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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(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, chafing, leaks, kinks,
and proper installation.
(h)Change automatic transmission fluid and filter 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, flush, and refill cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-28
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and filler neck. Pressure
test the cooling system and pressure cap.
(j)A fluid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the fluid level checked. Add fluid if needed.
(k)If you drive regularly under dusty conditions, inspect
the filter at each engine oil change.
(l)Visually inspect belt for fraying, excessive cracks,
or obvious damage. Replace belt if necessary.
Owner Checks and Services
These owner checks and services should be performed
at the intervals speci ed to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your dealer/retailer can assist you with these
checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
6-8
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Tires (cont.)
Pressure Monitor Operation...........................5-71
Pressure Monitor System..............................5-70
Removing the Flat Tire.................................5-90
Removing the Spare Tire and Tools...............5-87
Secondary Latch System..............................5-94
Spare Tire................................................5-101
Storing a Flat or Spare Tire and Tools............5-98
Tire Sidewall Labeling..................................5-62
Tire Terminology and De nitions....................5-64
Uniform Tire Quality Grading.........................5-79
Wheel Alignment and Tire Balance.................5-81
Wheel Replacement.....................................5-81
When It Is Time for New Tires......................5-76
Towing
Recreational Vehicle.....................................4-28
Towing a Trailer..........................................4-30
Your Vehicle...............................................4-28
Traction
Limited-Slip Rear Axle.................................... 4-5
StabiliTrak
®System....................................... 4-5
Transmission
Fluid, Automatic...........................................5-25
Transmission Operation, Automatic....................2-25
Trip Odometer................................................3-28
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7
U
Uniform Tire Quality Grading............................5-79
Universal Home Remote System.......................2-40
Operation...................................................2-40
Using this Manual............................................... iii
V
Vehicle
Control........................................................ 4-3
Damage Warnings........................................... iv
Loading......................................................4-22
Symbols......................................................... iv
Vehicle Customization, DIC..............................3-53
Vehicle Data Recording and Privacy..................7-14
Vehicle Identi cation
Number (VIN)............................................5-110
Service Parts Identi cation Label..................5-110
Ventilation Adjustment......................................3-24
Visors...........................................................2-15
Voltmeter Gage..............................................3-33
13
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