Download PDF Manual

{CAUTION:


Poorly maintained and improperly used tires are dangerous.


(cid:127) Overloading your vehicle’s tires can cause overheating as a result of too much friction. You could have an air-out and a serious accident. See Loading Your Vehicle on page 290. (cid:127) Underinflated tires pose the same


danger as overloaded tires. The resulting accident could cause serious injury. Check all tires frequently to maintain the recommended pressure.


CAUTION:


(Continued)


Tire pressure should be checked when your vehicle’s tires are cold. See Inflation - Tire Pressure on page 385.


(cid:127) Overinflated tires are more likely to


be cut, punctured, or broken by a sudden impact — such as when you hit a pothole. Keep tires at the recommended pressure.


(cid:127) Worn, old tires can cause accidents.


If the tire’s tread is badly worn, or if your vehicle’s tires have been damaged, replace them.


CAUTION:


(Continued)


377


Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The examples below show a typical passenger vehicle tire and a compact spare tire sidewall.


(A) Tire Size: The tire size is a combination of letters and numbers used to define a particular tire’s width, height, aspect ratio, construction type and service description. See the “Tire Size” illustration later in this section for more detail.


(B) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM’s specific tire performance criteria have a TPC specification code molded onto the sidewall. GM’s TPC specifications meet or exceed all federal safety guidelines.


(C) DOT (Department of Transportation): The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards.


Passenger Vehicle Tire Example


378


(D) Tire Identification Number (TIN): The letters and numbers following DOT code are the Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture.


(E) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread.


(F) Uniform Tire Quality Grading (UTQG): Tire manufacturers are required to grade tires based on three performance factors: treadwear, traction and temperature resistance. For more information see Uniform Tire Quality Grading on page 397.


(G) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load.


Compact Spare Tire Example


(A) Temporary Use Only: The compact spare tire or temporary use tire has a tread life of approximately 3,000 miles (5 000 km) and should not be driven at speeds over 65 mph (105 km/h). The compact spare tire is for emergency use when a regular road tire has lost air and gone flat. See “Compact Spare Tire” under Spare Tire on page 422 for additional information.


379


(B) Tire Ply Material: The type of cord and number of plies in the sidewall and under the tread.


(C) Tire Identification Number (TIN): The Tire Identification Number (TIN). The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture.


(D) Maximum Cold Inflation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load.


(E) Tire Inflation: The temporary use tire or compact spare tire should be inflated to 60 psi (420 kPa). For more information on tire pressure and inflation see Inflation - Tire Pressure on page 385.


(F) Tire Size: A combination of letters and numbers define a tire’s width, height, aspect ratio, construction type and service description. The letter T as the first character in the tire size means the tire is for temporary use only.


(G) TPC Spec (Tire Performance Criteria Specification): Original equipment tires designed to GM’s specific tire performance criteria have a TPC specification code molded onto the sidewall. GM’s TPC specifications meet or exceed all federal safety guidelines.


380


Tire Size The following illustration shows an example of a typical passenger vehicle tire size.


(A) P-Metric Tire: The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association.


(B) Tire Width: The three-digit number indicates the tire section width in millimeters from sidewall to sidewall.


(C) Aspect Ratio: A two-digit number that indicates the tire height-to-width measurements. For example, if the tire size aspect ratio is 70, as shown in item C of the illustration, it would mean that the tire’s sidewall is 70 percent as high as it is wide.


(D) Construction Code: A letter code is used to indicate the type of ply construction in the tire. The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted-bias ply construction.


(E) Rim Diameter: Diameter of the wheel in inches.


(F) Service Description: These characters represent the load range and speed rating of the tire. The load index represents the load carry capacity a tire is certified to carry. The load index can range from 1 to 279. The speed rating is the maximum speed a tire is certified to carry a load. Speed ratings range from A to Z.


381


Tire Terminology and Definitions


Air Pressure: The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa).


Accessory Weight: This means the combined weight of optional accessories. Some examples of optional accessories are, automatic transmission/transaxle, power steering, power brakes, power windows, power seats, and air conditioning.


Aspect Ratio: The relationship of a tire’s height to its width.


