2004 Cadillac XLR Owners Manual

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ﬂuid is there. If it is low, add water to take care of that ﬁrst. If you do not, explosive gas could be present. Battery ﬂuid contains acid that can burn you. Do not get it on you. If you accidentally get it in your eyes or on your skin, ﬂush the place with water and get medical help immediately. Notice: If you leave your radio or other accessories on during the jump starting procedure, they could be damaged. The repairs would not be covered by your warranty. Always turn off your radio and other accessories when jump starting your vehicle. 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or in the accessory power outlet. Turn off the radio and all lamps that aren’t needed. This will avoid sparks and help save both batteries. And it could save your radio! 4. Open the hoods and locate the batteries. Find the positive (+) and negative (- ) terminal locations on each vehicle. See EngineCompartmentOverview onpage5-12 for more information on location. {CAUTION: An electric fan can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan. 5-40 {CAUTION: Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running. 5. Check that the jumper cables don’t have loose or missing insulation. If they do, you could get a shock. The vehicles could be damaged, too. Before you connect the cables, here are some basic things you should know. Positive (+) will go to positive (+) or to a remote positive (+) terminal if the vehicle has one. Negative (- ) will go to a heavy, unpainted metal engine part or to a remote negative (- ) terminal if the vehicle has one. Don’t connect positive (+) to negative (- ) or you’ll get a short that would damage the battery and maybe other parts, too. And don’t connect the negative (- ) cable to the negative (- ) terminal on the dead battery because this can cause sparks. 6. Connect the red positive (+) cable to the positive (+) terminal of the dead battery. Use a remote positive (+) terminal if the vehicle has one. 5-41 7. Don’t let the other end touch metal. Connect it to the positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one. 8. Now connect the black negative (- ) cable to the negative (- ) terminal of the good battery. Use a remote negative (- ) terminal if the vehicle has one. Don’t let the other end touch anything until the next step. The other end of the negative (- ) cable doesn’t go to the dead battery. It goes to a heavy, unpainted metal engine part or to a remote negative (- ) terminal on the vehicle with the dead battery. 5-42 9. Connect the other end of the negative (- ) cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less. 10. Now start the vehicle with the good battery and run the engine for a while. 11. Try to start the vehicle that had the dead battery. If it won’t start after a few tries, it probably needs service. Notice: If the jumper cables are removed in the wrong order, electrical shorting may occur and damage the vehicle. The repairs would not be covered by your warranty. Remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal. 5-43 To disconnect the jumper cables from both vehicles, do the following: 1. Disconnect the black negative (- ) cable from the vehicle that had the dead battery. 2. Disconnect the black negative (- ) cable from the vehicle with the good battery. 3. Disconnect the red positive (+) cable from the vehicle with the good battery. 4. Disconnect the red positive (+) cable from the other vehicle. Jumper Cable Removal A. Heavy, Unpainted Metal Engine Part B. Good Battery C. Dead Battery 5-44 Rear Axle When to Check Lubricant It is not necessary to regularly check rear axle ﬂuid unless you suspect there is a leak or you hear an unusual noise. A ﬂuid loss could indicate a problem. Have it inspected and repair. How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the ﬁller plug hole, you will need to add some lubricant. Add enough lubricant to raise the level to the bottom of the ﬁller plug hole. What to Use To add lubricant when the level is low, use SAE 75W–90 Synthetic Gear Lubricant (GM Part No. 12378261) or equivalent meeting GM Speciﬁcation 9986115. To completely reﬁll after draining, add 4 ounces (118 ml) of Limited-Slip Differential Lubricant Additive (GM Part No. 1052358) or equivalent. Then ﬁll to the bottom of the ﬁller plug hole with the Synthetic Gear Lubricant. 5-45 Headlamp Aiming Your vehicle has a visual optical headlamp aiming system equipped with horizontal aim indicators. The aim has been preset at the factory and should need no further adjustment. This is true even though your horizontal aim indicators may not fall exactly on the “0” (zero) marks on their scales. If your vehicle is damaged in an accident, the headlamp aim may be affected. Aim adjustment to the low beam may be necessary if it is difficult to see lane markers (for horizontal aim), or if oncoming drivers ﬂash their high beams at you (for vertical aim). If you believe your headlamps need to be re-aimed, we recommend that you take your vehicle to your dealer for service. However, it is possible for you to re-aim your headlamps as described in the following procedure. 5-46 Notice: To make sure your headlamps are aimed properly, read all the instructions before beginning. Failure to follow these instructions could cause damage to headlamp parts. The vehicle should be properly prepared as follows: • The vehicle should be placed so the headlamps are 25 ft. (7.6 m) from a light colored wall or other ﬂat surface. • The vehicle must have all four tires on a perfectly level surface which is level all the way to the wall or other ﬂat surface. • The vehicle should be placed so it is perpendicular to the wall or other ﬂat surface. • The vehicle should not have any snow, ice or mud attached to it. • The vehicle should be fully assembled and all other work stopped while headlamp aiming is being done. • The vehicle should be normally loaded with a full tank of fuel and one person or 160 lbs (75 kg) on the driver’s seat. • Tires should be properly inﬂated. • Start the vehicle and rock it to level the suspension. Headlamp aiming is done with the vehicle low beam lamps. The high beam lamps will be correctly aimed if the low beam lamps are aimed properly. The headlamp aiming devices are under the hood near the headlamps. If you believe your headlamps need vertical (up/down) adjustment, follow the vertical aiming procedure. Adjustment screws can be turned with an E8 Torx ® socket or T15 Torx screwdriver. Headlamp Vertical Aiming Notice: Horizontal aiming must be performed before making any adjustments to the vertical aim. Adjusting the vertical aim ﬁrst will result in an incorrect headlamp aim. 1. Find the aim dot on the lens of the low beam lamps. 