
(E) Rim Diameter:Diameter of the wheel in
inches.
(F) Service Description:These characters
represent the load range and speed rating of the
tire. The load index represents the load carry
capacity a tire is certi ed to carry. The load index
can range from 1 to 279. The speed rating is
the maximum speed a tire is certi ed to carry a
load. Speed ratings range from A to Z.
Tire Terminology and De nitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the
tire. Air pressure is expressed in pounds
per square inch (psi) or kilopascal (kPa).
Accessory Weight:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic
transmission/transaxle, power steering, power
brakes, power windows, power seats, and
air conditioning.Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be
made from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
Cold Tire Pressure:The amount of air pressure
in a tire, measured in pounds per square inch
(psi) or kilopascals (kPa) before a tire has built up
heat from driving. SeeIn ation - Tire Pressure
on page 422.
Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment
including the maximum capacity of fuel, oil, and
coolant, but without passengers and cargo.
417

Fuses Usage
4 Spare Fuse
5 Fuse Pull
6 Reverse Lamp
7 Starter/Crank
8 Parking Brake Solenoid A
9 Reverse Lamps
10 BTSI Solenoid, Column Lock
11 Not Used
12 Not Used
13 GMLAN Devices
14Rear Park Aid, Heated/Cooled
Seats, Windshield Wiper Relays
15 Door Locks
16 Engine Control Module
17 Interior Lights
18 Airbags
19 Not Used
20 OnStar
®
21Adaptive Cruise Control (ACC),
Driver Door Switch
22Power Tilt Wheel, Telescopic
Steering Column, Memory Seat,
Driver Seat Switch, Retractable
Hardtop Switch
23 Ignition Switch, Intrusion Sensor
Fuses Usage
24 Stop Lamp
25Inside Rearview Mirror, Climate
Control System, Column Lock,
Power Sounder
26Instrument Panel Cluster, Head-Up
Display (HUD)
27 Radio, S-Band, CD Changer
28 Tap-Up/Tap-Down Switch
29Climate Control System, Power
Sounder
30Rear Fog Lamps, Diagnostic Link
Connector
31 Power Folding Mirror
32Trunk Close Button, Parking Brake
Solenoid B
33 Power Seats
34 Door Controls
35 Run, Accessory Power
36 Not Used
37 Not Used
38 Rainsense™
39Steering Wheel Control Button
Lights
40 Power Lumbar
41 Passenger’s Side Heated Seat
454

Vehicle Data Collection and Event
Data Recorders
Your vehicle, like other modern motor vehicles, has
a number of sophisticated computer systems that
monitor and control several aspects of the vehicle’s
performance. Your vehicle uses on-board vehicle
computers to monitor emission control components
to optimize fuel economy, to monitor conditions for
airbag deployment and, if so equipped, to provide
anti-lock braking and to help the driver control the
vehicle in difficult driving situations. Some
information may be stored during regular operations
to facilitate repair of detected malfunctions; other
information is stored only in a crash event by
computer systems, such as those commonly called
Event Data Recorders (EDR).
In a crash event, computer systems, such as the
airbag Sensing and Diagnostic Module (SDM)
in your vehicle may record information about the
condition of the vehicle and how it was operated,
such as data related to engine speed, brake
application, throttle position, vehicle speed, safety
belt usage, airbag readiness, airbag performance,
and the severity of a collision. If your vehicle is
equipped with StabiliTrak
®, steering performance,including yaw rate, steering wheel angle, and
lateral acceleration, is also recorded. This
information has been used to improve vehicle
crash performance and may be used to improve
crash performance of future vehicles and
driving safety. Unlike the data recorders on many
airplanes, these on-board systems do not
record sounds, such as conversation of vehicle
occupants.
To read this information, special equipment is
needed and access to the vehicle or the device
that stores the data is required. GM will not access
information about a crash event or share it with
others other than:
with the consent of the vehicle owner or, if the
vehicle is leased, with the consent of the
lessee,
in response to an official request of police or
similar government office,
as part of GM’s defense of litigation through
the discovery process, or
as required by law.
491

