2003 Chevrolet Monte Carlo Owners Manual

to light and may damage your fuel tank and emissions system. See “Malfunction Indicator Lamp” in the Index.

Filling a Portable Fuel Container

-l

Neve, ,ill a portable fuel conl,,,ler 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:

’

it is inside a

Dispense gasoline only into approved containers. Do not fill a container while 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 enti! the fi!!jnn ymnlntn Don’t smoke while pumping gasoline.

r-----

5-9

Checking Things Under the Hood

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.

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.

5-1 0

Hood Release

2. Then go to the front of the vehicle and release the

secondary hood release.

3. Lift the hood.

Before closing the hood, be sure all the filler caps are on properly. Then pull the hood down and close it firmly.

5-1 1

A. Windshield Washer Fluid Reservoir B. Battery C. Remote Positive Terminal D. Upper Underhood Fuse Block E. Lower Underhood Fuse Block F. Radiator Pressure Cap G. Engine Coolant Recovery Tank H. Power Steering Fluid Reservoir

I. Electric Cooling Fan J. Engine Oil Fill Cap K. Engine Oil Dipstick L. Bleed Valves (underneath engine shield) M. Transaxle Fluid Dipstick N. Brake Master Cylinder Reservoir 0. Engine Air CleanedFilter

5-1 3

When you open the hood on the 3800 V6 (Code K) engine, you’ll see the following:

5-1 4

A. Windshield Washer Fluid Reservoir B. Battery C. Remote Positive (+) Terminal D. Upper Underhood Fuse Block E. Lower Underhood Fuse Block F. Radiator Pressure Cap G. Engine Coolant Recovery Tank H. Power Steering Fluid Reservoir (low in engine

compartment)

I. Electric Cooling Fan J. Engine Oil Dipstick K. Engine Oil Fill Cap L. Bleed Valve (underneath engine shield) M. Transaxle Fluid Dipstick N. Brake Master Cylinder Reservoir 0. Engine Air Cleaner/Filter

Engine Oil

United States

Canada

If the LOW ENG OIL LEVEL message appears on the instrument cluster, it means you need to check your engine oil level right away. For more information, see Low Oil Pressure Message on page 3-42. You should check your engine oil level regularly; this is an added reminder.

5-1 5

Checking 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.

3400 (Code

E)

3400 (Code E)

V6 Engine

3800 (Code K) Engine

The engine oil dipstick handle is the yellow loop located near the front of the engine. See Engine Compartment Overview on page 5-12 for more information on location. 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. 5-1 6

3800 (Code K) V6

Engine

When to Add Engine Oil If the oil is at or below the cross-hatched area at the tip of the dipstick, 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 engine oil crankcase capacity, see Capacities and Specifications on page 5-97. Notice: Don’t 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.