Belt: A rubber coated layer of cords that is located between the plies and the tread. Cords may be made from steel or other reinforcing materials.


Bead: The tire bead contains steel wires wrapped by steel cords that hold the tire onto the rim.


Bias Ply Tire: A pneumatic tire in which the plies are laid at alternate angles less than 90 degrees to the centerline of the tread.


382


Cold Tire Pressure: The amount of air pressure in a tire, measured in pounds per square inch (psi) or kilopascals (kPa) before a tire has built up heat from driving. See Inflation - Tire Pressure on page 385.


Curb Weight: This means the weight of a motor vehicle with standard and optional equipment including the maximum capacity of fuel, oil, and coolant, but without passengers and cargo.


DOT Markings: A code molded into the sidewall of a tire signifying that the tire is in compliance with the U.S. Department of Transportation (DOT) motor vehicle safety standards. The DOT code includes the Tire Identification Number (TIN), an alphanumeric designator which can also identify the tire manufacturer, production plant, brand, and date of production.


GVWR: Gross Vehicle Weight Rating. See Loading Your Vehicle on page 290.


GAWR FRT: Gross Axle Weight Rating for the front axle. See Loading Your Vehicle on page 290.


GAWR RR: Gross Axle Weight Rating for the rear axle. See Loading Your Vehicle on page 290.


Intended Outboard Sidewall: The side of an asymmetrical tire, that must always face outward when mounted on a vehicle.


Kilopascal (kPa): The metric unit for air pressure.


Light Truck (LT-Metric) Tire: A tire used on light duty trucks and some multipurpose passenger vehicles.


Load Index: An assigned number ranging from 1 to 279 that corresponds to the load carrying capacity of a tire.


Maximum Inflation Pressure: The maximum air pressure to which a cold tire may be inflated. The maximum air pressure is molded onto the sidewall.


Maximum Load Rating: The load rating for a tire at the maximum permissible inflation pressure for that tire.


Maximum Loaded Vehicle Weight: The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight.


Normal Occupant Weight: The number of occupants a vehicle is designed to seat multiplied by 150 lbs (68 kg). See Loading Your Vehicle on page 290.


Occupant Distribution: Designated seating positions.


Outward Facing Sidewall: The side of an asymmetrical tire that has a particular side that faces outward when mounted on a vehicle. The side of the tire that contains a whitewall, bears white lettering, or bears manufacturer, brand, and/or model name molding that is higher or deeper than the same moldings on the other sidewall of the tire.


Passenger (P-Metric) Tire: A tire used on passenger cars and some light duty trucks and multipurpose vehicles.


Recommended Inflation Pressure: Vehicle manufacturer’s recommended tire inflation pressure as shown on the tire placard. See Inflation - Tire Pressure on page 385 and Loading Your Vehicle on page 290.


383


Radial Ply Tire: A pneumatic tire in which the ply cords that extend to the beads are laid at 90 degrees to the centerline of the tread.


Rim: A metal support for a tire and upon which the tire beads are seated.


Sidewall: The portion of a tire between the tread and the bead.


Speed Rating: An alphanumeric code assigned to a tire indicating the maximum speed at which a tire can operate.


Traction: The friction between the tire and the road surface. The amount of grip provided.


Tread: The portion of a tire that comes into contact with the road.


Treadwear Indicators: Narrow bands, sometimes called wear bars, that show across the tread of a tire when only 1/16 inch (1.6 mm) of tread remains. See When It Is Time for New Tires on page 393.


UTQGS (Uniform Tire Quality Grading Standards): A tire information system that provides consumers with ratings for a tire’s traction, temperature, and treadwear. Ratings are determined by tire manufacturers using government testing procedures. The ratings are molded into the sidewall of the tire. See Uniform Tire Quality Grading on page 397.


Vehicle Capacity Weight: The number of designated seating positions multiplied by 150 lbs (68 kg) plus the rated cargo load. See Loading Your Vehicle on page 290.


Vehicle Maximum Load on the Tire: Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight.


Vehicle Placard: A label permanently attached to a vehicle showing the vehicle’s capacity weight and the original equipment tire size and recommended inflation pressure. See “Tire and Loading Information Label” under Loading Your Vehicle on page 290.