2. Measure the distance from the ground to the aim dot on each low beam lamp. Record this distance. 3. At the wall or other ﬂat surface, measure from the ground upward the recorded distance from Step 2 and draw or tape a horizontal line the width of the vehicle. 5-47 Notice: Do not cover a headlamp to improve beam cut-off when aiming. Covering a headlamp may cause excessive heat build-up which may cause damage to the headlamp. 4. Turn on the low-beam headlamps and place a piece of cardboard or equivalent in front of the headlamp not being aimed. This should allow only the beam of light from the headlamp being aimed to be seen on the ﬂat surface. 5. Turn the vertical aiming screw until the headlamp beam is aimed to the horizontal tape line. The top edge of the cut-off should be positioned at the bottom edge of the horizontal tape line. 5-48 6. Repeat Steps 4 and 5 for the opposite headlamp. To replace the wiper blade assembly, do the following: 1. Place the vehicle in accessory mode and turn the wipers on. Position the wipers on the windshield in the mid-wipe position. Then with a door open, turn the vehicle off. Bulb Replacement It is recommended that all bulbs be replaced by your dealer. Windshield Wiper Blade Replacement Windshield wiper blades should be inspected at least twice a year for wear or cracking. See “Wiper Blade Check” under ScheduledMaintenanceonpage6-4. It’s a good idea to clean or replace the wiper blade assembly on a regular basis or when worn. For proper windshield wiper blade length and type, see Normal MaintenanceReplacementPartsonpage6-13. 2. Tip the blade up and push down on the tab to release the wiper blade assembly. 3. To install, align the wiper blade with the loop on the wiper blade assembly, and push up to snap it into place. 5-49 CAUTION: (Continued) • 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. • Worn, old tires can cause accidents. If your tread is badly worn, or if your tires have been damaged, replace them. Tire Sidewall Labeling Useful information about a tire is molded into its sidewall. The following illustration shows an example of a passenger car tire sidewall. Tires Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your GM Warranty booklet for details. For additional information refer to the tire manufacturer’s booklet included with your vehicle’s Owner’s Manual. {CAUTION: Poorly maintained and improperly used tires are dangerous. • Overloading your 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” in the Index. • 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. Tire pressure should be checked when your tires are cold. CAUTION: (Continued) 5-50 A. Tire Size B. Tire Performance Criteria Speciﬁcation (TPC Spec) C. Department of Transportation (DOT) D. Tire Identiﬁcation Number (TIN) E. Tire Ply Material F. Uniform Tire Quality Grading (UTQG) G. Maximum Cold Inﬂation Load Limit (A) Tire Size: The tire size code 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) Tire Performance Criteria Speciﬁcation (TPC Spec): 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) Department of Transportation (DOT): The Department of Transportation (DOT) code indicates that the tire is in compliance with the U.S. Department of Transportation Motor Vehicle Safety Standards. 5-51 Tire Size Codes The following illustration shows an example of a typical passenger car tire size. A. P-Metric Tire B. Tire Width C. Aspect Ratio D. Construction Code E. Rim Diameter F. Service Description (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 UniformTireQualityGradingonpage5-64. (G) Maximum Cold Inﬂation Load Limit: Maximum load that can be carried and the maximum pressure needed to support that load. For more information on recommended tire pressure see Inﬂation-TirePressure onpage5-57and LoadingYourVehicleonpage4-32. 5-52 (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% 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 the speed rating of a tire. The load range represents the load carrying 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”. 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, 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. Cold Inﬂation Pressure: The amount of air pressure in a tire, measured in pounds per square inch (psi) before a tire has built up heat from driving. See Inﬂation-TirePressureonpage5-57. 5-53 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 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 YourVehicleonpage4-32. GAWR FRT: Gross Axle Weight Rating for the front axle, see LoadingYourVehicleonpage4-32. GAWR RR: Gross Axle Weight Rating for the rear axle, see LoadingYourVehicleonpage4-32. 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. There are 6.9 kPa’s to one psi. 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 pounds (68 kg). See LoadingYourVehicleonpage4-32. Occupant Distribution: Designated seating positions. Outward Facing Sidewall: The side of a 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. 5-54 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 and shown on the tire placard. See Inﬂation-TirePressure onpage5-57and LoadingYourVehicleonpage4-32. 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 2/32 inch of tread remains. See WhenIt IsTimeforNewTiresonpage5-62. 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 UniformTireQuality Gradingonpage5-64. Vehicle Capacity Weight: The number of designated seating positions multiplied by 150 lbs. (68 kg) plus the rated cargo load. See LoadingYourVehicle onpage4-32. 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 original equipment tire size and recommended inﬂation pressure. See LoadingYour Vehicleonpage4-32. 