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Pressure on page 5-62 and Loading Your Vehicle on page 4-42. Reset the Tire Pressure Monitor System. See Tire Pressure Monitor Operation on page 5-65. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications on page 5-107.
{CAUTION:
Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after 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 needed, to get all the rust or dirt off. See Changing a Flat Tire on page 5-79.
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When It Is Time for New Tires Various factors, such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions, influence when you need new tires.
One way to tell when it is time for new tires is to check the treadwear indicators, which 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 new tires if any of the following statements are true: (cid:129) You can see the indicators at three or more places
around the tire.
(cid:129) 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 cannot be repaired well because of the size or location of the damage.
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(cid:129) (cid:129) (cid:129) The rubber in tires degrades over time, even if they are not being used. This is also true for the spare tire, if your vehicle has one. Multiple conditions affect how fast this aging takes place, including temperatures, loading conditions, and inflation pressure maintenance. With proper care and maintenance tires will typically wear out before they degrade due to age. If you are unsure about the need to replace your tires as they get older, consult the tire manufacturer for more information. Buying New Tires GM has developed and matched specific tires for your vehicle. The original equipment tires installed on your vehicle, when it was new, were designed to meet General Motors Tire Performance Criteria Specification (TPC spec) system rating. If you need replacement tires, GM strongly recommends that you get tires with the same TPC Spec rating.
This way, your vehicle will continue to have tires that are designed to give the same performance and vehicle safety, during normal use, as the original tires. GM’s exclusive TPC Spec system considers over a dozen critical specifications that impact the overall performance of your vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM’s TPC Spec number is molded onto the tire’s sidewall near the tire size. If the tires have an all-season tread design, the TPC spec number will be followed by a MS, for mud and snow. See Tire Sidewall Labeling on page 5-55 for additional information. GM recommends replacing tires in sets of four. This is because uniform tread depth on all tires will help keep your vehicle performing most like it did when the tires were new.
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Replacing less than a full set of tires can affect the braking and handling performance of your vehicle. See Tire Inspection and Rotation on page 5-68 for information on proper tire rotation.
{CAUTION:
Mixing tires could cause you to lose control while driving. If you mix tires of different sizes, brands, or types (radial and bias-belted tires) the vehicle may not handle properly, and you could have a crash. Using tires of different sizes, brands, or types may also cause damage to your vehicle. Be sure to use the correct size, brand, and type of tires on your vehicle’s wheels.
{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.
If you must replace your vehicle’s tires with those that do not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction type (radial and bias-belted tires) as your vehicle’s original tires. Vehicles equipped with a tire pressure monitoring system may give an inaccurate low-pressure warning if non-TPC spec rated tires are installed on your vehicle. Non-TPC Spec rated tires may give a low-pressure warning that is higher or lower than the proper warning level you would get with TPC Spec rated tires. See Tire Pressure Monitor System on page 5-63.
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Your vehicle’s original equipment tires are listed on the Tire and Loading Information Label. See Loading Your Vehicle on page 4-42, for more information about the Tire and Loading Information Label and its location on your vehicle.
Different Size Tires and Wheels If you add wheels or tires that are a different size than your original equipment wheels and tires, this could affect the way your vehicle performs, including its braking, ride and handling characteristics, stability, and resistance to rollover. Additionally, if your vehicle has electronic systems such as anti-lock brakes, rollover airbags, traction control, and electronic stability control, the performance of these systems can be affected.
{CAUTION:
If you add different sized wheels, your vehicle may not provide an acceptable level of performance and safety if tires not recommended for those wheels are selected. You may increase the chance that you will crash and suffer serious injury. Only use GM specific wheel and tire systems developed for your vehicle, and have them properly installed by a GM certified technician.
See Buying New Tires on page 5-71 and Accessories and Modifications on page 5-3 for additional information.
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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 (NHTSA), 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 (UTQG) 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. 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.
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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 tires and wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Adjustments to wheel alignment and tire balancing will not be necessary on a regular basis. However, if you notice unusual tire wear or your vehicle pulling to one side or the other, the alignment might need to be checked. If you notice your vehicle vibrating when driving on a smooth road, the tires and wheels might need to be rebalanced. See your dealer/retailer for proper diagnosis.
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/retailer if any of these conditions exist. Your dealer/retailer 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, wheel nuts, or Tire Pressure Monitor System (TPMS) sensors, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts, wheel nuts, and TPMS sensors 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 5-79 for more information. Used Replacement Wheels
{CAUTION:
{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.
Putting a used wheel on your vehicle is dangerous. You cannot know how it has been used or how far it has 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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Tire Chains
{CAUTION:
If your vehicle has LT285/75R16 or P265/65R18
size tires, do not use tire chains. They can damage your vehicle because there is 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’sCAUTION:
(Continued)
CAUTION:
(Continued)
instructions. To help avoid damage to your vehicle, drive slowly, readjust, or remove the device if it is contacting your vehicle, and do not spin your vehicle’s wheels. If you do find traction devices that will fit, install them on the rear tires.
