1998 Cadillac Seville Owners Manual

If there’s still no sign of steam, you can idle the engine for two or three minutes while you’re parked, to see if the warning stops. But then, if you still have the warning, turn ofthe 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.

5-17

When you decide it’s safe to lift the hood, here’s what you’ll see:

1 CAUTION:

An electric engine cooling fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and away from any underhood electric fan.

tools

If the coolant inside the coolant surge tank is boiling, don’t do anything else until it cools down.

A. Coolant Surge Tank with Pressure Cap B. Electric Engine Cooling Fans

5-18

If it isn’t, the coolant level should be indicated by a CHECK COOLANT LEVEL message on the Driver Information Center. If it is, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system.

Heater and radiator hoses, and other engine parts, can be very hot. Don’t touch them. If you do, you can be burned. Don’t 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 filed before you drive the vehicle.

NOTICE:

Engine damage if you keep running your engine without coolant isn’t covered by your warranty. See “Overheated Engine Protection Operating Mode” in the Index.

If there seems to be no leak, with the engine on, check to see if the electric engine cooling fans are running. If the engine is overheating, both fans should be running. If they aren’t, your vehicle needs service.

5-19

How to Add Coolant to the Coolant Surge Tank If you haven’t found a problem yet, but the coolant level isn’t at or above the fill mark at the forward edge of the surge tank, add a 50/50 mixture of clean water (preferably distilled) and DEX-COOL@ coolant at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, before you do it. (See “Engine Coolant” in the Index for more information.)

is cool

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 coolant

surge tank pressure cap -- even a little -- they

can come out at high speed. Never turn the cap when the cooling system, including the coolant surge tank pressure cap, is hot. Wait for the cooling system and coolant surge tank pressure cap to cool if you ever have to turn the pressure cap.

5-20

A CAUTION:

Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like 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 wouldn’t get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50150 mixture of clean water and DEX-COOL@ coolant.

NOTICE:

In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. So use the recommended coolant.

A 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. Don’t spill coolant on a hot engine.

3. Then fill the coolant surge tank with the proper

mixture, up to or above the fill mark at the forward edge of the surge tank.

1. You can remove the coolant surge tank pressure cap

when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, longer hot. Turn the pressure cap slowly about one-quarter turn to the left and then stop. If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left.

is no

2. Then keep turning the pressure cap slowly, and

remove it.

5-22

5. Then replace the pressure cap. Be sure the pressure

cap is tight.

Start the engine and allow it to warm up. If the CHECK COOLANT LEVEL message does not appear on the Driver Information Center, coolant is at the proper fill level. If a CHECK COOLANT LEVEL message does appear, repeat Steps 1 to 3 and reinstall the pressure cap or see your dealer.

c'

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 fans. 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 at or above the fill mark at the forward edge of the surge tank.

flash-x

on your hazard

Changing a Flat Tire

[f a Tire Goes Flat It’s unusual for a tire to “blow out” while you’re driving, If a tire goes flat, avoid further tire and wheel damage especially if you maintain your tires properly. If air goes by driving slowly to a level place. Turn out of a tire, it’s much more likely to leak out slowly. warning But if you should ever have a “blowout,” here are a few tips about what to expect and what to do: If a front tire fails, the flat tire will create a drag that off the pulls the vehicle toward that side. Take your foot accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop well out of the traffic lane. A rear blowout, particularly on a curve, acts much like a skid and may require the same correction you’d use in a skid. In any rear blowout, remove your foot from the accelerator pedal. Get the vehicle under control by steering the way you want the vehicle to go. It may be very bumpy and noisy, but you can still steer. Gently brake to a stop -- well off the road if possible. If a tire goes flat, the next part shows how to use your jacking equipment to change a flat tire safely.

Changing a tire can cause an injury. The vehicle can slip off the jack and roll over you or other people. You and they could be badly injured. Find a level place to change your tire. To help prevent the vehicle from moving:

1. Put the shift lever in PARK (P). 2. Set the parking brake firmly. 3. ”m off the engine.

To be even more certain the vehicle won’t move, you can 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 of the vehicle, at the opposite end.

5-24

The following steps will tell you how to use change a tire.

the jack and

Removing the Spare Tire and Tools The equipment you’ll need is in the trunk. Instructions for changing your tires are on the inside of the tire cover. To lift the tire cover to gain access to jacking equipment, do the following:

the spare tire and

1. Press the area at the front of the handle so that the back edge swings upward.

5-25

I 2. Grab the handle and

remove the cover.

Unscrew the wing nuts to remove the container that holds the wrench and jack. Remove the wheel wrench, jack and spare tire from the trunk.

5-26

I .A

Removing the Wheel Cover

The tools you'll be using include the jack (A) and the wheel wrench (B).

SLS Wheel Shown

On the SLS, there is a center wheel cover on the aluminum wheel. Using the flat end of the wheel wrench, gently pry the wheel cover off. Be careful not to scratch the aluminum wheel edge and don't try to remove it with your hands. On the STS, the wheel nuts and wheel nut covers are exposed. Use the wheel wrench to remove the wheel nut covers.

5-27

Removing the Flat Tire and Installing the Spare Tire

STS Wheel Shown

1. Using the wheel wrench, loosen all the wheel nuts.

Don’t remove them yet.

5-28

9.0 INCHES

(23 cm)

2.5 INCHES

(7 cm)

/!1 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.

3.

4.

Turn the jack handle to the left to lower the jack lift head until the jack fits under the car. Raise the jack until the metal flange fits firmly into the channel of the jack head. Put the compact spare near you.

