Page 379 of 480

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 In ation 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 5-61.
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.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation (DOT) motor vehicle
safety standards. The DOT code includes the Tire
Identi cation Number (TIN), an alphanumeric designator
which can also identify the tire manufacturer, production
plant, brand and date of production.GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-31.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-31.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 4-31.
Intended Outboard Sidewall:The side of an
asymmetrical tire, that must always face outward when
mounted on a vehicle.
KiloPascal (kPa):The metric unit for air pressure.
Light Truck (LT-Metric) Tire:A tire used on light duty
trucks and some multipurpose passenger vehicles.
Load Index:An assigned number ranging from 1 to 279
that corresponds to the load carrying capacity of a tire.
Maximum In ation Pressure:The maximum air
pressure to which a cold tire may be in ated. The
maximum air pressure is molded onto the sidewall.
Maximum Load Rating:The load rating for a tire at the
maximum permissible in ation pressure for that tire.
Maximum Loaded Vehicle Weight:The sum of curb
weight; accessory weight; vehicle capacity weight;
and production options weight.
5-59
Page 389 of 480

If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM
original equipment parts. This way, you will be sure to
have the right wheel, wheel bolts and wheel nuts
for your vehicle.
{CAUTION:
Using the wrong replacement wheels, wheel
bolts or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-72for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used
or how far it’s been driven. It could fail
suddenly and cause a crash. If you have to
replace a wheel, use a new GM original
equipment wheel.
5-69
Page 426 of 480
Fuse Usage
1 Empty
2 Steering Wheel Radio Controls
3 Power Door Locks
4 Empty
5 Empty
6 Empty
7 Empty
8 Empty
9 Empty
10Turn Signal and Hazard Lamp
Flashers
Fuse Usage
11 Power Seats
12Electronic Level Control (ELC)
Compressor
13 Liftgate and Endgate
14 Rear Auxiliary Power Outlet
15Electronic Level Control (ELC)
Compressor Relay and Height
Sensor
16 Heated Mirrors
17 Power Mirrors
18 Ignition 1 Module
19 Turn Signal Switch
21 Rear Defogger
22 Air Bag Module
24 TCC Switch
25 HVAC Blower Motor
26HVAC Mode and Temperature
Motors and Head-Up Display
28 Not Used
29 Windshield Wipers and Washer
30Instrument Panel Cluster, Body
Control Module (BCM),
PASS-Key
®III
31 Park Lock Ignition Key Solenoid
32 Rear Window Wiper/Washer
5-106
Page 477 of 480

Safety Belts (cont.)
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-40
Rear Seat Passengers.................................1-34
Right Front Passenger Position......................1-34
Safety Belt Extender....................................1-42
Safety Belt Use During Pregnancy.................1-34
Safety Belts Are for Everyone.......................1-20
Shoulder Belt Height Adjuster........................1-33
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Seats
Captain Chairs............................................1-13
Four-Way Manual Driver Seat......................... 1-3
Head Restraints............................................ 1-7
Heated Seats............................................... 1-5
Manual Lumbar............................................. 1-5
Manual Passenger......................................... 1-3
Memory.....................................................2-47
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-6
Six-Way Power Seats.................................... 1-4
Split Bench Seats......................................... 1-8
Stowable Seat............................................1-17
Secondary Latch System.................................5-84Securing a Child Restraint
Center Rear Seat Position............................1-62
Designed for the LATCH System...................1-60
Rear Outside Seat Position...........................1-60
Right Front Seat Position..............................1-64
Security Message, PASS-Key
®III ......................3-57
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-5
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-46
Publications Ordering Information...................7-12
Traction System Warning Message.................3-51
Vehicle Soon Message.................................3-59
Servicing Your Airbag-Equipped Vehicle..............1-82
Setting the Time.............................................3-76
Sheet Metal Damage.....................................5-101
Shifting Into Park (P).......................................2-27
Shifting Out of Park (P)...................................2-28
Shoulder Belt Height Adjuster...........................1-33
Signals, Turn and Lane-Change.......................... 3-7
Spare Tire
Installing....................................................5-80
Removing...................................................5-74
Storing.......................................................5-88
13