2007 Buick Rendezvous Owners Manual

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three-quarters full when it is very cold. This allows for expansion if freezing occurs, which could damage the tank if it is completely full. (cid:127) Do not use engine coolant (antifreeze) in your windshield washer. It can damage your washer system and paint. Brakes Brake Fluid Your brake master cylinder reservoir is ﬁlled with DOT-3 brake ﬂuid. See Engine Compartment Overview on page 364 for the location of the reservoir. There are only two reasons why the brake ﬂuid level in the reservoir might go down. The ﬁrst is that the brake ﬂuid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the ﬂuid level goes back up. The other reason is that ﬂuid is leaking out of the brake system. If it is, you should have your brake system ﬁxed, since a leak means that sooner or later your brakes will not work well, or will not work at all. 389 What to Add When you do need brake ﬂuid, use only DOT-3 brake ﬂuid. Use new brake ﬂuid from a sealed container only. See Recommended Fluids and Lubricants on page 485. Always clean the brake ﬂuid reservoir cap and the area around the cap before removing it. This will help keep dirt from entering the reservoir. {CAUTION: With the wrong kind of ﬂuid in the brake system, the brakes may not work well, or they may not even work at all. This could cause a crash. Always use the proper brake ﬂuid. So, it is not a good idea to top off your brake ﬂuid. Adding brake ﬂuid will not correct a leak. If you add ﬂuid when your linings are worn, then you will have too much ﬂuid when you get new brake linings. You should add or remove brake ﬂuid, as necessary, only when work is done on the brake hydraulic system. {CAUTION: If your vehicle has too much brake ﬂuid, it can spill on the engine. The ﬂuid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake ﬂuid only when work is done on the brake hydraulic system. When your brake ﬂuid falls to a low level, your brake warning light will come on. See Brake System Warning Light on page 219. 390 Notice: (cid:127) Using the wrong ﬂuid can badly damage brake system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the brake system can damage brake system parts so badly that they will have to be replaced. Do not let someone put in the wrong kind of ﬂuid. If you spill brake ﬂuid on your vehicle’s painted surfaces, the paint ﬁnish can be damaged. Be careful not to spill brake ﬂuid on your vehicle. If you do, wash it off immediately. See Washing Your Vehicle on page 455. (cid:127) Brake Wear Your vehicle has four-wheel disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound may come and go or be heard all the time your vehicle is moving, except when you are pushing on the brake pedal ﬁrmly. {CAUTION: The brake wear warning sound means that soon the brakes will not work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced. Notice: Continuing to drive with worn-out brake pads could result in costly brake repair. Some driving conditions or climates may cause a brake squeal when the brakes are ﬁrst applied or lightly applied. This does not mean something is wrong with your brakes. 391 Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to GM torque speciﬁcations. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble. Brake Adjustment Every time you apply the brakes, with or without the vehicle moving, your brakes adjust for wear. Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Your vehicle was designed and tested with top-quality GM brake parts. When you replace parts of your braking system — for example, when your brake linings wear down and you need new ones put in — be sure you get new approved GM replacement parts. If you do not, your brakes may no longer work properly. For example, if someone puts in brake linings that are wrong for your vehicle, the balance between your front and rear brakes can change — for the worse. The braking performance you have come to expect can change in many other ways if someone puts in the wrong replacement brake parts. 392 Battery Your vehicle has a maintenance free battery. When it is time for a new battery, get one that has the replacement number shown on the original battery’s label. We recommend an ACDelco® replacement battery. See Engine Compartment Overview on page 364 for battery location. Warning: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. Vehicle Storage If you are not going to drive your vehicle for 25 days or more, remove the black, negative (−) cable from the battery. This will help keep your battery from running down. {CAUTION: Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 394 for tips on working around a battery without getting hurt. Also, for your audio system, see Theft-Deterrent Feature on page 296. 393 Jump Starting If your vehicle’s battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following steps to do it safely. {CAUTION: Batteries can hurt you. They can be dangerous because: (cid:127) They contain acid that can burn you. (cid:127) They contain gas that can explode or (cid:127) They contain enough electricity to ignite. burn you. If you do not follow these steps exactly, some or all of these things can hurt you. Ignoring these steps could result in Notice: costly damage to your vehicle that would not be covered by your warranty. 394 Trying to start your vehicle by pushing or pulling it will not work, and it could damage your vehicle. 