2008 Cadillac STS Owners Manual

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The sealant and compressor kit will inject sealant and air into the tire. Sealant may leak from the puncture until the vehicle is driven and the hole has sealed. 4. Attach the sealant ﬁlling hose (A) onto the tire valve stem. Turn it clockwise until it is tight. Make sure the sealant and compressor kit on/off switch (B) is in the O (off) position. 5. Plug the air compressor accessory plug (C) into an accessory power outlet in the vehicle. See Accessory Power Outlet(s) on page 3-46 for more information. Do not slam door or close window on the compressor accessory plug cord. 5-90 The pressure gage will initially show a high pressure while the compressor pushes the sealant into the tire. Once the sealant is completely dispersed into the tire, the pressure will quickly drop and start to rise again as the tire inﬂates with air. 8. Inﬂate the tire to the recommended inﬂation pressure, found on the Tire and Loading Information label located on the vehicle’s center pillar (B-pillar) below the vehicle’s door latch, using the air pressure gage on the top of the unit. The pressure gage reads high while the compressor is running. Turn the compressor off to get an accurate pressure reading. If the recommended pressure cannot be Notice: reached after 15 minutes, the vehicle should not be driven farther. Damage to the tire is severe and the sealant will not be effective. Remove the air compressor plug from the accessory power outlet and unscrew the inﬂating hose from the tire valve. See Roadside Service on page 7-6. 9. Push the sealant and compressor kit switch to the O (off) position. 10. The tire is not sealed and will continue to leak air until the vehicle is driven and the sealant is distributed in the tire. Steps 11 through 18 must be done right after Step 10. 11. Unplug the air compressor accessory plug from the accessory power outlet in the vehicle. 12. Disconnect the sealant ﬁlling hose from the tire valve stem, by turning it counterclockwise, and replace the tire valve stem cap. Be careful when handling the tire inﬂator components as they may be hot after usage. 13. Wrap the sealant ﬁlling hose around the air compressor channel to stow it in its original location. 14. Stow the air compressor accessory plug back in the air compressor. To do this, wrap the air compressor accessory plug, snap in the plug, and then push in the bottom and then the top of the wrapped air compressor accessory plug. 5-91 15. If the ﬂat tire was able to inﬂate to the recommended inﬂation pressure, remove the maximum speed label from the sealant canister. {CAUTION: Storing the tire sealant and compressor kit 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 the tire sealant and compressor kit in the proper place. Place it in a highly visible location such as the inside of the upper left corner of the windshield or to the face of the radio/clock. The maximum speed label reminds you to drive cautiously and not to exceed 55 mph (90 km/h) until you have the damaged tire inspected and repaired. 16. Return the equipment to the proper storage location in the trunk of your vehicle. You may need to loosen the retention strap to wrap it around the sealant and compressor kit and foam container. To do this, pull apart the strap and loosen the strap at the quick release buckle. Then snap the buckle together, pull the strap tight, and secure the loose end of the strap by mating the ends. 17. Immediately drive the vehicle 5 miles (8 km) to distribute the sealant evenly in the tire. Stop at a safe location and check the tire pressure, refer to Steps 1 through 8 under “Using the Air Compressor without Sealant” next in this section. 5-92 18. If the tire pressure has fallen more then 10 psi (68 kPa), below the recommended inﬂation pressure, stop driving the vehicle. The tire is too severely damaged and the tire sealant and compressor kit cannot seal the tire. See Roadside Service on page 7-6 for more information. If the tire pressure has not dropped more than 10 psi (68 kPa) from the recommended inﬂation pressure, you can inﬂate the tire back up to the recommended inﬂation pressure. 19. Wipe off any sealant from the wheel, tire, and vehicle with a rag. 20. Dispose of the sealant canister at a local dealer/retailer or in accordance with your local state codes and practices. After using the sealant canister, replace it with a new canister from your dealer/retailer. 21. After temporarily sealing a tire with the tire sealant and compressor kit, take your vehicle to your dealer/retailer to have the tire inspected and repaired. Using the Air Compressor without Sealant To use the air compressor to inﬂate a tire with air only and not sealant: 1. Remove the air compressor inﬂating hose connector from the bottom of the air compressor. 2. Unlock the air compressor hose from the sealant canister by pulling up on the lever. 5-93 3. Pull the air compressor inﬂator hose from the sealant canister. 4. Push the air compressor inﬂator hose onto the tire valve stem and push the lever down to secure in place. 5. Plug the air compressor accessory plug into an accessory power outlet in the vehicle. See Accessory Power Outlet(s) on page 3-46 for more information. {CAUTION: Idling the engine in a closed-in place or with the climate control system off can cause deadly carbon monoxide (CO). See Engine Exhaust on page 2-38. 6. Start the vehicle. See Starting the Engine on page 2-29 for more information. The vehicle must be running while using the air compressor. {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 the tire to its recommended pressure. Do not exceed 36 psi (248 kPa). 7. Move the sealant and compressor kit switch to the I (on) position. 8. Inﬂate the tire up to the recommended inﬂation pressure using the air pressure gage on the top of the unit. The pressure gage read high while the compressor is running. Turn the compressor off to get an accurate reading. 5-94 9. Turn off the air compressor by moving the switch to the O (off) position. {CAUTION: Storing the tire sealant and compressor kit 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 the tire sealant and compressor kit in the proper place. 