384


Inflation - Tire Pressure Tires need the correct amount of air pressure to operate effectively. Notice: Do not let anyone tell you that under-inflation or over-inflation is all right. It is not. If your tires do not have enough air (under-inflation), you can get the following: (cid:127) Too much flexing (cid:127) Too much heat (cid:127) Tire overloading (cid:127) Premature or irregular wear (cid:127) Poor handling (cid:127) Reduced fuel economy If your tires have too much air (over-inflation), you can get the following: (cid:127) Unusual wear (cid:127) Poor handling (cid:127) Rough ride (cid:127) Needless damage from road hazards


A Tire and Loading Information label is attached to the vehicle’s center pillar (B-pillar), below the driver’s door latch. This label shows your vehicle’s original equipment tires and the correct inflation pressures for your tires when they are cold. The recommended cold tire inflation pressure, shown on the label, is the minimum amount of air pressure needed to support your vehicle’s maximum load carrying capacity. For additional information regarding how much weight your vehicle can carry, and an example of the Tire and Loading Information label, see Loading Your Vehicle on page 290. How you load your vehicle affects vehicle handling and ride comfort, never load your vehicle with more weight than it was designed to carry. When to Check Check your tires once a month or more. Also check the tire pressure of the spare tire. If you have a compact spare tire, it should be at 60 psi (420 kPa). See Spare Tire on page 422
for additional information.


385


Tire Pressure Monitor System Your vehicle has a Tire Pressure Monitor System (TPMS). This system uses radio and sensor technology to check tire pressure levels. TPMS sensors are mounted onto each tire and wheel assembly on your vehicle, except the spare tire. The TPMS sensors monitor the air pressure in your vehicle’s tires and transmit the tire pressure readings to a receiver located in the vehicle. When a low tire pressure condition is detected, the TPMS will illuminate the low tire pressure warning light located in the instrument panel cluster, and at the same time display the LOW TIRE warning message on the Driver Information Center (DIC). The low tire pressure warning light and the LOW TIRE warning message appear at each ignition cycle until the tires are inflated to the correct inflation pressure.


How to Check Use a good quality pocket-type gage to check tire pressure. You cannot tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they are 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 inflation pressure is low, add air until you reach the recommended amount. 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.


386


For additional information and details about the DIC operation and displays see DIC Controls and Displays on page 196 and DIC Warnings and Messages on page 200. You may notice, during cooler weather conditions, that the low tire pressure warning light and the DIC LOW TIRE message may come on when the vehicle is first started, and then turn off as you start to drive. This may be an early indicator that the air pressure in the tire(s) is getting low and needs to be inflated to the proper pressure. Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.)


As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly under-inflated.


Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. 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.


387


A Tire and Loading Information label, attached to your vehicle, shows the size of your vehicle’s original equipment tires and the correct inflation pressure for your vehicle’s tires when they are cold. See Loading Your Vehicle on page 290, for an example of the Tire and Loading Information label and its location on your vehicle. Also see Inflation - Tire Pressure on page 385 for additional information. Your vehicle’s TPMS can warn you about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection and Rotation on page 391, When It Is Time for New Tires on page 393, and Tires on page 377. Notice: Do not use a tire sealant if your vehicle has Tire Pressure Monitors. The liquid sealant can damage the tire pressure monitor sensors.


Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.


388


TPMS Sensor Identification Codes Each TPMS sensor has a unique identification code. Any time you replace one or more of the TPMS sensors or rotate your vehicle’s tires, the identification codes will need to be matched to the new tire/wheel position. The sensors are matched to the tire/wheel positions in the following order: driver’s side front tire, passenger’s side front tire, passenger’s side rear tire, and driver’s side rear tire using a TPMS diagnostic tool. See your dealer for service. The TPMS sensors may also be matched to each tire/wheel position by increasing or decreasing the tire’s air pressure. If increasing the tire’s air pressure, do not exceed the maximum inflation pressure indicated on the tire’s sidewall. 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 TPMS sensor matching procedure is outlined below: 1. Set the parking brake. 2. Turn the ignition switch to ON with the


engine off.