Notice: If your vehicle has a tire size other than LT285/75R16 or P265/65R18 use tire 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. Do not 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.
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If a Tire Goes Flat It is unusual for a tire to blowout while you are driving, especially if you maintain your vehicle’s tires properly. If air goes out of a tire, it is 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 creates 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 would 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 the jacking equipment to change a flat tire safely.
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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)
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.
To be even more certain the vehicle will not move, put 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.
When you have a flat tire, you will first need to set up the wheel blocks before changing it. They are located in the tool bag, in the swing-gate. See Removing the Spare Tire and Tools on page 5-81 for more information.
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To use the wheel blocks, lift the wheel block and lock into place.
Then, use the following as a guide to assist you in the placement of the wheel blocks.
The following information will tell you next how to use the jack and change a tire.
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Removing the Spare Tire and Tools The equipment you will need is located in the swing-gate, behind a cover. To remove the equipment: 1. Open the swing-gate. See Swing-gate on
page 2-10 for more information.
2. Remove the cover, located on the inside of the
swing-gate, by lifting the two latches.
5. Undo the straps that secure the jack tool bag to
the jack.
6. Open the tool bag and you will find the following tools, which you will use to remove the spare tire and flat tire:
3. Turn the wing nut counterclockwise to release the
jack tool bag and jack.
4. Remove the tool bag and jack from its compartment.
A. Wheel Wrench B. Jack Handle
Extensions
C. Jack Handle D. Jack E. Wheel Blocks
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The spare tire is attached to the outside of the swing-gate. To remove the spare tire:
Notice: Opening the endgate before completely closing and latching the spare tire cover may result in damage to your vehicle. Close and latch the spare tire cover before opening the endgate to avoid possible damage.
2. Remove the center cap, if equipped, by placing the flat end of the wheel wrench in the slot on the wheel and gently pry the center cap out.
1. If your vehicle has a spare tire cover release the latch by pulling the latch straight back and turning it away from the cover at the same time.
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3. Use the wheel wrench
to remove the wheel nuts securing the spare tire.
Removing the Flat Tire and Installing the Spare Tire 1. Do a safety check before proceeding. See Changing
a Flat Tire on page 5-79 for more information.
2. Remove the center cap by placing the flat end of the wheel wrench in the slot on the wheel and gently pry the center cap out.
If your vehicle has locking lug nuts, the key is supplied in the tool bag. Use the key along with the wheel wrench to remove the wheel nuts from the tire.
4. Pull off and gently lower the spare tire to the
ground. Set it next to the flat tire. In order to remove the spare tire, you may need someone to assist you.
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3. Turn the wheel wrench
counterclockwise to loosen the wheel nuts. Do not remove them yet.
If your vehicle has locking lug nuts, the key is supplied in the tool bag. Use the key along with the wheel wrench to remove the wheel nuts from the tire. Now jack up the vehicle.
Jacking Locations (Overall View)
A. Front Position - Lower Control Arm B. Rear Position - Lower Axle
4. Locate the vehicle’s jacking positions (A and B).
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5. Assemble the jack and tools as follows:
Rear Positions
Refer to the graphic above to locate the placement of the jack if the flat tire is on the rear of the vehicle.
Front Position
Front Tire Flat: If the flat tire is on a front tire of the vehicle, you will need to use the jack handle and both jack handle extensions. Attach the wheel wrench to the jack handle extensions. Attach the jack handle to the jack. From the front of the vehicle position the jack on the front lower control arm along the bar that runs front to back. 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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6. Turn the wheel wrench clockwise to raise the jack
head to the lifting point.
{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.
Rear Tire Flat: You will need to use the jack handle and both jack handle extensions. Attach the wheel wrench to the jack extensions. Attach the jack handle to the jack. From the rear of the vehicle align the jack under the rear axle. 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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7. Remove all the wheel nuts and take off the flat tire.
8. Remove any rust or dirt
from the wheel bolts, mounting surfaces and spare wheel.
{CAUTION:
Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after 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 needed, to get all the rust or dirt off. See Changing a Flat Tire on page 5-79.
{CAUTION:
Never use oil or grease on studs or nuts. Because the nuts might come loose. The vehicle’s wheel could fall off, causing a crash.
9. Put the spare tire on the mounting surface. 10. Put the wheel nuts back on with the rounded end of the nuts toward the wheel after mounting the spare.
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11. Tighten each wheel nut by hand. Then use the wheel wrench to tighten the nuts until the wheel is held against the hub.
12. Turn the wheel wrench counterclockwise to lower
the vehicle. Lower the jack completely.
{CAUTION:
Incorrect or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to a crash. If you have to replace them, be sure to get new 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 on page 5-107 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 on page 5-107 for the wheel nut torque specification.
13. Tighten the nuts firmly
in a crisscross sequence as shown by turning the wheel wrench clockwise.