10. Disconnect the compressor inﬂator hose and wrap the hose in the bottom of the sealant and compressor kit. 11. Place the equipment in the original location in the trunk of your vehicle. Removal and Installation of the Sealant Canister To remove the sealant canister: 1. Unlock the air compressor inﬂator hose from the sealant canister by pulling the lever up. 2. Disconnect the air compressor inﬂator hose from the sealant canister. 5-95 3. Unwrap the sealant ﬁlling hose from the compressor. 4. Turn the sealant canister so the inﬂator ﬁlling hose is aligned with the slot in the compressor. 5. Lift the sealant canister from the compressor and replace with a new sealant canister. See your dealer/retailer for more information. 5-96 To install a new sealant canister: 1. Align the sealant ﬁlling hose with the slot in the air compressor. 2. Push the sealant canister down and turn it clockwise. 3. Wrap the sealant ﬁlling hose around the air compressor channel to stow it in its original location. 4. Push the air compressor inﬂator hose onto the sealant canister inlet and push the lever down. Changing a Flat Tire If you have an STS-V model, there is no spare tire and no tire changing equipment. Your vehicle is equipped with run-ﬂat tires. See Run-Flat Tires (STS-V) on page 5-65 for more information. If you have an STS model, your vehicle may be equipped with a tire inﬂator kit. See Tire Sealant and Compressor Kit on page 5-87 for more information. If your vehicle is not equipped with a tire inﬂator kit, follow the directions for changing a ﬂat tire in this section. 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 3-6 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). 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. When your vehicle has a ﬂat tire, use the following example as a guide to assist you in the placement of wheel blocks. The following information will tell you next how to use the jack and change a tire. 5-97 Removing the Spare Tire and Tools The equipment you will need is located in the trunk. To gain access to the compact spare tire and jacking equipment: 1. Open the trunk. See Trunk on page 2-16 for more information. 2. Remove the compact spare tire cover. 4. Remove the compact spare tire. See Compact Spare Tire on page 5-106 for more information about the compact spare tire. The tools you will be using include the jack (A) and the wheel wrench (B). 3. Turn the nut holding the jack package container counterclockwise and remove it. Then remove the jack and wheel wrench. 5-98 Removing the Flat Tire and Installing the Spare Tire 1. Do a safety check before proceeding. See Changing a Flat Tire on page 5-96 for more information. 2. Loosen all of the wheel nuts, but do not remove them yet, using the wheel 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. 3. Find the vehicle’s jacking location using the diagram above and corresponding V–shaped notches located in the plastic molding on the vehicle’s frame. The notches in the plastic molding are marked with a triangle shape. 5-99 4. Attach the wheel wrench to the jack. {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. 5-100 {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 you position the jack under the rocker Notice: molding and attempt to raise the vehicle, you could break the molding and/or cause other damage to your vehicle. Always position the jack so that when the jack head is raised, it will ﬁt ﬁrmly in the notch located inboard from the rocker molding. 5. Turn the wheel wrench counterclockwise to lower the jack lift head until the jack ﬁts under the vehicle. 6. Raise the jack by turning the wheel wrench clockwise until the slots in the jack head ﬁt into the metal ﬂange located behind the triangle on the plastic molding as shown. 8. Raise the vehicle by turning the wheel wrench clockwise. Raise the vehicle far enough off the ground for the compact spare tire to ﬁt under the vehicle. 7. Put the compact spare tire near you. 5-101 9. Remove all the wheel nuts and 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. See Changing a Flat Tire on page 5-96. {CAUTION: Never use oil or grease on studs or nuts. Because the nuts might come loose. The vehicle’s wheel could fall off, causing a crash. {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. (Continued) CAUTION: 5-102 10. Remove any rust or dirt from the wheel bolts, mounting surfaces, and spare wheel. 11. Install the spare tire. 12. Put the wheel nuts back on with the rounded end of the nuts toward the wheel. 13. Tighten each wheel nut by turning it clockwise with your hand until the wheel is held against the hub. 14. Lower the vehicle by turning the wheel wrench counterclockwise. Lower the jack completely. 5-103 {CAUTION: Incorrect or improperly tightened wheel nuts can cause the wheel to come loose and even come off. This could lead to a crash. If you have to replace them, be sure to get new original equipment wheel nuts. Stop somewhere as soon as you can and have the nuts tightened with a torque wrench to the proper torque speciﬁcation. See Capacities and Speciﬁcations on page 5-128 for wheel nut torque speciﬁcation. Improperly tightened wheel nuts can lead Notice: to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque speciﬁcation. See Capacities and Speciﬁcations on page 5-128 for the wheel nut torque speciﬁcation. 5-104 15. Tighten the wheel nuts ﬁrmly in a crisscross sequence as shown. 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. Full-Size Tire and Tools After you have put the compact spare tire on your vehicle, you will need to do the following to store the ﬂat tire in your trunk. 1. Open the trunk. See Trunk on page 2-16. 2. Store the jack and wheel wrench in the jack container in the trunk. When storing the jack, in the container, it must be raised until the screw end is ﬂush with the edge of the jack. 3. Store the ﬂat tire as far forward in the trunk as possible. The compact spare is for temporary use only. Replace the compact spare tire with a full-size tire as soon as you can. Compact Spare Tire and Tools Use the following diagram as a guide for storing the compact spare tire and tools in the trunk: A. Compact D. Jack Container Spare Tire Cover B. Plastic Wing Nut Package (With Wheel Wrench and Jack) E. Compact Spare Tire F. Foam Support G. Bolt C. Retainer 1. Open the trunk. See Trunk on page 2-16. 