3. Turn the exterior lamp switch from AUTO


to OFF four times within three seconds. A double horn chirp will sound and the TPMS low tire warning light starts flashing. The double horn chirp and flashing TPMS warning light indicates the TPMS matching process has started. The TPMS warning light should continue flashing throughout the matching procedure. The LOW TIRE message displays on the Driver Information Center (DIC).


4. Start with the driver’s side front tire.


389


5. Remove the valve cap from the valve


cap stem. Activate the TPMS 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, turn the ignition switch to LOCK and start over beginning with Step 2. To let air-pressure out of a tire you can use the pointed end of the valve cap, a pencil-style air pressure gage, or a key.


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


and repeat the procedure in Step 5.


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


and repeat the procedure in Step 5.


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


repeat the procedure in Step 5.


9. After hearing the confirming horn chirp for the driver side rear tire, check to see if the TPMS low tire warning light and the DIC LOW TIRE messages have turned off. If yes, the TPMS sensors have been relearned. Turn the ignition switch to LOCK. If the low tire warning light and the DIC SERV TPM messages are on after completing Step 5 for the driver side rear tire, the sensor relearn process has not been successful. Turn the ignition switch to LOCK and repeat the matching process beginning with Step 2.


10. Set all four tires to the recommended


air pressure level as indicated on the Tire and Loading Information label.


11. Put the valve caps back on the valve stems.


390


Federal Communications Commission (FCC) and Industry and Science Canada The Tire Pressure Monitor System (TPMS) operates on a radio frequency and complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful


interference.


2. This device must accept any interference received, including interference that may cause undesired operation.


The Tire Pressure Monitor System (TPMS) operates on a radio frequency and complies with RSS-210 of Industry and Science Canada. Operation is subject to the following two conditions: 1. This device may not cause interference. 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.


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 393
and Wheel Replacement on page 398 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 wheel wrench to tighten the cable. See Changing a Flat Tire on page 402. 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 445.


391


{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 402.


Any time you rotate the vehicle’s tires the Tire Pressure Monitor System (TPMS) will need to be reset. The TPMS identification codes will need to be matched to the tire and wheel position. See “TPMS Sensor Identification Codes” under Tire Pressure Monitor System on page 386.


When rotating your tires, always use one of the correct rotation patterns shown here. If your vehicle has a compact spare tire or a spare tire that does not match your vehicle’s road tires and wheels, in size and type, do not include the spare in the tire rotation. After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire and Loading Information label. For the location of the Tire and Loading Information label see Loading Your Vehicle on page 290. Make certain that all wheel nuts are properly tightened, see “Wheel Nut Torque” under Capacities and Specifications on page 439 for the proper wheel nut torque specification.


392


When It Is Time for New Tires


One way to tell when it is 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.


(cid:127) The tread or sidewall is cracked, cut or


snagged deep enough to show cord or fabric.


(cid:127) The tire has a bump, bulge, or split. (cid:127) The tire has a puncture, cut, or other damage


that cannot be repaired well because of the size or location of the damage.


393


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 by the tire manufacturer.


If the tires have an all-season tread design, the TPC spec number will be followed by an MS for mud and snow. See Tire Sidewall Labeling on page 378 for additional information.


{CAUTION:


Mixing tires could cause you to lose control of your vehicle 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 all wheels.


CAUTION:


(Continued)


394


CAUTION:


(Continued)


{CAUTION:


Your vehicle may have a compact spare tire and wheel assembly. If the vehicle has a compact spare tire and wheel, they have the same overall diameter as your vehicle’s full-size tires and wheels. Because they were designed and developed for use on your vehicle, it is all right to drive your vehicle with the compact spare installed properly. Compact spare tires are designed for temporary use only. See Spare Tire on page 422.


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. Your vehicle’s original equipment tires are listed on the Tire and Loading Information Label. This label is attached to the vehicle’s center pillar (B-pillar). See Loading Your Vehicle on page 290, for more information about the Tire and Loading Information Label and its location on your vehicle.