5-55 Run-Flat Tires Your vehicle, when new, had run-ﬂat tires. There’s no spare tire, no tire changing equipment and no place to store a tire in the vehicle. Run-ﬂat tires perform so well without any air that a Tire Pressure Monitor (TPM) is used to alert you if a tire has lost pressure. If a tire goes ﬂat, you won’t need to stop on the side of the road to change the tire. You can just keep on driving. The shorter the distance you drive and the slower the speed, the greater the chance that the tire will not have to be replaced. If you drive on a deﬂated run- ﬂat tire for 50 miles (80 km) or less and at speeds of 55 mph (90 km/h) or less, there is a good chance that the tire can be repaired. The tire can operate effectively with no air pressure for up to 200 miles (320 km) at speeds up to 55 mph (90 km/h), but the tire would then have to be replaced. When a tire is ﬁlled with air, it provides a cushion between the road and the wheel. Because you won’t have this cushion when driving on a deﬂated tire, try to avoid potholes that could damage your wheel and require replacement of it. Some road hazards can damage a tire beyond repair. This damage could occur even before you’ve driven on the tire in a deﬂated condition. When a tire has been damaged, or if you’ve driven any distance on a run-ﬂat tire, check with an authorized run-ﬂat tire service center to determine whether the tire can be repaired or should be replaced. To maintain your vehicle’s run-ﬂat feature, all replacement tires must be self-supporting tires. As soon as possible, contact the nearest authorized GM or run-ﬂat servicing facility for inspection and repair or replacement. To locate the nearest GM or run-ﬂat servicing facility, call Roadside Assistance. For phone numbers and Roadside Service details see RoadsideServiceonpage7-5. {CAUTION: Run-ﬂat tires are constructed differently than other tires and could explode during improper service. You or others could be injured or killed if you attempt to repair, replace, dismount, or mount a run-ﬂat tire. Let only an authorized run-ﬂat service center repair, replace, dismount and mount run-ﬂat tires. 5-56 The valve stems on your run-ﬂat tires have sensors that are part of the Tire Pressure Monitor System (TPMS). See TirePressureMonitorSystemonpage5-58. These sensors contain batteries which are designed to last for 10 years under normal driving conditions. See your dealer if you ever need to have a wheel replaced, or if the sensors ever need replacement. Notice: Using liquid sealants can damage the tire valves and tire pressure monitor sensors in your run-ﬂat tires. This damage would not be covered by warranty. Don’t use liquid sealants in your run-ﬂat tires. Inﬂation - Tire Pressure The Tire and Loading Information label, shows the correct inﬂation pressures for your tires when they’re cold. “Cold” means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). See LoadingYourVehicleonpage4-32 for more information on the Tire and Loading Information label. Notice: Don’t let anyone tell you that underinﬂation or overinﬂation is all right. It’s not. If your tires don’t have enough air (underinﬂation), you can get the following: • Too much ﬂexing • Too much heat • Tire overloading • Bad wear • Bad handling • Bad fuel economy If your tires have too much air (overinﬂation), you can get the following: • Unusual wear • Bad handling • Rough ride • Needless damage from road hazards 5-57 When to Check Check your tires once a month or more. How to Check Use a good quality pocket-type gage to check tire pressure. You can’t tell if your tires are properly inﬂated simply by looking at them. Radial tires may look properly inﬂated even when they’re underinﬂated. Check tire inﬂation pressure when the tire is 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. Tire Pressure Monitor (TPM) Your vehicle has a Tire Pressure Monitor (TPM) that sends tire pressure information to the Driver Information Center (DIC). Using the DIC control buttons, the driver is able to check tire pressure levels in all four road tires. See TirePressureMonitorSystemonpage5-58 and DICControlsandDisplaysonpage3-57 for additional information. Tire Pressure Monitor System The Tire Pressure Monitor (TPM) System on your vehicle, uses radio and sensor technology to check tire pressure levels. Sensors, mounted on each tire and wheel assembly transmit tire pressure readings to a receiver located in the vehicle. The TPM sensors transmit tire pressure readings once every 60 seconds while the vehicle is being driven and once every 60 minutes when the vehicle is stationary for more than 15 minutes. Using the Driver Information Center (DIC), tire pressure levels can be viewed by the driver. The TPM system also uses the DIC to warn the driver when air pressure, in one or more tires, falls below 25 psi (172 kPa) or is above 38 psi (262 kPa). For additional information and details about the DIC operation and displays see DICControlsand Displaysonpage3-57and DICWarningsandMessages onpage3-59. 5-58 A low tire warning light also appears on the instrument panel cluster when a low tire condition exists. The DIC message, CHECK TIRE PRESSURE and the low tire pressure warning light will be shown each time the engine is started and stay on until the low tire condition is corrected. When the tire pressure monitoring system warning light is lit, one or more of your tires is signiﬁcantly under-inﬂated. You should stop and check your tires as soon as possible, and inﬂate them to the proper pressure as indicated on the vehicle’s tire information placard. Driving on a signiﬁcantly under-inﬂated tire causes the tire to overheat and can lead to tire failure. Under-inﬂation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Each tire, including the spare, should be checked monthly when cold and set to the recommended inﬂation pressure as speciﬁed in the vehicle placard and owner’s manual. The Tire and Loading Information Label (tire information placard) is either on the rear edge of the driver’s door or the driver’s door jamb near the latch. This label shows the size of your vehicle’s original tires and the correct inﬂation pressure for your vehicle’s tires when they are cold. See Inﬂation-TirePressureonpage5-57. Your vehicle’s TPM system can alert you about a low or high tire pressure condition but it does not replace normal tire maintenance. See TireInspectionand Rotationonpage5-60 Each TPM sensor has a unique identiﬁcation code that is matched to one of the four tire positions on your vehicle. The tire and wheel assembly positions are, left front (LF); right front (RF); right rear (RR) and left rear (LR). Any time you rotate your vehicle’s tires or replace one or more TPM sensors, the identiﬁcation codes will need to be matched to the new tire and wheel position. The TPM matching process is performed in a speciﬁc sequence and time limit. A special tool is also required. See your dealer for service. The SVC TIRE MONITOR message is displayed when the TPM system is malfunctioning. For example, one or more TPM sensors may be inoperable or missing. See your dealer for service. 