Page 272 of 374
To replace the headlamp, turn signal, or parking lamp
bulb, do the following:
1. Open the hood and locate the lamp assembly.2. Remove the rubber cover and socket from the
headlamp or turn signal/parking lamp.
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Page 273 of 374
3. Release the retainer clip holding the bulb on the
headlamp by pressing down and moving the
metal retainer away from you.
Turn the turn signal/parking lamp bulb socket
counterclockwise to remove.
4. Pull the bulb out of the xture.
5. Reverse the steps to install a new bulb.
Center High-Mounted Stoplamp
(CHMSL)
To replace the center high-mounted stoplamp bulb,
do the following:
1. Locate the bulb which is on the inside of the
liftgate/liftglass near the top.
2. Remove the two clips on both sides of the cover
and remove it.
3. Remove the two screws from the CHMSL housing.
Then remove the housing to expose the bulb.
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Page 277 of 374
2. Turn the bulb socket
counterclockwise and
pull it out of the
lamp housing.
3. Pull the bulb straight out of the socket.
4. Reverse the previous steps to install a new bulb.Replacement Bulbs
Exterior Lamp Bulb Number
Back-Up Lamp 7440
CHMSL 921
Front Turn Signal and
Parking Lamp1157NA
Headlamp High/Low-Beam 9003
Rear Turn Signal 7440
Stoplamp/Taillamp 7443
For replacement bulbs not listed here, please consult
your dealer.
5-55
Page 295 of 374

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.
SeeChanging a Flat Tire on page 5-75for more
information.
Used Replacement Wheels
{CAUTION:
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 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 for front-wheel-drive vehicles.
If your vehicle has all-wheel-drive, install the
tire chains on the front or all four tires but never
on the rear tires only. 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.
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Page 318 of 374

Headlamp Wiring
The headlamp wiring is protected by a circuit breaker.
An electrical overload will cause the lamps to go on and
off, or in some cases to remain off. If this happens,
have your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow or ice, the wiper will stop until the motor cools.
If the overload is caused by some electrical problem,
and not snow or ice, be sure to get it xed.
Power Windows and Other
Power Options
Circuit breakers protect the power windows and other
power accessories. When the current load is too heavy,
the circuit breaker opens and closes, protecting the
circuit until the problem is xed or goes away.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by fuses, circuit breakers and fusible
thermal links in the wiring itself. This greatly reduces the
chance of res caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the correct size.
If you ever have a problem on the road and don’t
have a spare fuse, you can borrow one. Just pick
some feature of your vehicle that you can get along
without – like the radio or air conditioner – and use its
fuse, if it is of the value you need. Replace it as soon as
you can.
Before replacing a fuse, turn every electrical switch off.
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Page 321 of 374

Fuses Usage
RDI FAN Electric Cooling Fan
ABS NO. 1Anti-lock Brake System
(With Stability Control System)
FOG Front Fog Lamps
EFI2Multiport Fuel Injection System/
Sequential Multiport Fuel Injection
System, Emission Control System
EFI3Multiport Fuel Injection System/
Sequential Multiport Fuel Injection
System, Emission Control System
HEAD MAINRight Headlamp, Left Headlamp
Fuses
ALT-S Charging System
EFI Electronic Fuel Injection System
HAZARDTurn Signal Lamps, Emergency
Flasher
HORN Horn
DOMEInterior Lights, Gauges and Meters,
Audio System, Remote Keyless Entry
System, Navigation System
(If Equipped)Fuses Usage
MAIN Starter System, AM2 Fuse
AMP Audio System
MAYDAY OnStar
®System
ALTABS NO.1, ABS NO.2, RDI FAN,
FOG, Heater, AM1, POWER, DOOR,
ECU-B, TAIL, STOP, P/POINT, INV,
OBD Fuses, Charging System
HEAD RHRight-hand Headlamp, Headlamp
High Beam Indicator Lamp
HEAD LH Left-hand Headlamp
Relays Usage
M/G M/G
HEAD Headlamps
DIMMER Headlamp Dimmer
FAN NO. 2 Cooling Fan System
FAN NO. 1 Cooling Fan System
EFI Electronic Fuel Injection System
FOG Fog Lamps
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Page 362 of 374

Audio System(s).............................................3-42
Care of Your CD Player...............................3-65
Care of Your CDs........................................3-64
Fixed Mast Antenna.....................................3-65
Navigation/Radio System..............................3-64
Radio with CD............................................3-43
Radio with Six-Disc CD................................3-53
Setting the Time..........................................3-42
Understanding Radio Reception.....................3-64
XM™ Satellite Radio Antenna System............3-65
Automatic Headlamp System............................3-15
Automatic Transaxle
Fluid..........................................................5-23
Operation...................................................2-22
B
Battery..........................................................5-42
Before Leaving on a Long Trip.........................4-23
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-9
Panic Assist................................................4-11
Parking......................................................2-28
System Inspection.......................................6-18
System Warning Light..................................3-32Brakes..........................................................5-39
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-17
Bulb Replacement...........................................5-49
Back-Up Lamps...........................................5-54
Center High-Mounted Stoplamp (CHMSL)........5-51
Halogen Bulbs............................................5-49
Headlamps, Front Turn Signal, and
Parking Lamps.........................................5-49
Replacement Bulbs......................................5-55
Taillamps, Turn Signal, and Stoplamps............5-53
Buying New Tires...........................................5-70
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Speci cations..........................5-100
Carbon Monoxide...................2-11, 2-32, 4-26, 4-40
Care of
Safety Belts................................................5-90
Your CD Player...........................................3-65
Your CDs ...................................................3-64
Cargo Cover..................................................2-39
2
Page 365 of 374

E
Electrical System
Add-On Equipment......................................5-95
Engine Compartment Fuse Block...................5-98
Fuses and Circuit Breakers...........................5-96
Headlamp Wiring.........................................5-96
Instrument Panel Fuse Block.........................5-97
Power Windows and Other Power Options......5-96
Windshield Wiper Fuses...............................5-96
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-42
Check and Service Engine Soon Light............3-35
Coolant......................................................5-28
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-35
Cooling System Inspection............................6-18
Engine Compartment Overview......................5-12
Exhaust.....................................................2-32
Oil .............................................................5-16
Overheating................................................5-30
Starting......................................................2-19
Entry Lighting.................................................3-16
Event Data Recorders (EDR)............................. 7-9
Extender, Safety Belt.......................................1-25
Exterior Lamps...............................................3-13
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-93
Fixed Mast Antenna........................................3-65
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-75
Flat Tire, Storing.............................................5-84
Floor Mats.....................................................2-38
Fluid
Automatic Transaxle.....................................5-23
Manual Transaxle........................................5-26
Power Steering...........................................5-37
Windshield Washer......................................5-38
Fog Lamps....................................................3-15
Folding Seatback, Passenger............................. 1-5
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-41
Gasoline Octane........................................... 5-5
5