14. After installing the wheel and tire, you must reinstall the center cap. Place the cap on the wheel and tap it into place until it sits flush with the wheel.
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Storing a Flat or Spare Tire and Tools
{CAUTION:
{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.
To store the flat or spare tire on the spare tire mount: 1. Slide the flat or spare tire onto the swing-gate. In order to store the flat or the spare tire, you may need someone to assist you.
2. Reinstall the nuts to retain the flat or spare tire. 3. Tighten the nuts by hand.
Incorrect or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to a crash. If you have to replace them, be sure to get new 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 on page 5-107 for wheel nut torque specification.
4. Use the wheel wrench
to tighten the nuts firmly. Try to move the tire back and forth slightly to be sure it is secure.
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5. Reinstall the center tire cover onto the spare or
flat tire.
6. If your vehicle has a spare tire cover close the
cover and latch the side latch. To store the jack tool bag and jack: 1. Return the tools to the jack tool bag.
4. Reinstall the wing nut retainer to fasten the jack
and tool bag in the storage compartment. Make sure that the wing nut passes through the tool bag and the jack before you tighten it.
5. Turn the wing nut retainer clockwise to secure. 6. Reinstall the compartment cover by inserting
the locator tabs in the holes in the swing-gate. Push the latches down to secure.
2. Secure the tool bag to the jack by securely wrapping
the straps around the jack. Then, slide the straps through the rings on the bag and secure. 3. Position the jack and jack tool bag in the
swing-gate. When reinstalling the jack and jack tool bag, make sure the jack base is securely seated behind the tabs in the swing-gate.
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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 5-62 and Loading Your Vehicle on page 4-42
for information regarding proper tire inflation and loading your vehicle. For instruction on how to remove, install or store a spare tire, see Removing the Flat Tire and Installing the Spare Tire on page 5-83 and Storing a Flat or Spare Tire and Tools on page 5-89. After installing the spare tire on your vehicle, you should stop as soon as possible and make sure the spare is correctly inflated. The spare tire is made to perform well at speeds up to 70 mph (112 km/h) at the recommended inflation pressure, so you can finish your trip. 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. Do not mix tires and wheels of different sizes, because they will not fit. Keep your spare tire and its wheel together.Appearance Care
Interior Cleaning Your vehicle’s interior will continue to look its best if it is cleaned often. Although not always visible, dust and dirt can accumulate on your upholstery. Dirt can damage carpet, fabric, leather, and plastic surfaces. Regular vacuuming is recommended to remove particles from your upholstery. It is important to keep your upholstery from becoming and remaining heavily soiled. Soils should be removed as quickly as possible. Your vehicle’s interior may experience extremes of heat that could cause stains to set rapidly. Lighter colored interiors may require more frequent cleaning. Use care because newspapers and garments that transfer color to your home furnishings may also transfer color to your vehicle’s interior.
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If you use abrasive cleaners when cleaning
When cleaning your vehicle’s interior, only use cleaners specifically designed for the surfaces being cleaned. Permanent damage may result from using cleaners on surfaces for which they were not intended. Use glass cleaner only on glass. Remove any accidental over-spray from other surfaces immediately. To prevent over-spray, apply cleaner directly to the cleaning cloth. Notice: glass surfaces on your vehicle, you could scratch the glass and/or cause damage to the rear window defogger. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner. Many cleaners contain solvents that may become concentrated in your vehicle’s breathing space. Before using cleaners, read and adhere to all safety instructions on the label. While cleaning your vehicle’s interior, maintain adequate ventilation by opening your vehicle’s doors and windows. Dust may be removed from small buttons and knobs using a small brush with soft bristles. Your dealer/retailer has a product for cleaning your vehicle’s glass. Should it become necessary, you can also obtain a product from your dealer/retailer to remove odors from your vehicle’s upholstery.
Do not clean your vehicle using the following cleaners or techniques: (cid:129) Never use a knife or any other sharp object to
remove a soil from any interior surface.
(cid:129) Never use a stiff brush. It can cause damage to
your vehicle’s interior surfaces.
(cid:129) Never apply heavy pressure or rub aggressively
with a cleaning cloth. Use of heavy pressure can damage your interior and does not improve the effectiveness of soil removal.
(cid:129) Use only mild, neutral-pH soaps. Avoid laundry
detergents or dishwashing soaps with degreasers. Using too much soap will leave a residue that leaves streaks and attracts dirt. For liquid cleaners, about 20 drops per gallon (3.78 L) of water is a good guide.
(cid:129) Do not heavily saturate your upholstery while
cleaning.
(cid:129) Damage to your vehicle’s interior may result from the use of many organic solvents such as naptha, alcohol, etc.
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Fabric/Carpet Use a vacuum cleaner with a soft brush attachment frequently to remove dust and loose dirt. A canister vacuum with a beater bar in the nozzle may only be used on floor carpet and carpeted floor mats. For soils, always try to remove them first with plain water or club soda. Before cleaning, gently remove as much of the soil as possible using one of the following techniques:
For liquids: gently blot the remaining soil with a paper towel. Allow the soil to absorb into the paper towel until no more can be removed. For solid dry soils: remove as much as possible and then vacuum.