5-59 The TPM system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry and Science Canada. This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry and Science Canada. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation of the device. Changes or modiﬁcations to this system by other than an authorized service facility could void authorization to use this equipment. Tire Inspection and Rotation Your vehicle’s tires should be inspected regularly for wear. 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 WhenItIsTime forNewTiresonpage5-62 and WheelReplacement onpage5-66 for additional information. 5-60 When rotating your vehicle’s tires, always use the correct rotation pattern shown here. After the tires have been rotated, adjust the front and rear inﬂation pressures as shown on the tire and loading information label, see Inﬂation-TirePressureonpage5-57 and LoadingYourVehicleonpage4-32. Vehicles equipped with the Tire Pressure Monitor (TPM) system will need to have the sensors reset after a tire rotation is performed. A special tool is needed to reset the sensor identiﬁcation codes. See your dealer for service. Make certain that all wheel nuts are properly tightened. See WheelReplacementonpage5-66 and “Wheel Nut Torque” under CapacitiesandSpeciﬁcations onpage5-91. {CAUTION: Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause a crash. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off. 5-61 You need a new tire if any of the following statements are true: • You can see the indicators at three or more places around the tire. • You can see cord or fabric showing through the tire’s rubber. • The tread or sidewall is cracked, cut or snagged deep enough to show cord or fabric. • The tire has a bump, bulge or split. • The tire has a puncture, cut or other damage that can’t be repaired well because of the size or location of the damage. When It Is Time for New Tires One way to tell when it’s time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. 5-62 Buying New Tires To ﬁnd out what kind and size of tires you need, look at the Tire and Loading Information label. For information about this label and where to ﬁnd it, see Loading YourVehicleonpage4-32. The tires installed on your vehicle when it was new had a Tire Performance Criteria Speciﬁcation (TPC Spec) number on each tire’s sidewall. When you get new tires, GM recommends that you get tires with that same TPC Spec number. That way your vehicle will continue to have tires that are designed to give proper endurance, handling, speed rating, load range, traction, ride, tire pressure monitoring system and other things during normal service on your vehicle. If your tires have an all-season tread design, the TPC number will be followed by an “MS” (for mud and snow). Whenever you replace your tires with those not having a TPC Spec number, make sure they are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires. If you replace your vehicle’s tires with those not having a TPC Spec number, the tire pressure monitoring system may give an inaccurate low-pressure warning. Non-TPC Spec tires may give a low-pressure warning that is higher or lower than the proper warning level you would get with TPC Spec numbered tires. {CAUTION: Mixing tires could cause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes may also cause damage to your vehicle. Be sure to use the same size and type tires on all wheels. {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. 5-63 Uniform Tire Quality Grading Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance. (This applies only to vehicles sold in the United States.) The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading system does not apply to deep tread, winter-type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards. Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a speciﬁed government test course. For example, a tire graded 150 would wear one and a half (1.5) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart signiﬁcantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate. 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. 5-64 Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. Scheduled wheel alignment and wheel balancing are not needed. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced. 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. 5-65 Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer if any of these conditions exist. Your dealer will know the kind of wheel you need. 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. {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. 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 clearance to the body and chassis. 5-66 {CAUTION: {CAUTION: Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to become loose and even come off. This could lead to a crash. Be sure to use the correct wheel nuts. If you have to replace them, be sure to get new GM original equipment wheel nuts. Notice: Improperly tightened wheel nuts can 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. Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause a crash. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off. {CAUTION: Never use oil or grease on studs or the threads of the wheel nuts. If you do, the wheel nuts might come loose and the wheel could fall off, causing a crash. 5-67 Used Replacement Wheels Tire Chains {CAUTION: {CAUTION: Putting a used wheel on your vehicle is dangerous. You can’t know how it’s been used or how far it’s been driven. It could fail suddenly and cause a crash. If you have to replace a wheel, use a new GM original equipment wheel. Don’t use tire chains. There’s not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension or other vehicle parts. The area damaged by the tire chains could cause you to lose control of your vehicle and you or others may be injured in a crash. Use another type of traction device only if its manufacturer recommends it for use on your vehicle and tire size combination and road conditions. Follow that manufacturer’s instructions. To help avoid damage to your vehicle, drive slowly, readjust or remove the device if it’s contacting your vehicle, and don’t spin your wheels. If you do ﬁnd traction devices that will ﬁt, install them on the rear tires. 5-68 Lifting Your Vehicle {CAUTION: Lifting a vehicle can cause an injury. The vehicle can slip off the jack and roll over you or other people. You and they could be badly injured. Find a level place to lift your vehicle. To help prevent the vehicle from moving: 1. Set the parking brake ﬁrmly. 