Fuses Usage
5Driver’s Side High-Beam
Headlamp
6Driver’s Side Low-Beam
Headlamp
7 Windshield Wiper
8 Automatic Transfer Case
9 Windshield Washer
10 Powertrain Control Module B
11 Fog Lamps
12 Stoplamp
13 Cigarette Lighter
14 Ignition Coils
15Transmission Control Module
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 CenterFuses Usage
25Automatic Shift Lock Control
System
26 Engine 1
27 Backup
28 Powertrain Control Module 1
29 Powertrain Control Module
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 Body Controller 1
59 Electric Adjustable Pedal
470
Fuses Usage
09 Rear Wiper
10 Driver Door Module
11 Ampli er
12 Passenger Door Module
13 Rear Climate Controls
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
20 Blank
21 Lock
23 Blank
24 Unlock
25 Blank
26 Blank
27OnStar
®Overhead Battery,
OnStar®System
28 Sunroof
29 Rainsense™ Wipers
30 Parking Lamps
Fuses Usage
31 Truck Body Controller Accessory
32 Truck Body Controller 5
33 Front Wipers
34 Vehicle Stop
35 Transmission Control Module
36 Heat Ventilation Air Conditioning B
37 Front Parking Lamps
38 Driver Side Turn Signal
39 Heat Ventilation Air Conditioning I
40 Truck Body Controller 4
41 Radio
42 Trailer Park
43 Passenger Side Turn Signal
44 Heat Ventilation Air Conditioning
45 Rear Fog Lamps
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
473
(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
liftgate handle pivot points, rear door detent link,
roller mechanism, liftgate handle pivot points, latch
bolt, fuel door hinge, cargo door hinge, locks,
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 hoses for cracks, cha ng, leaks, kinks,
and proper installation.(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 379 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid if
needed.
484
Tires........................................................... 411
Aluminum Wheels, Cleaning..................... 459
Buying New Tires..................................... 427
Chains..................................................... 433
Changing a Flat Tire................................ 436
Cleaning.................................................. 460
Different Size........................................... 428
If a Tire Goes Flat................................... 435
In ation - Tire Pressure............................ 419
In ator, Accessory.................................... 434
Inspection and Rotation............................ 425
Installing the Spare Tire........................... 440
Pressure Monitor System......................... 420
Removing the Flat Tire............................. 440
Removing the Spare Tire and Tools......... 438
Secondary Latch System......................... 446
Spare Tire................................................ 453
Storing a Flat or Spare Tire and Tools..... 450
Tire Sidewall Labeling.............................. 412
Tire Terminology and De nitions............... 416
Uniform Tire Quality Grading.................... 429
Wheel Alignment and Tire Balance........... 431
Wheel Replacement................................. 432
When It Is Time for New Tires................. 426Towing
Recreational Vehicle................................. 337
Towing a Trailer....................................... 339
Your Vehicle............................................. 337
Traction
StabiliTrak
®System................................. 289
Transmission
Fluid, Automatic....................................... 375
Transmission Operation, Automatic.............. 114
Trip Odometer............................................. 179
Turn and Lane-Change Signals................... 156
Turn Signal/Multifunction Lever.................... 155
U
Understanding Radio Reception................... 278
Uniform Tire Quality Grading....................... 429
Universal Home Remote System........133, 134
Operation........................................135, 140
532
