Additional Required Services ............................6-6
Maintenance Footnotes ...................................6-8

Owner Checks and Services ............................6-9
At Each Fuel Fill ............................................6-9
At Least Once a Month .................................6-10
At Least Once a Year ...................................6-10
Recommended Fluids and Lubricants ...............6-13
Normal Maintenance Replacement Parts ..........6-15
Maintenance Record .....................................6-16

6-1

Maintenance Schedule

Introduction Important: Keep engine oil at the proper level and change as recommended.

Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner Assistance booklet or your dealer for details.

Maintenance Requirements Notice: Maintenance intervals, checks, inspections, replacement parts and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition. Any damage caused by failure to follow scheduled maintenance may not be covered by warranty.

Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. All recommended maintenance is important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle. To help protect our environment, and to keep your vehicle in good condition, be sure to maintain your vehicle properly.

6-2

Using Your Maintenance Schedule We at General Motors want to help you keep your vehicle in good working condition. But we do not know exactly how you will drive it. You may drive very short distances only a few times a week. Or you may drive long distances all the time in very hot, dusty weather. You may use your vehicle in making deliveries. Or you may drive it to work, to do errands or in many other ways. Because of all the different ways people use their vehicles, maintenance needs vary. You may need more frequent checks and replacements. So please read the following and note how you drive. If you have any questions on how to keep your vehicle in good condition, see your GM Goodwrench dealer. This schedule is for vehicles that:

carry passengers and cargo within recommended limits. You will find these limits on the tire and loading information label. See Loading Your Vehicle on page 4-54. are driven on reasonable road surfaces within legal driving limits.

are driven off-road in the recommended manner. See Off-Road Driving with Your Four-Wheel-Drive Vehicle on page 4-19. use the recommended fuel. See Gasoline Octane on page 5-4.

The services in Scheduled Maintenance on page 6-4
should be performed when indicated. See Additional Required Services on page 6-6 and Maintenance Footnotes on page 6-8 for further information.

{CAUTION:

Performing maintenance work on a vehicle can be dangerous. In trying to do some jobs, you can be seriously injured. Do your own maintenance work only if you have the required know-how and the proper tools and equipment for the job. If you have any doubt, see your GM Goodwrench dealer to have a qualified technician do the work.

6-3

(cid:127) (cid:127) (cid:127) (cid:127) Some maintenance services can be complex. So, unless you are technically qualified and have the necessary equipment, you should have your GM Goodwrench dealer do these jobs. When you go to your GM Goodwrench dealer for your service needs, you will know that GM-trained and supported service technicians will perform the work using genuine GM parts. If you want to get service information, see Service Publications Ordering Information on page 7-11. Owner Checks and Services on page 6-9 tells you what should be checked, when to check it and what you can easily do to help keep your vehicle in good condition. The proper replacement parts, fluids and lubricants to use are listed in Recommended Fluids and Lubricants on page 6-13 and Normal Maintenance Replacement Parts on page 6-15. When your vehicle is serviced, make sure these are used. All parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. We recommend the use of genuine GM parts.

6-4

Scheduled Maintenance When the CHANGE ENGINE OIL message comes on, it means that service is required for your vehicle. Have your vehicle serviced as soon as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best conditions, the engine oil life system may not indicate that vehicle service is necessary for over a year. However, your engine oil and filter must be changed at least once a year and at this time the system must be reset. Your GM Goodwrench dealer has GM-trained service technicians who will perform this work using genuine GM parts and reset the system. If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5 000 km) since your last service. Remember to reset the oil life system whenever the oil is changed. See Engine Oil on page 5-16 for information on the Engine Oil Life System and resetting the system. When the CHANGE ENGINE OIL message appears, certain services, checks and inspections are required. Required services are described in the following for “Maintenance I” and “Maintenance II.” Generally, it is recommended that your first service be Maintenance I, your second service be Maintenance II and that you alternate Maintenance I and Maintenance II thereafter. However, in some cases, Maintenance II may be required more often.

Maintenance I — Use Maintenance I if the CHANGE ENGINE OIL message comes on within ten months since vehicle was purchased or Maintenance II was performed.

Maintenance II — Use Maintenance II if the previous service performed was Maintenance I. Always use Maintenance II whenever the message comes on ten months or more since the last service or if the message has not come on at all for one year.

Scheduled Maintenance