395


Different Size Tires and Wheels If you add wheels or tires that are a different size than your original equipment wheels and tires, this may 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, 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 394 and Accessories and Modifications on page 323
for additional information.


396


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.


397


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 may need to be checked. If you notice your vehicle vibrating when driving on a smooth road, your tires and wheels may need to be rebalanced. See your dealer 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 if any of these conditions exist.


398


Your dealer will know the kind of wheel you need. 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 402 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.


399


Tire Chains


{CAUTION:


If your vehicle has P225/75R15, P265/ 75R15, P235/75R15, or P235/50R18 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.


CAUTION:


(Continued)


400


CAUTION:


(Continued)


Follow that manufacturer’s instructions. To help avoid damage to your vehicle, drive slowly, readjust, or remove the device if it is contacting your vehicle. Do not spin the vehicle’s wheels. If you do find traction devices that will fit, install them on the rear tires.


If your vehicle has a tire size other


Notice: than P225/75R15, P265/75R15, P235/75R15 or P235/50R18 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.


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 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 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.


401


CAUTION:


(Continued)


3. If you have a four-wheel-drive vehicle,


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


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.


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. See Hazard Warning Flashers on page 160 for more information.


{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 an automatic transmission


shift lever in PARK (P), or shift a manual transmission to FIRST (1) or REVERSE (R).


CAUTION:


(Continued)


402


When your vehicle has a flat tire, use the following example 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.


Removing the Spare Tire and Tools The tools you will need are located under the passenger’s seat.


Crew Cab


For crew cab models, the jack and wheel blocks are located under the driver’s side rear seat.


For regular and extended cab vehicles, the jack and wheel blocks are located under the cover at the center of the vehicle behind the front seats.


Regular/Extended Cab


403


3. Remove the wheel blocks and the wheel


block retainer by turning the wing nut counterclockwise.


4. 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.


5. Locate the wing nut used to retain the storage


bag and tools which is under the front passenger’s seat. Remove it by turning the wing nut counterclockwise.


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


To access the tools, do the following:


1. Move the seats


forward to access the cover.


Extended/Regular Cab 2. Turn the wing nut on the cover counterclockwise to remove it. For crew cab models, reach under the rear seat to access the jack and wheel blocks. To reinstall the jack and wheel block assembly in the mounting bracket, insert the tabs into the jack base by pushing the blocks up into the assembly. The outer hole in the jack base aligns with the tab on the bracket. When reinstalling, make sure the jack is secure, but do not overtighten the jack in the bracket.


404


A. Jack Handle


Extensions


B. Jack


C. Extension Tool D. Wheel Wrench E. Wheel Blocks


1. Assemble the wheel wrench (D) and the jack


handle extensions (A).


2. Insert the hoist end (chiseled end) of the extension tool (C) through the hole in the rear bumper and into the funnel-shaped guide. The chiseled end of the extension is used to lower the spare tire.


405


3. Turn the wheel wrench (D) 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 on page 414.


Removing the Flat Tire and Installing the Spare Tire Use the following pictures and instructions as a guide in removing the flat tire and raising the vehicle.


4. Tilt the retainer


when the tire has been lowered, and slide it up the cable so it can be pulled up through the wheel opening.


5. Put the spare tire near the flat tire.


The tools you will be using include the jack (A), the wheel blocks (B), the extension tool (C), the jack handle extensions (D), and the wheel wrench (E).


406


1. Remove the center cap by placing the chisel end of the wheel wrench (E) into one of the slots on the wheel and gently prying the cap out. If your vehicle has the Xtreme package, remove each wheel nut cap with the wheel wrench and remove the center cap by hand.


2. Use the wheel wrench to loosen all the wheel


nuts by turning it counterclockwise. Do not remove the wheel nuts yet.


407


{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.


408


Front Position


3. Position the jack (A) under the vehicle as


shown for the front or rear locations.


Front Position


Rear Position


If the flat tire is on the front of the vehicle, position the jack to the rear of the front tire in the pocket off of the frame.


If the flat tire is on the rear, position the jack under the rear axle and get as close as possible to the shock absorber.


4. Make sure the jack head is positioned so that the rear axle is resting securely between the grooves that are on the jack head.


