2007 GMC Envoy Owners Manual

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Temperature – A, B, C The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a speciﬁed indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inﬂated and not overloaded. Excessive speed, underinﬂation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure. 459 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 or tire chain clearance to the body and chassis. See Changing a Flat Tire on page 465 for more information. 460 Used Replacement Wheels Tire Chains {CAUTION: {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. 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. 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, re-adjust or remove the device if it is contacting your vehicle, and do not spin your wheels. If you do ﬁnd traction devices that will ﬁt, install them on the rear tires. 461 Accessory Inﬂator Your vehicle may have an accessory inﬂator system. You can inﬂate things like basketballs and bicycle tires. You can also use it to bring your tire pressure up to the proper pressure. It is not designed to inﬂate large objects which will require more than ﬁve minutes to inﬂate, such as an air mattress. To remove the cover, push in on the tab to access the inﬂator. You may have an air inﬂator kit that is located in the glove compartment. It includes a 22 ft (6.7 m) hose with three nozzle adapters. To use the accessory inﬂator, do the following: 1. Attach the appropriate nozzle adapter to the end of the hose, if required. The accessory inﬂator is located in the rear compartment on the driver’s side of the vehicle behind an access cover, near the liftgate opening. {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. 2. Attach that end of the hose to the object you wish to inﬂate. 3. Attach the other end of the hose to the outlet. 462 4. Press and release the switch to turn the air inﬂator on. The indicator light will remain on when the inﬂator is running. The system has an internal clock to prevent the system from overheating. The system will allow about ﬁve minutes of running time, then the compressor will stop. The indicator light will then begin to ﬂash. When the indicator is off, the inﬂator can be started again by pressing the switch. If the compressor is still hot, it may only run for a short time before shutting off again. 5. Press and release the switch to turn the inﬂator off. Place the inﬂator kit tools in the pouch and store it in its proper location. Remove the inﬂator hose from the outlet during loading and unloading. Load leveling will not function with the inﬂator hose attached to the inﬂator outlet. See Electronically Controlled Air Suspension System on page 360 for more information. To reinstall the cover, line up the tabs at the back of the cover, put it in place and latch the tabs. A continuous ﬂashing indicator light may also indicate a malfunction in the air suspension system. See Electronically Controlled Air Suspension System on page 360 for more information. 463 {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. 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. 464 Changing a Flat Tire If a tire goes ﬂat, avoid further tire and wheel damage by driving slowly to a level place. Turn on your hazard warning ﬂashers. See Hazard Warning Flashers on page 170 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) CAUTION: (Continued) 3. If you have a four-wheel-drive vehicle, be sure the transfer case is in a drive gear — not in NEUTRAL. 4. Turn off the engine and do not restart while the vehicle is raised. 5. Do not allow passengers to remain in the vehicle. 6. Put the wheel blocks at the front and rear of the tire farthest away from the one being changed. That would be the tire on the other side, at the opposite end of the vehicle. 465 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 how to use the jack and change a tire. The jacking equipment needed to remove the spare tire is stored under the rear seat. To release the jack from its holder, turn the knob on the jack counterclockwise to lower the jack head. See Rear Seat Operation on page 18 for more information. 466 A. Wheel Wrench B. Hoist Shaft C. Extension D. Retainer E. Spare or Flat Tire (Valve Stem Pointed Up) The tools you will be using include the wheel wrench (A), wheel blocks (B), extension(s) (socket end) (C), handle (jack end) (D), and jack (E). The following instructions explain how to remove the underbody-mounted spare underneath your vehicle. Notice: the storage position under the vehicle when it is supported by a jack, you could damage the tire and/or your vehicle. Always remove or restow a tire when the vehicle is on the ground. If you remove or restow a tire from/to 1. Open the liftgate. See Liftgate/Liftglass on page 106 for more information. 2. Attach the wheel wrench (A) to the extension (C). 467 3. Insert the socket end of the extension (C) on a 45 degree angle downward into the hoist drive shaft hole. It is exposed when the rear gate is open and is just above the rear bumper. Be sure the socket end of the extension (C) connects to the hoist shaft. 468 4. Turn the wheel wrench counterclockwise to lower the spare tire. Keep turning the wheel wrench until the spare tire can be pulled out from under the vehicle. If the spare tire does not lower to the ground, the secondary latch is engaged causing the tire not to lower. See Secondary Latch System on page 475 for more information. Removing the Flat Tire and Installing the Spare Tire 5. Tilt the retainer at the end of the cable when the tire has been completely lowered, and pull it through the wheel opening. If you drive away before the spare tire 6. Pull the tire out from under the vehicle. Notice: or secondary latch system cable has been reinstalled, you could damage your vehicle. Always reinstall this cable before driving your vehicle. 