2. Put an automatic transmission shift lever in PARK (P). 3. Turn off the engine. To be even more certain the vehicle won’t move, you can put blocks in front of and behind the wheels. {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 place the jack in the proper location before raising the vehicle. If you ever use a jack to lift your vehicle, follow the instructions that came with the jack, and be sure to use the correct lifting points to avoid damaging your vehicle. 5-69 Lifting From the Front Notice: Lifting your vehicle improperly can damage your vehicle and result in costly repairs not covered by your warranty. To lift your vehicle properly, follow the advice in this part. To help prevent vehicle damage: • Be sure to place a block or pad between the jack and the vehicle. • Make sure the jack you’re using spans at least two crossmember ribs. • Lift only in the areas shown in the following pictures. For additional information, see your dealer and the Cadillac XLR service manual. The front lifting points can be accessed from either side of your vehicle, behind the front tires. 5-70 1. Locate the front lifting points (A), according to the illustration shown. 3. Lift the vehicle with the jack, making sure the jack spans at least two of the crossmember ribs (B). 2. Be sure to place a block or pad between the jack and the vehicle. 5-71 Lifting From the Rear The rear lifting points can be accessed from the rear of the vehicle, on either the driver’s or passenger’s side. 1. Locate the rear lifting points (A), according to the illustration shown. 2. Be sure to place a block or pad between the jack and the vehicle. 5-72 If a Tire Goes Flat It’s unusual for a tire to “blow out” while you’re driving, especially if you maintain your tires properly. If air goes out of a tire, it’s much more likely to leak out slowly. See Tiresonpage5-50 for additional information. Your vehicle, when new, had run-ﬂat tires. This type of tire can operate effectively with no air pressure, so you won’t need to stop on the side of the road to change a ﬂat tire. You can just keep on driving. The shorter the distance you drive and the slower the speed, the greater the chance that the run-ﬂat tire will not have to be replaced. Run-ﬂat tires perform so well without any air that a Tire Pressure Monitor (TPM) is used to alert you if a tire has lost pressure. See Run-FlatTires onpage5-56 and TirePressureMonitorSystemon page5-58. 5-73 3. Lift the vehicle with the jack, making sure the jack spans at least two of the crossmember ribs (B). For more information, see DoingYourOwnService Workonpage5-3. {CAUTION: {CAUTION: When the TIRE FLAT MAX SPD 55, REDUCED HNDLG message is displayed on the Driver Information Center, your vehicle’s handling capabilities will be reduced during severe maneuvers. If you drive too fast, you could lose control of your vehicle. You or others could be injured. Don’t drive over 55 mph (90 km/h) when the TIRE FLAT MAX SPD 55, REDUCED HNDLG message is displayed. Drive cautiously and check your tire pressures as soon as you can. If the TPM system detects a tire pressure below 5 psi (34 kPa), the TIRE FLAT MAX SPD 55, REDUCED HNDLG warning message is displayed on the Driver Information Center (DIC). See DICControlsand Displaysonpage3-57and DICWarningsandMessages onpage3-59 for information and details about the DIC operation and displays. Special tools and procedures are required to service a run-ﬂat tire. If these special tools and procedures aren’t used you or others could be injured and your vehicle could be damaged. Always be sure the proper tools and procedures, as described in the service manual, are used. Notice: Using liquid sealants can damage the tire valves and tire pressure monitor sensors in your run-ﬂat tires. This damage would not be covered by warranty. Don’t use liquid sealants in your run-ﬂat tires. To order a service manual, see ServicePublications OrderingInformationonpage7-11. If a tire goes ﬂat, the stability control system will turn on automatically even if it was disabled by the driver. When a ﬂat tire condition exists the Stabilitrak® system cannot be turned off. See Stabilitrak® Systemon page4-11. 5-74 Appearance Care Remember, cleaning products can be hazardous. Some are toxic. Others can burst into ﬂames if you strike a match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anything from a container to clean your vehicle, be sure to follow the manufacturer’s warnings and instructions. And always open your doors or windows when you are cleaning the inside. Never use these to clean your vehicle: • Gasoline • Benzene • Naphtha • Carbon Tetrachloride • Acetone • Paint Thinner • Turpentine • Lacquer Thinner • Nail Polish Remover They can all be hazardous — some more than others — and they can all damage your vehicle, too. Do not use any of these unless this manual says you can. In many uses, these will damage your vehicle: • Alcohol • Laundry Soap • Bleach • Reducing Agents Cleaning the Inside of Your Vehicle Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl, leather, plastic and painted surfaces with a clean, damp cloth. Cleaning Fabric/Carpet Your dealer has cleaners for the cleaning of fabric and carpet. They will clean normal spots and stains very well. You can get GM-approved cleaning products from your dealer. See VehicleCare/AppearanceMaterialson page5-82. 5-75 Here are some cleaning tips: • Always read the instructions on the cleaner label. • Clean up stains as soon as you can – before they set. • Carefully scrape off any excess stain. • Use a clean cloth or sponge, and change to a clean area often. A soft brush may be used if stains are stubborn. • If a ring forms on fabric after spot cleaning, clean the entire area immediately or it will set. Using Cleaner on Fabric 1. Vacuum and brush the area to remove any loose dirt. 2. Always clean a whole trim panel or section. Mask surrounding trim along stitch or welt lines. 3. Follow the directions on the container label. 4. Apply cleaner with a clean sponge. Don’t saturate the material and don’t rub it roughly. 5. As soon as you’ve cleaned the section, use a sponge to remove any excess cleaner. 6. Wipe cleaned area with a clean, water–dampened towel or cloth. 7. Wipe with a clean cloth and let dry. 5-76 Special Fabric Cleaning Problems Stains caused by such things as catsup, coffee (black), egg, fruit, fruit juice, milk, soft drinks, vomit, urine and blood can be removed as follows: 1. Carefully scrape off excess stain, then sponge the soiled area with cool water. 