2004 Cadillac Escalade Owners Manual

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the ground. (A) Body-to-Ground Distance (B) Front of Vehicle When using a weight-distributing hitch, the hitch must be adjusted so that the distance (A) remains the same both before and after coupling the trailer to the tow vehicle. 4-58 Trailer Brakes If your trailer weighs more than 2,000 lbs (900 kg) loaded, then it needs its own brakes — and they must be adequate. Be sure to read and follow the instructions for the trailer brakes so you’ll be able to install, adjust and maintain them properly. Since your vehicle is equipped with Stabilitrak®, your trailer brake system cannot tap into the vehicle’s hydraulic brake system. Driving with a Trailer {CAUTION: If you have a rear-most window open and you pull a trailer with your vehicle, carbon monoxide (CO) could come into your vehicle. You can not see or smell CO. It can cause CAUTION: (Continued) CAUTION: (Continued) unconsciousness or death. See Engine Exhaust on page 2-29. To maximize your safety when towing a trailer: (cid:127) Have your exhaust system inspected for leaks, and make necessary repairs before starting on your trip. (cid:127) Keep the rear-most windows closed. If exhaust does come into your vehicle through a window in the rear or another opening, drive with your front, main heating or cooling system on and with the fan on any speed. This will bring fresh, outside air into your vehicle. Do not use the climate control setting for maximum air because it only recirculates the air inside your vehicle. See Automatic Climate Control System on page 3-22. Towing a trailer requires a certain amount of experience. Before setting out for the open road, you’ll want to get to know your rig. Acquaint yourself with the feel of handling and braking with the added weight of the trailer. And always keep in mind that the vehicle you are driving is now a good deal longer and not nearly as responsive as your vehicle is by itself. 4-59 (cid:127) Before you start, check all trailer hitch parts and attachments, safety chains, electrical connector, lamps, tires and mirror adjustment. If the trailer has electric brakes, start your vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakes are working. This lets you check your electrical connection at the same time. During your trip, check occasionally to be sure that the load is secure, and that the lamps and any trailer brakes are still working. Following Distance Stay at least twice as far behind the vehicle ahead as you would when driving your vehicle without a trailer. This can help you avoid situations that require heavy braking and sudden turns. Passing You’ll need more passing distance up ahead when you’re towing a trailer. And, because you’re a good deal longer, you’ll need to go much farther beyond the passed vehicle before you can return to your lane. Backing Up Hold the bottom of the steering wheel with one hand. Then, to move the trailer to the left, just move that hand to the left. To move the trailer to the right, move your hand to the right. Always back up slowly and, if possible, have someone guide you. 4-60 Making Turns Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. Your vehicle could be damaged. Avoid making very sharp turns while trailering. When you’re turning with a trailer, make wider turns than normal. Do this so your trailer won’t strike soft shoulders, curbs, road signs, trees or other objects. Avoid jerky or sudden maneuvers. Signal well in advance. Turn Signals When Towing a Trailer The arrows on your instrument panel will ﬂash whenever you signal a turn or lane change. Properly hooked up, the trailer lamps will also ﬂash, telling other drivers you’re about to turn, change lanes or stop. When towing a trailer, the arrows on your instrument panel will ﬂash for turns even if the bulbs on the trailer are burned out. Thus, you may think drivers behind you are seeing your signal when they are not. It’s important to check occasionally to be sure the trailer bulbs are still working. Driving On Grades Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don’t shift down, you might have to use your brakes so much that they would get hot and no longer work well. You can tow in DRIVE (D). You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shifts too often (e.g., under heavy loads and/or hilly conditions). You may also want to activate the tow/haul mode if the transmission shifts too often. See “Tow/Haul Mode” earlier. When towing at high altitude on steep uphill grades, consider the following: Engine coolant will boil at a lower temperature than at normal altitudes. If you turn your engine off immediately after towing at high altitude on steep uphill grades, your vehicle may show signs similar to engine overheating. To avoid this, let the engine run while parked (preferably on level ground) with the automatic transmission in PARK (P) for a few minutes before turning the engine off. If you do get the overheat warning, see Engine Overheating on page 5-25. Parking on Hills {CAUTION: You really should not park your vehicle, with a trailer attached, on a hill. If something goes wrong, your rig could start to move. People can be injured, and both your vehicle and the trailer can be damaged. But if you ever have to park your rig on a hill, here’s how to do it: 1. Apply your regular brakes, but don’t shift into PARK (P) yet. 2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in place, release the regular brakes until the chocks absorb the load. 4. Reapply the regular brakes. Then apply your parking brake and shift into PARK (P). 5. Release the regular brakes. 4-61 When You Are Ready to Leave After Parking on a Hill 1. Apply your regular brakes and hold the pedal down while you: start your engine, shift into a gear, and release the parking brake. 2. Let up on the brake pedal. 3. Drive slowly until the trailer is clear of the chocks. 4. Stop and have someone pick up and store the chocks. Maintenance When Trailer Towing Your vehicle will need service more often when you’re pulling a trailer. See the Maintenance Schedule for more on this. Things that are especially important in trailer operation are automatic transmission ﬂuid (don’t overﬁll), engine oil, axle lubricant, belts, cooling system and brake system. Each of these is covered in this manual, and the Index will help you ﬁnd them quickly. If you’re trailering, it’s a good idea to review these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight. 4-62 Trailer Wiring Harness Heavy-Duty Trailer Wiring Package Your vehicle is equipped with the seven-wire trailer towing harness. This harness with a seven-pin universal heavy-duty trailer connector is attached to a bracket on the hitch platform. The Center High-Mounted Stoplamp (CHMSL) wire is tied next to the trailer wiring harness for use with a trailer. (cid:127) (cid:127) (cid:127) The seven-wire harness contains the following trailer circuits: (cid:127) Yellow: Left Stop/Turn Signal (cid:127) Dark Green: Right Stop/Turn Signal (cid:127) Brown: Taillamps (cid:127) White: Ground Light Green: Back-up Lamps (cid:127) Red: Battery Feed (cid:127) Dark Blue: Trailer Brake A jumper harness for an electric trailer brake controller and a trailer battery feed fuse may be included with this trailering package. See “Instrument Panel Jumper Wiring Harness” later in this section. If you need to tow a light-duty trailer with a standard four-way, round pin connector, an adapter may be included. See “Four-Wire Harness Adapter” later in this section. Instrument Panel Jumper Wiring Harness This harness may be included with your vehicle as part of the heavy-duty trailer wiring package. This harness is for an electric brake controller and includes a trailer battery feed fuse. It should be installed by your dealer or a qualiﬁed service center. 4-63 (cid:127) Four-Wire Harness Adapter This adapter may be included with your vehicle as part of the heavy-duty trailer wiring package. Use this adapter to connect a standard four-way round pin connector to the seven-wire harness on your vehicle. Connect the adapter with the tab pointing up (see arrow). The ﬂip cap on the vehicle’s seven-wire harness will lock onto the tab and help hold the adapter in place. Plug the four-way round pin connector onto the adapter. 