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Fuses Usage
52 Hazard Flashers
53 Transmission
54 Oxygen Sensor B
55 Oxygen Sensor A
56 Injector Bank B
57 Headlamp Driver Module
58 Truck Body Controller 1
59 Electric Adjustable Pedals
61 Ignition A1
66 Regulated Voltage Control
J-Case Fuses Usage
17 Trailer Turn Signal, Stoplamps
32 Trailer
33 Antilock Brake System
J-Case Fuses Usage
34 Ignition A
35 Blower Motor
36 Driver Side Headlamp
62 Passenger Side Headlamp
65Vehicle Stability Enhancement
System (StabiliTrak
®)
Relays Usage
37 Headlamp Washer
38 Rear Wiper
39 Fog Lamps
40 Horn
41 Fuel Pump
42 Windshield Washer
43 High-Beam Headlamp
5-118
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Relays Usage
44 Air Conditioning
45 Cooling Fan
46 Headlamp Driver Module
47 Starter
49 Electric Adjustable Pedals
60 Powertrain
63 Low-Beam Headlamp
64 Ignition 1
Misc. Usage
48 Instrument Panel Battery
Rear Underseat Fuse Block
The rear underseat fuse block is located on the driver
side of the vehicle, under the second row seat. Pull the
seat cushion forward to access the fuse block.
5-119
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Fuses Usage
01 Passenger Door Control Module
02 Driver Door Control Module
03 Liftgate Module 2
04 Truck Body Controller 3
05 Blank
06 Blank
07 Truck Body Controller 2
08 Power Seats
09 Rear Wiper
10 Driver Door Module
11 Ampli er
12 Passenger Door Module
13 Blank
14 Driver Side Rear Parking Lamps
15 Blank
16Vehicle Center High-Mounted
Stoplamp (CHMSL)
17Passenger Side Rear Parking
Lamps
18 Locks
19 Liftgate Module/Driver Seat Module
5-120
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Fuses Usage
20 Blank
21 Locks
23 Blank
24 Unlock
25 Ignition 0
26 Overhead Battery/OnStar
®System
27 Rainsense™ Wipers
28 Sunroof
29 Accessory
30 Parking Lamps
31 Truck Body Controller Accessory
32 Truck Body Controller 5
33 Front Wipers
34 Ignition 3
35 Vehicle Stop
36 Transmission Control Module
37 Heat Ventilation Air Conditioning B
Fuses Usage
38 Front Parking Lamps
39 Rear Left Turn Signal
40 Heat, Ventilation, Air Conditioning 1
41 Front Right Turn Signal
42 Radio
43 Trailer Park
44 Rear Right Turn Signal
45 Blank
46 Auxiliary Power 1
47 Blank
48 Ignition 0
49 Not Used
50 Blank
51 Front Left Turn Signal
52 Brakes
53 Truck Body Controller 4
5-121
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Page 416 of 426

Customer Assistance Information (cont.)
Roadside Assistance Program......................... 7-4
Service Publications Ordering Information........7-13
D
Daytime Running Lamps..................................3-15
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-8
Diesel
Running Out of Fuel....................................2-32
Disc, MP3......................................................3-71
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-18
Dome Lamps.................................................3-17
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 Information Center (DIC).........................3-45
DIC Operation and Displays..........................3-45
DIC Vehicle Customization............................3-53
DIC Warnings and Messages........................3-48Driving
At Night.....................................................4-14
Before a Long Trip......................................4-15
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Highway Hypnosis.......................................4-16
Hill and Mountain Roads..............................4-16
In Rain and on Wet Roads...........................4-14
Off-Road....................................................4-13
Rocking Your Vehicle to Get it Out.................4-22
Winter........................................................4-17
Dual Automatic Climate Control System.............3-20
DVD
Rear Seat Entertainment System...................3-77
E
EDR .............................................................7-14
Electrical System
Add-On Equipment.....................................5-111
Engine Compartment Fuse Block.................5-112
Fuses and Circuit Breakers.........................5-112
Headlamps...............................................5-111
Power Windows and Other Power Options....5-112
Rear Underseat Fuse Block.........................5-119
Windshield Wiper Fuses.............................5-111
4
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Electronically Controlled Air Suspension
System......................................................4-28
Engine
Air Cleaner/Filter.........................................5-24
Check and Service Engine Soon Light............3-38
Coolant......................................................5-28
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-36
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-31
Fan Noise..................................................5-37
Oil .............................................................5-18
Oil Life System...........................................5-22
Overheating................................................5-30
Reduced Power Light...................................3-42
Starting......................................................2-22
Entry Lighting.................................................3-18
Event Data Recorders.....................................7-14
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-28
FFilter
Engine Air Cleaner......................................5-24
Finish Damage.............................................5-108
Fixed Mast Antenna........................................3-92Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-85
Flat Tire, Changing.........................................5-86
Flat Tire, Storing.............................................5-98
Fluid.............................................................5-25
Power Steering...........................................5-38
Windshield Washer......................................5-39
Fog Lamp
Fog ...........................................................3-17
Front Axle......................................................5-51
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Check Gas Cap Light...................................3-44
Filling a Portable Fuel Container..................... 5-9
Filling the Tank............................................. 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-44
Gasoline Octane........................................... 5-5
Gasoline Speci cations.................................. 5-5
Low Warning Light.......................................3-44
Running Out of...........................................2-32
Fuses
Engine Compartment Fuse Block.................5-112
Fuses and Circuit Breakers.........................5-112
Rear Underseat Fuse Block.........................5-119
Windshield Wiper.......................................5-111
5
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W
Warning Lights, Gages and Indicators................3-26
Warnings
DIC Warnings and Messages........................3-48
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washer, Headlamps........................................3-11
Wheels
Alignment and Tire Balance..........................5-81
Different Size..............................................5-79
Replacement...............................................5-81
Where to Put the Restraint...............................1-38
Windows.......................................................2-13
Power........................................................2-14
Windshield
Backglass, and Wiper Blades, Cleaning........5-106
Replacement...............................................5-57Windshield (cont.)
Washer......................................................3-10
Washer Fluid..............................................5-39
Wiper Blade Replacement.............................5-57
Wiper Fuses.............................................5-111
Wipers......................................................... 3-9
Windshield, Rear Washer/Wiper........................3-10
Winter Driving................................................4-17
X
XM Radio Messages.......................................3-74
XM™ Satellite Radio Antenna System................3-92
Y
Your Vehicle and the Environment....................... 6-2
14
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