SAE IOW-30 A

3400 (Code E) V6

Engine

~~~

r, 3800 (Code K) V6

Engine

The engine oil fill cap is located toward the front of the engine near the yellow-looped engine oil dipstick handle. See Engine Compartment Overview on page 5-12 for more information on location. Be sure to fill it enough to put the level somewhere in the proper operating range in the cross-hatched area. Push the dipstick all the way back in when yuu I t : ll lluuyr I.

. - . I -

XI-

.7..-

5-1 7

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 choose to perform the engine oil change service yourself, be sure the oil you use 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

I Petroleum Institute certified

for gasoline engines.

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

5-1 8

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS

~1

FOR MIS SYMBOL

LOOK

HOT

WEATHER "C

+ 100 -

+ 38

t 80

+ 60 -

+ 27

+ 16

+40 ~

+ 4

t 20 .

- 1

0 -

- 18

1 1 - 1

1OW-30 ACCEPTABLE

SAE

IF 5W-30 IS NOT AVAllABLE

-30

RECOMMENDED

CI

1 LD

WEATHER

DO NOT USE SAE 1OW-40, SAE 2OW-50 OR ANY OTHER VISCOSITY GRADE OIL NOT RECOMMENDED

3400 (Code E) V6 Engine

As in the chart shown previously, if you have the 3400 V6 engine, SAE 5W-30 is the only viscosity grade recommended for your vehicle. You should look for and use only oils which have the API Starburst symbol and which are also identified as SA€ 5W-30. If you cannot find such SAE 5W-30 oils, you can use an SAE 1OW-30 oil which has the API Starburst symbol, if it’s going to be 0°F (-18°C) or above. Do not use other viscosity grade oils, such as SA€ IOW-40 or SAE 20W-50 under any conditions. As shown in the following chart, if you have the 3800 V6 engine, SA€ 1OW-30 is the viscosity grade recommended for your vehicle. However, you can use SAE 5W-30 if it’s going to be colder than 60°F (16°C) before your next oil change. When it’s very cold, colder than 0°F (-18”C), you should use an SAE 5W-30 oil. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity grade oils, such as SAE IOW-40 or SAE 2OW-50 under any conditions.

RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS

FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.

LOWEST

-~

~~

~.

.~

1DW-30

I- SAE

- SAE 5W-30 -

PREFERRED above 0°F

(-l WC)

HOT

WEATHER $’ F

+ 100-

*801

601

t 40

+ 20

0 -

WEATHER

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

3800 (Code K) V6 Engine

5-1 9

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 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 and SAE OW-30 oil. Both will provide easier cold starting and better protection for your engine at extremely low temperatures. Engine Oil Additives Don't add anything to your oil. The recommended oils with the starburst symbol are all you will need for good performance and engine protection.

When to Change Engine Oil (GM Oil Life SystemTM) 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. 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.

5-20

How to Reset the Change Engine Oil Message The GM Oil Life SystemTM 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 can change your oil prior to a being turned on, reset the system. After changing the engine oil, the system must be reset. To reset the CHANGE ENGINE OIL message use one of the following procedures: Using the Radio 1. Turn the ignition to ACC or ON, with the radio off. 2. Press and hold the TUNE DlSP button on the radio

for at least five seconds until SETTINGS is displayed.

3. Press the SEEK PSCAN up or down arrow to scroll

through the main menu.

4. Scroll until OIL LIFE appears on the display. 5. Press the 1 PREV or 2 NEXT buttons to enter the

subrrlerw. neae I wiii Lt: dispiay&.

-7n-7

6. Press the TUNE DlSP button to reset. A chime will

be heard to verify the new setting and DONE will be displayed for one second.

7. Once the indicator has been reset, scroll until EXIT

appears on the display.

8. Press the TUNE DlSP button to exit programming.

A chime will be heard to verify the exit.

Using the Accelerator Pedal 1. Turn the ignition to ON, with the engine off. 2. Fully press and release the accelerator pedal three times within five seconds. If the CHANGE ENGINE OIL message flashes, the system is reset. However, if it stays on, it did not reset. You’ll need to repeat the reset procedure. What to Do with Used Oil 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 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 tne trasn, pouring ir on ine grouna, 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.

5-2 1

Engine Air Cleaner/Filter Your vehicle has an engine air cleaner/filter located in the engine compartment on the driver’s side of the vehicle. See Engine Compartment Overview on page 5-72 for more information on location. To check or replace the engine air cleanedfilter do the following:

1. Loosen the two clips on the top of the engine air cleaner/filter housing and lift the filter cover tabs out of the housing.

2. Push the filter cover housing toward the engine. 3. Pull out the filter.

5-22

4. Check or install a new engine air cleanedfilter. See

Normal Maintenance Replacement Parts on page 5-99.

5. To reinstall the cover, position the tabs through the

slots on the housing. A notch on the sides of the filter cover will indicate the correct engagement. Reinstall the two clips on the top of the housing when you are finished.

Refer to the Maintenance Schedule to determine when to replace the air filter. See Scheduled Maintenance on page 6-4.

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 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/filter off.

Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine into your engine, which will damage the air cleaner/filter in place when you’re driving.

fire. And, dirt can easily get it. Always have