7. Put the spare tire near the ﬂat tire. 1. If your vehicle has a wheel cap that covers the wheel nuts, position the chisel end of the wheel wrench in the notch and pry it off. 469 2. Using the wheel wrench, loosen all the wheel nuts. Do not remove them yet. 3. Turn the jack adjusting knob clockwise by hand to raise the jack lift head. 4. Place the handle, extension, and wheel wrench onto the jack. Front Position Rear Position A. Front Frame/Rear Axle B. Jack C. Handle D. Extension E. Wheel Wrench 5. Place the jack in the appropriate position nearest the ﬂat tire. 470 {CAUTION: Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack. {CAUTION: Raising your vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to ﬁt the jack lift head into the proper location before raising the vehicle. 6. Raise the vehicle by turning the jack handle clockwise. Raise the vehicle far enough off the ground so there is enough room for the spare tire to ﬁt. 471 7. Remove all the wheel nuts and take off the ﬂat tire. CAUTION: (Continued) In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. 8. Remove any rust or dirt from the wheel bolts, mounting surfaces, and spare wheel. 9. Place the spare tire on the wheel-mounting surface. {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 anaccident. When you change a wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. CAUTION: (Continued) 472 {CAUTION: Never use oil or grease on studs or nuts. If you do, the nuts might come loose. Your wheel could fall off, causing a serious accident. 10. Put the nuts on by hand. Make sure the rounded end is toward the wheel. 11. Tighten each nut by hand until the wheel is held against the hub. If a nut cannot be turned by hand, use the wheel wrench and see your dealer as soon as possible. 12. Lower the vehicle by turning the jack handle counterclockwise. Lower the jack completely. 473 {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 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 502 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 502 for the wheel nut torque speciﬁcation. 13. Use the wrench to tighten the wheel nuts ﬁrmly in a crisscross sequence as shown. 474 Secondary Latch System Your vehicle has an underbody-mounted tire hoist assembly equipped with a secondary latch system. It is designed to stop the 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 stored with the valve stem pointing up. See Storing a Flat or Spare Tire and Tools on page 478 for instructions on storing the spare or ﬂat 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. {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. To release the spare tire from the secondary latch, do the following: 1. Check under the vehicle to see if the cable is visible. If it is not visible, proceed to Step 6. 475 2. If visible, ﬁrst try to tighten the cable by turning the wheel wrench clockwise until you hear two clicks or feel it skip twice. You cannot overtighten the cable. 3. Loosen the cable by turning the wheel wrench counterclockwise three or four turns. 4. Repeat this procedure at least two times. If the spare tire lowers to the ground, continue with Step 2 of Removing the Spare Tire and Tools on page 466. 5. Turn the wrench counterclockwise until approximately 6 inches (15 cm) of cable is exposed. 476 6. Attach the jack handle, extension(s) and the wheel wrench to the jack and place it under the vehicle towards the front of the rear bumper. Position the center lift point of the jack under the center of the spare tire. 7. Turn the wrench clockwise to raise the jack until it lifts the end ﬁtting. 8. Continue raising the jack until the spare tire stops moving upward and is held ﬁrmly in place. The secondary latch has released and the spare tire is balancing on the jack. 9. Lower the jack by turning the wheel wrench counterclockwise. Keep lowering the jack until the spare tire slides off the jack or is hanging by the cable. 10. Disconnect the jack handle from the jack and carefully remove the jack. Use one hand to push against the spare while ﬁrmly pulling the jack out from under the spare tire with the other hand. 11. If the spare tire is hanging from the cable, insert the socket end of the extension into the hoist shaft hole on a 45 degree angle downward. 12. Be sure that the socket end of the extension connects to the hoist shaft. Turn the wheel wrench counterclockwise to lower the spare the rest of the way. 477 13. Tilt the retainer at the end of the cable and pull it through the wheel opening. Pull the tire out from under the vehicle. Storing a Flat or Spare Tire and Tools {CAUTION: Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all these in the proper place. If you drive away before the spare tire Notice: or secondary latch system cable has been reinstalled, you could damage your vehicle. Always reinstall this cable before driving your vehicle. 14. Turn the wheel wrench clockwise to raise the cable back up if the cable is hanging under the vehicle. 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. 