Fuses Usage
4WD Four-Wheel Drive System
HTR A/C Climate Control System
LOCKPower Door Lock Relay
(Lock Function)
HVAC 1Inside Rearview Mirror,
Climate Control System
L DOORDriver’s Door Harness
Connection
CRUISE Cruise Control
UNLOCKPower Door Lock Relay
(Unlock Function)
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 TrailerFuses Usage
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
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
5-107
Center Instrument Panel Fuse Block
The center instrument panel utility block is located
underneath the instrument panel, to the left of the
steering column.
Device Usage
SEOSpecial Equipment
Option/Off-road Lamps
Harness Connector
TRAILER Trailer Brake Wiring
UPFIT Up tter (Not Used)
SL RIDE Ride Control (Not Used)
HDLR 2 Headliner Wiring Connector 2
BODY Body Wiring Connector
DEFOG Rear Defogger Relay
HDLNR 1 Headliner Wiring Connector 1
SPARE RELAY Not Used
CB SEATDriver and Passenger Seat
Module Circuit Breaker
CB RT DOORRear Right Power Window,
Passenger Door Module
SPARE Not Used
INFO Not Used
5-108
*1— Gasoline Engine and Fuel Injection Rail #2.
*2— Gasoline Engine and Fuel Injection Rail #1.
*3— Gasoline Engine; Oxygen Sensors.
*4— Gasoline Engine; Oxygen Sensors.
*5— PCM Ignition
Fuses Usage
GLOW PLUG Not Used
CUST FEED Accessory Power
HYBRID Hybrid
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
STRTR Starter Relay
INTPARK Interior Lamps
STOP LP Stoplamps
TBC BATTTruck Body Controller
Battery Feed
S/ROOF Sunroof
5-111
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts,
signs of wear or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, cha ng, etc. Visually check constant
velocity joints, rubber boots and axle seals for leaks.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken airbag
coverings, and have them repaired or replaced.
(The airbag system does not need regular maintenance.)(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl, rear
compartment hinges, outer tailgate handle pivot points,
latch bolt, fuel door hinge and folding seat hardware.
More frequent lubrication may be required when exposed
to a corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them last
longer, seal better and not stick or squeak.
(g)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing and condition. Check
that the purge valve works properly (if equipped).
Replace as needed.
(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush and re ll cooling system. This service can
be complex; you should have your dealer perform this
service. See Engine Coolant on page 5-23 for what to
use. Inspect hoses. Clean radiator, condenser, pressure
cap and ller neck. Pressure test the cooling system and
pressure cap.
6-8
Cupholder(s)..................................................2-50
Customer Assistance Information
Courtesy Transportation.................................. 7-8
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Reimbursement Program............... 7-6
Reporting Safety Defects to General Motors....7-12
Reporting Safety Defects to the
Canadian Government..............................7-12
Reporting Safety Defects to the
United States Government.........................7-11
Roadside Service.......................................... 7-6
Service Publications Ordering Information........7-12
D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-9
Doing Your Own Service Work........................... 5-4
Dome Lamps.................................................3-18
Door
Delayed Locking........................................... 2-9
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12Driver
Position, Safety Belt.....................................1-13
Driver Information Center (DIC).........................3-46
DIC Operation and Displays..........................3-47
DIC Vehicle Customization............................3-60
DIC Warnings and Messages........................3-50
Driving
At Night.....................................................4-29
City...........................................................4-33
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-34
Hill and Mountain Roads..............................4-36
In Rain and on Wet Roads...........................4-30
Recovery Hooks..........................................4-43
Rocking Your Vehicle to Get it Out.................4-42
Winter........................................................4-38
Dual Automatic Climate Control System.............3-23
DVD
Rear Seat Entertainment System...................3-80
E
Electrical System
Add-On Equipment.....................................5-105
Center Instrument Panel Fuse Block.............5-108
Fuses and Circuit Breakers.........................5-105
Instrument Panel Fuse Block.......................5-106
4
Instrument Panel (cont.)
Overview..................................................... 3-4
Storage Area..............................................2-50
JJump Starting.................................................5-41
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labelling, Tire Sidewall....................................5-61
Lamps
Battery Run-Down Protection.........................3-19
Dome........................................................3-18
Exterior......................................................3-13
Exterior Cargo.............................................3-17
Fog ...........................................................3-16
Reading.....................................................3-18
LATCH System
Child Restraints...........................................1-38
Securing a Child Restraint Designed for
the LATCH System...................................1-40
Light
Airbag Readiness........................................3-32
Anti-Lock Brake System Warning...................3-37Light (cont.)