2. If a stain remains, follow the cleaner instructions described earlier. 3. If an odor lingers after cleaning vomit or urine, treat the area with a water/baking soda solution: 1 teaspoon (5 ml) of baking soda to 1 cup (250 ml) of lukewarm water. 4. Let dry. Stains caused by candy, ice cream, mayonnaise, chili sauce and unknown stains can be removed as follows: 1. Carefully scrape off excess stain. 2. First, clean with cool water and allow to dry completely. 3. If a stain remains, follow the cleaner instructions described earlier. Cleaning Vinyl Use warm water and a clean cloth. • Rub with a clean, damp cloth to remove dirt. You may have to do this more than once. • Things like tar, asphalt and shoe polish will stain if you don’t get them off quickly. Use a clean cloth and vinyl cleaner. See your dealer for this product. Cleaning Leather Use a soft cloth with lukewarm water and a mild soap or saddle soap and wipe dry with a soft cloth. Then, let the leather dry naturally. Do not use heat to dry. • For stubborn stains, use a leather cleaner. • Neveruse oils, varnishes, solvent-based or abrasive cleaners, furniture polish or shoe polish on leather. • Soiled or stained leather should be cleaned immediately. If dirt is allowed to work into the ﬁnish, it can harm the leather. Cleaning the Top of the Instrument Panel Use only mild soap and water to clean the top surfaces of the instrument panel. Sprays containing silicones or waxes may cause annoying reﬂections in the windshield and even make it difficult to see through the windshield under certain conditions. Cleaning the Interior Plastic Components Use only a mild soap and water solution on a soft cloth or sponge. Commercial cleaners may affect the surface ﬁnish. Cleaning Wood Panels Use a clean cloth moistened in warm, soapy water (use mild dish washing soap). Dry the wood immediately with a clean cloth. Cleaning the Speaker Covers Vacuum around a speaker cover gently, so that the speaker won’t be damaged. Clean spots with just water and mild soap. 5-77 Cleaning Glass Surfaces Glass should be cleaned often. GM Glass Cleaner or a liquid household glass cleaner will remove normal tobacco smoke and dust ﬁlms on interior glass. See VehicleCare/AppearanceMaterialsonpage5-82. Notice: If you use abrasive cleaners when cleaning glass surfaces on your vehicle, you could scratch the glass and/or cause damage to the rear window defogger and the integrated radio antenna. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner. Care of Safety Belts Keep belts clean and dry. {CAUTION: Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water. Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth at least every six months. During very cold, damp weather more frequent application may be required. See Recommended FluidsandLubricantsonpage6-11. Cleaning the Outside of Your Vehicle The paint ﬁnish on your vehicle provides beauty, depth of color, gloss retention and durability. Washing Your Vehicle The best way to preserve your vehicle’s ﬁnish is to keep it clean by washing it often with lukewarm or cold water. Don’t wash your vehicle in the direct rays of the sun. Use a car washing soap. Don’t use strong soaps or chemical detergents. Be sure to rinse the vehicle well, removing all soap residue completely. You can get GM-approved cleaning products from your dealer. See VehicleCare/AppearanceMaterialsonpage5-82. 5-78 Don’t use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be ﬂushed promptly and not allowed to dry on the surface, or they could stain. Dry the ﬁnish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting. High pressure car washes may cause water to enter your vehicle. Cleaning Exterior Lamps/Lenses Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under “Washing Your Vehicle.” Finish Care Occasional waxing or mild polishing of your vehicle by hand may be necessary to remove residue from the paint ﬁnish. You can get GM-approved cleaning products from your dealer. See VehicleCare/Appearance Materialsonpage5-82. If your vehicle has a “basecoat/clearcoat” paint ﬁnish. The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint ﬁnish. Notice: Machine compounding or aggressive polishing on a basecoat/clearcoat paint ﬁnish may damage it. Use only non-abrasive waxes and polishes that are made for a basecoat/clearcoat paint ﬁnish on your vehicle. Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage your vehicle’s ﬁnish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint ﬁnish looking new by keeping your vehicle garaged or covered whenever possible. 5-79 Cleaning Windshield and Wiper Blades If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax, sap or other material may be on the blade or windshield. Clean the outside of the windshield with a full-strength glass cleaning liquid. The windshield is clean if beads do not form when you rinse it with water. Grime from the windshield will stick to the wiper blades and affect their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Check the wiper blades and clean them as necessary; replace blades that look worn. Cleaning Aluminum Wheels Your vehicle is equipped with aluminum wheels. Keep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied. The surface of these wheels is similar to the painted surface of your vehicle. Don’t use strong soaps, chemicals, abrasive polishes, abrasive cleaners, cleaners with acid, or abrasive cleaning brushes on them because you could damage the surface. Do not use chrome polish on aluminum wheels. Don’t take your vehicle through an automatic car wash that has silicone carbide tire cleaning brushes. These brushes can also damage the surface of these wheels. Cleaning Tires To clean your tires, use a stiff brush with tire cleaner. Notice: Using petroleum-based tire dressing products on your vehicle may damage the paint ﬁnish and/or tires. When applying a tire dressing, always wipe off any overspray from all painted surfaces on your vehicle. Finish Damage Any stone chips, fractures or deep scratches in the ﬁnish should be repaired right away. Minor chips and scratches can be repaired with touch-up materials avaliable from your dealer or other service outlets. Larger areas of ﬁnish damage can be corrected in your dealer’s body and paint shop. 5-80 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 your vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, GM will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs ﬁrst. 5-81 Vehicle Care/Appearance Materials See your GM dealer for more information on purchasing the following products. Vehicle