Page 289 of 335
6-35
4. Remove the headlamp housing socket.5. After removing the wiring harness from the
headlamp housing socket, replace the bulb and
socket. Reconnect it to the wiring harness and
reinstall the headlamp housing socket back into the
headlamp assembly.
Page 290 of 335
6-36 Front Turn Signal Lamps
1. The turn signal lamps are located on the outboard
side of the headlamps. To access them, turn the lock
tabs on the headlamp cover in the direction of the
arrows and then lift off the cover. (See Steps 1 and
2 under ªHeadlampsº listed previously.)
2. Turn the housing socket counterclockwise to unlock
the socket from the lamp housing.
3. Remove the turn signal lamp housing socket and
replace the bulb.
Reverse Steps 1 through 3 to reassemble.
Page 301 of 335

6-47
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 vehicle.
CAUTION:
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 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 ªChanging a Flat Tireº in the Index for
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 an accident. If you have to replace a
wheel, use a new GM original equipment wheel.
Page 312 of 335

6-58
Electrical System
Add-On Electrical Equipment
NOTICE:
Don't add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and the damage wouldn't be covered by your
warranty. Some add
-on electrical equipment can
keep other components from working as
they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see ªServicing
Your Air Bag
-Equipped Vehicleº in the Index.
Headlamp Wiring
The headlamp wiring has an individual fuse which is
powered by a MaxiFuse. An electrical overload will
cause the lamps to go on and off, or in some cases to
remain off. If this happens, have the headlamp wiring
checked right away.
Windshield Wiper Fuses
The windshield wiper motor is powered by a
MaxiFuse. If the motor overheats due to heavy snow,
etc., the wipers will stop until the motor cools. If the
overload is caused by some electrical problem, be sure
to have it fixed.
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 fixed or goes away.
Page 314 of 335
6-60
MaxiFuse
(8
-Way) Usage
BODY 3 Controlled Power Relay,
Controlled Power Back
-Up Relay,
Cluster Fuse, Passenger Zone
Module (PZM) Fuse, Radio Fuse,
RAP Relay, Trunk and Fuel Door
Release Relay, High
-Beam Relay,
Comfort Fuse, AMP Fuse
(Optional), Right and Left Bose
Relay (Optional)
INADVERT Inadvertent Power Relay, Interior
Lamps Fuse, Cigarette Lighter
-1
Fuse, Courtesy Lamp Relay
LAMPS Headlamps Fuse/Relay, High/Low
Beam Control Relay, Fog Lamp
Fuse, DRL Fuse, Hazard Fuse,
Mirror Fuse, Inadvertent Power
Relay, Right and Left High
-Beam
Fuse, Right and Left Low
-Beam
Fuse, Stoplamp Fuse, Fog Lamp
Relay, DRL RelayMaxiFuse
(8
-Way) Usage
IGN 1 Rear Ignition
-1 Relay, Wiper
Fuse, Relay Ignition
-1 Fuse,
Supplemental Inflatable Restraint
(SIR) Fuse, Accessory Relay
WINDOWS Retained Accessory
Power (RAP) Relay
SEATS Horn Relay, Driver and Passenger
Lumbar In/Out Relays,
Driver and Passenger Lumbar
Up/Down Relays
Page 315 of 335
6-61
MaxiFuse
(6
-Way) Usage
BATT 3 Steering Column Ignition Switch
BATT 2 Steering Column Ignition Switch
IGN 1 Front Ignition
-1 Relay, Oxygen
Sensor 1 and 2 Fuse, Fuel Fuse,
Cruise Fuse, Fuel Pump Relay
BATT 1 Starter Relay and Solenoid,
Park/Reverse Fuse, Park Relay,
Powertrain Control Module
(PCM) Fuse, AC Compressor Fuse
and Relay, Fan Relays,
Reverse Relay
BRAKES Anti
-Lock Brake System (ABS)
Brake Modulator
COOL FNS Cooling Fan Relays 1 and 3Power
Distribution
BlockUsage
DRL Daytime Running Lamps (DRL)
HI/LO BEAM High and Low
-Beam Headlamps
HORN Horn
FOG LPS Fog Lamps
ACCESSORY Accessories
HEAD LPS Headlamps
Relays
INADVERT POWER RELAY
IGN 1 RELAY
STARTER RELAY
Page 317 of 335
6-63
Fuse Usage
CNR LPS Cornering Lamp Switch, Right
and Left Cornering Lamps
INT LPS Trunk Lamp, Courtesy Lamps,
Front Vanity Lamps, Glove Box
Lamp, Garage Door Opener,
Courtesy Lamp Relay
CIG LTR1 Front and Rear Cigarette LightersFuse Usage
L HDLP LO Left Low
-Beam Headlamp
R HDLP LO Right Low
-Beam Headlamp
L HDLP HI Left High
-Beam Headlamp
R HDLP HI Right High
-Beam Headlamp
FOG Fog Lamp Relay, Right and Left
Fog Lamps, Headlamp Switch
HDLPS Headlamp Relay, High/Low
-Beam
Control Relay, Right and Left
Low/High
-Beam Fuses
HAZARD Electronic Flasher Module,
Turn/Hazard Switch, Right and
Left Front Turn Lamps, Right and
Left Rear Turn Lamps, Cluster
STOP Stoplamp Switch, Centered
High
-Mounted Stoplamp
(CHMSL), Turn Hazard Switch,
ABS Controller, Stepper Motor
Cruise Control
MIRROR Inadvertent Power Relay, Left
Outside Rearview Mirror Switch,
ALDL, Memory Mirror Module,
Dimmer Switch, Cluster
Page 320 of 335

6-66
Fuse Usage
RADIO/PHONE Radio Receiver, Radio Interface
Module (RIM) (Optional), Phone,
RAP Relay, Trunk Release Relay,
Fuel Door Release Relay,
High/Low
-Beam Relay
CLUSTER Steering Wheel Controls, Cluster
ACC PZM, Electrochromic Mirror,
Rain Sensor (Optional),
Accessory Relay
HTD MIR Right and Left Outside
Heated Mirror
HTD SEAT R Passenger Heated Seat
Relay (Optional)
HTD SEAT L Driver Heated Seat
Relay (Optional)
PULL DOWN Trunk Pull
-Down Motor
ANTENNA Power Mast Antenna
RSS Damper Relay (ETC Only)Fuse Usage
CONVENC Trunk Release Relay, Trunk
Release Solenoid, Fuel Door
Release Relay, Fuel Filler Door
Release Solenoid, Door Lock
Relay, Left and Right Door
Motors, PZM, Door Unlock Relay
BATT Driver and Passenger Seat Lumbar
Switch (Optional), Driver and
Passenger Seat Belt Comfort
Solenoid, Memory Seat
Module (Optional)
RSS Road Sensing Suspension (RSS)
Module (ETC Only)
RT PARK Headlamp Switch, Right Front
Parking Lamp, Right Front and
Rear Sidemarker Lamps,
Right Turn/Stop/Tail Lamps
LT PARK Left Front and Rear Sidemarker
Lamps, Left Front Parking Lamp,
Left Turn/Stop/Tail Lamps,
Right and Left License Lamps,
Underhood Lamp