To clean, use the following instructions: 1. Saturate a lint-free, clean white cloth with water or
club soda.
2. Wring the cloth to remove excess moisture. 3. Start on the outside edge of the soil and gently rub toward the center. Continue cleaning, using a clean area of the cloth each time it becomes soiled. 4. Continue to gently rub the soiled area until the
cleaning cloth remains clean.
5. If the soil is not completely removed, use a mild
soap solution and repeat the cleaning process that was used with plain water.
If any of the soil remains, a commercial fabric cleaner or spot lifter may be necessary. When a commercial upholstery cleaner or spot lifter is to be used, test a small hidden area for colorfastness first. If the locally cleaned area gives any impression that a ring formation may result, clean the entire surface. After the cleaning process has been completed, a paper towel can be used to blot excess moisture from the fabric or carpet.
Leather A soft cloth dampened with water can be used to remove dust. If a more thorough cleaning is necessary, a soft cloth dampened with a mild soap solution can be used. Allow the leather to dry naturally. Do not use heat to dry. Never use steam to clean leather. Never use spot lifters or spot removers on leather. Many commercial leather cleaners and coatings that are sold to preserve and protect leather may permanently change the appearance and feel of your leather and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Never use shoe polish on leather.
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(cid:129) (cid:129) Instrument Panel, Vinyl, and Other Plastic Surfaces A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is necessary, a clean soft cloth dampened with a mild soap solution can be used to gently remove dust and dirt. Never use spot lifters or removers on plastic surfaces. Many commercial cleaners and coatings that are sold to preserve and protect soft plastic surfaces may permanently change the appearance and feel of your interior and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Some commercial products may increase gloss on your instrument panel. The increase in gloss may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions.
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. During very cold, damp weather frequent application may be required. See Recommended Fluids and Lubricants on page 6-12.
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Washing Your Vehicle The best way to preserve your vehicle’s finish is to keep it clean by washing it often. Notice: Certain cleaners contain chemicals that can damage the emblems or nameplates on your vehicle. Check the cleaning product label. If it states that it should not be used on plastic parts, do not use it on your vehicle or damage may occur and it would not be covered by the warranty. Do not wash the vehicle in direct sunlight. Use a car washing soap. Do not use cleaning agents that are petroleum based or that contain acid or abrasives, as they can damage the paint, metal or plastic on your vehicle. Approved cleaning products can be obtained from your dealer/retailer. See Vehicle Care/Appearance Materials on page 5-99. Follow all manufacturers’ directions regarding correct product usage, necessary safety precautions and appropriate disposal of any vehicle care product.
Rinse the vehicle well, before washing and after to remove all cleaning agents completely. If they are allowed to dry on the surface, 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 the vehicle. Avoid using high pressure washes closer than 12 inches (30 cm) to the surface of the vehicle. Use of power washers exceeding 1,200 psi (8 274 kPa) can result in damage or removal of paint and decals.
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 on page 5-95.
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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.
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 approved cleaning products from your dealer/retailer. See Vehicle Care/Appearance Materials on page 5-99. 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.
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Windshield, Backglass, and Wiper Blades Clean the outside of the windshield and backglass with glass cleaner. Clean the rubber blades using a lint free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield thoroughly when you clean the blades. Bugs, road grime, sap and a buildup of vehicle wash/wax treatments may cause wiper streaking. Replace the wiper blades if they are worn or damaged. Wipers can be damaged by: (cid:129) Extreme dusty conditions (cid:129) Sand and salt (cid:129) Heat and sun (cid:129) Snow and ice, without proper removal
Aluminum or Chrome-Plated Wheels and Trim Your vehicle may have either aluminum or chrome-plated wheels. Keep the 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.
If you use strong soaps, chemicals,
Notice: Chrome wheels and other chrome trim may be damaged if you do not wash your vehicle after driving on roads that have been sprayed with magnesium, calcium or sodium chloride. These chlorides are used on roads for conditions such as ice and dust. Always wash your vehicle’s chrome with soap and water after exposure. Notice: abrasive polishes, cleaners, brushes, or cleaners that contain acid on aluminum or chrome-plated wheels, you could damage the surface of the wheel(s). The repairs would not be covered by your warranty. Use only approved cleaners on aluminum or chrome-plated wheels. The surface of these wheels is similar to the painted surface of your vehicle. Do not 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.
5-97
Notice: Using chrome polish on aluminum wheels could damage the wheels. The repairs would not be covered by your warranty. Use chrome polish on chrome wheels only. Use chrome polish only on chrome-plated wheels, but avoid any painted surface of the wheel, and buff off immediately after application. Notice: automatic car wash that has silicone carbide tire cleaning brushes, you could damage the aluminum or chrome-plated wheels. The repairs would not be covered by your warranty. Never drive a vehicle equipped with aluminum or chrome-plated wheels through an automatic car wash that uses silicone carbide tire cleaning brushes.