2. Make sure the foam support (F) is in place in the trunk area. 5-105 3. Reinstall the compact spare tire (E) making sure to line up the wheel center hole with the bolt (G) and place on the compartment ﬂoor. 4. Insert the jack container (D) with wheel wrench and jack into the center of the compact spare tire making sure to line up the wheel nut hole with the bolt (G) on the compartment ﬂoor. 5. Secure the tire and wheel with the retainer (C) and wing nut (B). 6. Reinstall the compact spare tire cover (A). Compact Spare Tire Although the compact spare tire was fully inﬂated when the vehicle was new, it can lose air after a time. Check the inﬂation pressure regularly. It should be 60 psi (420 kPa). After installing the compact spare on the vehicle, you should stop as soon as possible and make sure the spare tire is correctly inﬂated. The compact spare is made to perform well at speeds up to 65 mph (105 km/h) for distances up to 3,000 miles (5 000 km). The tire inﬂation monitor system must be calibrated after installing or removing the compact spare. See Tire Pressure Monitor System on page 5-68. The system may not work correctly when the compact spare is installed on the vehicle. It’s best to replace the spare with a full-size tire as soon as soon as possible. The spare will last longer and be in good shape if needed it again. If your vehicle has All Wheel Drive (AWD) it could also have an StabiliTrak® 3. See StabiliTrak® System on page 4-8 for more information. If the compact spare tire is installed on a vehicle with the StabiliTrak® 3 System, the vehicle operates in the Stability Secure Mode. The STABILITY SECURE MODE message displays on the Driver Information Center (DIC). See DIC Warnings and Messages on page 3-80 for more information. Notice: When the compact spare is installed, do not take your vehicle through an automatic car wash with guide rails. The compact spare can get caught on the rails. That can damage the tire and wheel, and maybe other parts of your vehicle. Do not use the compact spare on other vehicles. And do not mix the compact spare tire or wheel with other wheels or tires. They will not ﬁt. Keep the spare tire and its wheel together. Notice: Tire chains will not ﬁt your compact spare. Using them can damage your vehicle and can damage the chains too. Do not use tire chains on your compact spare. 5-106 Appearance Care Interior Cleaning Your vehicle’s interior will continue to look its best if it is cleaned often. Although not always visible, dust and dirt can accumulate on your upholstery. Dirt can damage carpet, fabric, leather, and plastic surfaces. Regular vacuuming is recommended to remove particles from your upholstery. It is important to keep your upholstery from becoming and remaining heavily soiled. Soils should be removed as quickly as possible. Your vehicle’s interior may experience extremes of heat that could cause stains to set rapidly. Lighter colored interiors may require more frequent cleaning. Use care because newspapers and garments that transfer color to your home furnishings may also transfer color to your vehicle’s interior. When cleaning your vehicle’s interior, only use cleaners speciﬁcally designed for the surfaces being cleaned. Permanent damage may result from using cleaners on surfaces for which they were not intended. If you use abrasive cleaners when cleaning Use glass cleaner only on glass. Remove any accidental over-spray from other surfaces immediately. To prevent over-spray, apply cleaner directly to the cleaning cloth. Notice: glass surfaces on your vehicle, you could scratch the glass and/or cause damage to the rear window defogger. When cleaning the glass on your vehicle, use only a soft cloth and glass cleaner. Many cleaners contain solvents that may become concentrated in your vehicle’s breathing space. Before using cleaners, read and adhere to all safety instructions on the label. While cleaning your vehicle’s interior, maintain adequate ventilation by opening your vehicle’s doors and windows. Dust may be removed from small buttons and knobs using a small brush with soft bristles. Your dealer/retailer has a product for cleaning your vehicle’s glass. Should it become necessary, you can also obtain a product from your dealer/retailer to remove odors from your vehicle’s upholstery. 5-107 Do not clean your vehicle using the following cleaners or techniques: (cid:129) Never use a knife or any other sharp object to remove a soil from any interior surface. (cid:129) Never use a stiff brush. It can cause damage to your vehicle’s interior surfaces. (cid:129) Never apply heavy pressure or rub aggressively with a cleaning cloth. Use of heavy pressure can damage your interior and does not improve the effectiveness of soil removal. (cid:129) Use only mild, neutral-pH soaps. Avoid laundry detergents or dishwashing soaps with degreasers. Using too much soap will leave a residue that leaves streaks and attracts dirt. For liquid cleaners, about 20 drops per gallon (3.78 L) of water is a good guide. (cid:129) Do not heavily saturate your upholstery while cleaning. (cid:129) Damage to your vehicle’s interior may result from the use of many organic solvents such as naptha, alcohol, etc. 5-108 Fabric/Carpet Use a vacuum cleaner with a soft brush attachment frequently to remove dust and loose dirt. A canister vacuum with a beater bar in the nozzle may only be used on ﬂoor carpet and carpeted ﬂoor mats. For soils, always try to remove them ﬁrst with plain water or club soda. Before cleaning, gently remove as much of the soil as possible using one of the following techniques: For liquids: gently blot the remaining soil with a paper towel. Allow the soil to absorb into the paper towel until no more can be removed. For solid dry soils: remove as much as possible and then vacuum. To clean, use the following instructions: 1. Saturate a lint-free, clean white cloth with water or club soda. 2. Wring the cloth to remove excess moisture. 3. Start on the outside edge of the soil and gently rub toward the center. Continue cleaning, using a clean area of the cloth each time it becomes soiled. 4. Continue to gently rub the soiled area until the cleaning cloth remains clean. 