5. 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 fit under the wheel well.


409


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


CAUTION:


(Continued)


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.


7. Remove any rust


or dirt from the wheel bolts, mounting surfaces and spare wheel.


8. Install the spare 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 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.


CAUTION:


(Continued)


410


{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.


9. 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 to tighten the nuts until the wheel is held against the hub.


Front Position


411


{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 on page 439
for wheel nut torque specification.


Rear Position


10. Turn the wheel wrench counterclockwise to


lower the vehicle. Lower the jack completely.


412


Improperly tightened wheel nuts can


Notice: lead 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 439
for the wheel nut torque specification.


11. Tighten the wheel


nuts firmly in a crisscross sequence as shown by turning the wheel wrench clockwise.


When you reinstall the regular wheel and tire, you must also reinstall the center cap. Place the cap on the wheel and tap it into place until it seats flush with the wheel. The cap only goes on one way. Be sure to line up the tab on the center cap with the indentation on the wheel. For the Xtreme, tighten each nut cap by hand, then tighten an additional one quarter of a turn with the wheel wrench.


413


Secondary Latch System Your vehicle has an underbody-mounted tire hoist assembly that has a secondary latch system. It is 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. See Storing a Flat or Spare Tire and Tools on page 418.


{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 next.


414


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


1. Check under the


vehicle to see if the cable end fitting is visible.


2. If the cable end fitting 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 wheel 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 under Removing the Spare Tire and Tools on page 403.


5. Turn the wrench counterclockwise until approximately 6 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 (A) on the wheel blocks (B), separating them so that the jack is balanced securely.


415


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 wheel.


9. Turn the wheel wrench clockwise to raise the


jack until it lifts the tire.


10. Continue raising the jack until the tire stops moving upward and is held firmly in place, the secondary latch has released, and the tire is balancing on the jack.


11. Remove the jack handle and insert the hoist end of the extension through the hole in the rear bumper. Turn the wheel wrench counterclockwise one turn or until the wheel retainer assembly is disengaged.


12. Reinsert the jack handle into the jack.


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.


416


{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 under spare.


13. 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 end of the extension into the hoist shaft hole in the bumper and turn the wheel wrench counterclockwise to lower the spare the rest of the way.


14. Tilt the tire retainer at the end of the cable


and pull it through the wheel opening. Pull the tire out from under the vehicle.


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


the wheel wrench clockwise to raise the cable. 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 on page 406.


417


Storing a Flat or Spare Tire 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.


418


Store the tire under the rear of the vehicle in the spare tire carrier. Use the following art and text to help you. 1. Put the tire on the ground at the rear of the


vehicle with the valve stem pointed down.


2. Tilt the retainer downward and through the


wheel opening. Make sure the retainer is fully seated across the underside of the wheel.


3. Attach the wheel wrench and extensions


together as shown.


4. Insert the hoist end of the extension through


the hole in the rear bumper and into the funnel-shaped guide.


5. Turn the wheel wrench clockwise to raise


the tire part way up. Make sure the retainer is seated in the wheel opening and the valve stem is pointed down.


6. Raise the tire fully against the underside


of the vehicle by turning the wheel wrench clockwise until you feel it skip twice. You cannot overtighten the cable.


419


To store the tools, do the following: 1. Return the wheel wrench, jack extensions and


the storage bag to the locations described under Removing the Spare Tire and Tools on page 403.


2. Install the wheel blocks first. Then install


the jack.


3. Secure the items in the vehicle as


shown next.


7. Make sure the tire is stored securely.


Push, pull (A), and then try to turn (B) the tire. If the tire moves, check to make sure the tire valve stem is pointing down, then use the wheel wrench to loosen and then tighten the cable.


420


Crew Cab


A. Jack B. Wheel Blocks C. Wing Nut


Regular/Extended Cab


A. Jack B. Wheel Blocks C. Wing Nut


421


Of course, it is best to replace your vehicle’s spare with a full-size tire as soon as you can. The spare tire will last longer and be in good shape in case you need it again. Notice: When the compact spare is installed, do not take your vehicle through an automatic car wash with guide rails. The compact spare can get caught on the rails. That can damage the tire and wheel, and maybe other parts of your vehicle. Do not use your compact spare on other vehicles. And do not mix your compact spare tire or wheel with other wheels or tires. They will not fit. Keep your spare tire and its wheel together. Notice: Tire chains will not fit your compact spare. Using them can damage your vehicle and can damage the chains too. Do not use tire chains on your compact spare.