If you drive your vehicle through an
Tires To clean the 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.
5-98
Sheet Metal Damage If the 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 available from your dealer/retailer. Larger areas of finish damage can be corrected in your dealer’s/retailer’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.
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/retailer 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 the 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, we 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.
Vehicle Care/Appearance Materials
Description
Usage
Polishing Cloth
Tar and Road Oil Remover Chrome Cleaner and Polish
White Sidewall Tire Cleaner
Vinyl Cleaner
Glass Cleaner
Chrome Wheel Cleaner
Finish Enhancer
Swirl Remover Polish
Cleaner Wax
Interior and exterior polishing cloth. Removes tar, road oil, and asphalt. Use on chrome or stainless steel. Removes soil and black marks from whitewalls and raised white lettering. Cleans vinyl. Removes dirt, grime, smoke and fingerprints. Removes dirt and grime from chrome wheels. Removes dust, fingerprints, and surface contaminants. Spray on and wipe off. Removes swirl marks, fine scratches, and other light surface contamination. Removes light scratches and protects finish.
5-99
Description
Usage
Vehicle Identification
Foaming Tire Shine Low Gloss
Wash Wax Concentrate
Spot Lifter
Odor Eliminator
Cleans, shines, and protects tires. No wiping necessary. Medium foaming shampoo. Cleans and lightly waxes. Biodegradable and phosphate free. Quickly removes spots and stains from carpets, vinyl, and cloth upholstery. Odorless spray odor eliminator used on fabrics, vinyl, leather and carpet.
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 side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Certification/Tire and Service Parts labels and the certificates of title and registration.
5-100
Engine Identification The eighth character in the VIN is the engine code. This code helps you identify your vehicle’s engine, specifications, and replacement parts. See Capacities and Specifications on page 5-107 for your vehicle’s engine code.
Service Parts Identification Label This label is on the inside of the glove box. It is very helpful if you ever need to order parts. The label has the following information: (cid:129) Vehicle Identification Number (VIN) (cid:129) Model designation (cid:129) Paint information (cid:129) Production options and special equipment Do not remove this label from the vehicle.
Electrical System
Add-On Electrical Equipment Notice: Do not add anything electrical to your vehicle unless you check with your dealer/retailer first. Some electrical equipment can damage your vehicle and the damage would not be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain your vehicle’s battery, even if your vehicle is not operating. Your vehicle has an airbag system. Before attempting to add anything electrical to your vehicle, see Servicing Your Airbag-Equipped Vehicle on page 1-67.
Windshield Wiper Fuses The windshield wiper motor is protected by a 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, have it fixed.
5-101
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. Power and Heated Seat Circuit Breakers There is a circuit breaker located underneath the driver’s side front seat that controls the power and heated seat functions.
Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. 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 do not 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.
5-102
Engine Compartment Fuse Block
The engine compartment fuse block is located on the driver side of the engine compartment. See Engine Compartment Overview on page 5-12 for more information on location.
To remove the cover, push in on the tabs at the ends of the cover and lift. To reinstall the cover, line up the tabs and push down on the cover until the tabs clicks into place. Notice: Spilling liquid on any electrical components on your vehicle may damage it. Always keep the covers on any electrical component.
5-103
Fuse
Usage Heated Seats Grille Guard Fuel Pump
5-104
Fuse
Usage Roof Lamp Battery Ignition Switch Front Wiper
Fuse
10
11
1213
14
15
16
17
18
19
20
2122
23
24
25
26
27
28Usage Regulated Voltage Control Power Power Locks Sunroof, Front Washer Pump Accessories (SPO) Air Compressor Transfer Case Control Module Radio, Heating, Ventilation, Air Conditioning Display Body Control Module Rear Wiper Motor Rear Wiper Pump Switch Air Injection Reactor (AIR) Solenoid Spare 6
Cluster Rear Turn Signal, Hazard Signal Powertrain Control Module 1
Mass Air Flow Sensor, Purge Solenoid Injector Fog Lamp Powertrain Control Module B Transmission Control Module (TCM) Airbags Back-up LampsFuse
29
30
31
32
33
34
35
36
37
3839
40
41
42
43
44
45
46
47
48
49
50
51Usage Antilock Brakes, StabiliTrak® Rear Window Defogger Canister Vent Regulated Voltage Control VSense+ Ignition 1
Transmission Cruise, Inside Rearview Mirror Horn Driver Side Rear Park Lamp Amplifier Reduced Intensity Low-Beam Daytime Running Lamps Passenger Side Headlamp Driver Side Headlamp Trailer Back-Up Lamp Front Park Lamps Air Injection Reactor (AIR) Solenoid Auxiliary Power 2
Electronic Throttle Control Oxygen Sensor Air Conditioning Clutch Passenger Side Rear Park Lamp Spare Auxiliary Power 15-105
Fuse
52
53
54
55
56
5758
59
60
61
62
6364
67
68
82
83
84
85
91Usage StabiliTrak®, Antilock Brakes Power Heater Switch Stop Trailer Parking Lamps Front Turn Signal, Hazard Signal Power Sunroof Transfer Case Control Module Switch Climate Control Spare 8
Power Seats Air Pump Passenger Side Power Window Antilock Brakes, StabiliTrak® 2
Solenoid Antilock Brakes, StabiliTrak® 1
Motor Driver Side Power Window Climate Control Fan Electronic Brake Controller Trailer B+ Fuse Starter Megafuse5-106
Relay
66
69
70
71
72
73
74
75
76
77
7879
80
81
86
87
88
89Usage Fuel Pump Fog Lamp High, Low Beam Headlamps Rear Defogger Windshield Wiper On/Off Windshield Wiper High/Low Horn Headlamp Air Conditioning Clutch Powertrain Control Module Run, Crank Reduced Intensity Low-Beam Daytime Running Lamps Air Injection Reactor (AIR) Solenoid Powertrain (Starter) Spare 2
Heating, Ventilation, Air Conditioning Retained Accessory Power Park LampDiode
65
90Usage Wiper Diode Air Conditioning Clutch Diode
Capacities and Specifications The following approximate capacities are given in English and metric. Please refer to Recommended Fluids and Lubricants on page 6-12 for more information.
