While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform to
federal safety requirements and additional General
Motors Tire Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a speci ed government
test course. For example, a tire graded 150 would
wear one and a half (1.5) times as well on the
government course as a tire graded 100. The
relative performance of tires depends upon the
actual conditions of their use, however, and may
depart signi cantly from the norm due to variations
in driving habits, service practices, and differences
in road characteristics and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured
under controlled conditions on speci ed
government test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance.Warning:The traction grade assigned to this tire
is based on straight-ahead braking traction
tests, and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
Temperature – A, B, C
The temperature grades are A (the highest), B,
and C, representing the tire’s resistance to
the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a
speci ed indoor laboratory test wheel. Sustained
high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure.
The grade C corresponds to a level of performance
which all passenger car tires must meet under
the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel
than the minimum required by law.
Warning:The temperature grade for this tire is
established for a tire that is properly in ated
and not overloaded. Excessive speed,
underin ation, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
503
Fuses Usage
LT DR Driver’s Door Harness Connection
LT DRDriver’s Side Power Window Circuit
Breaker
REAR SEAT Rear Seats
AUX PWR2 Rear Cargo Area Power Outlets
SWC BKLT Steering Wheel Controls Backlight
DDM Driver Door Module
CTSYDome Lamps, Driver’s Side Turn
Signal
LT STOP TRN Driver’s Side Turn Signal, Stoplamp
DIM Instrument Panel Back Lighting
RT STOP TRNPassenger’s Side Turn Signal,
Stoplamp
BCM Body Control Module
UNLCK2 Power Door Lock 2 (Unlock Feature)
LCK2 Power Door Lock 2 (Lock Feature)
STOP LAMPSStoplamps, Center-High Mounted
StoplampFuses Usage
REAR HVAC Rear Climate Controls
PDMPassenger Door Module, Universal
Home Remote System
AUX PWR Accessory Power Outlets
IS LPS Interior Lamps
UNLCK1 Power Door Lock 1 (Unlock Feature)
OBS DETUltrasonic Rear Parking Assist,
Power Liftgate
LCK1 Power Door Lock 1 (Lock Feature)
REAR WPR Rear Wiper
COOLED
SEATSNot Used
DSMDriver Seat Module, Remote
Keyless Entry System
BODY Harness Connector
BODY Harness Connector
541
Fuses Usage
1 Not Used
2Electronic Stability Suspension
Control, Automatic Level Control
Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5Engine Control Module, Throttle
Control
6 Right Trailer Stop/Turn Lamp
7 Front Washer
8 Oxygen Sensors
9 Anti-lock Brakes System 2
10 Trailer Back-up Lamps
11 Driver’s Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils
(Right Side)
14Transmission Control Module
(Battery)
15 Vehicle Back-up Lamps
16Passenger’s Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)Fuses Usage
20 Fuel Pump
21 Not Used
22 Rear Washer
23Fuel Injectors, Ignition Coils
(Left Side)
24 Trailer Park Lamps
25 Driver’s Side Park Lamps
26 Passenger’s Side Park Lamps
27 Fog Lamps
28 Horn
29Passenger’s Side High-Beam
Headlamp
30 Daytime Running Lamps
31 Driver’s Side High-Beam Headlamp
32 Daylight Running Lamps 2
33 Sunroof
34Key Ignition System, Theft Deterrent
System
35 Windshield Wiper
36 SEO B2 Up tter Usage (Battery)
37 Electric Adjustable Pedals
38 Climate Controls (Battery)
39 Airbag System (Ignition)
40 Ampli er
545
Fuses Usage
41 Audio System
42 Four-Wheel Drive
43Miscellaneous (Ignition), Rear Vision
Camera, Cruise Control
44 Liftgate Release
45OnStar
®, Rear Seat Entertainment
Display
46 Instrument Panel Cluster
47 Not Used
48 Not Used
49Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
50 Rear Defogger
51 Airbag System (Battery)
52 SEO B1 Up tter Usage (Battery)
53Cigarette Lighter, Auxiliary Power
Outlet
54Automatic Level Control Compressor
Relay, SEO Up tter Usage
55 Climate Controls (Ignition)
56Engine Control Module, Secondary
Fuel Pump (Ignition)
J-Case Fuses Usage
60 Cooling Fan 1
61 Automatic Level Control Compressor
62 Heavy Duty Anti-lock Brake System
63 Cooling Fan 2
64 Anti-lock Brake System 1
65 Starter
66 Stud 2 (Trailer Brakes)
67 Left Bussed Electrical Center 1
68 Electric Running Boards
69 Heated Windshield Washer System
70 Four-Wheel Drive System
71Stud 1 (Trailer Connector Battery
Power)
72 Mid-Bussed Electrical Center 1
73 Climate Control Blower
74 Power Liftgate Module
75 Left Bussed Electrical Center 2
546
C
Calibration............................................157, 160
California Fuel.............................................. 429
California Proposition 65 Warning................. 427
Canadian Owners............................................ 3
Capacities and Speci cations....................... 548
Carbon Monoxide.................123, 125, 155, 405
Care of
Safety Belts.............................................. 531
Your CD and DVD Player......................... 337
Your CDs and DVDs................................. 336
Cargo Cover................................................ 176
Cargo Management System......................... 178
Center Console Storage Area....................... 175
Center Front Passenger Position,
Safety Belts................................................ 53
Center Seat................................................... 19
Chains, Tire................................................. 506
Charging System Light................................. 230
Check
Engine Light............................................. 236
Checking Things Under the Hood................. 434
Chemical Paint Spotting............................... 536
Child Restraints
Child Restraint Systems.............................. 68
Infants and Young Children......................... 64Child Restraints (cont.)