5-29

2. Find the jacking location from the diagrams above and corresponding cutouts in the plastic mold' ;.

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.

~

~~

~~

~~

1 .

Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel.

5. Raise the vehicle by turning the jack handle to the

right. Raise the vehicle far enough off the ground for the spare tire to fit under the vehicle.

6. Remove all wheel nuts and take off the flat tire.

Rust or dirt on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from the places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off.

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1 A CAUTION: 4

Never use oil or grease on studs or nuts. If you do, the nuts might come loose. Your wheel could fall off, causing a serious accident.

8. Replace the wheel nuts with the rounded end of the nuts toward the wheel. Tighten each nut by hand until the wheel is held against the hub.

9. Lower the vehicle by turning the jack handle to the

left. Lower the jack completely.

10. Tighten the wheel nuts firmly in a crisscross sequence as shown.

A, CAUT-ON:

Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel to become loose and even come off. This could lead to an accident. Be sure to use the correct wheel nuts. If you have to replace them, be sure to get new GM original equipment wheel nuts. Stop somewhere as soon as you can and have the nuts tightened with a torque wrench to 100 lb-ft (140 N-m).

On the STS, screw on the wheel nut covers with your fingers, then tighten one-quarter turn with the wheel wrench.

5-32

NOTICE:

Improperly tightened wheel nuts can lead to brake pulsation and rotor damage. To avoid expensive brake repairs, evenly tighten the wheel nuts in the proper sequence and to the proper torque specification.

Don’t try to put a wheel cover on your compact spare tire. It won’t fit. Store the wheel cover and lug nut caps in the trunk until you have the flat tire repaired or replaced.

I NOTICE:

Wheel covers won’t fit on your compact. spare. If you try to put a wheel cover on your compact spare, you could damage the cover or the spare.

Storing the Flat Tire and Tools ,A 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.

After you’ve put the compact spare tire on your vehicle, you’ll need to store the flat tire in your trunk. Store the flat tire as far forward in the trunk as possible. Store the jack and wheel wrench in their compartment in the trunk. For storage, the jack must be raised until the screw end is flush with the edge of the jack.

5-33

.~

.~

A SPARE TIRE COVER

Storing the Spare Tire and Tools

' A CAUTIC J:

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.

The compact spare is for temporary use only. Replace the compact spare tire with a full-size tire as soon as you can. See the storage instructions label to replace your compact spare into your trunk properly.

5-34

Don’t use your compact spare on other vehicles. And don’t mix your compact spare tire or wheel with other wheels or tires. They won’t fit. Keep your spare tire and its wheel together.

NOTICE:

Tire chains won’t fit your compact spare. Using them can damage your vehicle and can damage the chains too. Don’t use tire chains on your compact spare.

re

Compact Span Although the compact spare tire was fully inflated when your vehicle was new, it can lose air after a time. Check the inflation pressure regularly. It should be 60 psi (420 Wa). After installing the compact spare on your vehicle, you should stop as soon as possible and make sure your spare tire is correctly inflated. The compact spare is made to perform well at speeds up to 65 mph (105 kndh) for distances up to 3,000 miles (5 000 km), so you can finish your trip and have your full-size tire repaired or replaced where you want. Of course, it’s best to replace your spare with a full-size tire as soon as you can. Your spare will last longer and be in good shape in case you need it again.

NOTICE:

When the compact spare is installed, don’t 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.

If You’re Stuck: In Sand, Mud, Ice or Snow What you don’t want to do when your vehicle is stuck is to spin your wheels too fast. The method known as “rocking” can help you get out when you’re stuck, but you must use caution.

Spinning your wheels can destroy parts of your vehicle as well as the tires. If you spin the wheels too fast while shifting your transaxle back and forth, you can destroy your transaxle.

If you let your tires spin at high speed, they can explode, and you or others could be injured. And, the transaxle or other parts of the vehicle can overheat. That could cause an engine compartment fire or other damage. When you’re stuck, spin the wheels as little as possible. Don’t spin the wheels above 35 mph (55 km/h) as shown on the speedometer.

For information about using tire chains on your vehicle, see “Tire Chains” in the Index. Rocking Your Vehicle To Get It Out First, turn your steering wheel left and right. That will clear the area around your front wheels. You should turn your traction control system off. (See “Traction Control System” in the Index.) Then shift back and forth between REVERSE (R) and a forward gear, spinning the wheels as little as possible. Release the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transaxle is in gear. If that doesn’t get you out after a few tries, you may need to be towed out. If you do need to be towed out, see “Towing Your Vehicle” in the Index.

5-36

b NOTES

5-37

kh NOTES

5-38

-a+ Section 6 Service and Appearance Care

Here you will find information about the care of your vehicle. This section begins with service and fuel information, and then it shows how to check important fluid and lubricant levels. There is also technical information about your vehicle, and a part devoted to

its appearance care.