Capacities and Specifications
Capacities
Application
English
Metric
Air Conditioning Refrigerant R134a
Cooling System
3.7L Engine 5.3L Engine
Engine Oil with Filter
3.7L and 5.3L Engines
Fuel Tank Transfer Case
For the air conditioning system refrigerant charge amount, see the refrigerant caution label located under the hood. See your dealer/retailer for more
information.
10.0 qt 14.3 qt
6.0 qt 23.0 gal 1.6 qt
9.5 L 13.5 L
5.7 L 87.1 L 1.5 L
5-107
Transmission (Drain and Refill)
3.7L and 5.3L Automatic 3.7L Manual
Capacities and Specifications (cont’d)
Capacities
Application
English
5.0 qt 2.5 qt 100 lb ft
Metric
4.7 L 2.4 L
140 Y
Wheel Nut Torque All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this manual.
Engine Specifications
Engine
VIN Code
Transmission
Spark Plug Gap
VORTEC™ 3.7L L5
5.3L V8
Automatic
Manual
Automatic
.040 inches (1.01 mm)
.040 inches (1.01 mm)
5-108
Section 6
Maintenance Schedule
Maintenance Schedule ......................................6-2
Introduction ...................................................6-2
Maintenance Requirements ..............................6-2
Your Vehicle and the Environment ....................6-2
Using the Maintenance Schedule ......................6-2
Scheduled Maintenance ...................................6-4
Additional Required Services ............................6-6
Maintenance Footnotes ...................................6-7Owner Checks and Services ............................6-9
At Each Fuel Fill ............................................6-9
At Least Once a Month ...................................6-9
At Least Once a Year ...................................6-10
Recommended Fluids and Lubricants ...............6-12
Normal Maintenance Replacement Parts ..........6-14
Engine Drive Belt Routing ..............................6-15
Maintenance Record .....................................6-166-1
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/retailer 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 might not be covered by warranty.
6-2
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.
Using the Maintenance Schedule We want to help you keep your vehicle in good working condition. But we do not know exactly how you will drive it. You might drive very short distances only a few times a week. Or you might drive long distances all the time in very hot, dusty weather. You might use your vehicle in making deliveries. Or you might 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 might 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 dealer/retailer.
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 4-42. are driven on reasonable road surfaces within legal driving limits. are driven off-road in the recommended manner. See Off-Road Driving on page 4-12. use the recommended fuel. See Gasoline Octane on page 5-5.
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 6-7 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.
CAUTION:
(Continued)
CAUTION:
(Continued)
If you have any doubt, see your dealer/ retailer to have a qualified technician do the work. See Doing Your Own Service Work on page 5-4.
Some maintenance services can be complex. So, unless you are technically qualified and have the necessary equipment, you should have your dealer/retailer do these jobs. When you go to your dealer/retailer for your service needs, you will know that trained and supported service technicians will perform the work using genuine parts. If you want to purchase service information, see Service Publications Ordering Information on page 7-15. 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 6-12 and Normal Maintenance Replacement Parts on page 6-14. 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 parts from your dealer/retailer.
6-3
(cid:129) (cid:129) (cid:129) (cid:129) Scheduled Maintenance When the CHANGE OIL message in the Driver Information Center (DIC) comes on, it means that service is required for your vehicle. See DIC Warnings and Messages on page 3-43. 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 dealer/retailer has trained service technicians who will perform this work using genuine 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 Life System on page 5-18 for information on the Engine Oil Life System and resetting the system.