Lower Anchors and Tethers for Children..... 73
Older Children............................................ 61
Securing a Child Restraint in a
Rear Seat Position.................................. 83
Securing a Child Restraint in the
Center Front Seat Position...................... 85
Securing a Child Restraint in the
Right Front Seat Position........................ 86
Where to Put the Restraint......................... 72
Cigarette Lighter........................................... 209
Cleaning
Aluminum or Chrome-Plated Wheels......... 534
Exterior Lamps/Lenses.............................. 532
Fabric/Carpet............................................ 529
Finish Care............................................... 532
Inside of Your Vehicle............................... 528
Instrument Panel, Vinyl, and Other
Plastic Surfaces..................................... 531
Leather..................................................... 530
Tires......................................................... 535
Underbody Maintenance............................ 536
Washing Your Vehicle............................... 532
Weatherstrips............................................ 531
Windshield, Backglass, and
Wiper Blades......................................... 534
Climate Control System................................ 210
595
Driver Information Center (DIC).................... 244
DIC Operation and Displays..............244, 251
DIC Vehicle Customization........................ 264
DIC Warnings and Messages.................... 254
Driving
At Night.................................................... 373
City........................................................... 378
Defensive.................................................. 340
Drunken.................................................... 341
Freeway.................................................... 379
Hill and Mountain Roads........................... 382
In Rain and on Wet Roads....................... 375
Off-Road................................................... 356
Recovery Hooks....................................... 389
Rocking Your Vehicle to Get it Out........... 388
Winter....................................................... 384
Dual Automatic Climate Control System........ 213
DVD
Rear Seat Entertainment System.............. 321
E
Electrical System
Add-On Equipment.................................... 539
Center Instrument Panel Fuse Block......... 542
Fuses and Circuit Breakers....................... 540
Instrument Panel Fuse Block.................... 540Electrical System (cont.)
Power Windows and Other
Power Options....................................... 539
Underhood Fuse Block.............................. 543
Windshield Wiper Fuses............................ 539
Engine
Air Cleaner/Filter....................................... 443
Battery...................................................... 466
Check and Service Engine Soon Light...... 236
Coolant..................................................... 449
Coolant Heater.......................................... 140
Coolant Temperature Gage....................... 234
Drive Belt Routing..................................... 567
Engine Compartment Overview................. 436
Exhaust.................................................... 155
Fan Noise................................................. 460
Oil ............................................................ 438
Oil Life System......................................... 441
Overheated Protection Operating Mode....... 454
Overheating.............................................. 452
Starting..................................................... 138
Entry Lighting............................................... 204
Event Data Recorders (EDR)....................... 583
Exit Lighting................................................. 204
Extender, Safety Belt...................................... 60
Exterior Lamps............................................. 199
597
Power (cont.)
Steering Fluid........................................... 461
Windows................................................... 131
Pretensioners, Safety Belt.............................. 60
Programmable Automatic Door Locks........... 121
Q
Questions and Answers About Safety Belts....... 42
R
Radios......................................................... 274
Care of Your CD and DVD Player............. 337
Care of Your CDs and DVDs.................... 336
Navigation/Radio System,
see Navigation Manual.......................... 321
Radio with CD.......................................... 278
Radio with CD and DVD........................... 295
Rear Seat Audio....................................... 332
Setting the Time................................276, 277
Theft-Deterrent.......................................... 334
Understanding Reception.......................... 335
Rainsense™ II Wipers.................................. 193
Reading Lamps............................................ 204Rear Air Conditioning and Heating System...... 220
Rear Air Conditioning and Heating System
and Electronic Climate Controls................ 222
Rear Axle..................................................... 472
Locking..................................................... 347
Rear Door Security Locks............................ 122
Rear Heated Seats........................................ 19
Rear Safety Belt Comfort Guides................... 56
Rear Seat Armrest....................................... 176
Rear Seat Audio (RSA)................................ 332
Rear Seat Entertainment System.................. 321
Rear Seat Passengers, Safety Belts............... 54
Rear Side Window Antenna.......................... 337
Rear Storage Area....................................... 176
Rear Windshield Washer/Wiper.................... 195
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display........... 160
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature
Display..................................................... 157
Reclining Seatbacks....................................... 15
Recommended Fluids and Lubricants........... 564
Recovery Hooks........................................... 389
Recreational Vehicle Towing......................... 401
Remote Keyless Entry System..................... 112
603