If your vehicle has four-wheel drive


Spare Tire Compact Spare Tire Your vehicle may have a compact spare tire. Although the compact spare tire was fully inflated when your vehicle was new, it can lose air over time. Check the inflation pressure regularly. It should be 60 psi (420 kPa). Notice: and the compact spare tire is installed on your vehicle, do not drive in four-wheel drive until you can have your flat tire repaired and/or replaced. You could damage your vehicle, and the repair costs would not be covered by your warranty. Never use four-wheel drive when the compact spare tire is installed on your vehicle. After installing the compact spare on your vehicle, you should stop as soon as possible and make sure your vehicle’s spare tire is correctly inflated. The compact spare is made to perform well at speeds up to 62 mph (100 km/h) for distances up to 500 miles (804 km). For heavy payloads or towing, and for low traction or four-wheel-drive conditions, repair or replace the full-size tire.


422


Full-Size Spare Tire Your vehicle may have a full-size spare tire, which, when new, was fully inflated. A spare tire may lose air over time, so check its inflation pressure regularly. See Inflation - Tire Pressure on page 385 and Loading Your Vehicle on page 290 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 406 and Storing a Flat or Spare Tire and Tools on page 418. Your vehicle may have a different size spare tire than the road tires originally installed on your vehicle. This spare 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 different size spare tire is installed, keep the vehicle in two-wheel drive.


If your vehicle has four-wheel drive


Notice: and the different size spare tire is installed on your vehicle, do not drive in four-wheel drive until you can have your flat tire repaired and/or replaced. You could damage your vehicle, and the repair costs would not be covered by your warranty. Never use four-wheel drive when the different size spare tire is installed on your vehicle. 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 62 mph (100 km/h) for distances up to 500 miles (804 km). For heavy payloads or towing, and for low traction or four-wheel-drive conditions, repair or replace the full-size tire. Have the damaged or flat road tire repaired or replaced as soon as you can and installed back onto your vehicle. This way, the 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.


423


Appearance Care


Cleaning the Inside of Your Vehicle 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. When cleaning your vehicle’s interior, only use cleaners specifically designed for the surfaces being cleaned. Permanent damage may result


If you use abrasive cleaners when


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: cleaning glass surfaces on your vehicle, you could scratch the glass. 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 GM dealer has a product for cleaning your vehicle’s glass. Should it become necessary, you can also obtain a product from your GM dealer to remove odors from your vehicle’s upholstery.


424


Do not clean your vehicle using the following cleaners or techniques: (cid:127) Never use a knife or any other sharp object


to remove a soil from any interior surface.


(cid:127) Never use a stiff brush. It can cause damage


to your vehicle’s interior surfaces. (cid:127) 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:127) 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:127) Do not heavily saturate your upholstery


while cleaning.


(cid:127) Damage to your vehicle’s interior may result from the use of many organic solvents such as naptha, alcohol, etc.


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: (cid:127) 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.


(cid:127) 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.


425


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 may 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 your leather.


426


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 455.


427


Washing Your Vehicle The paint finish on the vehicle provides beauty, depth of color, gloss retention, and durability. The best way to preserve the vehicle’s finish is to keep it clean by washing it often with lukewarm or cold water. Do not wash the vehicle in the direct rays of the sun. Use a car washing soap. Do not use strong soaps or chemical detergents. Be sure to rinse the vehicle well, removing all soap residue completely. Approved cleaning products can be obtained from your dealer. See Vehicle Care/Appearance Materials on page 433. Do not 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 the vehicle.


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 428.


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. See Vehicle Care/Appearance Materials on page 433. 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.


428


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 glass cleaning liquid or powder and water solution. The windshield is clean if beads do not form when it is rinsed 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.


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.


429


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: If you drive your vehicle through an 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. Do not 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.