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. If the other vehicle’s system is not a Notice: 12-volt system with a negative ground, both vehicles can be damaged. Only use vehicles with 12-volt systems with negative grounds to jump start your vehicle. 2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles are not touching each other. If they are, it could cause a ground connection you do not want. You would not be able to start your vehicle, and the bad grounding could damage the electrical systems. To avoid the possibility of the vehicles rolling, set the parking brake ﬁrmly on both vehicles involved in the jump starting procedure. Put an automatic transaxle in PARK (P) or a manual transaxle in NEUTRAL before setting the parking brake. 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 the accessory power outlet(s). Turn off the radios and all lamps that are not needed. This will avoid sparks and help save both batteries. And it could save the radio! 4. Open the hood on the other vehicle and locate the positive (+) and negative (−) terminal locations on that vehicle. You will not need to access your battery for jump starting. Your vehicle has a remote positive (+) jump starting terminal for that purpose. The terminal is located under a tethered cap at the front of the underhood fuse block. See Engine Compartment Overview on page 364 for more information on location. Squeeze the tabs and swing the cap out of the way to access the remote positive (+) terminal. 3.5L V6 Engine You should always use the remote positive (+) terminal instead of the positive (+) terminal on the battery. {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. 395 {CAUTION: {CAUTION: Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a ﬂashlight if you need more light. Be sure the battery has enough water. You do not need to add water to the battery installed in your new vehicle. But if a battery has ﬁller caps, be sure the right amount of 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. 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 do not 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. 396 If you connect a negative cable to the Notice: engine control module (ECM), ECM mounting bracket or any cables that attach to the ECM bracket, you may damage the ECM. Attach the negative cable to a heavy, unpainted metal engine part, other than the ECM, ECM bracket or cables attached to the ECM bracket. Do not connect positive (+) to negative (−) or you will get a short that would damage the battery and maybe other parts too. And do not 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. 7. Do not 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. Do not let the other end touch anything until the next step. The other end of the negative (−) cable does not 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. 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 will not start after a few tries, it probably needs service. 397 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. 5. Return the remote positive (+) terminal cover to its original position. Notice: If the jumper cables are connected or removed in the wrong order, electrical shorting may occur and damage the vehicle. The repairs would not be covered by your warranty. Always connect and remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal. Jumper Cable Removal A. Heavy, Unpainted Metal Engine Part or Remote Negative (−) Terminal B. Good Battery or Remote Positive (+) and Remote Negative (−) Terminals C. Dead Battery or Remote Positive (+) Terminal 398 Bulb Replacement For the proper type of replacement bulbs, see Replacement Bulbs on page 404. For any bulb changing procedure not listed in this section, contact your dealer. Halogen Bulbs {CAUTION: Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package. Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps 1. Open the hood. See Hood Release on page 363 for more information. 2. Push in on the headlamp panel and lift up the headlamp retaining clip partway, but do not remove. 3. Remove the wing stud on the upper, outboard side of the lamp assembly. 4. Unsnap the headlamp assembly by pulling it forward, away from the vehicle. 399 5. Disconnect the electrical connector by pulling back on the locking tab, located on the electrical connector, to separate the two connectors. 6. Turn the bulb socket one-quarter of a turn clockwise. 7. Pull the bulb assembly out from the lamp housing. 400 8. Unhook the electrical connector by lifting up the gray tabs and separate the connector from the bulb base. 9. Install the appropriate new bulb into the electrical connector. Push the bulb ﬁrmly enough so that the gray tabs hook over the tab on the bulb. 10. Put the bulb assembly back into the lamp housing and turn the bulb socket one-quarter of a turn counterclockwise. 11. Align the retaining clips on the back of the headlamp with the rectangular holes in the mounting panel. 12. Push ﬁrmly on both ends of the headlamp to snap it into position. 13. Push the retaining clip down to its original position. 14. Reinstall the wing stud. Taillamps, Turn Signal, and Stoplamps 1. Open the liftgate. See Liftgate on page 118 for more information. 2. Remove the two screws on the inboard taillamp panel. 3. Pull the lamp directly rearward from the vehicle. 401 4. Turn the bulb socket one-quarter of a turn counterclockwise. 