2. Remove the
two screws from the
taillamp assembly.
3. Remove the taillamp assembly.
4. Press the release tab and turn the bulb socket
counterclockwise to remove it from the taillamp
assembly.
5. Pull the bulb straight out from the socket.
6. Press a new bulb into the socket, insert it into
the taillamp assembly and turn the bulb socket
clockwise until it clicks.
7. Reinstall the taillamp assembly and tighten
the screws.Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp, Rear Turn Signal,
Stoplamp and Taillamp3157K
Daytime Running Lamp (DRL) 4114K
Front Turn Signal Lamps 3157AK
High-Beam Headlamp 9005 or 9005 LL
Sidemarker Lamp 194
For replacement bulbs not listed here, contact your
dealer.
5-58
Fuses Usage
TBC ACCYTruck Body Controller
Accessory
IGN 3 Ignition, Heated Seats
4WD Four-Wheel Drive System
HTR A/C Climate Control System
LCKPower Door Lock Relay
(Lock Function)
HVAC 1Inside Rearview Mirror,
Climate Control System
LT DRDriver’s Door Harness
Connection
CRUISE Cruise Control
UNLCKPower Door Lock Relay
(Unlock Function)
RR FOG LP Rear Fog Lamp (Export Only)
BRAKE Anti-lock Brake SystemFuses Usage
DRIVER UNLCKPower Door Lock Relay
(Driver’s Door Unlock
Function)
IGN 0Powertrain Control Module,
Transmission Control Module
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 Trailer
RT TRNRight Turn Signals and
Sidemarkers
5-111
Fuses Usage
PARK LP Parking Lamps Relay
STRTR Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
SEO B2 Off-Road Lamps
4WS Not Used
AUX PWRAccessory Power
Outlet — Console
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
RTDElectronic Suspension
Control, Automatic Level
Control (ALC) Exhaust
TRL B/U Backup Lamps Trailer WiringFuses Usage
F/PMP Fuel Pump (Relay)
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
AIRBAGSupplemental 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-LTDriver’s Side High Beam
Headlamp
LH HIDLeft Hand High Intensity
Discharge Lamps
DRL Daytime Running Lamps
5-116
Ashtray(s)......................................................3-21
Audio System(s).............................................3-63
Audio Steering Wheel Controls......................3-98
Care of Your Cassette Tape Player...............3-100
Care of Your CD and DVD Player................3-101
Care of Your CDs and DVDs.......................3-101
CD Changer...............................................3-94
Chime Level Adjustment.............................3-102
Fixed Mast Antenna...................................3-101
Navigation/Radio System, see Navigation
Manual...................................................3-80
Radio with Cassette and CD.........................3-65
Rear Seat Audio (RSA)................................3-92
Setting the Time..........................................3-64
Theft-Deterrent Feature................................3-97
Understanding Radio Reception.....................3-99
XM™ Satellite Radio Antenna System...........3-102
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-30B
Battery..........................................................5-39
Run-Down Protection...................................3-18
Before Leaving on a Long Trip.........................4-35
Brake
Anti-Lock Brake System (ABS)........................ 4-7
Emergencies................................................ 4-8
Parking......................................................2-33
System Warning Light..................................3-35
Brake Pedal, Throttle.......................................2-28
Brakes..........................................................5-36
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-25
Bulb Replacement...........................................5-52
Front Turn Signal, Sidemarker and
Daytime Running Lamps...........................5-56
Halogen Bulbs............................................5-52
Headlamp Aiming........................................5-48
Headlamps.................................................5-53
High Intensity Discharge (HID) Lighting...........5-52
Replacement Bulbs......................................5-58
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps........................................5-57
Buying New Tires...........................................5-74
2
Fog Lamps....................................................3-16
Front Axle......................................................5-47
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-44
Gasoline Octane........................................... 5-5
Gasoline Speci cations.................................. 5-5
Low Warning Light.......................................3-44
Fuses
Center Instrument Panel Fuse Block.............5-112
Fuses and Circuit Breakers.........................5-109
Instrument Panel Fuse Block.......................5-110
Underhood Fuse Block...............................5-113
Windshield Wiper.......................................5-109
G
Gage
Engine Coolant Temperature.........................3-37
Fuel..........................................................3-44
Oil Pressure...............................................3-41
Speedometer..............................................3-30Gage (cont.)
Tachometer.................................................3-30
Transmission Temperature.............................3-38
Voltmeter Gage...........................................3-34
Garage Door Opener.......................................2-48
Gasoline
Octane........................................................ 5-5
Speci cations............................................... 5-5
Glove Box.....................................................2-53
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp
Aiming.......................................................5-48
Horizontal Aiming.........................................5-49
Vertical Aiming............................................5-50
Headlamps....................................................5-53
Automatic Headlamp System.........................3-15
Bulb Replacement.......................................5-52
Daytime Running Lamps...............................3-15
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-56
6
Service (cont.)
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-39
Publications Ordering Information...................7-14
Servicing Your Airbag-Equipped Vehicle..............1-64
Setting the Time.............................................3-64
Sheet Metal Damage.....................................5-106
Shifting Into Park (P).......................................2-34
Shifting Out of Park (P)...................................2-35
Signals, Turn and Lane-Change.......................... 3-7
Spare Tire.....................................................5-99
Installing....................................................5-86
Removing...................................................5-82
Storing.......................................................5-96
Speci cations, Capacities...............................5-119
Speedometer..................................................3-30
StabiliTrak
®System.......................................... 4-9
Starting Your Engine.......................................2-27
Steering........................................................4-12
Steering Wheel Controls, Audio.........................3-98
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
All-Weather Cargo Area................................2-68
Center Console Storage Area........................2-53
Cupholder(s)...............................................2-53
Glove Box..................................................2-53
Instrument Panel Storage Area......................2-53Storage Areas (cont.)
Luggage Carrier..........................................2-54
Rear Seat Armrest.......................................2-55
Top-Box Storage..........................................2-72
Stuck in Sand, Mud, Ice or Snow......................4-42
Sun Visors.....................................................2-23
Sunroof.........................................................2-73
T
Tachometer....................................................3-30
Tailgate.........................................................2-19
Taillamps
Turn Signal, Stoplamps and Back-up Lamps......5-57
Theft-Deterrent, Radio.....................................3-97
Theft-Deterrent Systems...................................2-23
Content Theft-Deterrent................................2-23
Passlock
®...................................................2-25
Throttle, Adjustable..........................................2-28
Tilt Wheel........................................................ 3-6
Tires.............................................................5-60
Aluminum or Chrome-Plated Wheels,
Cleaning...............................................5-105
Buying New Tires........................................5-74
Chains.......................................................5-79
Changing a Flat Tire....................................5-81
Cleaning...................................................5-106
12