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:

In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter at 100,000 miles (166 000 km). See Scheduled Maintenance on page 6-4. 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 transaxle. Too much can mean that some of the fluid could come out and fall on hot engine or exhaust system parts, starting a fire. Too little fluid could cause the transaxle to overheat. Be sure to get an accurate reading if you check your transaxle fluid. 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. 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 tieft: v&kit: W ~ I I I I & up Ly urivirlg auoui i 5 miies (24 km) when outside temperatures are above 50°F (10°C). If it's colder than 50°F (lO"C), you may have to drive longer.

5-23

Checking the Fluid Level Prepare your vehicle as follows:

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 dipstick handle is the black loop near the rear of the engine compartment, toward the center. See Engine Companlment Overview on page 5-12 for more information on location.

1. 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.

3400 (Code E)

V6 Engine

3800 (Code K)

V6 Engine

5-24

3400 (Code E)

V6 Engine

3800 (Code K)

V6 Engine

3. Check both sides of the dipstick, and read the

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

4. If the fluid level is in the acceptable range, push the

dipstick back in all the way.

How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transaxle fluid to use. See Part D: Recommended Fluids and Lubricants on page 6-15. 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. 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.

Notice: We recommend you use only fluid labeled DEXRON@-Ill, because fluid with that label is made especially for your automatic transaxle. Damage caused by fluid other than DEXRON@-Ill is not covered by your new vehicle warranty. 3.

fiUL.d, fc;.c;-,t.c;i tilt. fluid it=“& i;18 described under “How to Check” earlier in this section.

a&cijy

4. When the correct fluid

level is obtained, push the

dipstick back in all the way.

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 or if you need to add coolant to your radiator, see Engine Overheating on page 5-28. A 50/50 mixture of clean, drinkable water and DEX-COOL@ coolant will:

Give freezing protection down to -34°F (-37°C). Give boiling protection up to 265°F (1 29°C). Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights and gages work as they should.

5-25

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. 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.

5-26

Adc g c p.-.n water to your coc ... -g 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 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, drinkable 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.

Checking Coolant

The coolant recovery tank is located between the power steering fluid reservoir and the underhood fuse block in the engine compartment on the passenger’s side of the vehicle. See Engine Compartment Overview on page 5- 12 for more information on location.

Turning the radiator pressure cap when the engine and radiator are hot can allow steam out and burn you and scalding liquids to ~ I Q W badly. With the coolant recovery tank, you will almost never have to add coolant at the radiator. Never turn the radiator 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 COLD mark or a little higher. When your engine is warm, the level should be up to the HOT mark or a little higher. Adding Coolant If you need more coolant, add the proper DEX-COOL@ coolant mixture at the coolant recovery tank, but be careful not to spill it. If the coolant recovery tank is completely empty, add caolafit to the radiatc;. See E,7ghe Overheathg on page 5-28.

- -u can be burnec .. you : engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts ?re hn!

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

:oolant on hot

Occasionally check the coolant level in the radiator. For information on how to add coolant to the radiator, see Zooiing System on page M i .

5-27

Radiator Pressure Cap

Notice: Your radiator cap is a pressure-type cap and must be tightly installed to prevent coolant loss and possible engine damage from overheating. Be sure the arrows on the cap line up with the overflow tube on the radiator filler neck. The radiator pressure cap is located in the front of the engine compartment on the passenger’s side, near the diagonal cross brace. See Engine Compartment Overview on page 5-12 for more information on location. Engine Overheating You will find a coolant temperature gage and a warning message about a hot engine on your instrument panel cluster. See Engine Coolant Temperature Gage on page 3-33 and Hot Coolant Temperature Warning Message on page 3-4 1.

Overheated Engine Protection Operating Mode This emergency operating mode allows your vehicle to be driven to a safe place in an emergency situation. If an overheated engine condition exists, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. In this mode, you will notice a significant loss in power and engine performance. The low coolant light may come on and the temperature gage will indicate an overheat condition exists. Driving extended miles (km) and/or towing a trailer in the overheat protection mode should be avoided. 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, change the oil and reset the oil life system. See “Engine Oil” in the Index.

5-28

If Steam Is Coming From Your Engine

S_-Jm from an overheated engine can ,,rn 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)

n the vehicle until it

everyone awa I coolsdown. 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” in the Index for information on driving to a safe place in an emergency.