5. Pull the bulb assembly out from the lamp housing. 6. Unhook the electrical connector by lifting up the tabs and separate the connector from the bulb base. 7. Install the new bulb into the electrical connector. Push the bulb ﬁrmly enough so that the tabs hook over the tab on the bulb. 8. Reverse the steps to reinstall. 9. Reinstall the lamp to its pocket by lining up the mounting pin and pushing forward to set the position. 10. Reinstall the screws removed in Step 2. 11. Close the liftgate. Taillamps and Back-Up Lamps This procedure is for the liftgate-mounted taillamps and back-up lamps. To replace one of these bulbs, do the following: 1. Open the liftgate. See Liftgate on page 118 for more information. 2. Remove the panel inside the liftgate by lifting the tabs and pulling the panel off. 3. Remove the seven wing nuts and the four outboard nuts (two at each end). 4. Gently lower the liftgate. 5. Pull the lamp assembly directly rearward from the vehicle. 402 A. Outboard Taillamp B. Center Taillamp C. Inboard Back-Up Lamp 6. Turn the bulb socket counterclockwise one-quarter of a turn. 7. Pull the bulb assembly out from the lamp housing. 8. Pull the bulb out of the base. 9. Install the new bulb into the electrical connector. Push the bulb ﬁrmly enough so that the tabs hook over the tab on the bulb. 10. Put the bulb assembly back into the lamp housing and turn the bulb socket clockwise one-quarter of a turn. 11. Reinstall the lamp assembly on the liftgate. 12. Gently lift the liftgate. 13. Reinstall the seven wing nuts and the four outboard nuts. 14. Reinstall the panel inside the liftgate by connecting the tabs. 15. Close the liftgate. 403 Replacement Bulbs Exterior Lamp Bulb Number Front Turn Signal/Parking Lamp 3457K Headlamps High-beam Low-beam Liftgate-Mounted Back-up Lamp Taillamp Rear Outboard Stoplamp/Taillamp/Turn Signal Lamp Sidemarker Lamp 9005 9006 921 161 3057K 168 For replacement bulbs not listed here, contact your dealer. Windshield Replacement Keep in mind that your windshield is part of the Head-Up Display (HUD) system. If you ever have to get your windshield replaced, be sure to get one that is designed for HUD or your HUD image may look blurred or out of focus. Windshield Wiper Blade Replacement Windshield wiper blades should be inspected for wear and cracking. See Scheduled Maintenance on page 475 for more information. Replacement blades come in different types and are removed in different ways. For proper type and length, see Normal Maintenance Replacement Parts on page 486. 404 To replace the windshield wiper blade assembly do the following: 1. Lift the wiper arm away from the windshield. 2. Push the release lever (B) to disengage the hook and push the wiper arm (A) out of the blade (C). 3. Push the new wiper blade securely on the wiper arm until you hear the release lever click into place. To replace the rear wiper blade, follow the steps listed above. 405 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. {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 332. CAUTION: (Continued) 406 CAUTION: (Continued) (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. Tire pressure should be checked when your vehicle’s tires are cold. See Inﬂation - Tire Pressure on page 413. (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. 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. Passenger (P-Metric) Tire Example (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. (D) Tire Identiﬁcation Number (TIN): The letters and numbers following DOT (Department of Transportation) code is 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. 407 (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 420. (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. If your vehicle has a compact spare tire, see Compact Spare Tire on page 450 and If a Tire Goes Flat on page 427. 408 (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 letters and numbers following the DOT (Department of Transportation) code is 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 413. (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. Tire Size The following illustration shows an example of a typical passenger vehicle tire size. (A) Passenger (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. 409 (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 60, as shown in item C of the illustration, it would mean that the tire’s sidewall is 60 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. 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. 410 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 413. 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 332. GAWR FRT: Gross Axle Weight Rating for the front axle. See Loading Your Vehicle on page 332. GAWR RR: Gross Axle Weight Rating for the rear axle. See Loading Your Vehicle on page 332. 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 332. 411 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 413 and Loading Your Vehicle on page 332. 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. 412 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 418. 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 420. 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 332. 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 332. 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). 