6-2 6-3 6-5 6- 8 6- 8 6-1 1 6- 16 6- 19 6-22 6-25 6-26 6-28 6-32 6-34 6-4 1

Service Fuel Filling Your Tank Filling a Portable Fuel Container Checking Things Under the Hood Engine Oil Air Cleaner Automatic Transaxle Fluid Engine Coolant Surge Tank Pressure Cap Windshield Washer Fluid Brakes Battery Bulb Replacement Windshield Wiper Blade Replacement

6-4 I 6-50 6-50 6-53 6-54 6-55 6-57 6-58 6-58 6-59 6-66 6-66 6-67 6-68 6-68

Tires Appearance Care Cleaning the Inside of Your Vehicle Care of Safety Belts Cleaning the Outside of Your Vehicle Cleaning Tires Appearance Care Materials Chart Vehicle Identification Number (VIN) Service Parts Identification Label Electrical System Replacement Bulbs Capacities and Specifications Removing the Rear Seat Cushion Air Conditioning Refrigerants Normal Maintenance Replacement Parts

6-1

Service Your dealer knows your vehicle best and wants you to be happy with it. We hope you’ll go to your dealer for all your service needs. You’ll get genuine GM parts and GM-trained and supported service people. We hope you’ll want to keep your GM vehicle all GM. Genuine GM parts have one of these marks:

Genuine

Doing Your Own Service Work If you want to do some of your own service work, you’ll want to use the proper Cadillac 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 and Owner Publications” in the Index. Your vehicle has an air bag system. Before attempting to do your own service work, see “Servicing Your Air Bag-Equipped Vehicle” in the Index. 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” in the Maintenance Schedule Booklet.

6-2

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. Be sure you have sufficient knowledge, experience, the proper replacement parts and tools before you attempt any vehicle maintenance task. 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 your vehicle.

to the outside of

Fuel Use premium unleaded gasoline rated at 91 octane or higher for best performance. You may use middle grade or regular unleaded gasolines, but your vehicle may not accelerate as well. At a minimum, the gasoline you use should meet specifications ASTM D4814 in the United States and CGSB 3.5-M93 in Canada. Improved gasoline specifications have been developed by the American Automobile Manufacturers Association (AAMA) for better vehicle performance and engine protection. Gasolines meeting the AAMA specification could provide improved driveability and emission control system protection compared to other gasolines. Be sure the posted octane for premium is at least 91 (at least 89 for middle grade and 87 for regular). If the octane is less than 87, you may get a heavy knocking noise when you drive. If it’s bad enough, it can darnage your engine. If you’re using fuel rated at the recommended octane or higher and you hear heavy knocking, your engine needs service. But don’t worry if you hear a little pinging noise when you’re accelerating or driving up a hill. That’s normal, and you don’t have to buy a higher octane fuel to get rid of pinging. It’s the heavy, constant knock that means you have a problem.

If your vehicle is certified to meet California Emission Standards (indicated on the underhood emission control label), it is designed to operate on fuels that meet California specifications. If such fuels are 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 on your instrument panel may turn on and/or your vehicle may fail a smog-check test. If this occurs, return to your authorized Cadillac dealer for diagnosis to determine the cause of failure. In the event it is determined that the cause of the condition is the type of fuels used, repairs may not be covered by your warranty. Some gasolines that are not reformulated for low emissions contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask your service station operator whether or not his fuel contains MMT. General Motors does not recommend the use of such gasolines. If fuels containing MMT are used, spark plug life may be reduced and your emission control system performance may be affected. The malfunction indicator lamp on your instrument panel may turn on. If this occurs, return to your authorized Cadillac dealer for service.

To provide cleaner air, all gasolines in the United States are now required to contain additives that will help prevent deposits from forming in your engine and fuel system, allowing your emission control system to function properly. Therefore, you should not have to add anything to the fuel. In addition, gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines may be available in your area to help clean the air. General Motors recommends that you use these gasolines if they comply with the specifications described earlier.

I NOTICE:

Your vehicle was not designed for fuel that contains methanol. Don’t use it. It can corrode metal parts in your fuel system and also damage plastic and rubber parts. That damage wouldn’t be covered under your warranty.

6-4

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 wouldn’t be covered by your warranty. To check on fuel availability, ask an auto club, or contact a major oil company that does business in the country where you’ll be driving. You can also write us at the following address for advice. Just tell us where you’re going and give your Vehicle Identification Number (VIN).

General Motors Overseas Distribution Corporation 1908 Colonel Sam Drive Oshawa, Ontario LlH 8P7

Filling Your Tank

The cap is behind a hinged door on the driver’s your vehicle.

side of

Gasoline vapor is highly flammable. It burns violently, and that can cause very bad injuries. Don’t smoke if you’re near gasoline or refueling your vehicle. Keep sparks, flames and smoking materials away from gasoline.

6-5

To open the fuel door, push the fuel release button located below the light controls under the instrument panel on the left-hand side. The vehicle must be in PARK (P) or NEUTRAL (N) and the valet lock switch must be off.

An alternate fuel door release is located inside of the trunk on the left-hand side. Pull it to release the fuel door.

While refueling, hang the cap by the tether from the hook on the filler door. To remove the cap, turn it slowly to the left (counterclockwise). The cap has a spring in it; if you let go of the cap too soon, it will spring back to the right.

6-6

A C ’

If you get gasoline on yourself and then something ignites it, you could be badly burned. Gasoline can spray out on you if you open the fuel filler cap too quickly. This spray can happen if your tank is nearly full, and is more likely in hot weather. Open the fuel filler cap slowly and wait for any “hiss” noise to stop. Then unscrew the cap all the way.

Be careful not to spill gasoline. Clean gasoline from painted surfaces as soon as possible. See “Cleaning the Outside of Your Vehicle” in the Index.

When you put the cap back on, turn it to the right (clockwise) until you hear a clicking sound. 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” in the Index.

NOTICE:

If you need a new cap, be sure to get 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 your fuel tank and emissions system may be damaged. See “Malfunction Indicator Lamp” in the Index.

6-7

"illinr a T--table Fuel Cont-iner

Checking Things Und -T the I'3od

m - -

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:

Dispense gasoline only into approved containers. 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. 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. Don't smoke while pumping gasoline.

An electric fan under the hood can start up and injure you even when the engine is not running. Keep hands, clothing and tools away from any underhood electric fan.