5. If the soil is not completely removed, use a mild soap solution and repeat the cleaning process that was used with plain water. (cid:129) (cid:129) If any of the soil remains, a commercial fabric cleaner or spot lifter may be necessary. When a commercial upholstery cleaner or spot lifter is to be used, test a small hidden area for colorfastness ﬁrst. If the locally cleaned area gives any impression that a ring formation may result, clean the entire surface. After the cleaning process has been completed, a paper towel can be used to blot excess moisture from the fabric or carpet. Leather A soft cloth dampened with water can be used to remove dust. If a more thorough cleaning is necessary, a soft cloth dampened with a mild soap solution can be used. Allow the leather to dry naturally. Do not use heat to dry. Never use steam to clean leather. Never use spot lifters or spot removers on leather. Many commercial leather cleaners and coatings that are sold to preserve and protect leather may permanently change the appearance and feel of your leather and are not recommended. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle’s interior because they can alter the appearance by increasing the gloss in a non-uniform manner. Never use shoe polish on leather. 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. 5-109 Wood Panels Use a clean cloth moistened in warm, soapy water (use mild dish washing soap). Dry the wood immediately with a clean cloth. Speaker Covers Vacuum around a speaker cover gently, so that the speaker will not be damaged. Clean spots with just water and mild soap. 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. 5-110 Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth. During very cold, damp weather frequent application may be required. See Recommended Fluids and Lubricants on page 6-13. Washing Your Vehicle The best way to preserve your vehicle’s ﬁnish is to keep it clean by washing it often. Notice: Certain cleaners contain chemicals that can damage the emblems or nameplates on your vehicle. Check the cleaning product label. If it states that is should not be used on plastic parts, do not use it on your vehicle or damage may occur and it would not be covered by the warranty. Do not wash the vehicle in direct sunlight. Use a car washing soap. Do not use cleaning agents that are petroleum based or that contain acid or abrasives, as they can damage the paint, metal or plastic on your vehicle. Approved cleaning products can be obtained from your dealer/retailer. See Vehicle Care/Appearance Materials on page 5-115. Follow all manufacturers’ directions regarding correct product usage, necessary safety precautions and appropriate disposal of any vehicle care product. Rinse the vehicle well, before washing and after to remove all cleaning agents completely. If they are allowed to dry on the surface, they could stain. Dry the ﬁnish with a soft, clean chamois or an all-cotton towel to avoid surface scratches and water spotting High pressure car washes may cause water to enter the vehicle. Avoid using high pressure washes closer than 12 inches (30 cm) to the surface of the vehicle. Use of power washers exceeding 1,200 psi (8 274 kPa) can result in damage or removal of paint and decals. Cleaning Exterior Lamps/Lenses Use only lukewarm or cold water, a soft cloth and a car washing soap to clean exterior lamps and lenses. Follow instructions under Washing Your Vehicle on page 5-110. Finish Care Occasional waxing or mild polishing of your vehicle by hand may be necessary to remove residue from the paint ﬁnish. You can get approved cleaning products from your dealer/retailer. See Vehicle Care/Appearance Materials on page 5-115. If your vehicle has a basecoat/clearcoat paint ﬁnish, the clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint ﬁnish. Notice: Machine compounding or aggressive polishing on a basecoat/clearcoat paint ﬁnish may damage it. Use only non-abrasive waxes and polishes that are made for a basecoat/clearcoat paint ﬁnish on your vehicle. Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage your vehicle’s ﬁnish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint ﬁnish looking new by keeping your vehicle garaged or covered whenever possible. 5-111 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 and Wiper Blades Clean the outside of the windshield with glass cleaner. Clean the rubber blades using a lint free cloth or paper towel soaked with windshield washer ﬂuid or a mild detergent. Wash the windshield thoroughly when cleaning the blades. Bugs, road grime, sap, and a buildup of vehicle wash/wax treatments may cause wiper streaking. Replace the wiper blades if they are worn or damaged. Wipers can be damaged by: (cid:129) Extreme dusty conditions (cid:129) Sand and salt (cid:129) Heat and sun (cid:129) Snow and ice, without proper removal 5-112 Aluminum or Chrome-Plated Wheels and Trim Your vehicle may have either aluminum or chrome-plated wheels. Keep the wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied. Notice: Chrome wheels and other chrome trim may be damaged if you do not wash your vehicle after driving on roads that have been sprayed with magnesium, calcium or sodium chloride. These chlorides are used on roads for conditions such as ice and dust. Always wash your vehicle’s chrome with soap and water after exposure. Notice: abrasive polishes, cleaners, brushes, or cleaners that contain acid on aluminum or chrome-plated wheels, you could damage the surface of the wheel(s). The repairs would not be covered by your warranty. Use only approved cleaners on aluminum or chrome-plated wheels. If you use strong soaps, chemicals, The surface of these wheels is similar to the painted surface of your vehicle. Do not use strong soaps, chemicals, abrasive polishes, abrasive cleaners, cleaners with acid, or abrasive cleaning brushes on them because you could damage the surface. Do not use chrome polish on aluminum wheels. Notice: Using chrome polish on aluminum wheels could damage the wheels. The repairs would not be covered by your warranty. Use chrome polish on chrome wheels only. Use chrome polish only on chrome-plated wheels, but avoid any painted surface of the wheel, and buff off immediately after application. Notice: automatic car wash that has silicone carbide tire cleaning brushes, you could damage the aluminum or chrome-plated wheels. The repairs would not be covered by your warranty. Never drive a vehicle equipped with aluminum or chrome-plated wheels through an automatic car wash that uses silicone carbide tire cleaning brushes. If you drive your vehicle through an Tires To clean the tires, use a stiff brush with tire cleaner. Notice: Using petroleum-based tire dressing products on your vehicle may damage the paint ﬁnish and/or tires. When applying a tire dressing, always wipe off any overspray from all painted surfaces on your vehicle. 