Page 358 of 470
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
A. Low-Beam
Headlamp
B. Daytime Running
Lamp (DRL)
C. Sidemarker LampD. High-Beam
Headlamp
E. Front Parking/Turn
Signal Lamp
5-52
Page 362 of 470
Front Turn Signal, Sidemarker and
Daytime Running Lamps
A. Low-Beam
Headlamp
B. Daytime Running
Lamp (DRL)
C. Sidemarker LampD. High-Beam
Headlamp
E. Front Parking/Turn
Signal LampTo replace a front turn signal, sidemarker or DRL bulb,
do the following:
1. Remove the headlamp assembly as described
previously. SeeHeadlamps on page 5-52for
more information.
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. Reverse the steps to reinstall.
5-56
Page 363 of 470
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps
A. Turn Signal/Taillamp
B. Stoplamp/Taillamp
C. Back-up Lamp
D. Sidemarker LampTo replace one of these bulbs, do the following:
1. Remove the
two screws from the
taillamp assembly.
2. Remove the taillamp assembly.
3. Press the release tab and turn the bulb socket
counterclockwise to remove it from the taillamp
assembly. The sidemarker lamp does not have a
release tab.
4. Pull the bulb straight out from the socket.
5. Install a new bulb into the socket and insert it into
the taillamp assembly
6. Turn the bulb socket clockwise until it clicks. The
sidemarker lamp does not have a release tab and
therefore will not click when it is installed.
7. Reinstall the taillamp assembly and tighten the
screws.
5-57
Page 364 of 470
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 3157K
Daytime Running Lamp (DRL) 4114K
Front Parking and Turn Signal
Lamps3157AK
High-Beam Headlamp 9005 or 9005 LL
Rear Turn Signal, Stoplamp and
Taillamp3157K
Sidemarker Lamp 194
For replacement bulbs 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 6-5for 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 6-16.To replace the windshield wiper blade assembly do the
following:
1. Lift the wiper arm and turn the blade until it is
facing away from the windshield.
2. Push the release lever and slide the wiper assembly
toward the driver’s side of the vehicle.
3. Install a new blade by reversing Steps 1 and 2.
5-58
Page 415 of 470
Fuses Usage
CRUISE Cruise Control
UNLOCKPower Door Lock Relay
(Unlock Function)
RR FOG LP Not Used
BRAKE Brake Switch
DRIVER UNLOCKPower Door Lock Relay
(Driver’s Door Unlock
Function)
IGN 0Brake Transmission Shift
Interlock, Powertrain Control
Module, Transmission
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 ModuleFuses Usage
RT TRLR ST/TRN Right Turn Signal/Stop Trailer
RT TRNRight Turn Signals and
Sidemarkers
BODY Harness Connector
DDM Driver Door Module
AUX PWR 2Instrument Panel Outlets,
Rear Cargo Area Power
Outlets
LOCKSRear Doors and Liftgate
Power Lock Relay Feed
ECC Liftgate
TBC 2C Truck Body Controller
FLASH Flasher Module
CB LT DOORSLeft Rear Power Window
Circuit Breaker and Driver
Door Module
TBC 2B Truck Body Controller
TBC 2A Truck Body Controller
5-109
Page 420 of 470

Fuses Usage
IGN 1 PCM Ignition
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, Electronic Brake
Controller TC2 Mode Switch
RTDElectronic Brake Controller
Battery Feed
TRL B/U Backup Lamps Trailer Wiring
PCM BPowertrain Control Module,
Fuel Pump
F/PMP Fuel Pump (Relay)
02A Oxygen SensorsFuses 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
O2B Oxygen Sensors
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 - LT High Beam Headlamp - Left
LH HID Not Used
DRL Daytime Running Lamps
RVC Regulated Voltage Control
5-114
Page 458 of 470

Audio System(s).............................................3-69
Audio Steering Wheel Controls....................3-101
Care of Your Cassette Tape Player...............3-103
Care of Your CD and DVD Player................3-104
Care of Your CDs and DVDs.......................3-104
CD Changer...............................................3-98
Chime Level Adjustment.............................3-105
Diversity Antenna System............................3-104
Navigation/Radio System, see Navigation
Manual...................................................3-84
Radio with Cassette and CD.........................3-70
Rear Seat Audio (RSA)................................3-96
Setting the Time..........................................3-70
Theft-Deterrent Feature...............................3-101
Understanding Radio Reception...................3-102
XM™ Satellite Radio Antenna System...........3-105
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-22
B
Battery..........................................................5-39
Run-Down Protection...................................3-18
Before Leaving on a Long Trip.........................4-35
Bench Seat....................................................1-18
Bench Seat Split (50/50)..................................1-13
Bench Seat, Split (60/40).................................1-10Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-25
System Warning Light..................................3-38
Brake Pedal, Throttle.......................................2-20
Brakes..........................................................5-36
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-18
Bucket Seats, Rear.........................................1-23
Bulb Replacement...........................................5-51
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-56
Halogen Bulbs............................................5-52
Headlamp Aiming........................................5-48
Headlamps.................................................5-52
High Intensity Discharge (HID) Lighting...........5-51
Replacement Bulbs......................................5-58
Taillamps, Turn Signal, Sidemarker, Stoplamps,
and Back-Up Lamps.................................5-57
Buying New Tires...........................................5-71C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Speci cations..........................5-117
Carbon Monoxide...................2-13, 2-28, 4-38, 4-50
2
Page 462 of 470

Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-8
Gage.........................................................3-48
Gasoline Octane........................................... 5-5
Gasoline Speci cations.................................. 5-6
Low Warning Light.......................................3-49
Fuses
Center Instrument Panel Fuse Block.............5-110
Fuses and Circuit Breakers.........................5-107
Instrument Panel Fuse Block.......................5-107
Underhood Fuse Block...............................5-111
Windshield Wiper.......................................5-106
G
Gage
Engine Coolant Temperature.........................3-41
Fuel..........................................................3-48
Oil Pressure...............................................3-46
Speedometer..............................................3-33
Tachometer.................................................3-33
Transmission Temperature.............................3-41
Voltmeter Gage...........................................3-37
Garage Door Opener.......................................2-36Gasoline
Octane........................................................ 5-5
Speci cations............................................... 5-6
Glove Box.....................................................2-40
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp
Aiming.......................................................5-48
Horizontal Aiming.........................................5-49
Vertical Aiming............................................5-50
Headlamps....................................................5-52
Automatic Headlamp System.........................3-15
Bulb Replacement.......................................5-51
Daytime Running Lamps...............................3-15
Flash-to-Pass............................................... 3-8
Front Turn Signal, Sidemarker and
Daytime Running Lamps...........................5-56
Halogen Bulbs............................................5-52
High Intensity Discharge (HID) Lighting...........5-51
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Heated Seats....................................1-4, 1-5, 1-10
Heater...........................................................3-22
Highbeam On Light.........................................3-48
6