A CAUTION:

Things that burn can get on hot engine parts and start a fire. These include liquids like gasoline, 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.

6-8

Hood Release

Pull the lever inside the vehicle to open the hood. It is located on the lower left side of the instrument panel.

Then go to the front of the vehicle and find the secondary hood release which is located below the front grille. Move the release lever to the hood.

the left as you raise

6-9

When you open the hood, you’ll see:

A. Windshield Washer Fluid B. Power Steering Fluid C. Engine Oil Fill Location D. Engine Oil Dipstick Location

E. Brake Master Cylinder E Transaxle DipsticWill Location G. Engine Air Cleaner H. Surge TanMCoolant Fill Location

Before closing the hood, be sure all filler caps are on properly. Then pull the hood down and close it firmly. Underhood Lamp Turn the parking lamps on to operate the underhood lamp. The underhood lamp will come on when the hood is opened. Engine Oil

It's 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 is located directly behind the radiator. The black handle says ENGINE OIL on it.

A CHECK OIL LEVEL message will appear when the engine oil is approximately 1 quart (IL) low. If the message is displayed, check the dipstick level and add oil as needed.

Turn off the engine and give the oil a few minutes to drain back into the oil pan. If you don't, the oil dipstick might not show the actual level.

6-11

Checking Engine Oil 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.

NOTICE:

Don’t add too much oil. If your engine has so much oil that the oil level gets above the upper mark that shows the proper operating range, your engine could be damaged.

The oil fill cap is located behind the radiator on the passenger’s side of the engine. Turn the cap counterclockwise to remove it.

When to Add Engine Oil If the oil is at or below the ADD line, then you’ll need to add at least one quart of oil. But you must use the right kind. This part explains what kind of oil to use. For crankcase capacity, see “Capacities and Specifications’’ in the Index.

Be sure to fill it enough to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you’re through.

6-12

What Kind of Engine Oil to Use Oils recommended for your vehicle can be identified by looking for the "Starburst" symbol. This symbol indicates that the oil has been certified by the American Petroleum Institute (API). Do not use any oil which does not carry this Starburst symbol.

If you change your own oil, be sure you use oil that has the Starburst symbol on the front of the oil container. If you have your oil changed for you, be sure the oil put into your engine is American Petroleum Institute certified for gasoline engines.

You should also use the proper viscosity oil for your vehicle, as shown in the following chart:

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS

FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT ME LOWEST SA€ VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.

FOR THIS SYMBOL

WOK

law-30 SAE PREFERRED .bow 0°F

(-1 eoC)

HOT

WEATHER 7 7 I "F "C

c 100-

+ 80 ' + 60.

+ 38

+ 27

+ 16

+40.

+ 4

+ 20 -

- 7

0 -

- 18

WEATHER

DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED

6-13

is ready to

Engine Oil Additives Don’t add anything to your oil. Your dealer advise if you think something should be added. When to Change Engine Oil Your vehicle has an Oil Life Indicator. This feature will let you know when to change your oil and filter -- usually between 3,000 miles (5 000 km) and 7,500 miles (12 500 km) since your last oil change. Under severe conditions, the indicator may come on before 3,000 miles (5 000 km). Never drive your vehicle more than 7,500 miles (12 500 km) or 12 months (whichever occurs first) without an oil change. The system won’t detect dust in the oil. So, if you drive in a dusty area, be sure to change your oil every 3,000 miles (5 000 km) or sooner. Remember to reset the Oil Life Indicator when the oil has been changed. For more information, see “Oil Life Indicator” in the Index.

As shown in the chart, SAE 1OW-30 is best for your vehicle. However, you can use SAE 5W-30 if it’s going to be colder than 60 O F ( 16 “C) before your next oil change. When it’s very cold, you should use SAE 5W-30. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils, such as SAE 20W-50.

NOTICE:

Use only engine oil with 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 where the temperature falls below -20°F (-29”C), consider using either an SAE 5W-30 synthetic oil or an SAE OW-30 oil. Both will provide easier cold starting and better protection at extremely low temperatures.

for your engine

6-14

How to Reset the Oil Life Indicator After the oil has been changed, display the ENGINE OIL LIFE message by pressing the INFO button. Then press and hold the INFO RESET button until the display shows “100.” This resets the oil life index. The message will remain off until the next oil change is needed. The percentage of oil life remaining may be checked at any time by pressing the INFO button several times until the ENGINE OIL LIFE message appears. For more information on the Oil Life feature, see “Oil Life Indicator” in the Index.

What to Do with Used Oil Did you know that used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer? Don’t 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 throw away 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 real threat to the environment. If you change your own oil, be sure to drain all free-flowing oil from the filter before disposal. Don’t ever 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. you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help.

If

6-15

Air Cleaner

The air cleaner is located next to the coolant surge tank on the driver’s side of the engine. Be sure the engine has cooled before following these steps to replace the air cleaner filter:

1. Disconnect the Intake Air Temperature (IAT) sensor from the clean air duct .

2. With a screwdriver, loosen the air duct clamp, which is located at the mass airflow sensor end of the air duct.

6-16

3. Disconnect the air duct from the mass airflow sensor.

4. Unhook both air cleaner cover latches. 5. Move the air cleaner lid out of the way.

6. Take out the air cleaner filter and remove any

loose debris that may be found laying in the air cleaner base.

7. Install a new air filter element. See “Normal

Maintenance Replacement Parts” in the Index.

2.

3.

into the slots in the bottom of

Follow these steps to reinstall the air cleaner assembly: 1.

