Page 424 of 474
Fuses Usage
19 Trailer Electric Brake
20 Cooling Fan
21 Horn
22 Ignition E
23 Electronic Throttle Control
24Instrument Panel Cluster, Driver
Information Center
25Automatic Shift Lock Control
System
26 Engine 1
27 Back-Up
28 Powertrain Control Module 1
29 Powertrain Control ModuleFuses Usage
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
5-104
Page 425 of 474
Fuses Usage
55 Oxygen Sensor Bank A
56 Injector Bank B
57 Headlamp Driver Module
58 Truck Body Controller 1
59 Electric Adjustable Pedal
Relays Usage
37 Headlamp Washer
38 Rear Window Washer
39 Fog Lamps
40 Horn
41 Fuel Pump
42 Windshield Washer
Relays Usage
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
5-105
Page 426 of 474
Rear Underseat Fuse Block
5-106
Page 427 of 474
Fuses Usage
01 Right Door Control Module
02 Left Door Control Module
03 Endgate Module 2
04 Truck Body Controller 3
05 Blank
06 Roof Regulator
07 Truck Body Controller 2
08 Power Seats
09 Endglass Regulator
10 Driver Door Module
11 Ampli er
12 Passenger Door Module
13 Midgate Regulator
14 Left Rear Parking Lamps
15 Auxiliary Power 2Fuses Usage
16Vehicle Center High-Mounted
Stop Lamp
17 Right Rear Parking Lamps
18 Locks
19 Power Latch
20 Blank
21 Lock
22 Midgate
23Endgate Module/Driver Seat
Module
24 Unlock
25 Roof Module
26OnStar
®Overhead Battery,
OnStar®System
27 Midgate
5-107
Page 428 of 474
Fuses Usage
28 Sunroof
29 Rainsense™ Wipers
30 Parking Lamps
31Truck Body Controller, Cruise
Control
32 Truck Body Controller 5
33 Front Wipers
34 Vehicle Stop
35 Transmission Control Module
36Heat Ventilation Air
Conditioning B
37 Front Parking Lamps
38 Left Turn Signal
39Heat Ventilation Air
Conditioning 1
40 Truck Body Controller 4
41 Radio
42 Trailer ParkFuses Usage
43 Right Turn Signal
44 Heat Ventilation Air Conditioning
45 Blank
46 Auxiliary Power 1
47 Ignition 0
48 Four-Wheel Drive
49 Blank
50 Truck Body Controller Ignition
51 Brakes
52 Truck Body Controller Run
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
SPARE Spare
FUSE PULLER Fuse Puller
5-108
Page 465 of 474

Driving (cont.)
Hill and Mountain Roads..............................4-36
In Rain and on Wet Roads...........................4-31
Rocking Your Vehicle to Get it Out.................4-43
Winter........................................................4-38
Dual Automatic Climate Control System.............3-23
Dual Climate Control System............................3-20
E
Electrical System
Add-On Equipment......................................5-96
Engine Compartment Fuse Block...................5-97
Fuses and Circuit Breakers...........................5-97
Headlamps.................................................5-96
Power Windows and Other Power Options......5-96
Rear Underseat Fuse Block.........................5-106
Windshield Wiper Fuses...............................5-96
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-41
Change Engine Oil Light...............................3-44
Check and Service Engine Soon Light............3-40
Coolant......................................................5-25
Coolant Heater............................................2-27
Coolant Temperature Gage...........................3-39Engine (cont.)
Engine Compartment Overview......................5-12
Exhaust.....................................................2-40
Fan Noise..................................................5-35
Oil .............................................................5-16
Overheating................................................5-28
Reduced Power Light...................................3-45
Starting......................................................2-26
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-24
F
Filter
Engine Air Cleaner......................................5-21
Finish Damage...............................................5-93
Fixed Mast Antenna.......................................3-122
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-71
Flat Tire, Changing.........................................5-72
Flat Tire, Storing.............................................5-83
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-36
Windshield Washer......................................5-37
5
Page 466 of 474

Fog Lamps....................................................3-17
Four-Wheel Drive....................................2-32, 5-48
Front Axle......................................................5-49
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Check Gas Cap Light...................................3-47
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-47
Gasoline Octane........................................... 5-5
Gasoline Speci cations.................................. 5-5
Low Warning Light.......................................3-47
Fuses
Engine Compartment Fuse Block...................5-97
Fuses and Circuit Breakers...........................5-97
Rear Underseat Fuse Block.........................5-106
Windshield Wiper.........................................5-96
G
Gage
Check Gages Warning Light..........................3-46
Engine Coolant Temperature.........................3-39
Fuel..........................................................3-47
Oil Pressure...............................................3-43Gage (cont.)
Speedometer..............................................3-32
Tachometer.................................................3-32
Voltmeter Gage...........................................3-37
Garage Door Opener.......................................2-54
Gasoline
Octane........................................................ 5-5
Speci cations............................................... 5-5
Glove Box.....................................................2-58
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-5
Headlamps....................................................3-15
Automatic Headlamp System.........................3-16
Bulb Replacement.......................................5-50
Daytime Running Lamps...............................3-16
Electrical System.........................................5-96
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-50
Headlamps, Front Turn Signal, and
Parking Lamps.........................................5-50
High/Low Beam Changer................................ 3-8
Washer......................................................3-11
Heated Seats................................................... 1-3
6
Page 474 of 474

V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Symbols......................................................... iv
Vehicle Customization, DIC..............................3-57
Vehicle Data Collection and Event
Data Recorders............................................. 7-9
Vehicle Identi cation
Number (VIN).............................................5-95
Service Parts Identi cation Label...................5-95
Vehicle Personalization
Memory Seat..............................................2-63
Ventilation Adjustment......................................3-27
Visors...........................................................2-22
Voltmeter Gage..............................................3-37
W
Warning Lights, Gages and Indicators................3-30
Warnings
DIC Warnings and Messages........................3-52
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. ivWheels
Alignment and Tire Balance..........................5-67
Replacement...............................................5-67
Where to Put the Restraint...............................1-33
Windows.......................................................2-20
Power........................................................2-21
Windshield
Backglass, and Wiper Blades, Cleaning..........5-91
Windshield Washer.........................................3-10
Fluid..........................................................5-37
Windshield Wiper
Blade Replacement......................................5-53
Fuses........................................................5-96
Rainsense™ Wipers...................................... 3-9
Windshield Wipers......................................... 3-9
Winter Driving................................................4-38
X
XM™ Satellite Radio Antenna System..............3-122
Y
Your Vehicle and the Environment....................... 6-2
14
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