
Headlamps
The headlamp wiring is protected by four fuses. An
electrical overload will cause a lamp to go on and off.
If this happens, have your headlamp wiring checked
right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow or ice, the wiper will stop until the motor cools.
If the overload is caused by some electrical problem,
be sure to get it xed.
Power Windows and Other
Power Options
Circuit breakers protect the power windows and other
power accessories. When the current load is too heavy,
the circuit breaker opens and closes, protecting the
circuit until the problem is xed or goes away.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of res
caused by electrical problems.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical
size and rating.
If you ever have a problem on the road and don’t have
a spare fuse, you can borrow one that has the same
amperage. Just pick some feature of your vehicle
that you can get along without — like the radio or
cigarette lighter— and use its fuse, if it is the correct
amperage. Replace it as soon as you can.
5-95

Fuses Usage
5 Driver’s Side High-Beam Headlamp
6 Driver’s Side Low-Beam Headlamp
7 Rear Window Washer
8 Automatic Transfer Case
9 Windshield Washer
10 Powertrain Control Module B
11 Fog Lamps
12 Stoplamp
13 Cigarette Lighter
14 Not Used
15 Electric Adjustable Pedal
16 Truck Body Controller, Ignition 1
17 Crank
18 Airbag
19 Trailer Electric Brake
20 Cooling Fan
21 Horn
22 Ignition E
23 Electronic Throttle ControlFuses Usage
24Instrument Panel Cluster, Driver
Information Center
25 Automatic Shift Lock Control System
26 Engine 1
27 Back-Up
28 Powertrain Control Module 1
29 Oxygen Sensor
30 Air Conditioning
31 Truck Body Controller
32 Trailer
33 Anti-lock Brakes (ABS)
34 Ignition A
35 Blower Motor
36 Ignition B
50 Passenger’s Side Trailer Turn
51 Driver’s Side Trailer Turn
52 Hazard Flashers
53 Headlamp Driver Module
54 Air Injection Reactor (AIR) Solenoid
56 Air Injection Reactor (AIR) Pump
5-98

Relays Usage
37 Blank or Headlamp Washer
38 Rear Window Washer
39 Fog Lamps
40 Horn
41 Fuel Pump
42 Windshield Washer
43 High-Beam Headlamp
44 Air Conditioning
45 Cooling Fan
46 Headlamp Driver ModuleRelays Usage
47 Starter
49 Electric Adjustable Pedal
55 Air Injection Reactor (AIR) Solenoid
57 Powertrain
58Vehicle Stability Enhancement
System (StabiliTrak
®)
Miscellaneous Usage
48 Instrument Panel Battery
5-99

Fuses Usage
6 Driver’s Side Low-Beam Headlamp
7 Rear Window Washer
8 Automatic Transfer Case
9 Windshield Washer
10 Powertrain Control Module B
11 Fog Lamps
12 Stoplamp
13 Cigarette Lighter
14 Ignition Coils
15 Canister Vent
16 Truck Body Controller, Ignition 1
17 Crank
18 Airbag
19 Trailer Electric Brake
20 Cooling Fan
21 Horn
22 Ignition E
23 Electronic Throttle Control
24Instrument Panel Cluster, Driver
Information Center
25 Automatic Shift Lock Control System
26 Engine 1Fuses Usage
27 Back-Up
28 Powertrain Control Module 1
29 Powertrain
30 Air Conditioning
31 Injector Bank A
32 Trailer
33 Anti-lock Brakes (ABS)
34 Ignition A
35 Blower Motor
36 Ignition B
50 Passenger’s Side Trailer Turn
51 Driver’s Side Trailer Turn
52 Hazard Flashers
53 Transmission
54 Oxygen Sensor Bank B
55 Oxygen Sensor Bank A
56 Injector Bank B
57 Headlamp Driver Module
58 Truck Body Controller 1
59 Electric Adjustable Pedal
61Vehicle Stability Enhancement
System (StabiliTrak
®)
5-101