Slide the air cleaner lid the air cleaner base. Close the cover and make sure that both latches are secure and fully engaged. Reinstall the clean air duct over sensor. Make sure that the duct is secure around the entire outer edge of the sensor. Tighten the air duct clamp. Reconnect the MI’ sensor.

4. 5. Refer to the Maintenance Schedule to determine when to replace the air filter. See “Scheduled Maintenance Services” in the Maintenance Schedule booklet.

the mass airflow

’ A (

JTION:

Operating the engine with the air cleaner off can cause you or others to be burned, The air cleaner not only cleans the air, it stops flame if the engine backfires. If it isn’t there, and the engine backfires, you could be burned. Don’t drive with it off, and be careful working on the engine with the air cleaner off.

I NOTICE:

If the air cleaner is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner in place when you’re driving.

6-18

Automatic Transaxle Fluid When to Check and Change A good time to check your automatic transaxle 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: 0 In heavy city traffic where the outside temperature

regularly reaches 90 O F (32 O C) or higher.

0 In hilly or mountainous terrain. 0 When doing frequent trailer towing. 0 Uses such as found in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, the fluid and filter do not require change until the message CHANGE TRANS FLUID appears on the Driver Information Center. See “Scheduled Maintenance Services” in the Index.

How to Check Because this operation can be a little difficult, you may choose to have this done at your Cadillac 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.

1 NOTICE:

Too much or too little fluid can damage your transaxle. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be sure to get an accurate reading if you check your transaxle fluid.

-1

Wait at least 30 minutes before checking the transaxle fluid level if you have been driving:

When outside temperatures are above 90°F (32°C). At high speed for quite a while. In heavy traffic -- especially in hot weather.

0 While pulling a trailer.

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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), you may have to drive longer. Checking the Fluid Level

Park your vehicle on a level place. Keep the engine running. With the parking brake applied, place the shift lever in PARK (P). 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 to five minutes.

Then, without shutting off the engine, follow these steps:

The transaxle fluid cap is located next to the radiator hose and below the air cleaner assembly on the driver's side of the engine.

Remove the air cleaner assembly so you can reach the transaxle fluid cap. Turn the cap to the left to remove. Pull out the dipstick and wipe it with a clean rag or paper towel.

6-20

1. Push it back in all the way, wait three seconds and

then pull it back out again.

1. Pull out the dipstick. 2. Using a long-neck funnel, add enough fluid at the

dipstick hole to bring it to the proper level. It doesn’t take much fluid, generally less than one pint (0.5 L). Don’t overfill.

I NOTICE:

2. Check both sides of the dipstick, and read the lower

level. The fluid level must be in the cross-hatched area.

3. If the fluid level is in the acceptable range, push the dipstick back in all the way. Replace the air cleaner assembly. How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transaxle fluid to use. See “Recommended Fluids and Lubricants” in the Index. If the fluid level is low, add only enough of the proper fluid to bring the level into the cross-hatched area on the dipstick.

We recommend you use only fluid labeled DEXRON@-111, because fluid with that label is made especially for your automatic transaxle. Damage caused by fluid other than DEXRON-I11 is not covered by your new vehicle warranty.

3. After adding fluid, recheck the fluid level as

described under “How to Check.”

4. When the correct fluid level is obtained, push the

dipstick back in all the way.

3 Change

How to Reset tk I ’I’ - ~- - - Indicator After the transaxle fluid has been changed, display the TRANS FLUID LIFE message by pressing the INFO button. Then press and hold the INFO RESET button until the display shows “loo.” This resets the transaxle fluid life index. The message will remain off until the next transaxle fluid change is needed. The percentage of transaxle fluid life remaining may be checked at any time by pressing the INFO button several times until the TRANS FLUID LIFE message appears. Engine Coolant The cooling s stem in your vehicle is filled with is designed DEX-COOL engine coolant. This coolant 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” in the Index.

A 50/50 mixture of water and DEX-COOL@ coolant will: 0 Give freezing protection down to -34°F (-37°C). 0 Give boiling protection up to 265°F (129°C).

Protect against rust and corrosion. Help keep the proper engine temperature. 0 Let the warning lights and gages work as

they should.

NOTICE:

When adding coolant, it is important that you use only DEX-COOL@ (silicate-free) coolant. If coolant other than DEX-COOL is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the

engine coolant will require change sooner -- at

30,000 miles (50 000 km) or 24 months, whichever occurs first. Damage caused by the use of coolant other than DEX-COOL@ is not covered by your new vehicle warranty.

6-22

What to Use Use a mixture of one-half clean water (preferably distilled) and one-half DEX-COOL@ coolant which won’t damage aluminum parts. If you use this mixture, you don’t need to add anything else.

Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like 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 wouldn’t get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean water and DEX-COOL@ coolant.

NOTICE:

If you use an improper coolant mixture, your engine could overheat and be badly damaged. The repair cost wouldn’t 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:

If you use the proper coolant, you don’t have to add extra inhibitors or additives which claim to improve the system. These can be harmful.

6-23

Checking Coolant

The surge tank is located on the driver's side of the engine. The cooling system is under a lot of pressure when it is hot. If the CHECK COOLANT LEVEL message appears on the Driver Information Center, you will need to add coolant.

6-24

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.

When your engine is cold, the coolant level should be at the FULL COLD mark, which is at or above the fill mark at the edge of the surge tank.

Mffl

If the CHECK COOLANT LEVEL message comes on, it means you're low on engine coolant.

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.

I A 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. Don’t spill coolant on a hot engine.

When replacing the surge tank pressure cap, make sure it is tight.

~~

Surge Tank Pressure Cap

I NOTICE:

The surge tank cap is a 15 psi (105 kPa) pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. Two and one-half turns are required to seal the cap.