When the CHANGE 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 OIL message comes on within 10 months since the 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 10 months or more since the last service or if the message has not come on at all for one year.
6-4
Scheduled Maintenance
Service
Maintenance I Maintenance II
Change engine oil and filter. See Engine Oil on page 5-15. Reset oil life system. See Engine Oil Life System on page 5-18. An Emission Control Service. Lubricate chassis components. See footnote #. Visually check for any leaks or damage. See footnote (j). Inspect engine air cleaner filter. If necessary, replace filter. See Engine Air Cleaner/Filter on page 5-20. Rotate tires and check inflation pressures and wear. See Tire Inspection and Rotation on page 5-68 and “Tire Wear Inspection” in At Least Once a Month on page 6-9. Inspect brake system. See footnote (a). Check engine coolant and windshield washer fluid levels and add fluid as needed. Perform any needed additional services. See “Additional Required Services” in this section. Inspect suspension and steering components. See footnote (b). Inspect engine cooling system. See footnote (c). Inspect wiper blades. See footnote (d). Inspect restraint system components. See footnote (e). Lubricate body components. See footnote (f). Check transmission fluid level and add fluid as needed.
•
• •
•
•
•
•
•
• •
•
•
•
•
•
• • • • • •
6-5
Additional Required Services The following services should be performed at the first maintenance service (I or II) after the indicated miles (kilometers) shown for each item.
Service and Miles (Kilometers)
Additional Required Services 75,000
25,000
(40 000)50,000
(80 000)(120 000)
100,000
(160 000)125,000
(200 000)150,000
(240 000)•
•
Inspect fuel system for damage or leaks. Inspect exhaust system for loose or damaged components. Replace engine air cleaner filter. See Engine Air Cleaner/Filter on page 5-20. Change automatic transmission fluid and filter (severe service). See footnote (h). Change automatic transmission fluid and filter (normal service). Change transfer case fluid. See footnote (g). Replace spark plugs and inspect spark plug wires. An Emission Control Service.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
6-6
Additional Required Services (cont’d)
25,000
(40 000)50,000
(80 000)75,000
(120 000)
100,000
(160 000)125,000
(200 000)150,000
(240 000)Service and Miles (Kilometers)
Engine cooling system service (or every five years, whichever occurs first). An Emission Control Service. See footnote (i). Inspect engine accessory drive belt. An Emission Control Service. See footnote (k).
Maintenance Footnotes # Lubricate the front suspension, steering linkage, and parking brake cable guides. Control arm ball joints require lubrication but should not be lubricated unless their temperature is 10°F (-12°C) or higher, or they could be damaged. (a) Visually inspect brake lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect other brake parts, including calipers, parking brake, etc.
•
•
(b) Visually inspect front and rear suspension and steering system for damaged, loose, or missing parts, signs of wear or lack of lubrication. Inspect power steering lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Visually check constant velocity joints, rubber boots and axle seals for leaks. Rotate and inspect U-joints, retainers, and bolts on rear drive shaft for seizing or loosening. (c) Visually inspect hoses and have them replaced if they are cracked, swollen, or deteriorated. Inspect all pipes, fittings, and clamps; replace with genuine parts as needed. To help ensure proper operation, a pressure test of the cooling system and pressure cap and cleaning the outside of the radiator and air conditioning condenser is recommended at least once a year.
6-7
(d) Inspect wiper blades for wear, cracking, or contamination. Clean the windshield and wiper blades, if contaminated. Replace wiper blades that are worn or damaged. See Windshield Wiper Blade Replacement on page 5-52 and Windshield, Backglass, and Wiper Blades on page 5-97 for more information. (e) Make sure the safety belt reminder light and safety belt assemblies are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that might keep a safety belt system from doing its job, have it repaired. Have any torn or frayed safety belts replaced. Also see Checking the Restraint Systems on page 1-69. (f) Lubricate all key lock cylinders, hood latch assembly, secondary latch, pivots, spring anchor, release pawl, rear compartment hinges, outer swing-gate handle pivot points, rear door detent link, roller mechanism, swing-gate handle pivot points, latch bolt, fuel door hinge, locks, and folding seat hardware. More frequent lubrication may be required when exposed to a corrosive environment. Applying silicone grease on weatherstrips with a clean cloth will make them last longer, seal better, and not stick or squeak.
(g) Check vent hose at transfer case for kinks and proper installation. (h) Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:
− In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
− In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police, or delivery
service.
(i) Drain, flush, and refill cooling system. This service can be complex; you should have your dealer/retailer perform this service. See Engine Coolant on page 5-27
for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and filler neck. Pressure test the cooling system and pressure cap. (j) A fluid loss in any vehicle system could indicate a problem. Have the system inspected and repaired and the fluid level checked. Add fluid if needed. (k) Visually inspect belt for fraying, excessive cracks, or obvious damage. Replace belt if necessary.6-8
Owner Checks and Services These owner checks and services should be performed at the intervals specified to help ensure the safety, dependability, and emission control performance of your vehicle. Your dealer/retailer can assist you with these checks and services. Be sure any necessary repairs are completed at once. Whenever any fluids or lubricants are added to your vehicle, make sure they are the proper ones, as shown in Recommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill It is important to perform these underhood checks at each fuel fill. Engine Oil Level Check Notice: regularly and keep it at the proper level. Failure to keep the engine oil at the proper level can cause damage to the engine not covered by your warranty. Check the engine oil level and add the proper oil if necessary. See Engine Oil on page 5-15.