478 {CAUTION: The underbody-mounted spare tire needs to be stored with the valve stem pointing up. If the spare tire is stored with the valve stem pointing downward, 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 up. Notice: An aluminum wheel with a ﬂat tire should always be stored under the vehicle with the hoist. However, storing it that way for an extended period could damage the wheel. To avoid this, always stow the wheel properly with the valve stem pointing up and have the wheel repaired as soon as possible. Follow this diagram to store the underbody-mounted ﬂat or spare tire. A. Wheel Wrench B. Hoist Shaft C. Extension D. Retainer E. Spare or Flat Tire (Valve Stem Pointed Up) 1. Put the tire (E) on the ground at the rear of the vehicle. 2. Remove the hubcap, if the vehicle has one, from the ﬂat tire by tapping the backside of the hubcap with the wheel wrench (A). Store in a safe location until the ﬂat tire is repaired. Once the tire is repaired, replace the hubcap. 479 3. Make sure the valve stem is pointed up and to the rear. 4. Pull the retainer (D) through the wheel. 5. Put the socket end of the extension (C) through the hole just above the rear bumper at a 45 degree angle downward. Connect the socket end of the extension to the hoist shaft (B). 6. Raise the tire fully against the underside of the vehicle. Continue turning the wheel wrench (A) clockwise until you hear two clicks or feel it skip twice. This indicates that the tire is secure and the cable is tight. The spare tire hoist cannot be overtightened. 480 7. Make sure the tire is stored securely. Push, pull (A), and then try to turn (B) the tire. If the tire moves, use the wheel wrench and socket end of the extension to tighten the cable. 8. Return the equipment to the proper location in the vehicle as shown next. Spare Tire Your vehicle, when new, had a fully-inﬂated spare tire. A spare tire may lose air over time, so check its inﬂation pressure regularly. See Inﬂation - Tire Pressure on page 447 and Loading Your Vehicle on page 349 for information regarding proper tire inﬂation and loading your vehicle. For instruction on how to remove, install or store a spare tire, see Removing the Flat Tire and Installing the Spare Tire on page 469 and Storing a Flat or Spare Tire and Tools on page 478. After installing the spare tire on your vehicle, you should stop as soon as possible and make sure the spare is correctly inﬂated. Have the damaged or ﬂat road tire repaired or replaced as soon as you can and installed back onto your vehicle. This way, a spare tire will be available in case you need it again. Do not mix tires and wheels of different sizes, because they will not ﬁt. Keep your spare tire and its wheel together. 481 A. Handle B. Wheel Wrench C. Instruction Label D. Extension(s) E. Knob F. Wheel Blocks and Jack 1. Attach the handle (A), wheel wrench (B), and extension (D) in the slots provided. 2. Roll up the instruction label (C) and return to the slot in the tool kit. 3. Assemble the wheel blocks (F) to the jack. 4. Turn the knob (E) on the jack clockwise to raise the jack head. 5. Return the rear seat to its proper position. Appearance Care Cleaning the Inside of Your Vehicle Your vehicle’s interior will continue to look its best if it is cleaned often. Although not always visible, dust and dirt can accumulate on your upholstery. Dirt can damage carpet, fabric, leather, and plastic surfaces. Regular vacuuming is recommended to remove particles from your upholstery. It is important to keep your upholstery from becoming and remaining heavily soiled. Soils should be removed as quickly as possible. Your vehicle’s interior may experience extremes of heat that could cause stains to set rapidly. Lighter colored interiors may require more frequent cleaning. Use care because newspapers and garments that transfer color to your home furnishings may also transfer color to your vehicle’s interior. When leaning your vehicle’s interior, only use cleaners speciﬁcally designed for the surfaces being cleaned. Permanent damage may result from using cleaners on surfaces for which they were not intended. Use glass cleaner only on glass. 482 If you use abrasive cleaners when Remove any accidental over-spray from other surfaces immediately. To prevent over-spray, apply cleaner directly to the cleaning cloth. Notice: cleaning glass surfaces on your vehicle, you could scratch the glass and/or cause damage to the rear window defogger. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner. Many cleaners contain solvents that may become concentrated in your vehicle’s breathing space. Before using cleaners, read and adhere to all safety instructions on the label. While cleaning your vehicle’s interior, maintain adequate ventilation by opening your vehicle’s doors and windows. Dust may be removed from small buttons and knobs using a small brush with soft bristles. Your GM dealer has a product for cleaning your vehicle’s glass. Should it become necessary, you can also obtain a product from your GM dealer to remove odors from your vehicle’s upholstery. Do not clean your vehicle using the following cleaners or techniques: (cid:127) Never use a knife or any other sharp object to remove a soil from any interior surface. (cid:127) Never use a stiff brush. It can cause damage to your vehicle’s interior surfaces. (cid:127) Never apply heavy pressure or rub aggressively with a cleaning cloth. Use of heavy pressure can damage your interior and does not improve the effectiveness of soil removal. (cid:127) Use only mild, neutral-pH soaps. Avoid laundry detergents or dishwashing soaps with degreasers. Using too much soap will