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 332. How you load your vehicle affects vehicle handling and ride comfort. Never load your vehicle with more weight than it was designed to carry. 413 When to Check Check your tires once a month or more. Do not forget to check the compact spare tire, it should be at 60 psi (420 kPa). For additional information regarding the compact spare tire, see Compact Spare Tire on page 450. 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 under-inﬂated. 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. 414 If you overﬁll the tire, release air by pushing on the metal stem in the center of the tire valve. Re-check 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. Check Tire Pressure System Your vehicle may have a check tire pressure system that can alert you to a large change in the pressure of one tire. The system won’t alert you before you drive that a tire is low or ﬂat. You must begin driving before the system will work properly. The LOW TIRE PRESSURE HOLD SET TO RESET message will appear on the Driver Information Center (DIC) and the LOW TIRE PRESSURE message will come on the message center if pressure difference, or low pressure, is detected in one tire. In the following conditions, the LOW TIRE PRESSURE message may not come on even if the tire pressure is low, or it may come on when the tire pressure is actually normal: (cid:127) More than one tire is low (cid:127) Only one tire is replaced with a new tire during service (cid:127) The vehicle is moving faster than 70 mph (113 km/h) (cid:127) The system is not yet calibrated (cid:127) The tire treadwear is uneven (cid:127) The compact spare tire is installed (cid:127) Tire chains are being used (cid:127) The vehicle is being driven on a rough or frozen road If the anti-lock brake system warning light comes on, the check tire pressure system may not be working properly. See your dealer for service. Also, see Anti-Lock Brake System Warning Light on page 220. The check tire pressure system detects differences in tire rotation speeds that are caused by changes in tire pressure. The system can alert you about a low tire – but it does not replace normal tire maintenance. See Tires on page 406. When the LOW TIRE PRESSURE HOLD SET TO RESET message appears on the Driver Information Center and the LOW TIRE PRESSURE message comes on the message center, you should stop as soon as you can and check all your tires for damage. If a tire is ﬂat, see If a Tire Goes Flat on page 427. Also check the tire pressure in all four tires as soon as you can. See Inﬂation - Tire Pressure on page 413. Any time you adjust a tire’s pressure or have one or more tires repaired or replaced, you’ll need to reset, or calibrate, the check tire pressure system. You’ll also need to reset the system whenever you rotate the tires, buy new tires and install or remove the compact spare. Do not reset the check tire pressure system without ﬁrst correcting the cause of the problem and checking and adjusting the pressure in all four tires. If you reset the system when the tire pressures are incorrect, the check tire pressure system will not work properly and may not alert you when a tire is low or high. 415 To reset the system, do the following: 1. With the engine off, turn the ignition to ON. 2. Press the MODE button until the DIC reads LOW TIRE PRESSURE HOLD SET TO RESET. 3. Press and hold the SET button until you hear a chime, and TIRE PRESSURE RESET is displayed. You will hear three chimes, then the LOW TIRE PRESSURE message will go off and the DIC will return to TIRE PRESSURE NORMAL. If the LOW TIRE PRESSURE message comes back on, the check tire pressure system has not reset. Repeat the procedure. The system completes the calibration process during driving. The system learns the pressure at each tire throughout the operating speed range of your vehicle. The system normally takes between 30 and 60 minutes of driving to learn the tire pressures. The system normally takes 10 to 20 minutes of driving in each speed range to learn tire pressures. The speed ranges are 20 to 40 mph (32 to 64 km/h), 40 to 60 mph (64 to 96 km/h), and above 60 mph (96 km/h). This time may be longer depending on your 416 individual driving habits. The learning process does not need to be completed during a single trip. Once learned, the system will remember the tire pressure until the system is reset. 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 418 and Wheel Replacement on page 422 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 folding wrench to tighten the cable. See Storing a Flat or Spare Tire and Tools on page 444. 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 475. When rotating your tires, always use the correct rotation pattern shown here. Do not include the compact spare tire in your tire rotation. After the tires have been rotated, adjust the front and rear inﬂation pressures as shown on the Tire and Loading Information label. Reset the check tire pressure system, if equipped. See Check Tire Pressure System on page 414. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Speciﬁcations on page 469. {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 428. 417 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. 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. 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. 