It is important to check the engine oil
Engine Coolant Level Check Check the engine coolant level and add DEX-COOL® coolant mixture if necessary. See Engine Coolant on page 5-27. Windshield Washer Fluid Level Check Check the windshield washer fluid level in the windshield washer fluid reservoir and add the proper fluid if necessary.
At Least Once a Month Tire Inflation Check Inspect your vehicle’s tires and make sure they are inflated to the correct pressures. Do not forget to check the spare tire. See Inflation - Tire Pressure on page 5-62. Check to make sure the spare tire is stored securely. See Changing a Flat Tire on page 5-79. Tire Wear Inspection Tire rotation may be required for high mileage highway drivers prior to the Engine Oil Life System service notification. Check the tires for wear and, if necessary, rotate the tires. See Tire Inspection and Rotation on page 5-68.
6-9
At Least Once a Year Starter Switch Check
{CAUTION:
When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake and the regular
brake. See Parking Brake on page 2-32. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.
3. On automatic transmission vehicles, try to start the engine in each gear. The vehicle should start only in PARK (P) or NEUTRAL (N). If the vehicle starts in any other position, contact your dealer/retailer for service. On manual transmission vehicles, put the shift lever in NEUTRAL, push the clutch pedal down halfway, and try to start the engine. The vehicle should start only when the clutch pedal is pushed down all the way to the floor.
6-10
If the vehicle starts when the clutch pedal is not pushed all the way down, contact your dealer/retailer for service.
Automatic Transmission Shift Lock Control System Check
{CAUTION:
When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured.
1. Before you start, be sure you have enough room around the vehicle. It should be parked on a level surface.
2. Firmly apply the parking brake. See Parking Brake
on page 2-32. Be ready to apply the regular brake immediately if the vehicle begins to move.
3. With the engine off, turn the ignition to ON/RUN, but do not start the engine. Without applying the regular brake, try to move the shift lever out of PARK (P) with normal effort. If the shift lever moves out of PARK (P), contact your dealer/retailer for service.
Ignition Transmission Lock Check While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. (cid:129) With an automatic transmission, the ignition
should turn to LOCK/OFF only when the shift lever is in PARK (P). The ignition key should come out only in LOCK/OFF.
(cid:129) With a manual transmission, the ignition key should
come out only in LOCK/OFF.
Contact your dealer/retailer if service is required. Parking Brake and Automatic Transmission Park (P) Mechanism Check
{CAUTION:
When you are doing this check, your vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of your vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move.
Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake.
To check the parking brake’s holding ability: With the engine running and transmission in NEUTRAL (N), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only. To check the PARK (P) mechanism’s holding ability: With the engine running, shift to PARK (P). Then release the parking brake followed by the regular brake.
Contact your dealer/retailer if service is required. Underbody Flushing Service At least every spring, use plain water to flush any corrosive materials from the underbody. Take care to clean thoroughly any areas where mud and other debris can collect.
6-11
(cid:129) (cid:129) Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer/retailer.
Usage
Engine Oil
Engine Coolant
Hydraulic Brake
System
Fluid/Lubricant Engine oil which meets GM Standard GM6094M and displays the American Petroleum Institute Certified for Gasoline Engines starburst symbol. To determine the proper viscosity for your vehicle’s engine, see Engine Oil on page 5-15. 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See Engine Coolant on page 5-27. Delco® Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.
Usage
Windshield
Washer
Power Steering
System
Automatic
Transmission
Manual
Transmission
Hydraulic
Clutch System
Key Lock Cylinders
Chassis
Lubrication
Fluid/Lubricant
Optikleen® Washer Solvent.
GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186). DEXRON®-VI Automatic Transmission Fluid. Manual Transmission Fluid (GM Part No. U.S. 89021806, in Canada 89021807). Hydraulic Clutch Fluid (GM Part No. U.S. 12345347, in Canada 10953517) or equivalent DOT-3 brake fluid. Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.
6-12
Usage
Fluid/Lubricant
Front and Rear
Axle
Transfer Case
Front Axle Propshaft
Spline
Hood Hinges
SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 89021677, in Canada 89021678) meeting GM Specification 9986115. Manual Transmission Fluid (GM Part No. U.S. 88861800, in Canada 88861801). Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830. Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).
Usage Outer
Swing-gate Handle Pivot
Points
Fluid/Lubricant
Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474).
Weatherstrip Conditioning
Weatherstrip
Squeaks
Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518) or Dielectric Silicone Grease