4-64 Section 5 Service and Appearance Care Service ............................................................5-3 Doing Your Own Service Work .........................5-3 Adding Equipment to the Outside of Your Vehicle ..............................................5-4 Fuel ................................................................5-4 Gasoline Octane ............................................5-4 Gasoline Speciﬁcations ....................................5-5 California Fuel ...............................................5-5 Additives .......................................................5-5 Fuels in Foreign Countries ...............................5-6 Filling Your Tank ............................................5-6 Filling a Portable Fuel Container .......................5-8 Checking Things Under the Hood .....................5-8 Hood Release ................................................5-9 Engine Compartment Overview .......................5-10 Engine Oil ...................................................5-11 Engine Air Cleaner/Filter ................................5-16 Automatic Transmission Fluid .........................5-18 Engine Coolant .............................................5-21 Coolant Surge Tank Pressure Cap ..................5-24 Engine Overheating .......................................5-25 Cooling System ............................................5-28 Engine Fan Noise .........................................5-34 Power Steering Fluid .....................................5-35 Windshield Washer Fluid ................................5-36 Brakes ........................................................5-37 Battery ........................................................5-40 Jump Starting ...............................................5-41 All-Wheel Drive ..............................................5-47 Rear Axle .......................................................5-47 Front Axle ......................................................5-48 Headlamp Aiming ...........................................5-49 Headlamp Horizontal Aiming ...........................5-51 Headlamp Vertical Aiming ..............................5-52 Bulb Replacement ..........................................5-53 High Intensity Discharge (HID) Lighting ............5-53 Halogen Bulbs ..............................................5-54 Headlamps ..................................................5-54 Front Turn Signal, Sidemarker and Daytime Running Lamps .............................5-58 Center High-Mounted Stoplamp (CHMSL) .........5-59 Taillamps .....................................................5-59 Replacement Bulbs .......................................5-60 Windshield Wiper Blade Replacement ..............5-61 Tires ..............................................................5-62 Inﬂation - Tire Pressure .................................5-70 Tire Pressure Monitor System .........................5-71 Tire Inspection and Rotation ...........................5-74 When It Is Time for New Tires .......................5-75 Buying New Tires .........................................5-76 5-1 Section 5 Service and Appearance Care Uniform Tire Quality Grading ..........................5-77 Wheel Alignment and Tire Balance ..................5-78 Wheel Replacement ......................................5-78 Tire Chains ..................................................5-80 If a Tire Goes Flat ........................................5-80 Changing a Flat Tire .....................................5-81 Spare Tire ...................................................5-99 Appearance Care ..........................................5-100 Cleaning the Inside of Your Vehicle ...............5-100 Care of Safety Belts ....................................5-102 Weatherstrips .............................................5-102 Cleaning the Outside of Your Vehicle .............5-103 Sheet Metal Damage ...................................5-105 Finish Damage ...........................................5-105 Underbody Maintenance ...............................5-106 Chemical Paint Spotting ...............................5-106 Vehicle Care/Appearance Materials ................5-107 Vehicle Identiﬁcation .....................................5-108 Vehicle Identiﬁcation Number (VIN) ................5-108 Service Parts Identiﬁcation Label ...................5-108 Electrical System ..........................................5-108 Add-On Electrical Equipment .........................5-108 Windshield Wiper Fuses ...............................5-109 Power Windows and Other Power Options ......5-109 Fuses and Circuit Breakers ..........................5-109 Capacities and Speciﬁcations ........................5-118 5-2 Service Your dealer knows your vehicle best and wants you to be happy with it. We hope you will go to your dealer for all your service needs. You will get genuine GM parts and GM-trained and supported service people. We hope you will want to keep your GM vehicle all GM. Genuine GM parts have one of these marks: Doing Your Own Service Work If you want to do some of your own service work, you will want to use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 7-11. Your vehicle has an air bag system. Before attempting to do your own service work, see Servicing Your Air Bag-Equipped Vehicle on page 1-86. You should keep a record with all parts receipts and list the mileage and the date of any service work you perform. See Maintenance Record on page 6-15. {CAUTION: You can be injured and your vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it. (cid:127) Be sure you have sufficient knowledge, experience, the proper replacement parts and tools before you attempt any vehicle maintenance task. CAUTION: (Continued) 5-3 Gasoline Octane If your vehicle has the 5.3L engine (VIN Code T), use regular unleaded gasoline with a posted octane of 87 or higher. If the octane is less than 87, you may get a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you might damage your engine. A little pinging noise when you accelerate or drive uphill is considered normal. This does not indicate a problem exists or that a higher-octane fuel is necessary. If you are using 87 octane or higher-octane fuel and you hear heavy knocking, your engine needs service. If your vehicle has the 6.0L HO engine (VIN Code N), use premium unleaded gasoline with a posted octane of 91 or higher for best performance. You may also use middle grade or regular unleaded gasoline rated at 87 octane or higher, but your vehicle’s acceleration may be slightly reduced. If the octane is less than 87, you may get a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you might damage your engine. CAUTION: (Continued) (cid:127) Be sure to use the proper nuts, bolts and other fasteners. “English” and “metric” fasteners can be easily confused. If you use the wrong fasteners, parts can later break or fall off. You could be hurt. Adding Equipment to the Outside of Your Vehicle Things you might add to the outside of your vehicle can affect the airﬂow around it. This may cause wind noise and affect windshield washer performance. Check with your dealer before adding equipment to the outside of your vehicle. Fuel The 8th digit of your vehicle identiﬁcation number (VIN) shows the code letter or number that identiﬁes your engine. You will ﬁnd the VIN at the top left of the instrument panel. See Vehicle Identiﬁcation Number (VIN) on page 5-108. 5-4 Gasoline Speciﬁcations It is recommended that gasoline meet speciﬁcations which were developed by automobile manufacturers around the world and contained in the World-Wide Fuel Charter which is available from the Alliance of Automobile Manufacturers at www.autoalliance.org. Gasoline meeting these speciﬁcations could provide improved driveability and emission control system performance compared to other gasoline. In Canada, look for the “Auto Makers’ Choice” label on the pump. Canada Only California Fuel If your vehicle is certiﬁed to meet California Emission Standards (see the underhood emission control label), it is designed to operate on fuels that meet California speciﬁcations. If this fuel is not available in states adopting California emissions standards, your vehicle will operate satisfactorily on fuels meeting federal speciﬁcations, but emission control system performance may be affected. The malfunction indicator lamp may turn on (see Malfunction Indicator Lamp on page 3-41 ) and your vehicle may fail a smog-check test. If this occurs, return to your authorized GM dealer for diagnosis. If it is determined that the condition is caused by the type of fuel used, repairs may not be covered by your warranty. Additives To provide cleaner air, all gasolines in the United States are now required to contain additives that will help prevent engine and fuel system deposits from forming, allowing your emission control system to work properly. You should not have to add anything to your fuel. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. General Motors recommends that you buy gasolines that are advertised to help keep fuel injectors and intake valves clean. If your vehicle experiences problems due to dirty injectors or valves, try a different brand of gasoline. 5-5 Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines may be available in your area to contribute to clean air. General Motors recommends that you use these gasolines, particularly if they comply with the speciﬁcations described earlier. Notice: Your vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in your fuel system and also damage the plastic and rubber parts. That damage would not be covered under your warranty. Some gasolines that are not reformulated for low emissions may contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you buy gasoline whether the fuel contains MMT. General Motors does not recommend the use of such gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the emission control system may be affected. The malfunction indicator lamp may turn on. If this occurs, return to your authorized GM dealer for service. Fuels in Foreign Countries If you plan on driving in another country outside the United States or Canada, the proper fuel may be hard to ﬁnd. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel. Costly repairs caused by use of improper fuel would not be covered by your warranty. To check the fuel availability, ask an auto club, or contact a major oil company that does business in the country where you will be driving. Filling Your Tank {CAUTION: Fuel vapor burns violently and a fuel ﬁre can cause bad injuries. To help avoid injuries to you and others, read and follow all the instructions on the pump island. Turn off your engine when you are refueling. Do not smoke if you are near fuel or refueling your vehicle. Keep sparks, ﬂames and smoking materials away from fuel. Do not leave the fuel pump CAUTION: (Continued) 5-6 CAUTION: (Continued) {CAUTION: unattended when refueling your vehicle — this is against the law in some places. Keep children away from the fuel pump; never let children pump fuel. The fuel cap is located behind a hinged door on the driver’s side of the vehicle. While refueling, hang the fuel cap by the tether using the hook located on the inside of the ﬁller door. To remove the fuel cap, turn it slowly to the left (counterclockwise). It will require more effort to turn the fuel cap on the last turn as you loosen it. If a ﬁre starts while you are refueling, do not remove the nozzle. Shut off the ﬂow of fuel by shutting off the pump or by notifying the station attendant. Leave the area immediately. Be careful not to spill fuel. Don’t top off or overﬁll your tank and wait a few seconds after you’ve ﬁnished pumping before you remove the nozzle. Clean any spilled fuel from painted surfaces as soon as possible. See Cleaning the Outside of Your Vehicle on page 5-103. When you put the fuel cap back on, turn it to the right (clockwise) until you hear a clicking sound. It will require more effort to turn the fuel cap on the last turn as you tighten it. Make sure you fully install the cap. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp on page 3-41. Notice: the right type. Your dealer can get one for you. If you get the wrong type, it may not ﬁt properly. This may cause your malfunction indicator lamp to light and may damage your fuel tank and emissions system. See Malfunction Indicator Lamp on page 3-41. If you need a new fuel cap, be sure to get 5-7 Checking Things Under the Hood {CAUTION: Things that burn can get on hot engine parts and start a ﬁre. These include liquids like fuel, oil, coolant, brake ﬂuid, windshield washer and other ﬂuids, and plastic or rubber. You or others could be burned. Be careful not to drop or spill things that will burn onto a hot engine. Filling a Portable Fuel Container {CAUTION: Never ﬁll a portable fuel container while it is in your vehicle. Static electricity discharge from the container can ignite the gasoline vapor. You can be badly burned and your vehicle damaged if this occurs. To help avoid injury to you and others: (cid:127) Dispense gasoline only into approved containers. (cid:127) Do not ﬁll a container while it is inside a vehicle, in a vehicle’s trunk, pickup bed or on any surface other than the ground. (cid:127) Bring the ﬁll nozzle in contact with the inside of the ﬁll opening before operating the nozzle. Contact should be maintained until the ﬁlling is complete. (cid:127) Do not smoke while pumping gasoline. 5-8 Hood Release To open the hood, do the following: 1. Pull the handle located inside the vehicle to the lower left of the steering wheel. 2. Then go to the front of the vehicle and pull up on the secondary hood release, located near the center of the grill. 3. Lift the hood. 5-9 Engine Compartment Overview When you open the hood on the 6000 H.O. engine (5300 similar), you will see: 5-10 A. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter on page 5-16. B. Coolant Surge Tank. See Cooling System on page 5-28 and Coolant Surge Tank Pressure Cap on page 5-24. C. Air Filter Restriction Indicator (If Equipped). See Engine Air Cleaner/Filter on page 5-16. D. Engine Oil Fill. See Engine Oil on page 5-11. E. Engine Oil Dipstick. See Engine Oil on page 5-11. F. Automatic Transmission Dipstick. See Automatic Transmission Fluid on page 5-18. G. Fan. See Cooling System on page 5-28 and Engine Fan Noise on page 5-34. H. Remote Negative (−) Terminal (GND). See Jump Starting on page 5-41. I. Remote Positive (+) Terminal. See Jump Starting on page 5-41. J. Power Steering Fluid Reservoir (Out of View). See Power Steering Fluid on page 5-35. K. Brake Fluid Reservoir. See Brakes on page 5-37. L. Underhood Fuse Block. See “Underhood Fuse Block” under Fuses and Circuit Breakers on page 5-109. M. Battery. See Battery on page 5-40. N. Windshield Washer Fluid Reservoir. See Windshield Washer Fluid on page 5-36. Engine Oil If the CHECK OIL LEVEL message appears on the instrument cluster, it means you need to check your engine oil level right away. For more information, see “CHECK OIL LEVEL” under DIC Warnings and Messages on page 3-57. You should check your engine oil level regularly; this is an added reminder. Checking Engine Oil It is a good idea to check your engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 5-10 for the location of the engine oil dipstick. Turn off the engine and give the oil several minutes to drain back into the oil pan. If you don’t, the oil dipstick might not show the actual level. Pull out the dipstick and clean it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level. 5-11 See Engine Compartment Overview on page 5-10 for the location of the engine oil ﬁll cap. When to Add Engine Oil If the oil is at or below the cross-hatched area at the tip of the dipstick, then you will need to add at least one quart of oil. But you must use the right kind. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Speciﬁcations on page 5-118. Notice: Do not add too much oil. If your engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, your engine could be damaged. Be sure to add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you are through. What Kind of Engine Oil to Use Look for two things: (cid:127) GM6094M Your vehicle’s engine requires oil meeting GM Standard GM6094M. You should look for and use only an oil that meets GM Standard GM6094M. 5-12 (cid:127) SAE 5W-30 As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. However, if it is going to be 0°F (–18°C) or above and SAE 5W-30 is not available, you may use SAE 10W-30. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50. Oils meeting these requirements should also have the starburst symbol on the container. This symbol indicates that the oil has been certiﬁed by the American Petroleum Institute (API). You should look for this information on the oil container, and use only those oils that are identiﬁed as meeting GM Standard GM6094M and have the starburst symbol on the front of the oil container. 