418 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 407 for additional information. {CAUTION: Mixing tires could cause you to lose control while driving. If you mix tires of different sizes, brands, or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes, brands, or types may also cause damage to your vehicle. Be sure to use the correct size, brand, and type of tires on all wheels. It is all right to drive with your compact spare temporarily, as it was developed for use on your vehicle. See Compact Spare Tire on page 450. {CAUTION: If you use bias-ply tires on your vehicle, the wheel rim ﬂanges could develop cracks after many miles of driving. A tire and/or wheel could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on your vehicle. If you must replace your vehicle’s tires with those that do not have a TPC Spec number, make sure they are the same size, load range, speed rating, and construction type (radial and bias-belted tires) as your vehicle’s original tires. 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 332, for more information about the Tire and Loading Information Label and its location on your vehicle. 419 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. 420 See Buying New Tires on page 418 and Accessories and Modiﬁcations on page 354 for additional information. 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. 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. 421 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. 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. 422 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 or tire chain clearance to the body and chassis. See Changing a Flat Tire on page 428 for more information. Used Replacement Wheels {CAUTION: 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. 423 Tire Chains {CAUTION: Do not use tire chains. 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. CAUTION: (Continued) CAUTION: (Continued) 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 is contacting your vehicle, and do not spin the wheels. If you do ﬁnd traction devices that will ﬁt, install them on the front tires for front-wheel-drive vehicles. If your vehicle has all-wheel drive, install traction devices on either the front tires or all four tires, but never on the rear tires only. 424 Accessory Inﬂator Your vehicle may have an accessory inﬂator. With it, you can inﬂate things like air mattresses and basketballs, and you can also use it to bring your tires up to the proper pressure. The accessory inﬂator is located in the rear compartment on the driver’s side. To remove the cover, pull the tab on the cover and pull it off. This is the symbol on the accessory inﬂator switch. There may be an accessory inﬂator kit stored in the glove box. It includes a 20-foot (6 m) hose with an air pressure gage and nozzle adapters. {CAUTION: Inﬂating something too much can make it explode, and you or others could be injured. Be sure to read the inﬂator instructions, and inﬂate any object only to its recommended pressure. To use your accessory inﬂator system, do the following: 1. Turn the ignition to ACCESSORY or ON. 2. Attach the appropriate nozzle adapter, if required, to the end of the hose that has the pressure gage. 3. Attach that end of the hose to the object you wish to inﬂate. 425 After running the accessory inﬂator for 30 minutes, wait at least 10 minutes before restarting the accessory inﬂator. To turn off the inﬂator, do the following: 1. Press the switch and detach the hose, ﬁrst from the inﬂated object, then from the outlet. 2. Put the protective cap back on. 3. Place the inﬂator kit tools in the pouch, and store in the glove box. To put the cover back on, line up the tabs at the back of the cover and put it in place. Push down the tab to secure the cover. 4. Remove the protective cap covering the outlet. 5. Attach the other end of the hose to the outlet. 6. Press the accessory inﬂator switch. The light in the switch will come on to show the system is working. If the accessory inﬂator system does not turn on or the light does not come on, the fuse may be blown or installed incorrectly. See Fuses and Circuit Breakers on page 463 or see your dealer for service. Your accessory inﬂator will automatically shut off after about 10 minutes. The light in the switch will blink. After about one minute you can use the system again. Press the inﬂator switch and the indicator light will come on. Notice: longer than 30 minutes at a time, you could damage the inﬂator. The repairs would not be covered by your warranty. Run the inﬂator for short periods of time only. If you run the accessory inﬂator 426 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. 427 CAUTION: (Continued) 3. Turn off the engine and do not restart while the vehicle is raised. 4. Do not allow passengers to remain in the vehicle. To be even more certain the vehicle will not move, you should 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 vehicle’s hazard warning ﬂashers. See Hazard Warning Flashers on page 176 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 the shift lever in PARK (P). CAUTION: (Continued) 428 When your vehicle has a ﬂat tire, use the following example as a guide to assist you in the placement of wheel blocks. Removing the Spare Tire and Tools The following information will tell you next how to use the jack and change a tire. The equipment you will need is located in the storage compartment on the passenger’s side, at the rear of the vehicle. 