Page 440 of 556
Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your dealer.
SeeReplacement Bulbs on page 5-60for the proper
types of bulbs to use.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside
and can burst if you drop or scratch the bulb.
You or others could be injured. Be sure to read
and follow the instructions on the bulb
package.
Headlamps
1. Your vehicle is equipped with two pins, remove
the two pins on the top of the headlamp assembly.
To remove the pins, turn the outer pin outward
and pull it straight up. To remove the inner pin,
turn it in and pull it straight up.
5-54
Page 441 of 556
A. Low-Beam Headlamp B. High-Beam Headlamp2. Pull the headlamp assembly out.
3. Unplug the electrical connector.
4. Turn the old bulb counterclockwise and remove
it from the headlamp assembly.
5. Put the new bulb into the assembly and turn it
clockwise until it is tight. Use care not to touch
the bulb with your ngers or hands.
6. Plug in the electrical connector.
7. Put the headlamp assembly back into the vehicle.
Install and tighten the two pins.
5-55
Page 442 of 556
Front Turn Signal, Sidemarker and
Daytime Running Lamps
A. Sidemarker Lamp
B. Retainer Clip
C. Front Turn Signal Lamp
D. Daytime Running Lamp1. Remove the headlamp assembly as mentioned
previously.
2. Press the retainer clip, located behind the turn
signal housing, towards the outside of the vehicle.
3. Pull the turn signal housing out from the vehicle.
4. Press the locking release lever, turn the bulb socket
counterclockwise and remove the socket from the
turn signal housing.
5. Remove the old bulb from the bulb socket.
6. Put the new bulb into the bulb socket. Use care not
to touch the bulb with your ngers or hands.
7. Put the bulb socket into the turn signal housing and
turn it clockwise until it locks.
8. Reinstall the turn signal housing onto the vehicle,
placing the hook and posts on the inner side into
the alignment holes, and the outer side into
the retainer bracket. Push until you hear a click.
9. Reinstall the headlamp assembly.
5-56
Page 446 of 556
Replacement Bulbs
Exterior Lamp Bulb Number
Low-Beam Headlamps 9006
High-Beam Headlamps 9005
Daytime Running Lamps (DRL) 4114K
Front Roof Marker Lamp 194
Front Parking and Turn Lamp 3457A
Rear Marker Lamp, Taillamp
and Stop Lamp3157
Rear Turn Lamp 3157
Back-up Lamp 3157
For any bulb not listed here contact your dealer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear and cracking. SeeScheduled
Maintenance on page 6-4for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
seeNormal Maintenance Replacement Parts on
page 6-15.
5-60
Page 464 of 556

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.
SeeChanging a Flat Tire on page 5-80for 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.
5-78
Page 502 of 556

Fuses Usage
SEO B2 Off-Road Lamps
4WSVent Solenoid
Canister/Quadrasteer Module
Power
RR HVAC Rear Climate Control
AUX PWRAuxiliary Power
Outlet — Console
IGN 1 Ignition Relay
PCM 1 Powertrain Control Module
ETC/ECMElectronic Throttle Control,
Electronic Brake Controller
IGN EInstrument Panel Cluster,
Air Conditioning Relay,
Turn Signal/Hazard Switch,
Starter Relay
RTD Ride Control
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel Pump
F/PMP Fuel Pump (Relay)Fuses Usage
B/U LPBack-up Lamps, Automatic
Transmission Shift Lock
Control System
RR DEFOG Rear Window Defogger
HDLP-HI Headlamp High Beam Relay
PRIME Not Used
SIRSupplemental In atable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRL Daytime Running Lamps (Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HID Not Used
DRL Daytime Running Lamps
IPC/DICInstrument Panel Cluster/Driver
Information Center
HVAC/ECAS Climate Control Controller
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Page 503 of 556
Fuses Usage
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMP Air Conditioning Compressor
A/C COMPAir Conditioning Compressor
Relay
RR WPR Rear Wiper/Washer
RADIO Audio System
SEO B1Mid Bussed Electrical Center,
HomeLink, Rear Heated Seats
LO HDLP-LT Headlamp Low Beam-Left
BTSIBrake Transmission Shift
Interlock System
CRANK Starting System
LO HDLP-RT Headlamp Low Beam-RightFuses Usage
FOG LP Fog Lamp Relay
FOG LP Fog Lamps
HORN Horn Fuse
HORN Horn Relay
W/S WASHWindshield and Rear Window
Washer Pump Relay
W/S WASHWindshield and Rear Window
Washer Pump
INFO OnStar/Rear Seat Entertainment
RADIO AMP Radio Ampli er
RH HID Not Used
EAP Electric Adjustable Pedals
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-117
Page 540 of 556

Audio System(s) (cont.)
Radio with Cassette and CD.........................3-92
Radio with CD............................................3-81
Radio with Six-Disc CD..............................3-108
Rear Seat Audio (RSA)...............................3-134
Setting the Time for Radios with Radio
Data Systems (RDS)................................3-77
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-77
Theft-Deterrent Feature...............................3-135
Understanding Radio Reception...................3-137
XM™ Satellite Radio Antenna System...........3-139
Automatic Dimming Mirror Operation..........2-46, 2-49
Automatic Headlamp System............................3-15
Automatic Level Control...................................4-64
Automatic Transfer Case..................................2-30
Automatic Transmission...................................2-41
Fluid..........................................................5-24
Operation...................................................2-26
Autoride™.....................................................4-64
Auxiliary Roof Mounted Lamp Switch.................3-18
B
Backing Up....................................................4-75
Battery..........................................................5-44
BATTERY NOT CHARGING.............................3-69
Battery Replacement......................................... 2-7Battery Run-Down Protection............................3-20
Battery Warning Light......................................3-44
Before Leaving on a Long Trip.........................4-45
Before You Drive...........................................3-123
Before You Go Off-Roading..............................4-25
Bench Seat....................................................1-18
Bench Seat Split (50/50)..................................1-13
Bench Seat, Split (60/40).................................1-11
Brake
Parking......................................................2-38
System Warning Light..................................3-45
Brake Adjustment............................................5-43
Brake Fluid....................................................5-40
Brake Pedal, Throttle.......................................2-24
Brake Pedal Travel.........................................5-43
Brake Wear...................................................5-42
Brakes..........................................................5-40
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-21
Bucket Seats, Rear.........................................1-23
BUCKLE PASSENGER....................................3-69
BUCKLE SEATBELT.......................................3-69
Bulb Replacement...........................................5-54
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-56
Halogen Bulbs............................................5-54
Headlamps.................................................5-54
2