If you use strong soaps, chemicals,


Aluminum or Chrome-Plated Wheels 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. 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 GM-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.


430


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. Larger areas of finish damage can be corrected in your dealer’s body and paint shop.


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.


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.


431


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 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, 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.


432


Vehicle Care/Appearance Materials


Description


Usage


Description


Usage


Swirl Remover Polish


Polishing Cloth Wax-Treated


Tar and Road Oil Remover


Chrome Cleaner and Polish


White Sidewall Tire Cleaner


Vinyl Cleaner


Glass Cleaner


Chrome and Wire Wheel Cleaner


Finish Enhancer


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.


Removes dirt, grime, smoke and fingerprints.


Removes dirt and grime from chrome wheels and wire wheel covers.


Removes dust, fingerprints, and surface contaminants. Spray on and wipe off.


Cleaner Wax


Foaming Tire Shine Low Gloss


Wash Wax Concentrate


Spot Lifter


Odor Eliminator


Removes swirl marks, fine scratches, and other light surface contamination.


Removes light scratches and protects finish.


Cleans, shines, and protects in one step. 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.


433


Vehicle Identification


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 Certification/Tire and Service Parts labels and the certificates of title and registration. Engine Identification The eighth character in the VIN is the engine code. This code will help you identify your vehicle’s engine, specifications, and replacement parts.


434


Service Parts Identification Label You will find this label on the inside of the glove box. It is very helpful if you ever need to order parts. On this label, you will find the following: (cid:127) VIN (cid:127) Model designation (cid:127) Paint information (cid:127) 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 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. Your vehicle has an air bag system. Before attempting to add anything electrical to your vehicle, see Servicing Your Airbag-Equipped Vehicle on page 92.


Windshield Wiper Fuses The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow or ice, the wiper will stop until the motor cools. If the overload is caused by some electrical problem, be sure to get it fixed.


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.


Engine Compartment Fuse Block


The engine compartment fuse block is located on the driver’s side of the engine compartment. See Engine Compartment Overview on page 332
for more information on location. To remove the cover, push in on the tab on the end of the cover and lift. To reinstall the cover, line up the tab and push down on the cover until the tab clicks into place.


435


Fuses


DRL AUX PWR 1
STOP BLWR S/ROOF


436


Usage


Daylight Running Lamps Accessory Power 1
Brake Switch, Stoplamps Climate Control Fan Sunroof (If Equipped)


Fuses


A/C


PWR/SEAT


RT HDLP


Usage


Air Conditioning Control Head, Power Seats Power Seat Circuit Breaker (If Equipped) Passenger’s Side Headlamp


Fuses


LT HDLP AUX PWR 2
FOG/LAMP A/C CMPRSR WSW RVC PWR/WNDW FUEL/PUMP STRTR WPR


ABS 2


DR/LCK ETC


02 SNSR


CRUISE


HTD/SEAT


AIRBAG


Usage


Driver’s Side Headlamp Accessory Power 2
Fog Lamps (If Equipped) Air Conditioning Compressor Wiper/Washer Switch Regulated Voltage Control Power Windows (If Equipped) Fuel Pump Starter Solenoid Relay Wiper Anti-lock Brake System 2
(ABS Pump) Power Door Locks (If Equipped) Electronic Throttle Control (ETC) Oxygen Sensors, Air Injection Reactor (AIR) Relay Cruise Control Switch, Inside Rearview Mirror, Transfer Case Control Module, Brake Switch, Clutch Disable Heated Seat (If Equipped) Supplemental Inflatable Restraint System, Sensing and Diagnostic Module


Fuses


ABS


BCK/UP FRT/AXLE TRN/HAZRD REAR


ERLS


PCMI TRANS


IGN


INJ


ABS 1


FRT PRK LAMP


REAR PRK LAMP


Usage


Anti-lock Brake System (ABS), ABS module, Four-Wheel Drive, Gravity Sensor Back-up Lights Front Axle Actuator


Rear Turn/Hazard Lights


Mass Air Flow (MAF) Sensor, Can Purge Solenoid, Air Injection Reactor (AIR) Relay

Loading...
x