1. Open the jack storage compartment by lifting up the tab and pulling the cover off. 429 3. Separate the jack and remove the folding wrench from the jack. A. Jack B. Wing Bolt C. Jacking Instructions D. Folding Wrench E. Wing Nut F. J-Hook 2. Remove the jack and jacking tools by turning the wing bolt counterclockwise. Lift up slightly on the jack to remove it from the bracket. Then take it out of the storage compartment. 430 The tools you will be using include the jack (A), folding wrench (B), wing nut (C), and J-hook (D). Removing the Spare Tire (Vehicles without a Rear Convenience Center) The compact spare tire is located under the vehicle, behind the rear bumper. Use the spare tire hoist to raise, lower and store the compact spare tire. See Compact Spare Tire on page 450 for more information about the compact spare. A. Hoist Shaft B. Folding Wrench C. Hoist Assembly D. Retainer E. Compact Spare Tire 1. Flip the rear cargo area carpet cut out to expose the hoist shaft. 2. Attach the folding wrench into the hoist shaft. 3. Turn the folding wrench counterclockwise to lower the spare tire to the ground. Continue turning the wrench until the spare tire can be pulled out from under the vehicle. 4. Tilt the retainer and slip it through the wheel opening to remove the spare tire from the cable. 5. Turn the wrench clockwise to raise the cable back up after removing the spare tire. Do not store a full-size or a ﬂat road tire under the vehicle. See Storing a Flat or Spare Tire and Tools on page 444. To continue changing the ﬂat tire, see Removing the Flat Tire and Installing the Spare Tire on page 436. 431 3. Loosen the cable by turning the wrench counterclockwise three or four turns. 4. If the spare tire has not lowered, tighten the cable all the way and then loosen it at least two times. If the spare tire did lower to the ground, continue with Step 4 under “Removing the Spare Tire (Vehicles without the Rear Convenience Center)” listed previously. 5. If you still cannot lower the spare tire to the ground, see Secondary Latch System on page 441. Removing the Spare Tire (Vehicles with a Rear Convenience Center) The compact spare tire is located under the vehicle, ahead of the rear bumper. See Compact Spare Tire on page 450 for more information about the compact spare. If the spare tire will not lower, the secondary latch may be engaged causing the tire not to lower. Do the following to check the cable: 1. Check under the vehicle to see if the cable is visible. 2. If it is not visible, see Secondary Latch System on page 441. If it is visible, ﬁrst try to tighten the cable by turning the folding wrench clockwise until you hear two clicks or feel it skip twice. You cannot over-tighten the cable. 432 A. Rear Convenience Center B. Folding Wrench C. Storage Compartment Cap Hole D. Hoist Shaft E. Compact Spare Tire F. Retainer G. Hoist Shaft Assembly 1. Open the storage compartment door of the convenience center that is nearest the liftgate and remove the cap on the bottom of the storage compartment. 2. Flip the cut out carpet that is located through the hole of the storage compartment. 3. Attach the folding wrench into the hoist shaft. 4. Turn the folding wrench counterclockwise to lower the spare tire to the ground. Continue turning the wrench until the spare tire can be pulled out from under the vehicle. 433 If the spare tire will not lower, the secondary latch may be engaged causing the tire not to lower. 5. Tilt the retainer and slip it through the wheel opening to remove the spare tire from the cable. 6. Turn the wrench clockwise to raise the cable back up after removing the spare tire. Do not store a full-size or a ﬂat road tire under the vehicle. See Storing a Flat or Spare Tire and Tools on page 444. To continue changing the ﬂat tire, see Removing the Flat Tire and Installing the Spare Tire on page 436. 434 Do the following to check the cable: 1. Check under the vehicle to see if the cable is visible. 2. If it is not visible, see Secondary Latch System on page 441. If it is visible, ﬁrst try to tighten the cable by turning the folding wrench clockwise until you hear two clicks or feel it skip twice. You cannot over-tighten the cable. 3. Loosen the cable by turning the wrench counterclockwise three or four turns. 4. If the spare tire has not lowered, tighten the cable all the way and then loosen it at least two times. If the spare tire did lower to the ground, continue with Step 5 under “Removing the Spare Tire (Vehicles with the Rear Convenience Center)” listed previously. 5. If you still cannot lower the spare tire to the ground, see Secondary Latch System on page 441. 435 Removing the Flat Tire and Installing the Spare Tire 1. If there is a wheel cover, loosen the plastic nut caps with the wheel wrench. They will not come off. Then, using the ﬂat end of the wheel wrench, pry along the edge of the cover until it comes off. Be careful; the edges may be sharp. Do not try to remove the cover with your bare hands. If your vehicle has aluminum wheels, remove the wheel nut caps using the wheel wrench. 436 2. Loosen the wheel nuts, but do not remove them, using the folding wrench. Turn the handle about 180 degrees, then ﬂip the handle back to the starting position. This avoids taking the wrench off the lug nut for each turn. For wheels with a wheel lock key, use the wheel lock key between the lock nut and folding wrench. The key is supplied in the front passenger door pocket. Notice: If your vehicle has wheel locks and you use an impact wrench to remove the wheel nuts, you could damage the lock nut or wheel lock key. Do not use an impact wrench to remove the wheel nuts if your vehicle has wheel locks. 