If the surge tank pressure cap needs to be replaced, a GM cap is recommended. Thermostat Engine coolant temperature is controlled by a thermostat in the engine coolant system. The thermostat stops the flow of coolant through the radiator until the coolant reaches a preset temperature. If your thermostat needs to be replaced, a GM thermostat is recommended.

6-25

Power Steering Fluid

The power steering fluid reservoir is located next to the fuse relay center on the passenger’s side of the engine.

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.

6-26

How To Check Power Steering Fluid When the engine compartment is cool, 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. What to Use To determine what kind of fluid to use, see “Recommended Fluids and Lubricants” in the Maintenance Schedule booklet. 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.

Adding Washer Fluid

to The windshield washer fluid reservoir is located next the fuse relay center on the passenger’s side of the engine. Open the cap labeled WASHER FLUID. Add washer fluid until the tank is full.

NOTICE:

When using concentrated washer fluid, follow the manufacturer’s instructions for adding water. Don’t 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 doesn’t clean as well as washer fluid. Fill your washer fluid tank only three-quarters full when it’s very cold. This allows for expansion if freezing occurs, which could damage the tank if it is completely full. Don’t use engine coolant (antifreeze) m your windshield washer. It can damage your washer system and paint.

6-27

BrakPc Brake Fluid

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 won’t work well, or won’t work at all. So, it isn’t a good idea to “top off’ your brake fluid. Adding brake fluid won’t correct a leak. when your linings are worn, then you’ll 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. I m -

If you add fluid

I a Ch JTION:

Your brake master cylinder reservoir is here. It is filled with DOT-3 brake fluid. 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

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.

When your brake fluid falls to a low level, your brake warning light will come on. See “Brake System Warning Light” in the Index.

6-28

What to Add When you do need brake fluid, use only DOT-3 brake fluid -- such as Delco Supreme 11 No. 12377967). Use new brake fluid from a sealed container only. 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.

(GM Part

With the wrong kind of 1 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.

id in your brake

NOTICE:

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’ll have to be replaced. Don’t 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” in the Index.

6-29

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). r A CAUTION:

The brake wear warning sound means that soon your brakes won’t work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced.

to be replaced. (See

Your vehicle also has electronic wear sensors that let you know when the brake pads are significantly worn and new pads are needed. The CHANGE BRAKE PADS message will be displayed on the Driver Information Center when the brake pads are worn and need “Change Brake Pads Message” in the Index.)

I A CAUTION: \-I The CHANGE BRAKE PADS message or the high-pitched warning sound means that soon your brakes won’t work well. That could lead to an accident. When the CHANGE BRAKE PADS message comes on and stays on, have your vehicle serviced.

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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 torque wheel nuts in the proper sequence to GM specifications. Brake linings should always be replaced as complete axle sets. See “Brake System Inspection’’ in the Maintenance Schedule booklet under Part C “Periodic Maintenance Inspections.” Brake Pedal navel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble.

Brake Adjustment Every time you apply the brakes, with or without the vehicle moving, your brakes adjust for wear. Replacing Brake System Parts The braking system on a modern 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 have to have new ones put in -- be sure you get new approved GM replacement parts. If you don’t, 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’ve come to expect can change in many other ways if someone puts in the wrong replacement brake parts.

6-31

Battery Every new Cadillac has an ACDelco Freedom@ battery. You never have to add water to one of these. When it’s time for a new battery, we recommend an ACDelco Freedom battery. Get one that has the replacement number shown on the original battery’s label. The battery is located under the rear seat cushion. To access the battery, see “Removing the Rear Seat Cushion” in the Index. You don’t need to access the battery to jump start your vehicle. See “Jump Starting” in the Index.

‘AC SJ-ION:

A battery that isn’t properly vented can let sulfuric acid fumes into the area under the rear seat cushion. These fumes can damage your rear seat safety belt systems. You may not be able to see this damage, and the safety belts might not provide the protection needed in a crash. If a replacement battery is ever needed, vented in the same manner as the original battery. Always make sure that the vent hose is properly reattached before reinstalling the seat cushion.

it must be

6-32

To be sure the vent hose (A) is properly attached, the vent hose connectors (B) must be securely reattached to the vent outlets (C) on each side of the battery, and the vent assembly grommet (D) must be secured to the floor Pan (E).

Vehicle Storage If you’re 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. A CAUTIOY

Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you aren’t careful. See “Jump Starting’’ in the Index 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” in the Index.

6-33

Headlamps 1. Open the hood and remove the upper filler panel by loosening all the screws and then lifting the whole panel. You can later reinstall the upper filler panel by popping the grommets, along with the screws, back into the holes.

Bulb Replacement For any bulb changing procedure not listed in this section, contact your dealer service department. Ualogen B--%

4 CAUTT^”T:

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.

2. Remove the two bolts fastening the headlamp to the

headlamp mounting bracket.

3. Pull the headlamp straight forward to disengage the

locator pin at the outboard edge of the headlamp.

6-34

4. To replace the low-beam bulb, first remove the

rubber housing cover on the rear of the lamp,

then turn the bulb socket counterclockwise to unlock the socket from the lamp housing.

6-35

5. Remove the headlamp bulb socket.

6.

7.

After removing the wiring harness connector from the headlamp bulb socket, replace the bulb assembly. Reconnect it to the wiring harness and reinstall the headlamp bulb assembly back into the headlamp housing. After reinstalling the bulb and socket, reinstall the rubber cover. Make sure it fully covers the headlamp socket. To replace the high-beam bulb, turn the bulb socket counterclockwise to unlock the socket from the lamp housing. Follow the instructions in Step 6 to install the new bulb.