Brake System Warning.................................3-35
Charging System.........................................3-34
Cruise Control.............................................3-44
Highbeam On.............................................3-44
Low Fuel Warning.......................................3-45
Low Tire Pressure Warning Light...................3-37
Malfunction Indicator....................................3-40
Passenger Airbag Status Indicator..................3-33
Safety Belt Reminder...................................3-31
Security.....................................................3-43
Tow/Haul Mode...........................................3-44
Traction Off................................................3-38
Lighting
Entry/Exit...................................................3-18
Lockout Protection..........................................2-12
Locks
Delayed Locking........................................... 2-9
Door........................................................... 2-8
Lockout Protection.......................................2-12
Power Door.................................................. 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Loss of Control...............................................4-15
Low Fuel Warning Light...................................3-45
Luggage Carrier..............................................2-51
Lumbar
Power Controls............................................. 1-3
7
Outside
Automatic Dimming Mirror with Curb View
Assist.....................................................2-43
Convex Mirror.............................................2-42
Heated Mirrors............................................2-43
Power Mirrors.............................................2-41
Overheated Engine Protection Operating Mode.....5-28
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park Aid........................................................3-19
Park (P)
Shifting Into................................................2-35
Shifting Out of............................................2-36
Parking
Assist........................................................3-19
Brake........................................................2-34
Over Things That Burn.................................2-37
Passenger Airbag Status Indicator.....................3-33
Passenger Sensing System..............................1-54
Passing.........................................................4-14
Passlock
®......................................................2-26
Power
Accessory Outlets........................................3-22
Door Locks.................................................. 2-9
Electrical System.......................................5-105Power (cont.)
Lumbar Controls........................................... 1-3
Retained Accessory (RAP)............................2-28
Seat............................................................ 1-2
Steering Fluid.............................................5-35
Windows....................................................2-24
Programmable Automatic Door Locks.................2-10
Programming the HomeLink
®Transmitter...........2-46
Q
Questions and Answers About Safety Belts.........1-12
R
Radios..........................................................3-66
Care of Your Cassette Tape Player................3-97
Care of Your CD and DVD Player..................3-99
Care of Your CD Player...............................3-98
Care of Your CDs and DVDs........................3-98
CD Changer...............................................3-92
Navigation/Radio System..............................3-90
Radio with Cassette and CD.........................3-67
Rear Seat Audio..........................................3-91
Setting the Time..........................................3-66
Theft-Deterrent............................................3-95
Understanding Reception..............................3-97
9
Reading Lamps..............................................3-18
Rear Axle......................................................5-46
Rear Door Security Locks................................2-12
Rear Safety Belt Comfort Guides......................1-23
Rear Seat Armrest..........................................2-52
Rear Seat Audio (RSA)....................................3-91
Rear Seat Entertainment System.......................3-80
Rear Seat Operation......................................... 1-6
Rear Seat Passengers, Safety Belts..................1-20
Rearview Mirror, Automatic Dimming with OnStar
®,
Compass and Temperature Display..................2-39
Reclining Seatbacks.......................................... 1-4
Recommended Fluids and Lubricants.................6-12
Recovery Hooks.............................................4-43
Recreational Vehicle Towing.............................4-50
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the Flat Tire and Installing the
Spare Tire..................................................5-83
Removing the Spare Tire and Tools...................5-79
Replacement Bulbs.........................................5-58
Reporting Safety Defects
Canadian Government..................................7-12
General Motors...........................................7-12
United States Government............................7-11
Restraint System Check
Checking Your Restraint Systems...................1-59
Replacing Restraint System Parts
After a Crash..........................................1-60Restraint Systems
Checking....................................................1-59
Replacing Parts...........................................1-60
Retained Accessory Power (RAP)......................2-28
Right Front Passenger Position, Safety Belts......1-20
Road Sensing Suspension................................. 4-8
Roadside
Service........................................................ 7-6
Rocking Your Vehicle to Get it Out....................4-42
Running Your Engine While You Are Parked.......2-38
S
Safety Belt
Reminder Light............................................3-31
Safety Belts
Care of......................................................5-99
Driver Position............................................1-13
How to Wear Safety Belts Properly................1-13
Questions and Answers About Safety Belts.....1-12
Rear Safety Belt Comfort Guides for
Children and Small Adults.........................1-23
Rear Seat Passengers.................................1-20
Right Front Passenger Position......................1-20
Safety Belt Extender....................................1-24
Safety Belt Use During Pregnancy.................1-20
Safety Belts Are for Everyone......................... 1-8
Safety Warnings and Symbols.............................. iii
10