Appearance Care (cont.)
Weatherstrips........................................... 445
Windshield and Wiper Blades................... 447
Wood Panels........................................... 445
Ashtray(s).................................................... 178
Audio System.............................................. 285
Audio System(s).......................................... 225
Audio Steering Wheel Controls................. 227
Care of Your CD Player........................... 230
Care of Your CDs.................................... 229
Diversity Antenna System......................... 230
Theft-Deterrent Feature............................ 226
Understanding Radio Reception............... 228
XM™ Satellite Radio Antenna System...... 230
Automatic Door Lock..................................... 76
Automatic Transmission
Fluid........................................................ 384
Operation................................................... 92
Avoid Point/Area, Edit.................................. 257
B
Battery........................................................ 402
Exterior Lighting Battery Saver................. 169
Run-Down Protection............................... 171
Before Leaving on a Long Trip.................... 345Brake
Anti-Lock Brake System (ABS)................. 327
Emergencies............................................ 329
Parking...................................................... 97
System Warning Light.............................. 192
Brakes........................................................ 399
Braking....................................................... 326
Braking in Emergencies............................... 329
Break-In, New Vehicle................................... 87
Bulb Replacement....................................... 412
Headlamp Aiming..................................... 408
Buying New Tires........................................ 428
C
California Fuel............................................. 367
California Proposition 65 Warning................ 364
Canadian Owners........................................... 3
Capacities and Speci cations...................... 458
Carbon Monoxide............... 77,102, 349, 359
Care of
Safety Belts............................................. 445
Your CD Player........................................ 230
Your CDs ................................................. 229
CD
Six-Disc Changer..................................... 302
CD/DVD Player........................................... 305
500

Light (cont.)
Lights On Reminder................................. 202
Malfunction Indicator................................ 196
Passenger Airbag Status Indicator............ 189
Safety Belt Reminder............................... 187
Security................................................... 201
TCS Warning Light.................................. 194
Tire Pressure........................................... 196
Traction Control System (TCS)
Warning................................................ 194
Lighting
Entry/Exit................................................. 170
Limited-Slip Rear Axle................................. 331
Loading Your Vehicle................................... 354
Lockout Protection......................................... 77
Locks
Automatic Door Lock................................. 76
Door.......................................................... 73
Lockout Protection..................................... 77
Power Door............................................... 75
Programmable Automatic Door Unlock....... 76
Loss of Control........................................... 337
Lowering the Retractable Hardtop................ 124
Lumbar
Power Controls............................................ 9M
Magnetic Ride Control................................. 331
Maintenance Schedule
Additional Required Services.................... 467
At Each Fuel Fill...................................... 470
At Least Once a Month............................ 471
At Least Once a Year.............................. 471
Introduction.............................................. 462
Maintenance Footnotes............................ 469
Maintenance Record................................ 477
Maintenance Requirements...................... 462
Normal Maintenance
Replacement Parts............................... 475
Owner Checks and Services.................... 470
Recommended Fluids and Lubricants....... 473
Scheduled Maintenance........................... 465
Using....................................................... 463
Your Vehicle and the Environment............ 462
Malfunction Indicator Light........................... 196
Map Pocket................................................. 122
Maps........................................................... 271
Memory Point, Edit...................................... 250
Memory Seat, Mirrors, Steering Wheel
Controls..................................................... 10
Menu
Setup....................................................... 243
506

P
Paint, Damage............................................ 449
Park Aid...................................................... 175
Park (P)
Shifting Into............................................... 99
Shifting Out of......................................... 100
Parking
Assist....................................................... 175
Brake......................................................... 97
Over Things That Burn............................ 101
Passenger Airbag Status Indicator............... 189
Passenger Compartment Air Filter............... 184
Passenger Position, Safety Belts................... 27
Passenger Sensing System........................... 53
Passing....................................................... 335
Plan Route.................................................. 249
Power
Accessory Outlet(s).................................. 177
Door Locks................................................ 75
Electrical System..................................... 452
Lumbar Controls.......................................... 9
Reclining Seatbacks................................... 11
Retained Accessory (RAP)......................... 89
Seat............................................................ 8
Steering Fluid.......................................... 396Power (cont.)
Tilt Wheel and Telescopic Steering
Column................................................. 141
Windows.................................................... 82
Pretensioners, Safety Belt............................. 27
Problems with Route Guidance................... 283
Programmable Automatic Door Unlock........... 76
Q
Questions and Answers About Safety Belts ... 17
R
Racing or Other Competitive Driving............ 338
Radio.......................................................... 285
Personalization with Home and Away
Feature................................................. 311
Radios........................................................ 225
Care of Your CD Player........................... 230
Care of Your CDs.................................... 229
Theft-Deterrent......................................... 226
Understanding Reception ......................... 228
Rainsense™ Wipers.................................... 145
Raising the Retractable Hardtop.................. 125
Reading Lamps........................................... 171
Rear Axle.................................................... 407
Limited-Slip.............................................. 331
508