Care/Appearance Materials Description 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 Usage Interior and exterior polishing cloth. Removes tar, road oil and asphalt. Use on chrome or stainless steel. Removes soil and black marks from whitewalls. Cleans vinyl tops, upholstery and convertible tops. Removes dirt, grime, smoke and ﬁngerprints. Removes dirt and grime from chrome wheels and wire wheel covers. Removes dust, ﬁngerprints, and surface contaminants. Spray on wipe off. 5-82 Vehicle Care/Appearance Materials (cont’d) Description Usage Cleaner Wax Swirl Remover Polish Wash Wax Concentrate Foaming Tire Shine Low Gloss Removes swirl marks, ﬁne scratches and other light surface contamination. Removes light scratches and protects ﬁnish. Cleans, shines and protects in one easy step, no wiping necessary. Medium foaming shampoo. Cleans and lightly waxes. Biodegradable and phosphate free. Quickly and easily removes spots and stains from carpets, vinyl and cloth upholstery. Odorless spray odor eliminator used on fabrics, vinyl, leather and carpet. See your General Motors parts department for these products. See RecommendedFluidsandLubricants onpage6-11. Odor Eliminator Spot Lifter 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 Vehicle Certiﬁcation and Service Parts labels and the certiﬁcates of title and registration. Engine Identiﬁcation The 8th character in your VIN is the engine code. This code will help you identify your engine, speciﬁcations and replacement parts. Service Parts Identiﬁcation Label You will ﬁnd this label on the under side of the spare tire cover in the trunk. It is very helpful if you ever need to order parts. On this label is: • your VIN, • the model designation, • paint information and • a list of all production option and special equipment. Be sure that this label is not removed from the vehicle. 5-83 Electrical System Add-On Electrical Equipment Notice: Don’t add anything electrical to your vehicle unless you check with your dealer ﬁrst. Some electrical equipment can damage your vehicle and the damage wouldn’t be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Your vehicle has an air bag system. Before attempting to add anything electrical to your vehicle, see ServicingYourAirBag-EquippedVehicleonpage1-48. Windshield Wiper Fuses The windshield wiper motor is protected by an internal circuit breaker. If the wiper motor overheats due to heavy snow, the wipers will stop until the motor cools and will then restart. A fuse powers the wiper motor. If the fuse blows, there is an electrical problem. Be sure to have it ﬁxed. Power Windows and Other Power Options Circuit breakers protect the power windows and power seats. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is ﬁxed or goes away. 5-84 Instrument Panel Fuse Block The panel fuse block is located on the passenger’s side of the vehicle, under the instrument panel and under the toe-board. Remove the carpet and toe-board covering to access the fuse block by pulling at the top of each corner of the panel. Then turn the fuse block door knob counterclockwise and pull the door to access the fuses. 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 a fuse should blow, see your dealer for service immediately. If you ever have a problem on the road and don’t have a spare fuse, you can “borrow” one that has the same amperage. 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. 5-85 Fuses Usage 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Parking Brake Solenoid A Reverse Lamps BTSI Solenoid, Column Lock Not Used Not Used GMLAN Devices Rear Park Aid, Heated/Cooled Seats, Windshield Wiper Relays Door Locks Engine Control Module Interior Lights Air Bags, Passenger Air Bag Off Switch Not Used Onstar Adaptive Cruise Control (ACC), Driver Door Switch Power Tilt Wheel, Telescopic Steering Column, Memory Seat, Driver Seat Switch, Retractable Hardtop Switch Ignition Switch, Intrusion Sensor Stop Lamp Fuses Usage Spare fuse Spare fuse Spare fuse Spare fuse Fuse Pull Reverse Lamp Starter/Crank 5-86 Fuses Usage Fuses Usage 25 26 27 28 29 30 31 32 33 34 35 36 Inside Rearview Mirror, Climate Control System, Column Lock, Power Sounder Instrument Panel Cluster, Head-Up Display (HUD) Radio, S-Band, CD Changer Tap-Up/Tap-Down Switch, Adaptive Cruise Control (ACC) Switch, Cruise Control Switch Climate Control System, Power Sounder Rear Fog Lamps, Diagnostic Link Connector Power Folding Mirror Trunk Close Button, Parking Brake Solenoid B Power Seats Door Controls Run, Accessory Power Not Used 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Not Used Rainsense™ Steering Wheel Control Button Lights Power Lumbar Passenger’s Side Heated Seat Driver’s Side Heated Seat Not Used Retractable Hardtop, Trunk Latch Auxiliary Power Cigar Lighter Park Brake Hold Park Brake Release Not Used Not Used Not Used Fuel Door 5-87 Underhood Fuse Block To access the fuses, push in the tab located at the end of the fuse block cover. Then lift the cover open. The underhood fuse block is located next to the engine on the passenger’s side of the vehicle. For more information on location, see Engine CompartmentOverviewon page5-12. Fuses Usage Anti-Lock Brake System, Magnetic Ride Control Horn Adaptive Cruise Control, Transmission Controls Windshield Wipers 5-88 Fuses 10 11 12 13 14 15 16 17 18 19 20 21 22 Usage Stop/Back-Up Lamps Oxygen Sensor Battery 5 Parking Lamps Electronic Throttle Control Fuel Pump Engine Control Module, Transmission Control Module Odd Injectors Magnetic Ride Control Emission Controls Air Conditioning Compressor Even Injectors Windshield Washer Headlamp Washer Right Low Beam Headlamp Not Used Left Low Beam Headlamp Fog Lamp Fuses Usage 23 24 25 26 27 28 29 30 31 32 33 48 49 50 51 52 53 54 Right High Beam Headlamp Left High Beam Headlamp Not Used Battery 3 Anti-Lock Brakes Climate Controls Battery 2 Starter Audio Ampliﬁer Cooling Fan Battery 1 Spare Spare Spare Spare Spare Not Used Fuse Puller 5-89 Relays Usage Relays Usage 34 35 36 37 38 39 40 Horn Air Conditioning Compressor Windshield Washer Parking Lamps Fog Lamps High Beam Headlamps Rear Window Defogger 41 42 43 44 45 46 47 Windshield Wiper High/Low Wiper RUN/ACCESSORY Power Starter/Crank Ignition 1 Windshield Wiper On/Off Headlamp Washer Low Beam Headlamps 5-90 Capacities and Speciﬁcations The following approximate capacities are given in English and metric conversions. Please refer to Recommended FluidsandLubricantsonpage6-11 for more information. Application Air Conditioning Refrigerant R134a Cooling System Engine Oil with Filter Fuel Tank Transmission Wheel Nut Torque All capacities are approximate. When adding, be sure to ﬁll to the approximate level as recommended in this manual. Recheck ﬂuid level after ﬁlling. 