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. 5-113 Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on the vehicle. This damage can take two forms: blotchy, ring-shaped discolorations, and small, irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, we will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever occurs ﬁrst. Finish Damage Any stone chips, fractures or deep scratches in the ﬁnish should be repaired right away. Bare metal will corrode quickly and may develop into major repair expense. Minor chips and scratches can be repaired with touch-up materials available from your dealer/retailer. Larger areas of ﬁnish damage can be corrected in your dealer’s/retailer’s body and paint shop. Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, corrosion and rust can develop on the underbody parts such as fuel lines, frame, ﬂoor pan, and exhaust system even though they have corrosion protection. At least every spring, ﬂush these materials from the underbody with plain water. Clean any areas where mud and debris can collect. Dirt packed in close areas of the frame should be loosened before being ﬂushed. Your dealer/retailer or an underbody car washing system can do this for you. 5-114 Vehicle Care/Appearance Materials Description Usage Description Usage Swirl Remover Polish Polishing Cloth Tar and Road Oil Remover Chrome Cleaner and Polish White Sidewall Tire Cleaner Interior and exterior polishing cloth. Removes tar, road oil, and asphalt. Use on chrome or stainless steel. Removes soil and black marks from whitewalls and raised white lettering. Vinyl Cleaner Cleans vinyl. Glass Cleaner Chrome Wheel Cleaner Finish Enhancer Removes dirt, grime, smoke and ﬁngerprints. Removes dirt and grime from chrome wheels. 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 tires. No wiping necessary. Medium foaming shampoo. Cleans and lightly waxes. Biodegradable and phosphate free. Quickly removes spots and stains from carpets, vinyl, and cloth upholstery. Odorless spray odor eliminator used on fabrics, vinyl, leather and carpet. 5-115 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 side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certiﬁcation and Service Parts labels and the certiﬁcates of title and registration. Engine Identiﬁcation The eighth character in the VIN is the engine code. This code helps you identify your vehicle’s engine, speciﬁcations, and replacement parts. 5-116 Service Parts Identiﬁcation Label This label is on the spare tire cover. It is very helpful if you ever need to order parts. The label has the following information: (cid:129) Vehicle Identiﬁcation Number (VIN) (cid:129) Model designation (cid:129) Paint information (cid:129) Production options and special equipment Do not remove this label from the vehicle. Electrical System Add-On Electrical Equipment Notice: Do not add anything electrical to your vehicle unless you check with your dealer/retailer ﬁrst. Some electrical equipment can damage your vehicle and the damage would not be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain your vehicle’s battery, even if your vehicle is not operating. Your vehicle has an airbag system. Before attempting to add anything electrical to your vehicle, see Servicing Your Airbag-Equipped Vehicle on page 1-64. Headlamp Wiring The headlamp wiring is protected by fuses in the fuse block. An electrical overload will cause the lamps to turn off. If this happens, have your headlamp wiring checked right away. Windshield Wiper Fuses The windshield wiper motor is protected by an internal circuit breaker. If the wiper motor overheats due to heavy snow, the wipers will stop until the motor cools and will then restart. Power Windows and Other Power Options Circuit breakers in the fuse block 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. Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. 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. 5-117 Underhood Fuse Block 5-118 The underhood fuse block is located in the front of the engine compartment on the passenger’s side of the vehicle. See Engine Compartment Overview on page 5-11 for more information on location and removal procedure for the front compartment underhood sights shields. To access the fuses, push in the tabs located on each side of the fuse block cover, then lift the cover off. Notice: Spilling liquid on any electrical components on your vehicle may damage it. Always keep the covers on any electrical component. Fuses JCase ABS MTR AFS BLWR FAN 1 FAN 2 LPDB 1 LPDB 2 RPDB 1 RPDB 2 SPARE SPARE STRTR Usage ABS Module- ABS Module-StabiliTrak® Active Front Steering Blower Motor Cooling Fan-Low Speed Cooling Fan-High Speed Driver Side Rear Fuse Block Driver Side Rear Fuse Block Passenger Side Rear Fuse Block Passenger Side Rear Fuse Block Spare Spare Starter Fuses Mini A/C CLTCH ABS ABS IGN Usage Air Conditioning Compressor Clutch ABS Module-StabiliTrak® Antilock Brake Controller AUX OUTLET Rear Accessory Power Outlet BRK VAC PUMP CCP CCP/RLY COILS ECM 1 ECM/TCM BATT Brake Vacuum Pump Climate Control Panel Climate Control Panel, Headlamp Level Control, Active Cruise Control, Relay Coils, Starter, Front Blower Engine Control Module (ECM) ECM, Transmission Control Module (TCM) Cluster Panel Module (I/P MDL) ECM/TCM IGN ECM, TCM, Instrument Panel EKM/I/P MDL Easy Key Module (EKM), Instrument EVEN COILS Even Ignition Coils, Even Fuel FOG LAMP FRT PWR OUTLET Injectors Front Fog Lamps Front Accessory Power Outlet FUEL COOL HORN HTD WASH/AQS Fuel Cooling Horn Heated Headlamp Washer, Air Quality Sensor 5-119 Usage Fuses Mini Usage Fuses Mini HUD I/BEAM Heads-Up Display, Steering Column Switch IntelliBeam Relay I/P MDL/ALDL Instrument Panel Module, Assembly LIC DIM Line Data Link Connector License Plate, Instrument Panel Dimming LT HI BEAM Driver Side High Beam Headlamp LT LO BEAM Driver Side Low Beam Headlamp Driver Side Park Lamp/Driver Side Taillamp LT PRK ODD COILS Odd Ignition Coils, Odd Fuel Injectors POST O2 SNSR Post Oxygen Sensor