Relays Usage
37 Headlamp Washer
38 Rear Window Washer
39 Fog Lamps
40 Horn
41 Fuel Pump
42 Windshield Wipers/Washer
43 High-Beam Headlamp
44 Air Conditioning
45 Cooling Fan
46 Headlamp Driver Module
47 Starter
49 Electric Adjustable Pedal
60 Powertrain
Miscellaneous Usage
48 Instrument Panel Battery
Rear Underseat Fuse Block
5-102

Customer Assistance Information (cont.)
Reporting Safety Defects to the
Canadian Government..............................7-14
Reporting Safety Defects to the
United States Government.........................7-13
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-14
D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-8
Displacement on Demand™ (DoD™).................2-21
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-16
Dome Lamps.................................................3-16
Door
Delayed Locking........................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-9
Rear Door Security Locks.............................2-11
Driver
Position, Safety Belt.....................................1-13
Driver Information Center (DIC).........................3-43
DIC Operation and Displays..........................3-44
DIC Vehicle Customization............................3-52
DIC Warnings and Messages........................3-47Driving
At Night.....................................................4-30
City...........................................................4-34
Defensive..................................................... 4-2
Drunken....................................................... 4-3
Freeway.....................................................4-35
Hill and Mountain Roads..............................4-38
In Rain and on Wet Roads...........................4-31
Off-Road....................................................4-18
Rocking Your Vehicle to Get it Out.................4-44
Winter........................................................4-40
Dual Automatic Climate Control System.............3-19
DVD
Rear Seat Entertainment System..................3-113
E
Electrical System
Add-On Equipment......................................5-94
Engine Compartment Fuse Block...................5-96
Fuses and Circuit Breakers...........................5-95
Headlamps.................................................5-95
Power Windows and Other Power Options......5-95
Rear Underseat Fuse Block.........................5-102
Windshield Wiper Fuses...............................5-95
Electronically Controlled Air Suspension
System......................................................4-50
4

O
Odometer......................................................3-27
Odometer, Trip...............................................3-27
Off-Road Driving.............................................4-18
Off-Road Recovery..........................................4-15
Oil
Engine.......................................................5-15
Pressure Gage............................................3-38
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-26
Online Owner Center........................................ 7-3
OnStar
®System, see OnStar®Manual...............2-41
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-23
Outside
Convex Mirror.............................................2-40
Curb View Assist Mirror................................2-40
Heated Mirrors............................................2-40
Power Mirror...............................................2-39
Overhead Console..........................................2-47
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
P
Park (P)
Shifting Into................................................2-25
Shifting Out of............................................2-26
Parking
Brake........................................................2-24
Over Things That Burn.................................2-27
Passenger Airbag Status Indicator.....................3-30
Passenger Sensing System..............................1-56
Passing.........................................................4-16
Passlock
®......................................................2-17
Power
Accessory Outlet(s)......................................3-18
Door Locks.................................................. 2-8
Electrical System.........................................5-95
Lumbar Controls........................................... 1-3
Reclining Seatbacks...................................... 1-4
Reduced Engine Light..................................3-40
Retained Accessory (RAP)............................2-18
Seat............................................................ 1-2
Steering Fluid.............................................5-34
Windows....................................................2-14
Pretensioners, Safety Belt................................1-25
Programmable Automatic Door Locks.................. 2-9
9

W
Warning Lights, Gages and Indicators................3-25
Warnings
DIC Warnings and Messages........................3-47
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Wheels
Alignment and Tire Balance..........................5-65
Different Size..............................................5-63
Replacement...............................................5-66
Where to Put the Restraint...............................1-36
Windows.......................................................2-13
Power........................................................2-14
Windshield
Backglass, and Wiper Blades, Cleaning..........5-90
Rainsense™ Wipers...................................... 3-9
Replacement...............................................5-50Windshield (cont.)
Washer......................................................3-10
Washer Fluid..............................................5-35
Wiper Blade Replacement.............................5-50
Wiper Fuses...............................................5-95
Wipers......................................................... 3-9
Windshield, Rear Washer/Wiper........................3-10
Winter Driving................................................4-40
X
XM™ Satellite Radio Antenna System..............3-130
Y
Your Vehicle and the Environment....................... 6-2
14