leave a residue that leaves streaks and attracts dirt. For liquid cleaners, about 20 drops per gallon (3.78 L) of water is a good guide. (cid:127) Do not heavily saturate your upholstery while cleaning. (cid:127) Damage to your vehicle’s interior may result from the use of many organic solvents such as naptha, alcohol, etc. Fabric/Carpet Use a vacuum cleaner with a soft brush attachment frequently to remove dust and loose dirt. A canister vacuum with a beater bar in the nozzle may only be used on ﬂoor carpet and carpeted ﬂoor mats. For soils, always try to remove them ﬁrst with plain water or club soda. Before cleaning, gently remove as much of the soil as possible using one of the following techniques: (cid:127) For liquids: gently blot the remaining soil with a paper towel. Allow the soil to absorb into the paper towel until no more can be removed. (cid:127) For solid dry soils: remove as much as possible and then vacuum. To clean, use the following instructions: 1. Saturate a lint-free, clean white cloth with water or club soda. 2. Wring the cloth to remove excess moisture. 483 3. Start on the outside edge of the soil and gently rub toward the center. Continue cleaning, using a clean area of the cloth each time it becomes soiled. 4. Continue to gently rub the soiled area until the cleaning cloth remains clean. 5. If the soil is not completely removed, use a mild soap solution and repeat the cleaning process that was used with plain water. If any of the soil remains, a commercial fabric cleaner or spot lifter may be necessary. When a commercial upholstery cleaner or spot lifter is to be used, test a small hidden area for colorfastness ﬁrst. If the locally cleaned area gives any impression that a ring formation may result, clean the entire surface. After the cleaning process has been completed, a paper towel can be used to blot excess moisture from the fabric or carpet. Leather A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is necessary, a soft cloth dampened with a mild soap solution can be used. Allow the leather to dry naturally. Do not use heat to dry. Never use steam to clean leather. Never use spot lifters or spot removers on leather. Many commercial leather cleaners and coatings that are sold to preserve and protect leather may permanently change the appearance and feel of your leather and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Never use shoe polish on your leather. 484 Instrument Panel, Vinyl, and Other Plastic Surfaces A soft cloth dampened with water may be used to remove dust. If a more thorough cleaning is necessary, a clean soft cloth dampened with a mild soap solution can be used to gently remove dust and dirt. Never use spot lifters or removers on plastic surfaces. Many commercial cleaners and coatings that are sold to preserve and protect soft plastic surfaces may permanently change the appearance and feel of your interior and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Some commercial products may increase gloss on your instrument panel. The increase in gloss may cause annoying reﬂections in the windshield and even make it difficult to see through the windshield under certain conditions. Care of Safety Belts Keep belts clean and dry. {CAUTION: Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water. Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required. See Recommended Fluids and Lubricants on page 517. 485 Washing Your Vehicle The paint ﬁnish on the vehicle provides beauty, depth of color, gloss retention, and durability. The best way to preserve the vehicle’s ﬁnish is to keep it clean by washing it often with lukewarm or cold water. Do not wash the vehicle in the direct rays of the sun. Use a car washing soap. Do not use strong soaps or chemical detergents. Be sure to rinse the vehicle well, removing all soap residue completely. Approved cleaning products can be obtained from your dealer. See Vehicle Care/Appearance Materials on page 490. Do not use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be ﬂushed promptly and not allowed to dry on the surface, or they could stain. Dry the ﬁnish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting. High pressure car washes may cause water to enter the vehicle. Cleaning Exterior Lamps/Lenses Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under Washing Your Vehicle on page 486. Finish Care Occasional waxing or mild polishing of your vehicle by hand may be necessary to remove residue from the paint ﬁnish. You can get GM-approved cleaning products from your dealer. See Vehicle Care/Appearance Materials on page 490. 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. 486 Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage your vehicle’s ﬁnish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint ﬁnish looking new by keeping your vehicle garaged or covered whenever possible. Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned regularly to keep their luster. Washing with water is all that is usually needed. However, you may use chrome polish on chrome or stainless steel trim, if necessary. Use special care with aluminum trim. To avoid damaging protective trim, never use auto or chrome polish, steam or caustic soap to clean aluminum. A coating of wax, rubbed to high polish, is recommended for all bright metal parts. Windshield, Backglass, 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. 