Nofice: If your engine catches fire because you 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” in the Index for information on driving to a safe place in an emergency.

5-29

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, you can idle the engine for 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.

If No Steam Is Coming From Your Engine An overheat warning along with a low coolant message can indicate a serious problem. If you get an engine overheat warning, but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you:

Climb a long hill on a hot day. Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer.

If you get the overheat warning with no sign of steam, try this for a minute or so:

1. In heavy traffic, let the engine idle in NEUTRAL (N) while stopped. If it is safe to do so, pull off the road, shift to PARK (P) or NEUTRAL (N)I and let the engine idle.

2. Turn on your heater to full hot at the highest fan

speed and open the window as necessary.

5-30

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

A. 2. C.

Coolant Recovery Tank l-l?.-+”:- L I c b u IL, L I IYII IC UUUIII ly ral I Radiator Cap

I-“.-:--

I--.-

/---I:--.

3800 V6 Engine

A. Coolant Recovery Tank B. Electric Engine Cooling Fan ’2. Radiator Pressure Cap

5-31

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 tools away from any underhood electric fan.

If the coolant inside the coolant recovery 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 COLD mark on the coolant recovery tank. To check the coolant level, look for the COLD mark on the side of the coolant recovery tank that faces the engine.

5-32

Check to make sure that the coolant level is up to the COLD fill level on the side of the coolant recovery tank. 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.

I 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 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.

leak. If you run

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.

Notice: Engine damage from running your engine without coolant isn’t 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: 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. How to Add Coolant to the Coolant Recovery Tank

If you haven’t found a problem yet, but the coolant level isn’t at the COLD mark, add a 50/50 mixture of clean, drinkable water and DEX-COOL@ engine coolant at the coolant recovery tank. See Engine Coolant on page 5-25 for more information.

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 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, drinkable water and DEX COOL@ coolant.

Notice: In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant and the proper rm!=lnt rr?Ix?L!re.

5-33

5-34

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 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.

5-35

How to Add Coolant to the Radiator Notice: Your engine has a specific radiator fill procedure. Failure to follow this procedure could cause your engine to overheat and be severely damaged.

1. You can remove the radiator pressure cap when

the cooling system, including the radiator pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly counterclockwise until it first stops. (Don’t press down while turning the pressure cap.) If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left.

The radiator pressure cap is located in the front of the engine compartment on the passenger’s side of the vehicle, near the diagonal cross brace. See Engine Compartment Overview on page 5-12 for more information on location.

2. Then keep turning the pressure cap, but now push

down as you turn it. Remove the pressure cap.

5-36

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. If you have the 3800 V6 engine, remove the

3800 Series II V6 engine cover shield to access the bleed valve.

A. Clean the area around the engine oil fill tube and

cap before removing. Twist the oil fill tube, with cap attached, counterclockwise and remove it.

6. Lift the engine cover shield at the front, slide the catch tab out of the engine bracket and remove ii1e cover shieia.

C. Put the oil fill tube, with cap attached, in the valve cover oil fill hole until you’re ready to replace the cover shield.

5-37

4. After the engine cools, open the coolant air bleed

valve or valves. 3400 V6 engine: There are two bleed valves. One is located on the thermostat housing. The other is located on the thermostat bypass tube. 3800 V6 engine: There is one bleed valve. It is located on the thermostat housing.

~~ 3400 V6 Bleed Valve #1

3400 V6 Bleed Valve #2

3800 V6 Bleed Valve

5-38

5. Fill the radiator with the proper DEX-COOL@

coolant mixture, up to the base of the filler neck. See Engine Coolant on page 5-25 for more information about the proper coolant mixture.

If you see a stream of coolant coming from an air bleed valve, close the valve. Otherwise, close the valves after the radiator is filled.

6. Rinse or wipe any spilled coolant from the engine

and the compartment.

7. If you have the 3800 V6 engine, replace the

3800 Series II V6 engine cover shield.

7.1. Remove the oil fill tube, with cap attached,

from the valve cover.

7.2. Insert the catch tab on the cover shield

under the bracket on the engine.

7.3. Place the hole in the cover shield over the

hole in the valve cover. install oil fill tube and cap by twisting clockwise.

8. Then fill the coolant recovery tank to the

COLD mark.

9. Put the cap back on the coolant recovery tank, but

leave the radiator pressure cap off.

5-39

10. Start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fans.

11. By this time, the coolant level inside the radiator filler neck may be lower. If the level is lower, add more of the proper DEX-COOL@ coolant mixture through the filler neck until the level reaches the base of the filler neck.

12. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. Be sure the arrow on the pressure cap lines up like this.

13. Check the coolant in the recovery tank. The level in

the coolant recovery tank should be at the HOT mark when the engine is hot or at the COLD mark when the engine is cold.

5-40

Power Steering Fluid The power steering fluid reservoir is located toward the rear of the engine compartment, on the passenger’s side of the vehicle.

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- 12 for reservoir location. How to Check Power Steering Fluid Turn the key off, let the engine compartment cool down, 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. When the 3400 V6 engine compartment is hot, the level should be at the H (hot) mark. When it’s cold, the level should be at the C (cold) mark. If the fluid is at the ADD mark, you should add fluid. For the 3800 V6 engine, the level should be at the HOT mark when the engine compartment is hot. If the fluid is at the ADD mark, you should add fluid.

5-4 1

Adding Washer Fluid

LOW

WASHER FLUID

Canada

United States

When this message is displayed, it means the vehicle is low on windshield washer fluid. You should add more windshield washer fluid soon.

Open the cap with the washer symbol on it. Add washer fluid until the tank is full.

What to Use To determine what kind of fluid to use, see Part D: Recommended Fluids and Lubricants on page 6-15. 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.

5-42

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) in your windshield washer. It can damage your washer system and paint.

Brakes Brake Fluid

Your brake master cylinder reservoir is on the driver’s side of the engine compartment. It is filled with ECT-2 kska :!;id. SZZ LTc$x CciiiE1Jldit/it.iri Gvef view on page 5- 12.

5-43

When your brake fluid falls to a low level, your brake warning light will come on. See Brake System Warning Light on page 3-31. 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 Part D: Recommended Fluids and Lubricants on page 6- 15. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This will help keep dirt from eni

’ng the reservoir.

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.

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 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. If you add fluid 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 brak

‘lydraulic system.

5-44

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.

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 vour vehicle is moving (except when you are pushing on the brake pedal firmly).

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.

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 prcp~r y n ~ r o n r o G!! Brake linings should always be replaced as complete axle sets. See Brake System Inspection on page 6- 14.

s;ecificsticzs.

I-’-..--

5-45

Battery Your new vehicle comes with a maintenance free ACDelco@ battery. When it’s 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- 72 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 apply the brakes, with or without the vehicle moving, your brakes adjust for wear. Replacing Brake System Parts The braking system on a vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Your vehicle was designed and tested with top-quality GM brake parts. When you replace parts of your braking system - for example, when your brake linings wear down and you need new ones put in - be sure you get new approved GM replacement parts. If you 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.

5-46

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.

Jump Starting If your battery has run down, you may want to use another vehicle and some jumper cables to start your vehicle. Be sure to follow the steps below to do it safely.

B a L . ies have acid that can bG. .. you and gas that can explode. You can be badly hurt if you aren’t careful. See “Jump Starting” next 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 (RDS Radios) on page 3-75.

Batteries can hurt ! J. They can be dangerous because:

They contain acid that can burn you. They contain gas that can explode or ignite. They contain enough electricity to burn you.

If you don’t follow these steps exactlv. some

- .- .. --. .=. . -. .. .I. Nntirrr- lrsnnrinrs thacn steps C S Z ! ~ psz!! damage to your vehicle that wouldn’t be covered by your warranty. Trying to start your vehicle by pushing or pulling it won’t work, and it could damage your vehicle.

.w--

ccst!.~

5-47

Notice: If the other system isn’t a 12-volt system with a negative ground, both vehicles can be damaged.

1. Check the other vehicle. It must have a 12-volt

battery with a negative ground system.

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 transaxle in PARK (P) or a manual transaxle in NEUTRAL before setting the parking brake.

Notice: If you leave your radio on, it could be badly damaged. The repairs wouldn’t be covered by your warranty. 3. Turn off the ignition on both vehicles. Unplug

unnecessary accessories plugged into the cigarette lighter or in the 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!

4. Open the hoods and locate the batteries. Find the positive (+) and negative (-) terminal locations on each vehicle.

5-48

You will not need to access your battery for jump starting. Your vehicle has a remote positive (+) jump starting terminal for that purpose. The remote positive (+) terminal is located in the engine compartment on the passenger’s side of the vehicle, next to the upper underhood fuse block. See Engine Compartment Overview on page 5-12 for more information on location.

To uncover the remote positive (+) terminal, lift the plastic cap. You should always use the remote positive (+) terminal instead of the positive (+) terminal on the battery.