PRE O2 SNSR Pre Oxygen Sensor, CAM Sensors RAIN Rain Sensor, Relay Coil: Headlamp Wash Headlamp SNSR/TPM RT HI BEAM Passenger Side High Beam RT LO BEAM Passenger Side Low Beam Headlamp Passenger Side Park Lamp, Passenger Side Taillamp Spare Spare SPARE SPARE RT PRK 5-120 SPARE SPARE SPARE SPARE SPARE V/CHK WPR Spare Spare Spare Spare Spare Instrument Panel Module-Voltage Check Wipe/Wash Module Assembly WPR SW/VICS Rain Sensor, Wiper Switch Relays A/C CMPRSR CLTCH ACCY BRK VAC PUMP FAN S/P FOG LAMP FRT BLWR FUEL COOL HI BEAM Usage Air Conditioning Compressor Clutch Accessory Rain Sensor, Headlamp Washer Relay Coil, Windshield Wiper/Washer Module Brake Vacuum Pump Cooling Fan Series/Parallel Fog Lamps Front Blower Motor Fuel Cooling Pump High Beam Headlamp HI FAN SPD Cooling Fan High Speed HORN Horn Relays Usage LO FAN SPD Cooling Fan Low Speed LOW BEAM W/O HID/HID Low Beam Headlamp, High Intensity Discharge (HID) Parking Lamps, Instrument Panel Dimming, Rear License Plate Lamps Engine Controls Heated Washer Nozzle, Air Quality, Antilock Brake System, Climate Control Panel, TCM, ECM, Instrument Control Panel, Instrument Control Panel Cluster Spare Spare Spare Starter Windshield Wiper High Speed PRK LAMP PWR/TRN RUN CRNK SPARE SPARE SPARE STRTR WPR HI Circuit Breakers Usage HDLP WASH Headlamp Washer Motor (Circuit Breaker) If you touch the exposed wires with the Rear Underseat Fuse Block Removing the Rear Seat Cushion Notice: metal on the seat cushion, you could cause a short that could damage the battery and or wires. Avoid contact between the rear seat and the fuse center whenever you remove or reinstall the rear seat. Do not remove covers from any of the covered parts, and do not store anything under the seats. To remove the rear seat cushion, do the following: 1. Pull up on the front of the cushion to release the front hooks. 2. Pull the cushion up and out toward the front of the vehicle. 5-121 To reinstall the rear seat cushion, do the following: {CAUTION: A safety belt that is not properly routed through the seat cushion or is twisted will not provide the protection needed in a crash. If the safety belt has not been routed through the seat cushion at all, it will not be there to work for the next passenger. The person sitting in that position could be badly injured. After reinstalling the seat cushion, always check to be sure that the safety belts are properly routed and are not twisted. 1. Buckle the center passenger position safety belt, then route the safety belts through the proper slots in the seat cushion. Do not let the safety belts get twisted. 5-122 2. Slide the rear of the cushion up and under the seatback so the rear-locating guides hook into the wire loops on the back frame. 3. With the seat cushion lowered, push rearward and then press down on the seat cushion until the spring locks on both ends engage. 4. Check to make sure the safety belts are properly routed and that no portion of any safety belt is trapped under the seat. Also make sure the seat cushion is secured. Rear Underseat Fuse Block There is a fuse block located under the rear seat on the driver’s side and passenger’s side of the vehicle. The rear seat cushion must be removed to access the fuse blocks. See “Removing the Rear Seat Cushion” listed previously in this section. To access the fuses, push in the two tabs, then lift the cover off. Your vehicle may not have all the fuses listed below. 5-123 Driver’s Side Fuses AMP Ampliﬁer Usage INCLR PUMP Inner Cooler Pump (Option) THEFT/SHFT MRTD MDL Magnetic Ride Control Module Theft Sensors, Auto Shifter, Power Sounder (Option) 5-124 Fuses Usage REAR DR MDL Rear Door Modules ELC EXH DDM Electronic Level Control, Exhaust Solenoid (Option) Driver Door Module, Front Door SubWoofers (Option) Fuses Usage TV/VICS/SCM Infotainment (Export Only), Supervisory Control Module (Option) Rear Heated Seats Spare Spare Front Passenger Heated Seat, Auto Shifter, Occupant Protection, Electronic Tension Reducer for Seatbelt Rear Shelf Speaker (Option) REAR HTD/SEATS SPARE SPARE IGN3 REAR SHLF SPKR MSM TRUNK Memory Seat Module Lumbar Trunk Release, Valet Lockout Switch RELSE SW BCK/UP LAMP Reverse Lamps, Rear Parking Aid, AIR BAG/BATT Airbag POS LAMPS Rear Taillamps ELC CMPRSR Automatic Level Control (Option) Inside Rearview Mirrors Relays Usage INCLR PUMP Inner Cooler Pump (Option) ELC CMPRSR Electronic Level Control, Compressor (Option) Relays LT POS RT POS RUN Usage Left Rear Taillamp, Position Lamps (Option) Right Rear Taillamp, Position Lamps (Option) Ignition 3 STDBY LAMP Rear Taillamps, Position Lamps TRUNK RELSE Trunk Release Motor BCK/UP LAMP Reverse Lamps, Rear Parking Aid, (Option) Inside Rearview Mirror Circuit Breakers PWR SEATS Power Seats Diodes SPARE Spare Joint Connector Usage Usage Usage J/C Splice Pack (Green) 5-125 Passenger’s Side Fuses Usage AIRBAG/IGN Sensing and Diagnostic Monitor, Automatic Occupant Sensor, Passenger Supplemental Inﬂatable Restraint CNSTR/VENT Canister Vent Solenoid Rear Differential Pump DIFF PUMP Fuses FRT PDM FUEL PUMP HTD STR RF HTD/SEAT/XM Usage Front Passenger Door Module, Right Power Subwoofer Fuel Pump Heated Steering Wheel Front Passenger Heated Seat, S-Band™ Antenna 5-126 Fuses Usage RDO/ONSTAR Radio, OnStar® Interior Lamps INT LAMP LT TRN/LDW Left Turn Signal, Lane Departure REAR DEFOG Rear Defogger Warning (Option) REAR/FOG RIM RIM /RPA / ISRVM /CLM RUN/CRNK S/ROOF SPARE Rear Fog Lamps (Option) Rear Integration Module Rear Integration Module, Rear Parking Aid, Inside Rearview Mirror, Column Lock Module, Power Sounder, Active Front Steering (AFS), Supervisory Control Module UHBEC Run, CRNK Relay Coil, Rear Fog Lamp Relay Coil Sun Roof Module (Option) Spare STOP LAMPS Stop Lamps RT TRN/SZBA Right Turn Signal, Side Blind Zone Alert (Option) Relays DIFF PUMP FUEL PUMP INT LAMP Usage Rear Differential Pump (Option) Fuel Pump Interior Lamps Relays Usage REAR DEFOG Rear Defogger REAR/FOG RUN/CRNK SPARE STOP LAMP Rear Fog Lamps (Option) Ignition 1 Spare Stop Lamp Circuit Breakers WINDOW MTRS Diodes Usage Power Window Motors Circuit Breaker TRUNK DIODE Trunk Release Joint Connector Usage Usage J/C Splice Pack (Blue) 5-127 Capacities and Speciﬁcations The following approximate capacities are given in English and metric conversions. See Recommended Fluids and Lubricants on page 6-13 for more information. Application Air Conditioning Refrigerant R134a Cooling System 3.6L Engine 4.4L (V-Series) Engine 4.6L Engine Intercooler System 4.4L (V-Series) Engine Brake Fluid Capacities Engine Oil with Filter 3.6L Engine 4.4L (V-Series) Engine 4.6L Engine Fuel Tank 5-128 Capacities English Metric For the air conditioning system refrigerant charge amount, see the refrigerant caution label located under the hood. See your dealer/retailer for more information. 