18.5 gallons 9.5 quarts 100 lb-ft 14.8 quarts 140 Y 8 quarts Metric 0.64 kg 14.0 L 7.6 L 70.0 L 8.5 L Capacities English 1.4 lbs Engine VIN Code Transaxle Spark Plug Gap 4.6 L PV8 5L50 – E 0.040 inches (1.02 mm) Displacement 281 cubic inches (4 563 cc) Firing Order 1-2-7-3-4-5-6-8 Engine Speciﬁcations 5-91 - NOTES 5-92 Section 6 Maintenance Schedule Maintenance Schedule ......................................6-2 Introduction ...................................................6-2 Maintenance Requirements ..............................6-2 Your Vehicle and the Environment ....................6-2 Using Your Maintenance Schedule ....................6-2 Scheduled Maintenance ...................................6-4 Additional Required Services ............................6-6 Maintenance Footnotes ...................................6-7 Owner Checks and Services ............................6-8 At Each Fuel Fill ............................................6-8 At Least Once a Month ...................................6-8 At Least Once a Year .....................................6-9 Recommended Fluids and Lubricants ...............6-11 Normal Maintenance Replacement Parts ..........6-13 Maintenance Record .....................................6-14 6-1 Maintenance Schedule Introduction Important: Keep engine oil at the proper level and change as recommended. HaveyoupurchasedtheGMProtectionPlan?ThePlan supplementsyournewvehiclewarranties.Seeyour WarrantyandOwnerAssistancebookletoryourdealer fordetails. Maintenance Requirements Notice: Maintenance intervals, checks, inspections, replacement parts and recommended ﬂuids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition. Any damage caused by failure to follow scheduled maintenance may not be covered by warranty. 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 Your Maintenance Schedule We at General Motors want to help you keep your vehicle in good working condition. But we do not know exactly how you will drive it. You may drive very short distances only a few times a week. Or you may drive long distances all the time in very hot, dusty weather. You may use your vehicle in making deliveries. Or you may drive it to work, to do errands or in many other ways. Because of all the different ways people use their vehicles, maintenance needs vary. You may need more frequent checks and replacements. So please read the following and note how you drive. If you have any questions on how to keep your vehicle in good condition, see your GM Goodwrench dealer. This schedule is for vehicles that: • carry passengers and cargo within recommended limits. You will ﬁnd these limits on the tire and loading information label. See LoadingYourVehicle onpage4-32. • are driven on reasonable road surfaces within legal driving limits. • use the recommended fuel. See GasolineOctane onpage5-4. The services in ScheduledMaintenanceonpage6-4 should be performed when indicated. See Additional RequiredServicesonpage6-6 and Maintenance Footnotesonpage6-7 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. If you have any doubt, see your GM Goodwrench dealer to have a qualiﬁed technician do the work. Some maintenance services can be complex. So, unless you are technically qualiﬁed and have the necessary equipment, you should have your GM Goodwrench dealer do these jobs. When you go to your GM Goodwrench dealer for your service needs, you will know that GM-trained and supported service technicians will perform the work using genuine GM parts. If you want to get service information, see Service PublicationsOrderingInformationonpage7-11. OwnerChecksandServicesonpage6-8 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 RecommendedFluidsandLubricants onpage6-11and NormalMaintenanceReplacement Partsonpage6-13. When your vehicle is serviced, make sure these are used. All parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. We recommend the use of genuine GM parts. 6-3 Scheduled Maintenance When the CHANGE OIL NOW message in the Driver Information Center (DIC) comes on, it means that service is required for your vehicle. Have your vehicle serviced as soon as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best conditions, the engine oil life system may not indicate that vehicle service is necessary for over a year. However, your engine oil and ﬁlter must be changed at least once a year and at this time the system must be reset. Your GM Goodwrench dealer has GM-trained service technicians who will perform this work using genuine GM parts and reset the system. If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5 000 km) since your last service. Remember to reset the oil life system whenever the oil is changed. See EngineOilonpage5-13 for information on the Engine Oil Life System and resetting the system. When the CHANGE OIL NOW 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 NOW message comes on within ten months since vehicle was purchased or Maintenance II was performed. Maintenance II — Use Maintenance II if the previous service performed was Maintenance I. Always use Maintenance II whenever the message comes on ten months or more since the last service or if the message has not come on at all for one year. 6-4 Service Maintenance I Maintenance II Change engine oil and ﬁlter. Reset oil life system. See EngineOilon page5-13. AnEmissionControlService. Visually check for any leaks or damage. Seefootnote(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 wiper blades. Seefootnote(b). Inspect restraint system components. Seefootnote(c). Lubricate body components. Seefootnote(d). Replace passenger compartment air ﬁlter. Seefootnote(e). • • • • • • • • 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. 25,000 (41 500) 50,000 (83 000) • 75,000 (125 000) 100,000 (166 000) • • 125,000 (207 500) 150,000 (240 000) • • • • • • • • • • • • • • Service Inspect fuel system for damage or leaks. Inspect exhaust system for loose or damaged components. Replace engine air cleaner ﬁlter. See EngineAirCleaner/Filteronpage5-18. AnEmissionControlService. Change automatic transmission ﬂuid and ﬁlter (severe service). Seefootnote(f). Change automatic transmission ﬂuid and ﬁlter (normal service). Replace spark plugs. AnEmission ControlService.

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2004 Cadillac XLR Owners Manual