3. Locate the notch (A is 3.0 inches (7.5 cm) from the front tire or B is 5.5 inches (14.0 cm) from the rear tire). The notch is located near each wheel in the vehicle’s body. {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. If you use a jack to raise the vehicle Notice: without positioning it correctly, you could damage your vehicle. When raising your vehicle on a jack, avoid contact with the rear axle control arms. Do not raise the vehicle yet. Put the compact spare tire near you. 437 5. Raise the vehicle by turning the folding wrench clockwise in the jack. Raise the vehicle far enough off the ground so that there is enough room for the spare tire to ﬁt under the wheel well. 6. Remove all the wheel nuts and take off the ﬂat tire. {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. 4. Attach the folding wrench to the jack, and turn the wrench clockwise to raise the jack head 3 inches (7.6 cm). 438 {CAUTION: {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. 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. 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. 7. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. 439 {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 469 for wheel nut torque speciﬁcation. 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 469 for the wheel nut torque speciﬁcation. 8. Lower the vehicle by attaching the folding wrench to the jack and turning the wrench counterclockwise. Lower the jack completely. 440 9. Tighten the wheel nuts ﬁrmly in a crisscross sequence, as shown. Notice: Wheel covers will not ﬁt on your compact spare. If you try to put a wheel cover on the compact spare, you could damage the cover or the spare. 10. Do not try to put a wheel cover on the compact spare tire. It will not ﬁt. Store the wheel cover securely in the rear of the vehicle until you have the ﬂat tire repaired or replaced. Secondary Latch System Your vehicle has an underbody mounted tire hoist assembly equipped with a secondary latch system. It is designed to stop the compact spare tire from suddenly falling off your vehicle if the cable holding the spare tire is damaged. For the secondary latch to work, the tire must be stowed with the valve stem pointing down. See Storing a Flat or Spare Tire and Tools on page 444 for instructions on storing the spare tire correctly. {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. 441 To release the spare tire from the secondary latch, do the following: {CAUTION: Someone standing too close during the procedure could be injured by the jack. If the spare tire does not slide off the jack completely, make sure no one is behind you or on either side of you as you pull the jack out from the spare. 1. If the cable is not visible, start this procedure at Step 3. 2. Turn the folding wrench counterclockwise until approximately 6 inches (15 cm) of cable is exposed. 442 3. Attach the folding wrench to the jack and raise the jack at least 10 turns. 4. Place the jack under the vehicle, ahead of the rear bumper. Position the center lift point of the jack under the center of the spare tire. 5. Turn the folding wrench clockwise to raise the jack until it lifts the secondary latch spring. 6. Keep raising the jack until the spare tire stops moving upward and is held ﬁrmly in place. This lets you know that the secondary latch has released and the spare tire is balancing on the jack. 8. Disconnect the folding wrench from the jack and carefully remove the jack. Use one hand to push against the spare tire while ﬁrmly pulling the jack out from under the spare tire with the other hand. 7. Lower the jack by turning the folding wrench counterclockwise. Keep lowering the jack until the spare tire slides off the jack. 443 9. Tilt the retainer and slip it through the wheel opening when the spare tire has been completely lowered. 10. Turn the folding wrench clockwise to raise the cable back up if the cable is hanging. Have the hoist assembly inspected as soon as you can. You will not be able to store a spare tire using the hoist assembly until it has been repaired or replaced. Storing a Flat or Spare Tire and Tools Storing the Flat Tire (Vehicles without Stowable Seat and without Rear Convenience Center) D. Valve Stem E. Full-Size Tire A. D-Ring B. Wing Nut C. J-Hook 1. Flip up the D-ring located in the rear cargo area. 2. Lay the tire in the rear cargo area of the vehicle with the valve stem up with the center hole of the tire over the D-ring. 444 For vehicles with aluminum wheels, remove the center cap by tapping the back of the cap with the folding wrench. 3. Remove the J-hook and the wing nut from the back of the jack access door. Assemble the wing nut and the J-hook. 4. Install the wing nut and the J-hook to the D-ring through the center hole of the tire. 5. Tighten the wing nut to secure the tire to the ﬂoor. Push and pull on the tire to make sure the tire is secure and does not move. 6. Put back all tools as they were stored in the jack storage compartment and put the compartment cover back on. Slip the tabs on the side of the compartment cover into the cover opening. Push the cover in place and push down the tabs on the cover so that it rests in the groove. This secures the cover in place. Storing the Flat Tire (Vehicles with a Rear Convenience Center) A. D-Ring B. Rear Convenience E. Full-Size Tire F. Cap on Bottom of Center Storage Compartment C. Wing Nut D. J-Hook 1. Open the center storage compartment door of the rear convenience center. 