8.

To reinstall the bulb and socket, reverse the instructions given above.

6-36

Headlamp Aiming Your vehicle has the composite headlamp system. These headlamps have horizontal and vertical aim indicators. The aim has been pre-set at the factory and should need no further adjustment. If your vehicle is damaged in an accident and the headlamp aim seems to be affected, see your dealer. Headlamps on damaged vehicles may require recalibration of the horizontal aim by your dealer. To check the aim, the vehicle should be properly prepared as follows:

Place the vehicle on a level pad or 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. There should not be any cargo or loading of the vehicle, except it should have a full tank of fuel and one person or 160 lbs. (75 kg) on the driver’s seat. Tires should be properly inflated. Rock the vehicle to stabilize the suspension.

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.

For the vertical adjustment, state inspection stations generally will allow a reading of plus 0.76 degrees or minus 0.76 degrees from the center of the bubble. It is recommended that the upper limit not exceed plus 0.4 degrees from the center of the bubble. Other drivers may flash their high beams at you if your adjustment is much above plus 0.4 degrees. If you find that the headlamp aiming needs adjustment, follow these steps: Adjustment screws can be turned with an E8 Torx@ socket or T15 Torx screwdriver.

1. Locate the vertical

aiming screw (B) that is directly behind the headlamp assembly.

2. Turn the vertical aiming screw until the bubble

inside the level (A) is centered at zero (0).

3. Now check the

horizontal aim (C) and adjust it as necessary. The horizontal aiming device is located on the inboard side of each lamp. Turn the horizontal aiming screw (D) until the screw aligns with the zero (0).

4. Recheck the vertical aim level (A) to make sure it is still correct after the horizontal aim adjustment. Re-adjust as necessary.

6-38

Front Tlurn Signal Lamps 1. The turn signal lamps are located on the outboard

side of the headlamps. To access, remove the headlamp, (see Steps 1,2 and 3 under “Headlamps”).

Center High-Mounted Stoplamp (CHMSL) The individual bulbs in the CHMSL are not serviceable. See your dealer for assistance. Rear Turn Signal Lamps and Taillamps 1. Open the trunk to gain access to the lamp housing.

2. Remove the rear

compartment sill plate by removing the upper convenience net retainers, located at each end, as shown.

2. Press the bulb socket tab and turn the bulb socket to

the left to unlock the socket from the lamp housing.

3. To remove the bulb, grasp the socket firmly and pull

the bulb out. Install the new bulb and reverse the steps to replace.

Move the spare tire cover out of the way. Pull the trunk trim away to access the wing nuts.

6-39

_I

3. Remove the three wing nuts that fasten the taillamp

to the body.

4. Gently remove the taillamp from the body. The

taillamp is on the bottom of the housing and the rear turn signal lamp is on the upper part of the housing.

5. Press the bulb socket tab and rotate the socket

counterclockwise to remove it. To remove the bulb, grasp the socket firmly and pull the bulb out.

Once you have replaced the burned-out bulb, reverse the steps to reassemble the lamp assembly.

6-40

-

Windshield Wiper Blade Replacement It’s a good idea to clean or replace the wiper blade assembly on a regular basis or when worn. For proper windshield wiper blade length and type, see “Normal Maintenance Replacement Parts” later in this section.

To replace the wiper blade assembly: 1. Lift the wiper up from the windshield and set into

the vertically-locked position.

2. Press the tab that holds the wiper blade to the arm. 3. Slide the blade down and off the arm. 4. Slide in the new blade and snap into place. Tires Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your Cadillac Warranty booklet for details.

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A CAUTION:

Poorly maintained and improperly used tires are dangerous.

Overloading your tires can cause overheating as a result of too much friction. You could have an air-out and a serious accident. See “Loading Your Vehicle” in the Index. Underinflated tires pose the same danger as overloaded tires. The resulting accident could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when your tires are cold. Overinflated tires are more likely to be cut, punctured or broken by a sudden

impact -- such as when you hit a pothole.

Keep tires at the recommended pressure.

CAUTION: (Continued)

6-42

I CAUTION: (Continued) 0 Worn, old tires can cause accidents. If your See “Inflation -- Tire Pressure” in this section

tread is badly worn, or if your tires have been damaged, replace them.

for inflation pressure adjustment for higher speed driving.

Inflation -- Tire Pressure The Tire-Loading Information label, which is located an the rear edge of the driver’s door, shows the correct inflation pressures for your tires when they’re cold. “Cold” means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). If you’ll be driving at high speeds (e.g., speeds of 100 mph (160 km/h) or higher), where it is legal, set the cold inflation pressure to the maximum inflation pressure shown on the tire sidewall, or to 38 psi (265 Wa), whichever is lower. See the example below. When you end this high-speed driving, return to the cold inflation pressure shown on the Tire-Loading Information label.

Example: You’ll find maximum load and inflation pressure molded on the tire’s sidewall, in small letters, near the rim flange. It will read something like this: Maximum load 690 kg (1521 lbs.) @ 300 kPa (44 psi) Max. Press. For this example, you would set for high-speed driving at 38 psi (265 kPa).

the inflation pressure

NOTICE:

I NOTICE: (Continued)

If your tires have too much air (overinflation), you can get the following:

Unusual wear Bad handling Rough ride

0 Needless damage from road hazards.

Don’t let anyone tell you that underinflation or overinflation is all right. It’s not. If your tires don’t have enough air (underinflation), you can get the following: 4) Too much flexing 4) Too much heat 4) Tire overloading

Bad wear Bad handling

a Bad fuel economy.