12.1 qt 13.4 qt 12.5 qt 2.6 qt 1.1 qt 6.0 qt 9.0 qt 8.0 qt 17.5 gal 11.5 L 12.7 L 11.8 L 2.5 L 1.0 L 5.7 L 8.5 L 7.6 L 66.2 L Transmission (Pan Removal and Filter Replacement) Application 6-Speed Automatic 6-Speed Automatic (V-Series) Capacities English 6.7 qt 6.5 qt 100 lb ft Metric 6.3 L 6.2 L 140 Y Wheel Nut Torque All capacities are approximate. When adding, be sure to ﬁll to the approximate level as recommended in this manual. Recheck the ﬂuid level after ﬁlling. Engine 3.6L SIDI V6 4.4L DOHC V8 (V-Series) 4.6L DOHC V8 Engine Speciﬁcations VIN Code Transmission Spark Plug Gap Automatic Automatic Automatic 0.044 inches (1.11 mm) 0.040 inches (1.02 mm) 0.050 inches (1.27 mm) Engine 4.4L V8 (V-Series) Horsepower 469hp (350 kW) @ 6400 rpm Torque Displacement Compression Ratio 439 lb ft (595 Nm) @ 3800 rpm 4.4L 9.0:1 STS-V Engine Data 5-129 ✍ NOTES 5-130 Section 6 Maintenance Schedule Maintenance Schedule ......................................6-2 Introduction ...................................................6-2 Maintenance Requirements ..............................6-2 Your Vehicle and the Environment ....................6-2 Using the Maintenance Schedule ......................6-3 Scheduled Maintenance ...................................6-4 Additional Required Services ............................6-6 Maintenance Footnotes ...................................6-8 Owner Checks and Services ............................6-9 At Each Fuel Fill ............................................6-9 At Least Once a Month .................................6-10 At Least Once a Year ...................................6-11 Recommended Fluids and Lubricants ...............6-13 Normal Maintenance Replacement Parts ..........6-15 Engine Drive Belt Routing ..............................6-16 Maintenance Record .....................................6-18 6-1 Maintenance Schedule Introduction Important: Keep engine oil at the proper level and change as recommended. Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner Assistance booklet or your dealer/retailer for details. Maintenance Requirements Notice: Maintenance intervals, checks, inspections, replacement parts, and recommended ﬂuids and lubricants as prescribed in this manual are necessary to keep your vehicle in good working condition. Any damage caused by failure to follow scheduled maintenance might not be covered by warranty. 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. 6-2 Using the Maintenance Schedule We want to help you keep your vehicle in good working condition. But we do not know exactly how you will drive it. You might drive very short distances only a few times a week. Or you might drive long distances all the time in very hot, dusty weather. You might use your vehicle in making deliveries. Or you might drive it to work, to do errands, or in many other ways. Because of all the different ways people use their vehicles, maintenance needs vary. You might need more frequent checks and replacements. So please read the following and note how you drive. If you have any questions on how to keep your vehicle in good condition, see your dealer/retailer. This schedule is for vehicles that: carry passengers and cargo within recommended limits. You will ﬁnd these limits on the Tire and Loading Information label. See Loading Your Vehicle on page 4-26. are driven on reasonable road surfaces within legal driving limits. use the recommended fuel. See Gasoline Octane on page 5-5. The services in Scheduled Maintenance on page 6-4 should be performed when indicated. See Additional Required Services on page 6-6 and Maintenance Footnotes on page 6-8 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 dealer/retailer to have a qualiﬁed technician do the work. See Doing Your Own Service Work on page 5-4. Some maintenance services can be complex. So, unless you are technically qualiﬁed and have the necessary equipment, you should have your dealer/retailer do these jobs. 6-3 (cid:129) (cid:129) (cid:129) When you go to your dealer/retailer for your service needs, you will know that trained and supported service technicians will perform the work using genuine parts. If you want to purchase service information, see Service Publications Ordering Information on page 7-15. Owner Checks and Services on page 6-9 tells you what should be checked, when to check it, and what you can easily do to help keep your vehicle in good condition. The proper replacement parts, ﬂuids, and lubricants to use are listed in Recommended Fluids and Lubricants on page 6-13 and Normal Maintenance Replacement Parts on page 6-15. When your vehicle is serviced, make sure these are used. All parts should be replaced and all necessary repairs done before you or anyone else drives the vehicle. We recommend the use of genuine parts from your dealer/retailer. Scheduled Maintenance To maintain the ride, handling, and performance of your vehicle, it is important that the ﬁrst tire rotation service be performed when the vehicle has 5,000 to 8,000 miles (8 000 to 13 000 km). Check tires for inﬂation pressures and wear. See Tires on page 5-57. If tire rotation is recommended for your vehicle, rotate tires. See Tire Inspection and Rotation on page 5-73 and “Tire Wear Inspection” in At Least Once a Month on page 6-10. When the CHANGE ENGINE OIL SOON message in the Driver Information Center (DIC) comes on, it means that service is required for your vehicle. Have your vehicle serviced as soon as possible within the next 600 miles (1 000 km). It is possible that, if you are driving under the best conditions, the engine oil life system may not indicate that vehicle service is necessary for over a year. However, the engine oil and ﬁlter must be changed at least once a year and at this time the system must be reset. Your dealer/retailer has trained service technicians who will perform this work using genuine parts and reset the system. 