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

Battery fluid con. ns acid that can burn you. Don’t 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.

can cause batt,. I

Using a match near a b,.iery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the battery has enough water. You don’t 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 don’t, explosive gas could be present.

CAUTION:

(Continued)

Fans or other moving engine parts can injure you badly. Keep your hands away from moving parts once the engine is running.

5. Check that the jumper cables don’t have loose or

missing insulation. If they do, you could get a s i luck. Ti le veilicies wuiu be uamayeci, 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.

5-49

Don’t connect positive (+) to negative (-), or you’ll get a short that would damage the battery and maybe other parts, too. And don’t connect the negative (-) cable to the negative (-) terminal on the dead battery because this can cause sparks.

6. Connect the red positive (+) cable to the positive (+)

terminal location of the vehicle with the dead battery. Use a remote positive (+) terminal if the vehicle has one.

5-50

7. Don’t let the other end touch metal. Connect it to the positive (+) terminal location of the vehicle with the good battery. Use a remote positive (+) terminal if the vehicle has one.

8. Now connect the black negative (- ) cable to the negative (- ) terminal location of the vehicle with the good battery. Use a remote negative (-) terminal if the vehicle has one.

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 part or to a remote negative (-) terminal on the vehicle with the dead battery.

9. Connect the other end of the negative (-) cable at

least 18 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, and the chance of sparks getting back to the battery is much less.

10. Now start the vehicle with the good battery and run

the engine for a while.

11. Try to start the vehicle that had the dead battery. If

it won’t start after a few tries, it probably needs service.

Notice: Damage to your vehicle may result from electrical shorting if jumper cables are removed incorrectly. To prevent electrical shorting, take care that the cables don’t touch each other or any other metal. The repairs wouldn’t be covered by your warranty.

5-51

To disconnect the jumper cables from both vehicles, do the following:

1. Disconnect the black negative (-) cable from the

vehicle that had the dead battery.

2. Disconnect the black negative (-) cable from the

vehicle with the good battery.

3. Disconnect the red positive (+) cable from the

vehicle with the good battery.

4. Disconnect the red positive (+) cable from the other

vehicle.

5. Return the remote positive (+) terminal cover to its

original position.

B\

Jumper Cable Removal

A. Heavy, Unpainted Metal Engine Part B. Good Battery or Remote Positive (+) Terminal C. Dead Battery or Remote Positive (+) Terminal

5-52

Headlamp Aiming If your vehicle is damaged in an accident, the headlamp for aim may be affected. Aim may be necessary if it is difficult to see lane markers (for manual for your vehicle. horizontal aim), or if oncoming drivers flash their high beams at you (for vertical aim).

adjustment to the low beam headlamps

If you believe your headlamps need recommend that you take your vehicle to the dealer

re-aimed, we service. However, it is possible for YOU to re-aim your

be

to

by following the procedure in the service

5-53

Bulb Replacement For the proper type of replacement bulb, see Replacement Bulbs on page 5-57. For any bulb changing procedure not listed in this section, contact your dealer. Halogen Bulbs

1 dl CAUTION:

Halogen bulbs have pressL..led 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.

5-54

Headlamps, Front Turn Signal, Sidemarker, and Parking Lamps

A. High-Beam Headlamp B. Low-Beam Headlamp C. Parkingnurn Signal and Sidemarker Lamp 1. Open the hood. 2. Remove the air baffle.

3. Remove the two headlamp fasteners by pulling up

on them.

4. Gently pull the headlamp assembly away from the

vehicle and remove the electrical connector.

5. Remove the round dust caps to gain access to

the bulbs.

7.

6. Turn the bulb counterclockwise and remove it from the retaining ring by gently pulling it away from the headlamp assembly. Remove the electrical connector from the bulb by raising the lock tab and pulling the connector away from the bulb’s base. install the electrical connector to the new bulb. Install the new bulb by inserting the smallest tab on the bulb base into the matching notch in the retaining ring. Turn the bulb a quarter-turn clockwise until it stops. Reverse Steps 1 through 5 to reinstall the headlamp assembly.

8. 9.

10.

5-55

Taillamps, Turn Signal, Stoplamps and Sidemarker Lamps

4. Unscrew the two

remaining wing nuts.

A. Rear Sidemarker Lamp B. Taillamp/Stoplamp C. Turn Signal Lamp 1. Open the trunk. If your vehicle h

as a conv

enience

net, unhook the net from the upper wing nut.

2. Remove the nut and convenience 3. Pull the carpet away from the rear of the vehicle.

net.

5-56

5. Pull the assembly from the body carefully. 6. To remove a socket, turn it counterclockwise and

pull it out.

7. Pull the bulb out. Do not twist it. 8. Push the new bulb into the socket. 9. Push the socket back into the assembly. Tighten

the socket by turning it clockwise.

10. Reinstall the assembly and the two lower wing nuts. Make sure that the wires are not pinched between the body of the vehicle and the mounting screws.

11. Reinstall the carpeting. 12. Reinstall the upper (convenience net) wing nut and

reattach convenience net, if equipped.

Back-up Lamps The back-up lamps are located in the rear bumper. 1. Open the trunk. 2. Remove the two screws. 3. Pull the assembly from the body of the vehicle. 4. To remove a socket, turn the socket