487 If you use strong soaps, chemicals, Aluminum Wheels Notice: abrasive polishes, cleaners, brushes, or cleaners that contain acid on aluminum or chrome-plated wheels, you could damage the surface of the wheel(s). The repairs would not be covered by your warranty. Use only GM-approved cleaners on aluminum or chrome-plated wheels. Keep the wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied. Notice: Using chrome polish on aluminum wheels could damage the wheels. The repairs would not be covered by your warranty. Use chrome polish on chrome wheels only. The surface of these wheels is similar to the painted surface of the vehicle. Do not use strong soaps, chemicals, abrasive polishes, abrasive cleaners, cleaners with acid, or abrasive cleaning brushes on them because the surface could be damaged. Do not use chrome polish on aluminum wheels. 488 Notice: If you drive your vehicle through an automatic car wash that has silicone carbide tire cleaning brushes, you could damage the aluminum or chrome-plated wheels. The repairs would not be covered by your warranty. Never drive a vehicle equipped with aluminum or chrome-plated wheels through an automatic car wash that uses silicone carbide tire cleaning brushes. Do not take the vehicle through an automatic car wash that has silicone carbide tire cleaning brushes. These brushes can also damage the surface of these wheels. Tires To clean the tires, use a stiff brush with tire cleaner. Notice: Using petroleum-based tire dressing products on your vehicle may damage the paint ﬁnish and/or tires. When applying a tire dressing, always wipe off any overspray from all painted surfaces on your vehicle. Sheet Metal Damage If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced to restore corrosion protection. Original manufacturer replacement parts will provide the corrosion protection while maintaining the warranty. Finish Damage Any stone chips, fractures or deep scratches in the ﬁnish should be repaired right away. Bare metal will corrode quickly and may develop into major repair expense. Minor chips and scratches can be repaired with touch-up materials available from your dealer. Larger areas of ﬁnish damage can be corrected in your dealer’s body and paint shop. Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, corrosion and rust can develop on the underbody parts such as fuel lines, frame, ﬂoor pan, and exhaust system even though they have corrosion protection. At least every spring, ﬂush these materials from the underbody with plain water. Clean any areas where mud and debris can collect. Dirt packed in close areas of the frame should be loosened before being ﬂushed. Your dealer or an underbody car washing system can do this for you. Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, GM will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs ﬁrst. 489 Vehicle Care/Appearance Materials Description Usage Description Usage Swirl Remover Polish Polishing Cloth Wax-Treated Tar and Road Oil Remover Chrome Cleaner and Polish Interior and exterior polishing cloth. Removes tar, road oil, and asphalt. Use on chrome or stainless steel. White Sidewall Tire Cleaner Removes soil and black marks from whitewalls. Vinyl Cleaner Cleans vinyl. Glass Cleaner Chrome and Wire Wheel Cleaner Finish Enhancer Removes dirt, grime, smoke and ﬁngerprints. Removes dirt and grime from chrome wheels and wire wheel covers. Removes dust, ﬁngerprints, and surface contaminants. Spray on and wipe off. Cleaner Wax Foaming Tire Shine Low Gloss Wash Wax Concentrate Spot Lifter Odor Eliminator Removes swirl marks, ﬁne scratches, and other light surface contamination. Removes light scratches and protects ﬁnish. Cleans, shines, and protects in one step. No wiping necessary. Medium foaming shampoo. Cleans and lightly waxes. Biodegradable and phosphate free. Quickly removes spots and stains from carpets, vinyl, and cloth upholstery. Odorless spray odor eliminator used on fabrics, vinyl, leather and carpet. 490 Service Parts Identiﬁcation Label You will ﬁnd this label on the inside of the glove box. It is very helpful if you ever need to order parts. On this label, you will ﬁnd the following: (cid:127) VIN (cid:127) Model designation (cid:127) Paint information (cid:127) Production options and special equipment Do not remove this label from the vehicle. Vehicle Identiﬁcation Vehicle Identiﬁcation Number (VIN) This is the legal identiﬁer for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver’s side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Certiﬁcation/Tire and Service Parts labels and the certiﬁcates of title and registration. Engine Identiﬁcation The eighth character in the VIN is the engine code. This code will help you identify your vehicle’s engine, speciﬁcations, and replacement parts. 491 Electrical System Add-On Electrical Equipment Notice: Do not add anything electrical to your vehicle unless you check with your dealer ﬁrst. Some electrical equipment can damage your vehicle and the damage would not be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain your vehicle’s battery, even if your vehicle is not operating. Your vehicle has an airbag system. Before attempting to add anything electrical to your vehicle, see Servicing Your Airbag-Equipped Vehicle on page 88. Headlamps The headlamp wiring is protected by four fuses. An electrical overload will cause a lamp to go on and off. If this happens, have your headlamp wiring checked right away. Windshield Wiper Fuses The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow or ice, the wiper will stop until the motor cools. If the overload is caused by some electrical problem, be