Headlamps
A. Low-Beam
Headlamp (HID)
B. Daytime Running
Lamp
C. Sidemarker LampD. High-Beam
Headlamp
E. Front Parking and
Turn Signal Lamp1. Open the hood of the vehicle.
2. Pry up the eight fastener plugs on the radiator
cover and pull the fasteners out.
3. Lift off the radiator cover.
5-57
Front Turn Signal, Sidemarker and
Daytime Running Lamps
A. Low-Beam
Headlamp (HID)
B. Daytime Running
Lamp
C. Sidemarker LampD. High-Beam
Headlamp
E. Front Turn Signal
Lamp1. Remove the headlamp assembly as described
previously.
2. Remove the rubber, circular-shaped bulb cap for
the affected bulb from the headlamp assembly.
3. Press the locking release lever, turn the bulb socket
counterclockwise and remove it from the headlamp
assembly. (There is no lock for the sidemarker lamp.)
4. Remove the old bulb from the bulb socket.
5. Put the new bulb into the bulb socket.
6. Put the bulb socket into the turn signal housing and
turn it clockwise until it locks. (There is no lock for
the sidemarker lamp.)
7. Reinstall the rubber, circular-shaped bulb cap to the
headlamp assembly.
8. Put the headlamp assembly back into the vehicle
by reversing the previous mentioned steps.
5-61
Center High-Mounted Stoplamp
(CHMSL)
If your vehicle has this component and it needs
replacement, it is recommended that it be replaced as a
unit by your dealer.
Taillamps
A. Turn Signal-Taillamp
B. Stop-Taillamp
C. Back-up Lamp
D. Sidemarker Lamp1. Use a screwdriver to
remove the two screws
from the lamp
assembly.
2. Remove the lamp assembly.
3. Press the release tab and turn the bulb socket
counterclockwise to remove it from the taillamp
housing. (The sidemarker lamp does not have a
release tab.)
5-62
Fuses Usage
RR FOG LP Rear Fog Lamp (Export Only)
BRAKE Anti-Lock Brake System
DRIVER UNLOCKPower Door Lock Relay
(Driver’s Door Unlock
Function)
IGN 0 PCM, TCM
TBC IGN 0 Truck Body Controller
VEH CHMSLVehicle and Trailer High
Mounted Stoplamp
LT TRLR ST/TRN Left Turn Signal/Stop Trailer
LT TRNLeft Turn Signals and
Sidemarkers
VEH STOPVehicle Stoplamps, Brake
Module, Electronic Throttle
Control Module
Body Harness Connector
RT TRLR ST/TRN Right Turn Signal/Stop TrailerFuses Usage
RT TRNRight Turn Signals and
Sidemarkers
DDM Driver Door Module
AUX PWR 2Rear Cargo Area Power
Outlets
LOCKS Power Door Lock System
ECCRear Electronic Climate
Control, Liftgate
TBC 2C Truck Body Controller
FLASH Flasher Module
CB LT DOORSLeft Power Window Circuit
Breaker
TBC 2B Truck Body Controller
TBC 2A Truck Body Controller
5-117
Fuses Usage
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
INJ 1Ignition Coil, Fuel
Injectors--Bank 1
INJ 2Ignition Coil, Fuel
Injectors--Bank 2
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 PumpFuses Usage
F/PMP Fuel Pump (Relay)
O2A Oxygen Sensors
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
O2B Oxygen Sensors
SIRSupplemental In atable
Restraint System
FRT PARKFront Parking Lamps,
Sidemarker Lamps
DRLDaytime Running Lamps
(Relay)
SEO IGN Rear Defog Relay
TBC IGN1 Truck Body Controller Ignition
HI HDLP-LT High Beam Headlamp-Left
LH HIDLeft Hand High Intensity
Discharge Lamps
5-122
Audio System(s) (cont.)
Diversity Antenna System............................3-106
Navigation/Radio System..............................3-86
Radio with Cassette and CD.........................3-70
Rear Seat Audio (RSA)................................3-97
Setting the Time..........................................3-70
Theft-Deterrent Feature...............................3-102
Understanding Radio Reception...................3-104
XM™ Satellite Radio Antenna System...........3-106
Automatic Climate Control System.....................3-23
Automatic Dimming Mirror Operation..................2-32
Automatic Headlamp System............................3-15
Automatic Level Control...................................4-56
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-22
B
Backing Up....................................................4-65
Battery..........................................................5-42
BATTERY NOT CHARGING.............................3-63
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-19
Before Leaving on a Long Trip.........................4-38
Before You Drive............................................3-86
Before You Go Off-Roading..............................4-18
Bench Seat....................................................1-21Bench Seat Split (50/50)..................................1-14
Bench Seat, Split (60/40).................................1-12
Brake
Parking......................................................2-25
System Warning Light..................................3-40
Brake Adjustment............................................5-42
Brake Fluid....................................................5-39
Brake Pedal, Throttle.......................................2-20
Brake Pedal Travel.........................................5-42
Brake Wear...................................................5-41
Brakes..........................................................5-39
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9
Break-In, New Vehicle.....................................2-18
Bucket Seats, Rear.........................................1-27
BUCKLE PASSENGER....................................3-66
BUCKLE SEATBELT.......................................3-66
Bulb Replacement...........................................5-56
Center High-Mounted Stoplamp (CHMSL)........5-62
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-61
Halogen Bulbs............................................5-56
Headlamp Aiming........................................5-52
Headlamps.................................................5-57
High Intensity Discharge (HID) Lighting...........5-56
Replacement Bulbs......................................5-63
Taillamps....................................................5-62
Buying New Tires...........................................5-80
2
Fuel (cont.)
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-49
Gasoline Octane........................................... 5-5
Gasoline Speci cations.................................. 5-6
Low Warning Light.......................................3-50
Fuel Information Button....................................3-54
FUEL LEVEL LOW.........................................3-64
Fuses
Fuses and Circuit Breakers.........................5-115
Windshield Wiper.......................................5-114
G
Gage
Engine Coolant Temperature.........................3-43
Fuel..........................................................3-49
Oil Pressure...............................................3-47
Speedometer..............................................3-36
Tachometer.................................................3-36
Transmission Temperature.............................3-44
Voltmeter Gage...........................................3-40
Garage Door Opener.......................................2-39Gasoline
Octane........................................................ 5-5
Speci cations............................................... 5-6
Gate Operator and Canadian Programming........2-41
Getting Familiar with Off-Road Driving................4-20
Glove Box.....................................................2-43
GM Mobility Program for Persons with
Disabilities.................................................... 7-6
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-8
Headlamp
Aiming.......................................................5-52
Horizontal Aiming.........................................5-54
Vertical Aiming............................................5-54
Headlamp High/Low-Beam Changer.................... 3-9
Headlamps....................................................5-57
Bulb Replacement.......................................5-56
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-61
Halogen Bulbs............................................5-56
High Intensity Discharge (HID) Lighting...........5-56
Headphones...................................................3-87
7