counterclockwise and pull it out.

Replacement Bulbs . Back-up

Exterior Lamps

Front ParMurn Signal Lamps Front Sidemarker 194

Bulb Number 92 1 3357NAK or 3457NAK

5. Pull the old bulb out. Do not twist it. 6. Push the new bulb into the socket. 7. Push the socket back

the socket by turning it clockwise.

into the assembly. Tighten

8. Reinstall the assembly with the two screws.

5-57

Windshield Wiper Blade Replacement Windshield wiper blades should be inspected at least twice a year for wear or cracking. See “Windshield Wipers, Blade Check” under At Least Twice a Year on page 6-10 for more information. Replacement blades come in different types and are removed in different ways. For proper type and length, see Normal Maintenance Replacement Parts on page 5-99. Here’s how to remove the wiper blades:

1. Turn on the wipers to the low wipe setting. 2. Turn off the ignition while the wipers are at the outer positions of the wiper pattern. The blades are more accessible for removal/replacement while in this position.

3. Pull the windshield wiper arm away from the

windshield.

5-58

4. While holding the wiper arm away from the glass,

push the release clip from under the blade connecting point and pull the old blade assembly down toward the glass to remove it from the wiper arm.

5. Push the new wiper blade securely on the

wiper arm until you hear the release clip “click” 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 Chevrolet Warranty booklet for details.

Poorly maintained a--- ____ r-’op-..y 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.

CAUTION:

(Continued)

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. Worn, old tires can cause accidents. If your tread is badly worn, or if your tires have been damaged, replace them.

5-59

Inflation -- Tire Pressure

The Tire-Loading Information label, which is on the inside of the trunk lid, 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). Nofice: 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:

Too much flexing Too much heat Tire overloading Bad wear Bad handling Bad fuel economy

If your tires have too much air (overinflation), you can get the following: * Unusual wear Bad handling Rough ride Needless damage from road hazards

5-60

When to Check Check your tires once a month or more. Don’t forget your compact spare tire. It should be at 60 psi (420 kPa). 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. Tire Pressure Monitor System Your vehicle may have the tire pressure monitor system that can alert you to a large change in the pressure of one tire. The system “learns” the pressure for each tire throughout the operating speed range of your vehicle. The system normally takes between 45 and 90 minutes of driving to learn the tire pressures. This time may be longer depending on your individual driving habits. Learning need not be accumulated during a single trip. Once learned, the system will remember the tire pressures until the system is recalibrated.

After the system has learned tire pressures with properly inflated tires, the LOW TIRE PRESSURE message will come on if the pressure in one tire becomes 12 psi (83 kPa) lower than the other three tires. The tire pressure monitor system won’t alert you if the pressure in more than one tire is low, if the system is not properly calibrated, or if the vehicle is moving faster than 70 mph (1 10 km/h). The tire pressure monitor system detects differences in tire rotation speeds that are caused by changes in tire pressure. The system can alert you about a low tire - but it doesn’t replace normal tire maintenance. See Tires on page 5-59. When the LOW TIRE PRESSURE message comes on, you should stop as soon as you can and check all your tires for damage. (If a tire is flat, see If a Tire Goes Flat on page 5-68.) Also check the tire pressure in all four tires as soon as you can. See lnflation -- Tire Pressure on page 5-60. The LOW TIRE PRESSURE message will also be .--+:I ..-. . . - - - -& Aie.,lq,,,-,,-I U I u y I u y C I u \ V V l 1 1 1 b LI I C lyl l l L l W l I 1 3 VI 1 ) UI 1111 yuu I GPGL (calibrate) the system. Don’t reset the tire pressure monitor system without first correcting the cause of the problem and checking and adjusting the pressure in all four tires. If you reset the system when the tire pressures are incorrect., the system will not work properly and may not alert you when a tire is low.

/,“,h;In +hn :m..:+:n-

:- --\

Any time you adjust a tire’s pressure, rotate your tires, or have one or more tires repaired or replaced, you’ll need to reset (calibrate) the tire pressure monitor system. You’ll also need to reset the system whenever you buy new tires and whenever the vehicle’s battery has been disconnected. To reset (calibrate) the system: The tire pressure monitor system can be reset by turning the exterior lamp control from OFF to parking lamps three times while the ignition is in ON. It can also be reset through the radio using the following steps: 1. Turn the ignition to ACC or ON and turn the

radio off.

2. Press and hold the TUNE DlSP button on the radio

for at least five seconds until SETTINGS is displayed.

3. Press the SEEK PSCAN up or down arrow to scroll

through the main menu.

4. Scroll until TIRE MON appears on the display. 5. Press the 1 PREV or 2 NEXT button to enter the

P I lhrnrrns 1 RCCCT ~ ~ n ; “UUl I I”, IU. I ILUL I

V V l l l U G u l a p l a y c u .

eJ:e-l-* * - A

6. Press the TUNE DlSP button to reset. A chime will

be heard to verify the new setting and DONE will be displayed for one second.

7. Once the monitor has been reset, scroll until EXIT

appears on the display.

8. Press the TUNE DlSP button to exit programming.

A chime will be heard to verify exit.

5-61