sure to get it ﬁxed. Power Windows and Other Power Options Circuit breakers protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is ﬁxed or goes away. 492 Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of ﬁres caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating. If you ever have a problem on the road and don’t have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without — like the radio or cigarette lighter — and use its fuse, if it is the correct amperage. Replace it as soon as you can. Engine Compartment Fuse Block The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle. See Engine Compartment Overview on page 390 for more information on location. Remove the primary cover by pressing the two locking tabs. Remove the secondary cover by snapping off while lifting. To reinstall the fuse panel cover, reverse the sequence. 493 L6 Engine Fuses Usage Electrically-Controlled Air Suspension Passenger’s Side High-Beam Headlamp Fuses Usage Passenger’s Side Low-Beam Headlamp Back-Up Trailer Lamps 494 Fuses Usage Fuses Usage 10 11 12 13 15 16 17 18 19 20 21 22 23 Driver’s Side High-Beam Headlamp Driver’s Side Low-Beam Headlamp Windshield Wiper Active Transfer Case Windshield Washer Powertrain Control Module B Fog Lamps Stoplamp Cigarette Lighter Electric Adjustable Pedals Truck Body Controller, Ignition 1 Crank Airbag Trailer Electric Brake Cooling Fan Horn Ignition E Electronic Throttle Control 24 25 26 27 28 29 30 31 32 33 34 35 36 50 51 52 53 54 Instrument Panel Cluster, Driver Information Center Automatic Shift Lock Control System Transmission Control Module Canister Backup Powertrain Control Module 1 Oxygen Sensor Air Conditioning Truck Body Controller 1 Trailer Anti-lock Brakes (ABS) Ignition A Blower Motor Blower Passenger’s Side Trailer Turn Driver’s Side Trailer Turn Hazard Flashers Headlamp Driver Module Air Injection Reactor (AIR) Solenoid 495 Fuses 56 58 59 Relays 37 38 39 40 41 42 43 Usage Relays Usage Air Injection Reactor (AIR) Pump Vehicle Stability Enhancement System (StabiliTrak®) Regulated Voltage Control Usage Headlamp Wiper Rear Window Wiper/Washer Fog Lamps Horn Fuel Pump Windshield Washer High-Beam Headlamp 44 45 46 47 49 55 57 Air Conditioning Cooling Fan Headlamp Driver Module Starter Electric Adjustable Pedal Air Injection Reactor (AIR) Solenoid Powertrain Miscellaneous Usage 48 Instrument Panel Battery 496 V8 Engine Fuses Usage Electrically-Controlled Air Suspension Passenger’s Side High-Beam Headlamp Fuses Usage Passenger’s Side Low-Beam Headlamp Back-Up Trailer Lamps 497 Fuses Usage Fuses Usage 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Driver’s Side High-Beam Headlamp Driver’s Side Low-Beam Headlamp Windshield Wiper Active Transfer Case Windshield Washer Powertrain Control Module B Fog Lamps Stoplamp Cigarette Lighter Ignition Coils Transmission Control Module (TCM) Canister Vent Truck Body Controller, Ignition 1 Crank Airbag Trailer Electric Brake Cooling Fan Horn Ignition E Electronic Throttle Control Instrument Panel Cluster, Driver Information Center 498 25 26 27 28 29 30 31 32 33 34 35 36 50 51 52 53 54 55 56 57 58 59 Automatic Shift Lock Control System Engine 1 Backup Powertrain Control Module 1 Powertrain Control Module Air Conditioning Injector Bank A Trailer Anti-lock Brakes (ABS) Ignition A Blower Motor Ignition B Passenger’s Side Trailer Turn Driver’s Side Trailer Turn Hazard Flashers Transmission Oxygen Sensor Bank B Oxygen Sensor Bank A Injector Bank B Headlamp Driver Module Truck Body Controller 1 Electric Adjustable Pedal Rear Underseat Fuse Block Fuses 61 62 Relays 37 38 39 40 41 42 43 44 45 46 47 49 60 Usage Vehicle Stability Enhancement System (StabiliTrak®) Regulated Voltage Control Usage Headlamp Wiper Rear Window Wiper/Washer Fog Lamps Horn Fuel Pump Windshield Washer High-Beam Headlamp Air Conditioning Cooling Fan Headlamp Driver Module Starter Electric Adjustable Pedal Powertrain Miscellaneous Usage 48 Instrument Panel Battery 499 Fuses 01 02 03 04 Usage Passenger Door Control Module Driver Door Control Module Liftgate Module 2 Truck Body Controller 3 Fuses 05 06 07 08 Usage Rear Fog Lamps Blank Truck Body Controller 2 Power Seats 500 Fuses Usage Fuses Usage 09 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 Rear Wiper Driver Door Module Ampliﬁer Passenger Door Module Rear Climate Controls Driver Side Rear Parking Lamps Blank Vehicle Center High-Mounted Stoplamp (CHMSL) Passenger Side Rear Parking Lamps Locks Liftgate Module/Driver Seat Module Blank Lock Blank Unlock Blank Blank OnStar® Overhead Battery/OnStar® System Sunroof Rainsense™ Wipers Parking Lamps 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Truck Body Controller Accessory Truck Body Controller 5 Front Wipers Vehicle Stop Transmission Control Module Heat Ventilation Air Conditioning B Front Parking Lamps Driver Side Turn Signal Heat Ventilation Air Conditioning 1 Truck Body Controller 4 Radio Trailer Park Passenger Side Turn Signal Heat Ventilation Air Conditioning Rear Fog Lamps Auxiliary Power 1 Ignition 0 Four-Wheel Drive Blank Truck Body Controller Ignition Brakes Truck Body Controller Run 501 Capacities and Speciﬁcations The following approximate capacities are given in English and metric conversions. See Recommended Fluids and Lubricants on page 517 for more information. Application Air Conditioning Refrigerant R134a Cooling System 4.2L L6 5.3L V8 Engine Oil with Filter Capacities English Metric For the air conditioning system refrigerant charge amount, see the refrigerant caution label located under the hood. See your dealer for more information. 