6-4 If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5 000 km) since your last service. Remember to reset the oil life system whenever the oil is changed. See Engine Oil Life System on page 5-21 for information on the Engine Oil Life System and resetting the system. When the CHANGE ENGINE OIL SOON message appears, the following services, checks, and inspections are required: ❑ Change engine oil and ﬁlter. See Engine Oil on page 5-18. Reset oil life system. See Engine Oil Life System on page 5-21. An Emission Control Service. ❑ Visually check for any leaks or damage. See footnote (k). Inspect engine air cleaner ﬁlter. If necessary, replace ﬁlter. See Engine Air Cleaner/Filter on page 5-23. See footnote (m). ❑ Check tires for inﬂation pressures and wear. See Tires on page 5-57. If tire rotation is recommended for your vehicle, rotate tires. See Tire Inspection and Rotation on page 5-73 and “Tire Wear Inspection” in At Least Once a Month on page 6-10. Inspect brake system. See footnote (a). ❑ Check engine coolant and windshield washer ﬂuid levels. If you have the 4.4L V8 supercharged engine, check intercooler ﬂuid level. 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). 6-5 ❑ ❑ ❑ ❑ ❑ ❑ ❑ Additional Required Services The following services should be performed at the ﬁrst maintenance service 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 5-23. Replace passenger compartment air ﬁlter. See footnote (g). Change automatic transmission ﬂuid and ﬁlter (severe service). See footnote (h). Change automatic transmission ﬂuid and ﬁlter (normal service). 6-6 Additional Required Services (cont’d) Service and Miles (Kilometers) 25,000 (40 000) 50,000 (80 000) 75,000 (120 000) 100,000 (160 000) 125,000 (200 000) 150,000 (240 000) • • • For all-wheel-drive vehicles used for trailer towing: Change transfer case ﬂuid. Replace spark plugs. An Emission Control Service. Engine cooling system service (or every ﬁve years, whichever occurs ﬁrst). An Emission Control Service. See footnote (j). 4.4L Supercharged Engine: Intercooler system service (or every ﬁve years, whichever occurs ﬁrst). See footnote (l). Inspect engine accessory drive belt. An Emission Control Service. See footnote (n). If using DOT-4 brake ﬂuid, change brake ﬂuid at a regular maintenance service every two years. See footnote (i). • • • • 6-7 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 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) Inspect wiper blades for wear, cracking, or contamination. Clean the windshield and wiper blades, if contaminated. Replace wiper blades that are worn or damaged. See Windshield Wiper Blade Replacement on page 5-55 and Windshield and Wiper Blades on page 5-112 for more information. (e) Make sure the safety belt reminder light and safety belt assemblies are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that might keep a safety belt system from doing its job, have it repaired. Have any torn or frayed safety belts replaced. Also see Checking the Restraint Systems on page 1-66. (f) Lubricate all key lock cylinders. Lubricate all hinges and latches, including those for the hood, rear compartment, glove box door, and console door. 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) If you drive regularly under dusty conditions, the ﬁlter may require replacement more often. (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 limousine service. − Uses such as high performance operation. 6-8 (i) If using DOT-4 brake ﬂuid only: Drain, ﬂush, and reﬁll brake hydraulic system at a regular maintenance service every two years. This service can be complex; you should have your dealer/retailer perform this service. See Brakes on page 5-41. (j) Drain, ﬂush, and reﬁll cooling system. This service can be complex; you should have your dealer/retailer perform this service. See Engine Coolant on page 5-25 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and ﬁller neck. Pressure test the cooling system and pressure cap. (k) 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. (l) Drain, ﬂush, and reﬁll intercooler system. This service can be complex; you should have your dealer/retailer perform this service. See Engine Coolant on page 5-25. (m) If you drive regularly under dusty conditions, inspect the ﬁlter at each engine oil change. (n) 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 dealer/retailer can assist you with these checks and services. Be sure any necessary repairs are completed at once. Whenever any ﬂuids or lubricants are added to your vehicle, make sure they are the proper ones, as shown in Recommended Fluids and Lubricants on page 6-13. At Each Fuel Fill It is important to perform these underhood checks at each fuel ﬁll. Engine Oil Level Check Notice: regularly and keep it at the proper level. Failure to keep the engine oil at the proper level can cause damage to the engine not covered by your warranty. Check the engine oil level and add the proper oil if necessary. See Engine Oil on page 5-18. It is important to check the engine oil 6-9 Engine Coolant Level Check Check the engine coolant level and add DEX-COOL® coolant mixture if necessary. See Engine Coolant on page 5-25. Intercooler Coolant Level Check (4.4L Supercharged Engine) Check the coolant level and add DEX-COOL® coolant mixture if necessary. See Engine Coolant on page 5-25. Windshield Washer Fluid Level Check Check the windshield washer ﬂuid level in the windshield washer ﬂuid reservoir and add the proper ﬂuid if necessary. See Windshield Washer Fluid on page 5-40. At Least Once a Month Tire Inﬂation Check Inspect your vehicle’s tires and make sure they are inﬂated to the correct pressures. Do not forget to check the spare tire. See Inﬂation - Tire Pressure on page 5-66. Check to make sure the spare tire is stored securely. See Changing a Flat Tire on page 5-96. Tire Wear Inspection Tire rotation is recommended if your vehicle has the same size tires at all four wheel positions and may be required for high mileage highway drivers prior to the Engine Oil Life System service notiﬁcation. Check the tires for wear and, if necessary, rotate the tires. See Tire Inspection and Rotation on page 5-73. 6-10 At Least Once a Year Starter Switch Check {CAUTION:

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2008 Cadillac STS Owners Manual