5-13 Notice: Use only engine oil identiﬁed as meeting GM Standard GM6094M and showing the American Petroleum Institute Certiﬁed For Gasoline Engines starburst symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty. GM Goodwrench® oil meets all the requirements for your vehicle. If you are in an area of extreme cold, where the temperature falls below −20°F (−29°C), it is recommended that you use either an SAE 5W-30 synthetic oil or an SAE 0W-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. Engine Oil Additives Do not add anything to your oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you will need for good performance and engine protection. When to Change Engine Oil (GM Oil Life System) Your vehicle has a computer system that lets you know when to change the engine oil and ﬁlter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving conditions, the mileage at which an oil change will be indicated can vary considerably. For the oil life system to work properly, you must reset the system every time the oil is changed. When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL message will come on. Change your oil as soon as possible within the next two times you stop for fuel. It is possible that, if you are driving under the best conditions, the oil life system may not indicate that an oil change 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 dealer has GM-trained service people who will perform this work using genuine GM parts and reset the system. It is also important to check your oil regularly and keep it at the proper level. If the system is ever reset accidentally, you must change your oil at 3,000 miles (5 000 km) since your last oil change. Remember to reset the oil life system whenever the oil is changed. 5-14 How to Reset the CHANGE ENGINE OIL Message The GM Oil Life System calculates when to change your engine oil and ﬁlter based on vehicle use. Anytime your oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where you change your oil prior to a CHANGE ENGINE OIL message being turned on, reset the system. To reset the CHANGE ENGINE OIL message, see “GM Oil Life System” under DIC Operation and Displays on page 3-47 for vehicles equipped with the DIC, or do the following: 1. Turn the ignition key to RUN with the engine off. 2. Fully press and release the accelerator pedal slowly three times within ﬁve seconds. If the OIL LIFE RESET message ﬂashes for 10 seconds, the system is resetting. 3. Turn the key to LOCK. If the CHANGE ENGINE OIL message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure. If it still does not reset, see your dealer for service. What to Do with Used Oil Used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer’s warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the ﬁlter before disposal. Never dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help. 5-15 How to Inspect Vehicles with an Air Filter Restriction Indicator Locate the air ﬁlter restriction indicator on the engine air cleaner/ﬁlter cover. When the indicator turns black or is in the red/orange “change” zone, replace the ﬁlter and reset the indicator. See the steps following to replace the engine air cleaner/ﬁlter and to reset the air ﬁlter restriction indicator. Vehicles without an Air Filter Restriction Indicator To inspect the air cleaner/ﬁlter, remove the engine air cleaner/ﬁlter from the vehicle using the steps following. When you have the engine air cleaner/ﬁlter removed, lightly shake it to release loose dust and dirt. If the engine air cleaner/ﬁlter remains caked with dirt, a new one is required. Engine Air Cleaner/Filter See Engine Compartment Overview on page 5-10 for location of engine air cleaner/ﬁlter and air ﬁlter restriction indicator (if equipped). When to Inspect If your vehicle is equipped with an air ﬁlter restriction indicator, it lets you know when the engine air cleaner/ﬁlter needs to be replaced. On vehicles with a restriction indicator, you should inspect the air ﬁlter restriction indicator at every oil change and replace the engine air cleaner/ﬁlter when the indicator tells you to. On vehicles without an air ﬁlter restriction indicator, you should inspect the air cleaner/ﬁlter at every oil change and replace it at the ﬁrst oil change after 25,000 miles (40 000 km). See Scheduled Maintenance on page 6-4 for more information. 5-16 Replacing the Engine Air Cleaner/Filter and Resetting the Air Filter Restriction Indicator 1. Locate the air cleaner/ﬁlter assembly on the front corner of the engine compartment on the passenger’s side of the vehicle. 2. Loosen the screws on the cover of the housing and lift up the cover. 3. Remove the engine air cleaner/ﬁlter from the housing. Care should be taken to dislodge as little dirt as possible. 4. Clean the engine air cleaner/ﬁlter sealing surfaces and the housing. 5-17 5. Install the new engine air cleaner/ﬁlter. 6. Reinstall the cover and tighten the screws. 7. Reset the air ﬁlter restriction indicator, if equipped, by pressing the top button on the indicator. {CAUTION: Operating the engine with the air cleaner/ﬁlter off can cause you or others to be burned. The air cleaner not only cleans the air, it helps to stop ﬂame if the engine backﬁres. If it is not there and the engine backﬁres, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/ﬁlter off. Automatic Transmission Fluid When to Check and Change A good time to check your automatic transmission ﬂuid level is when the engine oil is changed. Change both the ﬂuid and ﬁlter every 50,000 miles (83 000 km) 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. (cid:127) When doing frequent trailer towing. (cid:127) Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the ﬂuid and ﬁlter every 100,000 miles (166 000 km). See Scheduled Maintenance on page 6-4. 5-18 (cid:127) (cid:127) How to Check Because this operation can be a little difficult, you may choose to have this done at the dealership service department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading on the dipstick. Notice: Too much or too little ﬂuid can damage your transmission. Too much can mean that some of the ﬂuid could come out and fall on hot engine part or exhaust system parts, starting a ﬁre. Too little ﬂuid could cause the transmission to overheat. Be sure to get an accurate reading if you check your transmission ﬂuid. Wait at least 30 minutes before checking the transmission ﬂuid level if you have been driving: (cid:127) When outside temperatures are above 90°F (32°C). (cid:127) At high speed for quite a while. In heavy traffic – especially in hot weather. (cid:127) While pulling a trailer. To get the right reading, the ﬂuid should be at normal operating temperature, which is 180°F to 200°F (82°C to 93°C). Get the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 50°F (10°C). If it’s colder than 50°F (10°C), drive the vehicle in THIRD (3) until the engine temperature gage moves and then remains steady for 10 minutes. A cold ﬂuid check can be made after the vehicle has been sitting for eight hours or more with the engine off, but this is used only as a reference. Let the engine run at idle for ﬁve minutes if outside temperatures are 50°F (10°C) or more. If it’s colder than 50°F (10°C), you may have to idle the engine longer. Should the ﬂuid level be low during this cold check, you must check the ﬂuid hot before adding ﬂuid. Checking the ﬂuid hot will give you a more accurate reading of the ﬂuid level. Checking the Fluid Level Prepare your vehicle as follows: (cid:127) Park your vehicle on a level place. Keep the engine running. (cid:127) With the parking brake applied, place the shift lever in PARK (P). (cid:127) With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in PARK (P). Let the engine run at idle for three minutes or more. 5-19 (cid:127) (cid:127) Then, without shutting off the engine, follow these steps: The transmission dipstick handle with the graphic is located at the rear of the engine compartment, on the passenger’s side. See Engine Compartment Overview on page 5-10 for more information on location. 1. Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper towel. 2. Push it back in all the way, wait three seconds and then pull it back out again. 5-20 3. Check both sides of the dipstick, and read the lower level. The ﬂuid level must be in the COLD area, below the cross-hatched area, for a cold check or in the HOT area or cross-hatched area for a hot check. Be sure to keep the dipstick pointed down to get an accurate reading. 