10.8 qt 12.2 qt 10.2 L 11.6 L 4.2L L6 5.3L V8 Fuel Tank Transfer Case Lubricant Transmission (Drain and Reﬁll) Wheel Nut Torque All capacities are approximate. When adding, be sure to ﬁll to the appropriate level, as recommended in this manual. Recheck the ﬂuid level after ﬁlling. 7.0 qt 6.0 qt 22.0 gal 2.0 qt 5.0 qt 100 lb ft 6.6 L 5.7 L 83.3 L 1.8 L 4.7 L 140 Y Engine Speciﬁcations Engine 4.2L L6 5.3L V8 VIN Code Transmission Automatic Automatic Spark Plug Gap 0.040 inches (1.01 mm) 0.040 inches (1.01 mm) 502 Section 6 Maintenance Schedule Maintenance Schedule ................................ 504 Introduction ............................................... 504 Maintenance Requirements ........................ 504 Your Vehicle and the Environment ............ 505 Using the Maintenance Schedule ............... 505 Scheduled Maintenance ............................. 507 Additional Required Services ..................... 510 Maintenance Footnotes .............................. 511 Owner Checks and Services ..................... 513 At Each Fuel Fill ....................................... 513 At Least Once a Month ............................. 514 At Least Once a Year ............................... 514 Recommended Fluids and Lubricants ........ 517 Normal Maintenance Replacement Parts ..... 519 Engine Drive Belt Routing ......................... 520 Maintenance Record .................................. 521 503 Maintenance Schedule Introduction Important: Keep engine oil at the proper level and change as recommended. 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. Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner Assistance booklet or your dealer for details. 504 Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. All recommended maintenance is important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper ﬂuid levels or the wrong tire inﬂation can increase the level of emissions from your vehicle. To help protect our environment, and to keep your vehicle in good condition, be sure to maintain your vehicle properly. Using the Maintenance Schedule We 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. 505 This schedule is for vehicles that: (cid:127) carry passengers and cargo within recommended limits. You will ﬁnd these limits on the Tire and Loading Information label. See Loading Your Vehicle on page 349. (cid:127) are driven on reasonable road surfaces within legal driving limits. (cid:127) are driven off-road in the recommended manner. See Off-Road Driving on page 319. (cid:127) use the recommended fuel. See Gasoline Octane on page 382. The services in Scheduled Maintenance on page 507 should be performed when indicated. See Additional Required Services on page 510 and Maintenance Footnotes on page 511 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. See Doing Your Own Service Work on page 381. 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. 506 If you want to purchase service information, see Service Publications Ordering Information on page 545. Owner Checks and Services on page 513 tells you what should be checked, when to check it, and what you can easily do to help keep your vehicle in good condition. The proper replacement parts, ﬂuids, and lubricants to use are listed in Recommended Fluids and Lubricants on page 517 and Normal Maintenance Replacement Parts on page 519. 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. Scheduled Maintenance When the change engine oil light or CHANGE ENGINE OIL DIC message comes on, it means that service is required for your vehicle. See Change Engine Oil Light on page 214 or DIC Warnings and Messages on page 222. 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. 507 Maintenance I — Use Maintenance I if the light or message comes on within 10 months since the vehicle was purchased or Maintenance II was performed. Maintenance II — Use Maintenance II if the previous service performed was Maintenance I. Always use Maintenance II whenever the light or message comes on 10 months or more since the last service or if the light or message has not come on at all for one year. If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5 000 km) since your last service. Remember to reset the oil life system whenever the oil is changed. See Engine Oil Life System on page 398 for information on the Engine Oil Life System and resetting the system. When the change engine oil light or CHANGE ENGINE OIL DIC 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. 508 Scheduled Maintenance Service Maintenance I Maintenance II Change engine oil and ﬁlter. See Engine Oil on page 394. Reset oil life system. See Engine Oil Life System on page 398. An Emission Control Service. Visually check for any leaks or damage. See footnote (j). Inspect engine air cleaner ﬁlter. If necessary, replace ﬁlter. See Engine Air Cleaner/Filter on page 400. See footnote (k). Rotate tires and check inﬂation pressures and wear. See Tire Inspection and Rotation on page 453 and “Tire Wear Inspection” in At Least Once a Month on page 514. Inspect brake system. See footnote (a). Check engine coolant and windshield washer ﬂuid levels and add ﬂuid as needed. Perform any needed additional services. See “Additional Required Services” in this section. Inspect suspension and steering components. See footnote (b). Inspect engine cooling system. See footnote (c). Inspect wiper blades. See footnote (d). Inspect restraint system components. See footnote (e). Lubricate body components. See footnote (f). Check transmission ﬂuid level and add ﬂuid as needed. See footnote (g). • • • • • • • • • • • • • • • • • • • 509 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. Additional Required Services 75,000 25,000 (40 000) 50,000 (80 000) (120 000) • • • • • • • • • 100,000 (160 000) 125,000 (200 000) 150,000 (240 000) • • • • • • • • • • • • • • Service and Miles (Kilometers) Inspect fuel system for damage or leaks. Inspect exhaust system for loose or damaged components. Replace engine air cleaner ﬁlter. See Engine Air Cleaner/Filter on page 400. Change automatic transmission ﬂuid and ﬁlter (severe service). See footnotes (g) and (h). Change automatic transmission ﬂuid and ﬁlter (normal service). See footnote (g). Automatic transfer case only: Change transfer case ﬂuid. See footnote (g). Replace spark plugs. An Emission Control Service. 510 Additional Required Services (cont’d) Service and Miles (Kilometers) V8 engine only: Inspect spark plug wires. An Emission Control Service. Engine cooling system service (or every ﬁve years, whichever occurs ﬁrst). An Emission Control Service. See footnote (i). Inspect engine accessory drive belt. An Emission Control Service. See footnote (l). 25,000 (40 000) 50,000 (80 000) 75,000 (120 000) 100,000 (160 000) 125,000 (200 000) 150,000 (240 000) • • • Maintenance Footnotes (a) Visually inspect brake lines and hoses for proper hook-up, binding, leaks, cracks, chaﬁng, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect other brake parts, including calipers, parking brake, etc. (b) Visually inspect front and rear suspension and steering system for damaged, loose, or missing parts or signs of wear. Inspect power steering lines and hoses for proper hook-up, binding, leaks, cracks, chaﬁng, etc. (c) Visually inspect hoses and have them replaced if they are cracked, swollen, or deteriorated. Inspect all pipes, ﬁttings and clamps; replace with genuine GM parts as needed. To help ensure proper operation, a pressure test of the cooling system and pressure cap and cleaning the outside of the radiator and air conditioning condenser is recommended at least once a year. (d) Visually inspect wiper blades for wear or cracking. Replace wiper blades that appear worn or damaged or that streak or miss areas of the windshield. 511 (e) Make sure the safety belt reminder light and all your belts, buckles, latch plates, retractors, and anchorages are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that might keep a safety belt system from doing its job, have it repaired. Have any torn or frayed safety belts replaced. Also look for any opened or broken airbag coverings, and have them repaired or replaced. The airbag system does not need regular maintenance. (f) Lubricate all key lock cylinders, hood latch assembly, secondary latch, pivots, spring anchor, release pawl, rear compartment hinges, outer liftgate handle pivot points, rear door detent link, roller mechanism, liftgate handle pivot points, latch bolt, fuel door hinge, cargo door hinge, locks, and folding seat hardware. More frequent lubrication may be required when exposed to a corrosive environment. Applying silicone grease on weatherstrips with a clean cloth will make them last longer, seal better, and not stick or squeak. (g) Inspect hoses for cracks, chaﬁng, leaks, kinks, and proper installation. (h) Change automatic transmission ﬂuid and ﬁlter if the vehicle is mainly driven under one or more of these conditions: − In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. − In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police, or delivery service. (i) Drain, ﬂush, and reﬁll cooling system. This service can be complex; you should have your dealer perform this service. See Engine Coolant on page 405 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and ﬁller neck. Pressure test the cooling system and pressure cap. (j) A ﬂuid loss in any vehicle system could indicate a problem. Have the system inspected and repaired and the ﬂuid level checked. Add ﬂuid if needed. 512 (k) If you drive regularly under dusty conditions, inspect the ﬁlter at each engine oil change. (l) Visually inspect belt for fraying, excessive cracks, or obvious damage. Replace belt if necessary. Owner Checks and Services These owner checks and services should be performed at the intervals speciﬁed to help ensure the safety, dependability, and emission control performance of your vehicle. Your GM Goodwrench® dealer can assist you with these checks and services. Be sure any necessary repairs are completed at once. Whenever any ﬂuids or lubricants are added to your vehicle, make sure they are the proper ones, as shown in Recommended Fluids and Lubricants on page 517. It is important to check your oil At Each Fuel Fill It is important to perform these underhood checks at each fuel ﬁll. Engine Oil Level Check Check the engine oil level and add the proper oil if necessary. See Engine Oil on page 394 for further details. Notice: regularly and keep it at the proper level. Failure to keep your engine oil at the proper level can cause damage to your engine not covered by your warranty. Engine Coolant Level Check Check the engine coolant level and add DEX-COOL® coolant mixture if necessary. See Engine Coolant on page 405 for further details. Windshield Washer Fluid Level Check Check the windshield washer ﬂuid level in the windshield washer ﬂuid reservoir and add

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2007 GMC Envoy Owners Manual