Notice:Improperly tightened wheel nuts can lead
to brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque speci®cation. See ªCapacities and
Speci®cationsº in the index for the wheel nut torque
speci®cation.
When you reinstall the regular wheel and tire, you must
also reinstall the center cap. Place the cap on the
wheel and tap it into place until it seats ¯ush with the
wheel. The cap only goes on one way. Be sure to line up
the tab on the center cap with the indentation on the
wheel.Storing a Flat or Spare Tire, Jack and
Tools
{CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
Notice:Storing an aluminum wheel with a ¯at tire
under your vehicle for an extended period of time or
with the valve stem pointing up may damage the
wheel. Always stow the wheel with the valve
stem pointing down and have the wheel/tire repaired
as soon as possible.
Store the tire under the rear of the vehicle in the
spare tire carrier. Use the art and text following to
help you:
5-94
Instrument Panel Fuse Block
The fuse block access
door is on the driver's side
edge of the instrument
panel. Pull off the cover to
access the fuse block.
To remove fuses if you don't have a fuse extractor, hold
the end of the fuse between your thumb and index
®nger and pull straight out.
You may have spare fuses located behind the fuse
block access door. These can be used to replace a bad
fuse. However, make sure it is of the correct amperage.
Fuses Usage
RR Wiper Rear Window Wiper Switch
SEO ACCYSpecial Equipment Option
Accessory
WS WPR Windshield Wipers
TBC ACCYTruck Body Controller
Accessory
IGN 3 Ignition, Heated Seats
5-112
*1Ð Gasoline Engine and Fuel Injection Rail #2.
*2Ð Gasoline Engine and Fuel Injection Rail #1.
*3Ð Gasoline Engine; Oxygen Sensors.
*4Ð Gasoline Engine; Oxygen Sensors.
*5Ð PCM Ignition
Fuses Usage
GLOW PLUG Not Used
CUST FEED Accessory Power
STUD #1 Auxiliary Power
MBECMid Bussed Electrical Center
Power Feed, Front Seats,
Right Doors
BLOWER Front Climate Control Fan
LBECLeft Bussed Electrical Center,
Door Modules, Door Locks,
Auxiliary Power Outlet - Rear
Cargo Area and Instrument
Panel
STUD 2Accessory Power/Trailer Wiring
Brake Feed
Fuses Usage
ABS Anti-Lock Brakes
VSES/ECAS Vehicle Stability
IGN A Ignition Power
IGN B Ignition Power
LBEC 1Left Bussed Electrical Center,
Left Doors, Truck Body
Controller, Flasher Module
TRL PARK Parking Lamps Trailer Wiring
RR PARKRight Rear Parking and
Sidemarker Lamps
LR PARKLeft Rear Parking and
Sidemarker Lamps
PARK LP Parking Lamps Relay
STARTER Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
SUNROOF Sunroof
5-117
Fuses Usage
LH HIDLeft Hand High Intensity
Discharge Lamps
DRL Daytime Running Lamps
IPC/DICInstrument Panel Cluster/Driver
Information Center
HVAC/ECAS Climate Control Controller
CIG LTR Cigarette Lighter
HI HDLP-RT High Beam Headlamp-Right
HDLP-LOW Headlamp Low Beam Relay
A/C COMPAir Conditioning Compressor
Relay
A/C COMP Air Conditioning Compressor
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 SystemFuses Usage
CRANK Starting System
LO HDLP - RT Headlamp Low Beam - Right
FOG LP Fog Lamp Relay
FOG LP Fog Lamps
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 HIDRight Hand High Intensity
Discharge Lamp
HORN Horn Fuse
EAP Electric Adjustable Pedals
TREC All-Wheel Drive Module
SBA Supplemental Brake Assist
5-119
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamp
Aiming.......................................................5-51
Horizontal Aiming.........................................5-52
Vertical Aiming............................................5-53
Headlamp High/Low-Beam Changer.................... 3-9
Headlamps....................................................5-56
Bulb Replacement.......................................5-55
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-60
Halogen Bulbs............................................5-55
High Intensity Discharge (HID) Lighting...........5-55
Headphones...................................................3-89
Heated Seats................................................... 1-3
Heating.........................................................3-30
Highway Hypnosis...........................................4-38
Hill and Mountain Roads..................................4-38
Hitches..........................................................4-60
HomeLink
žTransmitter....................................2-50
HomeLinkžTransmitter, Programming................2-50
Hood
Checking Things Under.................................. 5-8
Release....................................................... 5-9
Horn............................................................... 3-7
How the System Works...................................3-22
How to Add Coolant to the Coolant
Surge Tank.................................................5-30How to Add Fluid............................................5-21
How to Check........................................5-19, 5-71
How to Check Lubricant...................................5-49
How to Check Power Steering Fluid..................5-36
How to Inspect...............................................5-17
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydroplaning..................................................4-34
I
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light is Flashing.....................................3-45
If the Light Is On Steady.................................3-45
If You Are Caught in a Blizzard.........................4-42
If You Are Stuck in Sand, Mud, Ice or Snow.......4-44
If You Do Decide To Pull A Trailer.....................4-56
Ignition Positions.............................................2-30
Illuminated Visor Vanity Mirrors.........................2-27
Infants and Young Children, Restraints...............1-30
In¯ation - Tire Pressure...................................5-71
Instrument Panel
Cluster.......................................................3-34
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-19
Instrument Panel Fuse Block..........................5-112
Interior Lamps................................................3-19
8
Seats
Head Restraints............................................ 1-5
Heated Seats............................................... 1-3
Memory.....................................................2-73
Power Lumbar.............................................. 1-3
Power Seats................................................. 1-2
Rear Seat Operation...................................... 1-6
Reclining Seatbacks...................................... 1-4
Secondary Latch System.................................5-98
Securing a Child Restraint
Designed for the LATCH System...................1-42
Rear Seat Position......................................1-42
Right Front Seat Position..............................1-44
Select Button.................................................3-59
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-44
Publications Ordering Information...................7-11
SERVICE 4WD...............................................3-62
SERVICE AIR BAG.........................................3-61
SERVICE BRAKE SYSTEM.............................3-62
Service Bulletins.............................................7-11
Service Manuals.............................................7-11
SERVICE RIDE CONTROL..............................3-62SERVICE STABILITY......................................3-66
SERVICE TIRE MONITOR...............................3-67
Setting Preset PTYs (RDS Only).......................3-73
Setting Preset Stations....................................3-71
Setting the Time.............................................3-68
Setting the Tone (Bass/Treble)..........................3-71
Sheet Metal Damage.....................................5-108
Shifting Into Park (P).......................................2-38
Shifting Out of Park (P)...................................2-40
Side Rail Channels.........................................2-69
Skidding........................................................4-16
Some Other Rainy Weather Tips.......................4-34
Spare Tire....................................................5-102
Speci®cations, Capacities...............................5-120
Speedometer..................................................3-35
Stabilitrak
žSystem........................................... 4-9
STABILITY SYS ACTIVE..................................3-66
STABILITY SYS DISABLED..............................3-66
Stalling on an Incline.......................................4-28
Starting Your Engine.......................................2-31
Steering........................................................4-12
Steering in Emergencies..................................4-13
Steering Tips..................................................4-12
Steering Wheel Controls, Audio.........................3-99
Stereo RCA Jacks..........................................3-90
14