4. If the ﬂuid level is in the acceptable range, push the dipstick back in all the way; then ﬂip the handle down to lock the dipstick in place. How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transmission ﬂuid to use. See Recommended Fluids and Lubricants on page 6-12. Add ﬂuid only after checking the transmission ﬂuid while it is hot. (A cold check is used only as a reference.) If the ﬂuid level is low, add only enough of the proper ﬂuid to bring the level up to the HOT area for a hot check. It doesn’t take much ﬂuid, generally less than one pint (0.5 L). Don’t overﬁll. Notice: We recommend you use only ﬂuid labeled DEXRON® -III, because ﬂuid with that label is made especially for your automatic transmission. Damage caused by ﬂuid other than DEXRON® -III is not covered by your new vehicle warranty. (cid:127) After adding ﬂuid, recheck the ﬂuid level as described under How to Check. (cid:127) When the correct ﬂuid level is obtained, push the dipstick back in all the way; then ﬂip the handle down to lock the dipstick in place. Engine Coolant The cooling system in your vehicle is ﬁlled with DEX-COOL® engine coolant. This coolant is designed to remain in your vehicle for 5 years or 150,000 miles (240 000 km), whichever occurs ﬁrst, if you add only DEX-COOL® extended life coolant. The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see Engine Overheating on page 5-25. A 50/50 mixture of clean, drinkable water and DEX-COOL® coolant will: (cid:127) Give freezing protection down to −34°F (−37°C). (cid:127) Give boiling protection up to 265°F (129°C). (cid:127) Protect against rust and corrosion. (cid:127) Help keep the proper engine temperature. Let the warning lights and gages work as they should. Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core or radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs ﬁrst. Any repairs would not be covered by your warranty. Always use DEX-COOL®(silicate-free) coolant in your vehicle. 5-21 (cid:127) If you use an improper coolant mixture, Notice: your engine could overheat and be badly damaged. The repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core and other parts. If you have to add coolant more than four times a year, have your dealer check your cooling system. Notice: have to add extra inhibitors or additives which claim to improve the system. These can be harmful. If you use the proper coolant, you do not What to Use Use a mixture of one-half clean, drinkable water and one-half DEX-COOL® coolant which won’t damage aluminum parts. If you use this coolant mixture, you don’t need to add anything else. {CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you would not get the overheat warning. Your engine could catch ﬁre and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant. 5-22 Checking Coolant The coolant surge tank is located in the engine compartment on the passenger’s side of the vehicle. See Engine Compartment Overview on page 5-10 for more information on location. {CAUTION: Turning the surge tank pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. Never turn the surge tank pressure cap — even a little — when the engine and radiator are hot. The vehicle must be on a level surface. When your engine is cold, the coolant level should be at the FULL COLD mark. If your vehicle is equipped with the LOW COOLANT LEVEL message and it comes on and stays on, it means you’re low on engine coolant. See “Low Coolant Level” under DIC Warnings and Messages on page 3-57. 5-23 Adding Coolant If you need more coolant, add the proper DEX-COOL® coolant mixture at the surge tank, but only when the engine is cool. {CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. When replacing the pressure cap, make sure it is hand-tight. 5-24 Coolant Surge Tank Pressure Cap The coolant surge tank pressure cap must be fully installed on the coolant surge tank. Notice: coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured. If the pressure cap is not tightly installed, Notice: After driving in the overheated engine protection operating mode, to avoid engine damage, allow the engine to cool before attempting any repair. The engine oil will be severely degraded. Repair the cause of coolant loss and change the oil. See Engine Oil on page 5-11. Engine Overheating You will ﬁnd a coolant temperature gage on your vehicle’s instrument panel cluster. See Engine Coolant Temperature Gage on page 3-40. In addition, you will ﬁnd an ENGINE COOLANT HOT, ENGINE OVERHEATED and a REDUCED ENGINE POWER message in the DIC on the instrument panel. See Driver Information Center (DIC) on page 3-46. Overheated Engine Protection Operating Mode If an overheated engine condition exists and the REDUCED ENGINE POWER message is displayed, an overheat protection mode which alternates ﬁring groups of cylinders helps prevent engine damage. In this mode, you will notice a loss in power and engine performance. This operating mode allows your vehicle to be driven to a safe place in an emergency. Driving extended miles (km) and/or towing a trailer in the overheat protection mode should be avoided. 5-25 If Steam Is Coming From Your Engine CAUTION: (Continued) everyone away from the vehicle until it cools down. Wait until there is no sign of steam or coolant before you open the hood. If you keep driving when your engine is overheated, the liquids in it can catch ﬁre. You or others could be badly burned. Stop your engine if it overheats, and get out of the vehicle until the engine is cool. See “Overheated Engine Protection Operating Mode” under Engine Overheating on page 5-25 for information on driving to a safe place in an emergency. {CAUTION: Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get CAUTION: (Continued) If your engine catches ﬁre because you Notice: keep driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. See “Overheated Engine Protection Operating Mode” under Engine Overheating on page 5-25 for information on driving to a safe place in an emergency. 5-26 If No Steam Is Coming From Your Engine An overheat warning, along with a low coolant condition, can indicate a serious problem. If you get an engine overheat, but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: (cid:127) Climb a long hill on a hot day. (cid:127) Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer. See “Driving on Grades” under Towing a Trailer on page 4-53. If you get the overheat warning with no sign of steam, try this for a minute or so: 1. Turn on your heater to full hot at the highest fan speed and open the window as necessary. 2. If you’re in a traffic jam, shift to NEUTRAL (N); otherwise, shift to the highest gear while driving – DRIVE (D). If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about 10 minutes. If the warning doesn’t come back on, you can drive normally. If the warning continues, pull over, stop, and park your vehicle right away. If there’s still no sign of steam, push down the accelerator until the engine speed is about twice as fast as normal idle speed for at least three minutes while you’re parked. If you still have the warning, turn off the engine and get everyone out of the vehicle until it cools down. Also, see “Overheated Engine Protection Operating Mode” listed previously in this section. You may decide not to lift the hood but to get service help right away. 5-27 (cid:127) (cid:127) Cooling System When you decide it’s safe to lift the hood, here’s what you’ll see: If the coolant inside the coolant surge tank is boiling, don’t do anything else until it cools down. The vehicle should be parked on a level surface. The coolant level should be at or above the FULL COLD mark. If it isn’t, you may have a leak at the pressure cap or in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. A. Coolant Surge Tank B. Coolant Surge Tank Pressure Cap C. Engine Fan 5-28 Notice: Engine damage from running your engine without coolant is not covered by your warranty. See “Overheated Engine Protection Operating Mode” in the Index for information on driving to a safe place in an emergency. Notice: Using coolant other than DEX-COOL® may cause premature engine, heater core or radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs ﬁrst. Any repairs would not be covered by your warranty. Always use DEX-COOL®(silicate-free) coolant in your vehicle. {CAUTION: Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine ﬁre, and you could be burned. Get any leak ﬁxed before you drive the vehicle. If there seems to be no leak, start the engine again. The engine cooling fan speed should increase when idle speed is doubled by pushing the accelerator pedal down. If it doesn’t, your vehicle needs service. Turn off the engine. 