NOTICE: (Continued)

It should be at

When to Check Check your tires once a month or more. Don’t forget your compact spare tire. 60 psi (420 P a ) . How to Check Use a good quality pocket-type gage to check tire pressure. You can’t tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they’re underinflated. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.

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Tire Inspection and Rotation Tires should be rotated every 6,000 to S,O00 miles (10 000 to 13 OOO km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See “When It’s Time for New Tires” and “Wheel Replacement” later in this section for more information. The purpose of regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See “Scheduled Maintenance Services” in the Maintenance Schedule booklet for scheduled rotation intervals.

Don’t include the compact spare tire in your tire rotation. After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire-Loading Information label. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” in the Index.

Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off. (See “Changing a Flat Tire” in the Index.)

When rotating your tires, always use the correct rotation pattern shown here. 6-44

When It’s Time for New Tires

One way to tell when it’s time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining.

You need a new tire if any of the following statements are true:

You can see the indicators at three or more places around the tire. You can see cord or fabric showing through the tire’s rubber. The tread or sidewall is cracked, cut or snagged deep enough to show cord or fabric.

0 The tire has a bump, bulge or split. 0 The tire has a puncture, cut or other damage that

can’t be repaired well because of the size or location of the damage.

Buying New Tires To find out what kind and size of tires you need, look at the Tire-Loading Information label. The tires installed on your vehicle when it was new had a Tire Performance Criteria Specification (TPC Spec) number on each tire’s sidewall. When you get new tires, get ones with that same TPC Spec number. That way your vehicle will continue to have tires that are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If your tires have an all-season tread design, the TPC number will be followed by an “MS” (for mud and snow). If you ever replace your tires with those not having TPC Spec number, make sure they are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires.

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Uniform Tire Quality Grading The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance. (This applies only to vehicles sold in the United States.) The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading system does not apply to deep tread, winter-type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to Federal safety requirements and additional General Motors Tire Performance Criteria (TPC) standards.

A CAUTIL I:

Mixing tires could cause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes may also cause damage to your vehicle. Be sure to use the same size and type tires on all wheels. It’s all right to drive with your compact spare, though. It was developed for use on your vehicle.

I A CAUTION:

If you use bias-ply tires on your vehicle, the wheel rim flanges could develop cracks after many miles of driving. A tire and/or wheel could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on your vehicle.

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Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate. Traction -- AA, A, B, C The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on braking (straight ahead) traction tests and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

Temperature -- A, B, C

The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carehlly at the factory to give you the longest tire life and best overall performance. Scheduled wheel alignment and wheel balancing are not needed. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced. Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your dealer if any of these conditions exist. Your dealer will know the kind of wheel you need.

Each new wheel should have the same load-carrying capacity, diameter, width, offset and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts and wheel nuts for your Cadillac model.

Using the wrong replacement wheels, wheel bolts or wheel nuts on your vehicle can be dangerous. It could affect the braking and handling of your vehicle, make your tires lose air and make you lose control. You could have a collision in which you or others could be injured. Always use the correct wheel, wheel bolts and wheel nuts for replacement.

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Tire Cha’ s

NOTICE:

Use tire chains only where legal and only when you must. Use only SAE Class “S” type chains that are the proper size for your tires. Install them on the front tires and tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer’s instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with chains on will damage your vehicle.

NOTICE:

The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance and tire or tire chain clearance to the body and chassis.

See “Changing a Flat Tire” in the Index for more information.

Used Reti ----Yt Wheels

Putting a used wheel on your vehicle is dangerous. You can’t know how it’s been used or how far it’s been driven. It could fail suddenly and cause an accident. If you have to replace a wheel, use a new GM original equipment wheel.

They can all be hazardous -- some more than others -- and they can all damage your vehicle, too. .Don’t use any of these unless this manual says you can. ‘In many uses, these will damage your vehicle:

Alcohol Laundry Soap

0 Bleach

Reducing Agents

Cleaning the Inside of Your Vehicle Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl or leather with a clean, damp cloth. Your dealer has two cleaners, Multi-Purpose Interior Cleaner and Capture Non-Solvent Dry Spot and Soil Remover. They will clean normal spots and stains very well. You can get GM-approved cleaning products from your dealer. (See “Appearance Care and Materials” in the Index.)

Appearance Care Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flame if you strike a match or get them on a hot part of the vehicle. Some ire dangerous if you breathe their fumes in a closed space. When you use anything from a container to clean your vehicle, be sure to follow the manufacturer’s warnings and instructions. And always open your doors or windows when you’re cleaning the inside. Never use these to clean your vehicle:

Gasoline Benzene Naphtha Carbon Tetrachloride Acetone Paint Thinner Turpentine Lacquer Thinner Nail Polish Remover

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Here are some cleaning tips: 0 Always read the instructions on the cleaner label.

Clean up stains as soon as you can -- before they set.

0 Carefully scrape off any excess stain.

Use a clean cloth or sponge, and change to a clean area often. A soft brush may be used if stains are stubborn.

0 If a ring forms after spot cleaning, clean the entire

area immediately or it will set.

Using Multi-Purpose Interior Cleaner on Fabric 1. Vacuum and brush the area to remove any loose dirt. 2. Always clean a whole trim panel or section. Mask

surrounding trim along stitch or welt

lines.

3. Mix powdered cleaner following the directions on

the container label to form thick suds.

4. Use suds only and apply with a clean sponge. Don’t

saturate the material and don’t rub it roughly.

5. As soon as you’ve cleaned the section, use a sponge