2. Remove the cap on the bottom of the storage compartment and ﬂip the D-ring up. 445 3. Lay the tire on top of the center storage compartment with the valve stem down. Make sure you can see the D-ring through the center hole of the tire. 4. Remove the J-hook and the wing nut from the back of the jack access door. Assemble the wing nut and the J-hook. 5. Install the wing nut and the J-hook to the D-ring through the center hole of the tire. 6. Tighten the wing nut to secure the tire to the ﬂoor. Push and pull on the tire to make sure the tire is secure and does not move. 7. Put back all tools as they were stored in the jack storage compartment and put the compartment cover back on. Slip the tabs on the side of the compartment cover into the cover opening. Push the cover in place and push down the tabs on the cover so that it rests in the groove. This secures the cover in place. 446 Storing the Flat Tire (Vehicles with a Stowable Seat) A. Rear Convenience D. Stowable Seat Center B. Full-Size Tire C. D-Ring Strap E. Cargo Net Hook F. J-Hook G. Wing Nut 1. If the seatback is not in an upright position, move it to an upright position. 2. There is a strap attached to each side of the stowable seat. Hook the straps to the cargo net hook in the rear of the vehicle. 3. Flip the D-ring so it is pointing outward. 4. Open the convenience center cover. 5. Stand the full-size tire up, in the tray against the back of the seat with the valve stem pointing out. 6. Remove the J-hook and the wing nut from the back of the jack access door. Assemble the wing nut and the J-hook. 7. Install the wing nut and the J-hook to the D-ring through the center hole of the tire. 8. Tighten the wing nut to secure the tire to the seatback. Push and pull on the tire to make sure the tire is secure and does not move. 9. Put back all tools as they were stored in the jack storage compartment and put the compartment cover back on. Slip the tabs on the side of the compartment cover into the cover opening. Push the cover in place and push down the tabs on the cover so that it rests in the groove. This secures the cover in place. Storing the Flat Tire (Vehicles with a Stowable Seatback Folded Flat) D. J-Hook E. D-Ring A. Stowable Seat B. Full-Size Tire C. Wing Nut 1. Fold the seatback down and ﬂip the D-ring up. 2. Lay the tire on the seatback with the valve stem pointing up with the center hole of the tire over the D-ring. 447 3. Remove the J-hook and the wing nut from the back of the jack access door. Assemble the wing nut and the J-hook. 4. Install the wing nut and the J-hook to the D-ring through the center hole of the tire. 5. Tighten the wing nut to secure the tire to the seatback. 6. Push and pull on the tire to make sure the tire is secure and does not move. 7. Put back all tools as they were stored in the jack storage compartment and put the compartment cover back on. Slip the tabs on the side of the compartment cover into the cover opening. Push the cover in place and push down the tabs on the cover so that it rests in the groove. This secures the cover in place. Storing the 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. 448 {CAUTION: The underbody-mounted spare tire needs to be stored with the valve stem pointing down. If the spare tire is stored with the valve stem pointing upwards, its secondary latch will not work properly and the spare tire could loosen and suddenly fall from your vehicle. If this happened when your vehicle was being driven, the tire might contact a person or another vehicle, causing injury and, of course, damage to itself as well. Be sure the underbody-mounted spare tire is stored with its valve stem pointing down. 1. Lay the compact spare tire on the ground at the rear of the vehicle. Position the compact spare tire so that the valve stem is pointed down facing the rear of the vehicle. 2. Lower the cable to the ground. See Removing the Spare Tire and Tools on page 429. 3. Tilt the retainer downward and slip it through the center hole of the spare tire. Make sure the retainer is fully seated across the underside of the wheel. 4. Attach the folding wrench to the hoist shaft. 5. Turn the folding wrench clockwise to lift the spare tire. 6. When the tire reaches the stabilizer bar, move the tire over the bar, then continue to turn the folding wrench clockwise to lift the spare tire. 7. When the tire is almost in the stored position, turn the tire so that the valve stem is towards the rear of the vehicle. This will help when you check and maintain tire pressure in the spare. 8. Raise the tire fully against the underside of the vehicle. Continue turning the folding wrench until you feel more than two clicks. This indicates that the compact spare tire is secure and the cable is tight. The spare tire hoist cannot be overtightened. 449 When you replace the compact spare with a full-size tire, reinstall the bolt-on wheel covers or the center cap, whichever your vehicle has. Tighten

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2007 Buick Rendezvous Owners Manual