5-29 CAUTION: (Continued) out at high speed. Never turn the cap when the cooling system, including the radiator pressure cap, is hot. Wait for the cooling system and radiator pressure cap to cool if you ever have to turn the pressure cap. How to Add Coolant to the Coolant Surge Tank If you haven’t found a problem yet, check to see if coolant is visible in the surge tank. If coolant is visible but the coolant level isn’t at or above the FULL COLD mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool before you do it. See Engine Coolant on page 5-21 for more information. If no coolant is visible in the surge tank, add coolant as follows: {CAUTION: Steam and scalding liquids from a hot cooling system can blow out and burn you badly. They are under pressure, and if you turn the radiator pressure cap — even a little — they can come CAUTION: (Continued) 5-30 {CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you would not get the overheat warning. Your engine could catch ﬁre and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL® coolant. In cold weather, water can freeze and crack Notice: the engine, radiator, heater core and other parts. Use the recommended coolant and the proper coolant mixture. {CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. 5-31 1. Park the vehicle on a level surface. You can remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise (left) about one full turn. If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left. 2. Then keep turning the pressure cap slowly, and remove it. 5-32 3. Then ﬁll the coolant surge tank with the proper mixture, to the FULL COLD mark. 4. With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the FULL COLD mark. 5-33 Engine Fan Noise Your vehicle has a clutched engine cooling fan. When the clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the fan is spinning slower and the clutch is not fully engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer towing and/or high outside temperatures, the fan speed increases as the clutch more fully engages. So you may hear an increase in fan noise. This is normal and should not be mistaken as the transmission slipping or making extra shifts. It is merely the cooling system functioning properly. The fan will slow down when additional cooling is not required and the clutch disengages. You may also hear this fan noise when you start the engine. It will go away as the fan clutch partially disengages. 5. Then replace the pressure cap. Be sure the pressure cap is hand-tight and fully seated. 5-34 Power Steering Fluid How to Check Power Steering Fluid Turn the key off, let the engine compartment cool down, Locate the cap with this symbol. See Engine Compartment Overview on page 5-10 for more information on location. When to Check Power Steering Fluid It is not necessary to regularly check power steering ﬂuid unless you suspect there is a leak in the system or you hear an unusual noise. A ﬂuid loss in this system could indicate a problem. Have the system inspected and repaired. See Engine Compartment Overview on page 5-10 for reservoir location. Wipe the cap and the top of the reservoir clean, then unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the ﬂuid level on the dipstick. The level should be at the FULL COLD mark. If necessary, add only enough ﬂuid to bring the level up to the mark. 5-35 What to Use To determine what kind of ﬂuid to use, see Recommended Fluids and Lubricants on page 6-12. Always use the proper ﬂuid. Failure to use the proper ﬂuid can cause leaks and damage hoses and seals. Windshield Washer Fluid What to Use When you need windshield washer ﬂuid, be sure to read the manufacturer’s instructions before use. If you will be operating your vehicle in an area where the temperature may fall below freezing, use a ﬂuid that has sufficient protection against freezing. See Engine Compartment Overview on page 5-10 for reservoir location. Adding Washer Fluid Your vehicle has a low washer ﬂuid message that comes on when the washer ﬂuid is low. The message is displayed for 15 seconds at the start of each ignition cycle. When the LOW WASHER FLUID message is displayed, you will need to add washer ﬂuid to the windshield washer ﬂuid reservoir. 5-36 The windshield washer ﬂuid reservoir is located in the engine compartment toward the front of the vehicle on the driver’s side. Open the cap with the washer symbol on it. Add washer ﬂuid until the tank is full. Notice: (cid:127) When using concentrated washer ﬂuid, follow the manufacturer’s instructions for adding water. (cid:127) Do not mix water with ready-to-use washer ﬂuid. Water can cause the solution to freeze and damage your washer ﬂuid tank and other parts of the washer system. Also, water does not clean as well as washer ﬂuid. Fill your washer ﬂuid tank only three-quarters full when it is very cold. This allows for expansion if freezing occurs, which could damage the tank if it is completely full. (cid:127) Do not use engine coolant (antifreeze) in your windshield washer. It can damage your washer system and paint. (cid:127) Brakes Brake Fluid Your brake master cylinder reservoir is ﬁlled with DOT-3 brake ﬂuid. See Engine Compartment Overview on page 5-10 for the location of the reservoir. There are only two reasons why the brake ﬂuid level in the reservoir might go down. The ﬁrst is that the brake ﬂuid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the ﬂuid level goes back up. The other reason is that ﬂuid is leaking out of the brake system. If it is, you should have your brake system ﬁxed, since a leak means that sooner or later your brakes will not work well, or will not work at all. So, it is not a good idea to “top off” your brake ﬂuid. Adding brake ﬂuid will not correct a leak. If you add ﬂuid when your linings are worn, then you will have too much ﬂuid when you get new brake linings. You should add (or remove) brake ﬂuid, as necessary, only when work is done on the brake hydraulic system. {CAUTION: If you have too much brake ﬂuid, it can spill on the engine. The ﬂuid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake ﬂuid only when work is done on the brake hydraulic system. See “Checking Brake Fluid” in this section. Refer to the Maintenance Schedule to determine when to check your brake ﬂuid. See Scheduled Maintenance on page 6-4. 5-37 What to Add When you do need brake ﬂuid, use only DOT-3 brake ﬂuid. Use new brake ﬂuid from a sealed container only. See Recommended Fluids and Lubricants on page 6-12. Always clean the brake ﬂuid reservoir cap and the area around the cap before removing it. This will help keep dirt from entering the reservoir. {CAUTION: With the wrong kind of ﬂuid in your brake system, your brakes may not work well, or they may not even work at all. This could cause a crash. Always use the proper brake ﬂuid. Checking Brake Fluid You can check the brake ﬂuid without taking off the cap. Just look at the brake ﬂuid reservoir. The ﬂuid level should be above MIN. If it is not, have your brake system checked to see if there is a leak. After work is done on the brake hydraulic system, make sure the level is above the MIN but not over the MAX mark. 5-38 Notice: (cid:127) Using the wrong ﬂuid can badly damage brake system parts. For example, just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake system parts so badly that they will have to be replaced. Do not let someone put in the wrong kind of ﬂuid. If you spill brake ﬂuid on your vehicle’s painted surfaces, the paint ﬁnish can be damaged. Be careful not to spill brake ﬂuid on your vehicle. If you do, wash it off immediately. See Appearance Care on page 5-100. Brake Wear Your vehicle has four-wheel disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound may come and go or be heard all the time your vehicle is moving (except when you are pushing on the brake pedal ﬁrmly). {CAUTION: The brake wear warning sound means that soon your brakes will not work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced. Notice: Continuing to drive with worn-out brake pads could result in costly brake repair. Some driving conditions or climates may cause a brake squeal when the brakes are ﬁrst applied or lightly applied. This does not mean something is wrong with your brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to GM torque speciﬁcations. Brake linings should always be replaced as complete axle sets. 5-39 (cid:127) Battery Your new vehicle comes with a maintenance free ACDelco® battery. When it is time for a new battery, get one that has the replacement number shown on the original battery’s label. We recommend an ACDelco® battery. See Engine Compartment Overview on page 5-10 for battery location. Warning: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble. Brake Adjustment Every time you make a brake stop, your disc brakes adjust for wear. Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Your vehicle was designed and tested with top-quality GM brake parts. When you replace parts of your braking system — for example, when your brake linings wear down and you need new ones put in — be sure you get new approved GM replacement parts. If you do not, your brakes may no longer work properly. For example, if someone puts in brake linings that are wrong for your vehicle, the balance between your front and rear brakes can change — for the worse. The braking performance you have come to expect can change in many other ways if someone puts in the wrong replacement brake parts. 5-40 Vehicle Storage If you are not going to drive your vehicle for 25 days or more, remove the black, negative (−) cable from the battery. This will help keep your battery from running down. Jump Starting If your battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle. But please use the following steps to do it safely. {CAUTION: Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you are not careful. See Jump Starting on page 5-41 for tips on working around a battery without getting hurt. Contact your dealer to learn how to prepare your vehicle for longer storage periods. Also, for your audio system, see Theft-Deterrent Feature on page 3-95. {CAUTION: Batteries can hurt you. They can be dangerous because: (cid:127) They contain acid that can burn you. (cid:127) They contain gas that can explode or (cid:127) They contain enough electricity to ignite. burn you. If you do not follow these steps exactly, some or all of these things can hurt you. Ignoring these steps could result in costly Notice: damage to your vehicle that would not be covered by your warranty. Trying to start your vehicle by pushing or pulling it will not work, and it could damage your vehicle. 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. 5-41 4. Open the hoods and locate the positive (+) and negative (−) terminal locations of the other vehicle. Your vehicle has a remote positive (+) jump starting terminal and a remote negative (−) jump starting terminal. You should always use these remote terminals instead of the terminals on the battery. The remote positive (+) terminal is located near the engine accessory drive bracket. On some vehicles, the terminal may be covered under under a red plastic cover. To access the remote positive (+) terminal, open the red plastic cover. If the other vehicle’s system is not a 12-volt Notice: system with a negative ground, both vehicles can be damaged. Only use vehicles with 12-volt systems with negative grounds to jump start your vehicle. 2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles aren’t touching each other. If they are, it could cause a ground connection you don’t want. You wouldn’t be able to start your vehicle, and the bad grounding could damage the electrical systems. To avoid the possibility of the vehicles rolling, set the parking brake ﬁrmly on both vehicles involved in the jump start procedure. Put an automatic transmission in PARK (P) or a manual transmission in NEUTRAL before setting the parking brake. If you leave your radio or other accessories Notice: on during the jump starting procedure, they could be damaged. The repairs would not be covered by your warranty. Always turn off your radio and other accessories when jump starting your vehicle. 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or accessory power outlets. Turn off the radio and all lamps that aren’t needed. This will avoid sparks and help save both batteries. And it could save your radio! 5-42 The remote negative (−) terminal is located on the engine accessory drive bracket and is marked GND. See Engine Compartment Overview on page 5-10 for more information on location. {CAUTION: Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. Use a ﬂashlight if you need more light. CAUTION: (Continued) CAUTION: (Continued) Be sure the battery has enough water. You do not need to add water to the ACDelco® battery installed in your new vehicle. But if a battery has ﬁller caps, be sure the right amount of ﬂuid is there. If it is low, add water to take care of that ﬁrst. If you do not, explosive gas could be present. Battery ﬂuid contains acid that can burn you. Do not get it on you. If you accidentally get it in your eyes or on your skin, ﬂush the place with water and get medical help immediately. 5. Check that the jumper cables don’t have loose or missing insulation. If they do, you could get a shock. The vehicles could be damaged too. Before you connect the cables, here are some basic things you should know. Positive (+) will go to positive (+) or to a remote positive terminal (+) if the vehicle has one. Negative (−) will go to a heavy, unpainted metal engine part or to a remote negative (−) terminal, if the vehicle has one. Don’t connect positive (+) to negative (−) or you’ll get a short that would damage the battery and maybe other parts too. 5-43 7. Don’t let the other end touch metal. Connect it to the positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one. {CAUTION: Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running. 6. Connect the red positive (+) cable to the positive (+) terminal of the dead battery. Use a remote positive (+) terminal if the vehicle has one. 5-44 8. Now connect the black negative (−) cable to the negative (−) terminal of the good battery. Use a remote negative (−) terminal if the vehicle has one. Your vehicle’s remote negative (−) terminal is marked GND. Don’t let the other end touch anything until the next step. The other end of the negative (−) cable doesn’t go to the dead battery. It goes to a heavy, unpainted metal engine part or to a remote negative (−) terminal on the vehicle with the dead battery. 9. Connect the other end of the negative (−) cable at least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less. 10. Now start the vehicle with the good battery and run the engine for awhile. 11. Try to start the vehicle that had the dead battery. If it won’t start after a few tries, it probably needs service. If the jumper cables are removed in the Notice: wrong order, electrical shorting may occur and damage the vehicle. The repairs would not be covered by your warranty. Remove the jumper cables in the correct order, making sure that the cables do not touch each other or other metal. 5-45 To disconnect the jumper cables from both vehicles do the following: 1. Disconnect the black negative (−) cable from the vehicle that had the dead battery. 2. Disconnect the black negative (−) cable from the vehicle with the good battery. 3. Disconnect the red positive (+) cable from the vehicle with the good battery. 4. Disconnect the red positive (+) cable from the other vehicle. 5. Return the positive (+) remote terminal cover to its original position. Jumper Cable Removal A. Heavy, Unpainted Metal Engine Part or Remote Negative (−) Terminal. B. Good Battery or Remote Positive (+) and Negative (−) Terminals. C. Dead Battery or Remote Positive (+) Terminal. 5-46 All-Wheel Drive Transfer Case It is not necessary to regularly check transfer case ﬂuid unless you suspect there is a leak or you hear an unusual noise. A ﬂuid loss could indicate a problem. Have it inspected and repaired. How to Check Lubricant (A) Drain Plug (B) Filler Plug To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the ﬁller plug hole, you’ll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the ﬁller plug hole. Use care not to overtighten the plug. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12. Rear Axle When to Check Lubricant It is not necessary to regularly check rear axle ﬂuid unless you suspect there is a leak or you hear an unusual noise. A ﬂuid loss could indicate a problem. Have it inspected and repaired. 5-47 How to Check Lubricant Front Axle When to Check and Change Lubricant It is not necessary to regularly check front axle ﬂuid unless you suspect there is a leak or you hear an unusual noise. A ﬂuid loss could indicate a problem. Have it inspected and repaired. How to Check Lubricant To get an accurate reading, the vehicle should be on a level surface. The proper level is from 5/8 inch to 1 5/8 inch (15 mm to 40 mm) below the bottom of the ﬁller plug hole. Add only enough ﬂuid to reach the proper level. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12. 5-48 To get an accurate reading, the vehicle should be on a level surface. If the level is below the bottom of the ﬁller plug hole, you may need to add some lubricant. When the differential is cold, add enough lubricant to raise the level from 1/2 inch (12 mm) to about 5/8 inch (18 mm) below the ﬁller plug hole. When the differential is at operating temperature (warm), add enough lubricant to raise the level to the bottom of the ﬁller plug hole. What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See Recommended Fluids and Lubricants on page 6-12. Headlamp Aiming Your vehicle has a visual optical headlamp aiming system equipped with horizontal aim indicators. The aim has been preset at the factory and should need no further adjustment. This is true even though your horizontal aim indicators may not fall exactly on the “0” (zero) marks on their scales. 