The system completes the calibration process during driving. The system normally takes 15 to 20 minutes of driving in each of three speed ranges to ”learn” tire pressures. The speed ranges are 15 to 40 mph (25 to 65 km/h), 40 to 65 mph (65 to 105 km/h) and above 65 mph (105 km/h). When learning is complete, the system will alert you after two to eight minutes if a tire is 12 psi (83 kPa) different from the other three tires. Detection thresholds may be higher and detection times may be longer on rough roads, curves and at high speeds. The system is not capable of detection at speeds greater than 70 mph (1 10 km/h). Tire Inspection and Rotation Tires should be rotated every 7,500 miles (12 500 km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See When It Is Time for New Tires on page 5-63 and Wheel Replacement on page 5-66 for more information.

5-62

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 “Part A: Scheduled Maintenance Services,” in Section 6, for scheduled rotation intervals.

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

Reset the Tire Inflation Monitor System. See Tire Pressure Monitor System on page 5-60. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” under Capacities and Specifications on page 5-97.

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 It Is 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. 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.

5-63

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 a 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.

5-64

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.

5 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.

Uniform Tire Quality Grading Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration, 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 YqLirCKefits gfie g&-ji;iGfiz; Gzfiei'& ;&jtfii-5 Tire Performance Criteria (TPC) standards.

Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1.5) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

Traction - AA, A, B, C

The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornermg, hydroplaning, or peak traction characteristics.

5-65

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 carefully 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.

5-66

If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts and wheel nuts for your vehicle.

Used Replacement Wheels

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

Notice: The wrong wheel can also cause problems wiih bearing iiie, brake cooiing, speeaometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance and tire or tire chain clearance to the body and chassis. See Changing a Flat Tire on page 5-68 for more information.

-Ring a usec .rheel 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 a crash. If you have to replace a wheel, use a new GM original equipment wheel.

Tire Chains

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 vsith chains on will damage your vehicle.

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If a Tire Goes Flat It’s unusual for a tire to “blow out” while you’re driving, especially if you maintain your tires properly. If air goes out of a tire, it’s much more likely to leak out slowly. But if you should ever have a “blowout”, here are a few tips about what to expect and what to do: If a front tire fails, the flat tire will create a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop well out of the traffic lane. A rear blowout, particularly on a curve, acts much like a skid and may require the same correction you’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 Flat Tire If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place. Turn on your hazard warniV -- flashers.

Changing a tire can cause an i rry. 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. Set the parking brake firmly. 2. Put the shift lever in PARK (P). 3. Turn 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.

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Removing the Spare Tire and Tools The equipment you’ll need is in the trunk.

1. Turn the center nut on the compact spare tire cover counterclockwise to remove it. Then remove the cover.

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2. Remove the compact spare tire. See “Compact

Spare Tire” later in this section for more information about the compact spare tire.

3. Turn the nut holding the jack counterclockwise and

remove it. Then remove the jack and wrench.

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Removing the Wheel Covers and the Wheel Nut Caps Removing the Wheel Cover Caps

Your vehicle may have center caps if equipped with aluminum wheels. To remove a center cap use the wrench to pry gently at the notch. Don’t use a tool that is narrower than the wrench to pry at this notch.

4. The tools you’ll be using include the jack (A) extension and protector/guide (B) and wheel wrench (C).

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Removing the Flat Tire and Installing the Spare Tire

Removing the Wheel Covers

If your vehicle is equipped with wheel covers, loosen the plastic nut caps with the wheel wrench. If needed, you can finish loosening them with your fingers. Then, using the flat end of the wheel wrench, pry along the edge of the cover until it comes off.

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

Don’t remove them yet.

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I

Getting under a vehick Nhen 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.

A n

I\

r i r r I -

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.

Jack placement for a front tire

The diagram shows you where you should place your jack to change a front tire. Use the bolts (A) as a guide when positioning the jack lift head (C) near the rear edge of the front wheel opening (B). For jacking at the vehicle's front location, put jack lift