5-49 If your vehicle is damaged in an accident, the headlamp aim may be affected. Aim adjustment to the low beam may be necessary if it is difficult to see lane markers (for horizontal aim), or if oncoming drivers ﬂash their high beams at you (for vertical aim). If you believe your headlamps need to be re-aimed, we recommend that you take your vehicle to your dealer for service. However, it is possible for you to re-aim your headlamps as described in the following procedure. Notice: To make sure your headlamps are aimed properly, read all the instructions before beginning. Failure to follow these instructions could cause damage to headlamp parts. The vehicle should be properly prepared as follows: The vehicle should be placed so the headlamps are 25 ft. (7.6 m) from a light colored wall or other ﬂat surface. The vehicle must have all four tires on a perfectly level surface which is level all the way to the wall or other ﬂat surface. The vehicle should be placed so it is perpendicular to the wall or other ﬂat surface. The vehicle should not have any snow, ice or mud attached to it. The vehicle should be fully assembled and all other work stopped while headlamp aiming is being done. The vehicle should be normally loaded with a full tank of fuel and one person or 160 lbs. (75 kg) on the driver’s seat. Tires should be properly inﬂated. (cid:127) Start the vehicle and rock it to level the suspension. Headlamp aiming is done with the vehicle low beam lamps. The high beam lamps will be correctly aimed if the low beam lamps are aimed properly. The headlamp aiming devices are under the hood near the headlamps. 5-50 (cid:127) (cid:127) (cid:127) (cid:127) (cid:127) (cid:127) (cid:127) Headlamp Horizontal Aiming Turn the horizontal aiming screw (A) until the indicator (B) is lined up with zero. If you believe your headlamps need horizontal (H) (left/right) adjustment, follow the horizontal aiming procedure. If you believe your headlamps need only vertical (V) (up/down) adjustment, follow only the vertical aiming procedure. Adjustment screws can be turned with an E8 Torx® socket or T15 Torx® screwdriver. Once the horizontal aim is adjusted, then adjust the vertical aim. 5-51 Headlamp Vertical Aiming Notice: Horizontal aiming must be performed before making any adjustments to the vertical aim. Adjusting the vertical aim ﬁrst will result in an incorrect headlamp aim. 1. Find the aim dot on the lens of the low beam lamps. 3. At the wall or other ﬂat surface, measure from the ground upward the recorded distance from Step 2 and draw or tape a horizontal line the width of the vehicle. 4. Turn on the low-beam headlamps and place a piece of cardboard or equivalent in front of the headlamp not being aimed. This should allow only the beam of light from the headlamp being aimed to be seen on the ﬂat surface. Notice: Do not cover a headlamp to improve beam cut-off when aiming. Covering a headlamp may cause excessive heat build-up which may cause damage to the headlamp. 2. Measure the distance from the ground to the aim dot on each low beam lamp. Record this distance. 5-52 Bulb Replacement See Replacement Bulbs on page 5-60 for the proper type of bulbs to use. For any bulb changing procedure not listed in this section, contact your dealer. High Intensity Discharge (HID) Lighting {CAUTION: 5. Turn the vertical aiming screw (V) until the headlamp beam is aimed to the horizontal tape line. The top edge of the cut-off should be positioned at the bottom edge of the horizontal tape line. 6. Repeat Steps 4 and 5 for the opposite headlamp. The low beam high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualiﬁed technician service them. After your vehicle’s HID headlamp bulb has been replaced, you may notice that the beam is a slightly different shade than it was originally. This is normal. 5-53 Headlamps Halogen Bulbs {CAUTION: Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package. A. Low-Beam Headlamp (HID) B. Daytime Running Lamp C. Sidemarker Lamp D. High-Beam Headlamp E. Front Parking and Turn Signal Lamp 1. Open the hood of the vehicle. 5-54 2. Pry up the eight fastener plugs on the radiator cover and pull the fasteners out. 3. Lift off the radiator cover. 4. Pull the top left or right corner of the grill out so the clips release. This will give you the needed clearance for removing the headlamp assembly. 5-55 5. Remove the horizontal pin from the headlamp assembly by lifting the end of the pin upward until it unsnaps and then pulling it toward the center of the vehicle. 6. Remove the vertical pin from the headlamp assembly by turning the end of the pin away from you until it unsnaps and then pulling it upward. 7. Remove the headlamp assembly by lifting it up and then pulling it out and away from the front of the vehicle. 8. Disconnect the electrical connector from the lower corner of the headlamp assembly. This will give you better access to the headlamp assembly. 5-56 9. Remove the rubber, circular-shaped bulb cap of the affected bulb from the headlamp assembly. 15. Reconnect the electrical connector to the lower corner of the headlamp assembly. 10. Turn the bulb connector counterclockwise and remove it with the old bulb from the headlamp assembly. 11. Unplug the electrical connector from the old bulb. 12. Plug in the electrical connector to the new bulb, using care not to touch the bulb with your hands, ﬁngers or anything damp or oily. 13. Place the connector with the new bulb into the headlamp assembly and turn it clockwise until it is tight. 14. Reinstall the rubber, circular-shaped bulb cap onto the headlamp assembly. 16. Place the headlamp assembly back into the vehicle, being sure to align the lower locator tab with the pocket on the vehicle (see arrow). Push the headlamp assembly straight in and then down into position. 17. Install the two pins and snap the ends into their locked position. 18. Reinstall the grille and radiator cover by reversing the removal procedure described previously. 5-57 Front Turn Signal, Sidemarker and Daytime Running Lamps 1. Remove the headlamp assembly as described previously. 2. Remove the rubber, circular-shaped bulb cap for the affected bulb from the headlamp assembly. 3. Press the locking release lever, turn the bulb socket counterclockwise and remove it from the headlamp assembly. (There is no lock for the sidemarker lamp.) 4. Remove the old bulb from the bulb socket. 5. Put the new bulb into the bulb socket. 6. Put the bulb socket into the turn signal housing and turn it clockwise until it locks. (There is no lock for the sidemarker lamp.) 7. Reinstall the rubber, circular-shaped bulb cap to the headlamp assembly. 8. Put the headlamp assembly back into the vehicle by reversing the previous mentioned steps. A. Low-Beam Headlamp (HID) B. Daytime Running Lamp C. Sidemarker Lamp D. High-Beam Headlamp E. Front Turn Signal Lamp 5-58 Center High-Mounted Stoplamp (CHMSL) It is recommended that this component be replaced as a unit. Taillamps A. Turn Signal-Taillamp B. Stop-Taillamp C. Back-up Lamp D. Sidemarker Lamp 1. Use a screwdriver to remove the two screws from the lamp assembly. 2. Remove the lamp assembly. 3. Press the release tab and turn the bulb socket counterclockwise to remove it from the taillamp housing. (The sidemarker lamp does not have a release tab.) 5-59 4. Pull the bulb straight out from the socket. 5. Press a new bulb into the socket, insert it into the taillamp housing and turn the socket clockwise into the taillamp housing until it clicks. The sidemarker lamp does not have a release tab and therefore will not click when it is installed. 6. Reinstall the rear lamp assembly and tighten the screws. Replacement Bulbs Exterior Lamp Bulb Number Low-Beam Headlamps (HID) High-Beam Headlamps Daytime Running Lamps (DRL) Front Marker Lamp Front Parking and Turn Lamp Stop Lamp/Taillamp Side Marker Lamp Rear Turn Lamp Back-up Lamp 9005 or 9005 LL 4114K 194 3157AK 3157K 194 3157K 3157K * For replacement bulbs not listed here, please consult your dealer. 5-60 Windshield Wiper Blade Replacement Windshield wiper blades should be inspected at least twice a year for wear and cracking. See Scheduled Maintenance on page 6-4 for more information. Replacement blades come in different types and are

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2004 Cadillac Escalade Owners Manual