
(E) Rim Diameter:Diameter of the wheel in
inches.
(F) Service Description
:The service description
indicates the load range and speed rating of a
tire. The load index can range from 1 to 279.
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,
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. SeeInflation - Tire Pressure on
page 5-60.
Curb Weight
: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 Identification Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight Rating. See
Loading Your Vehicle on page 4-20.
GAWR FRT
:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle
on page 4-20.
5-57 

Fuse Usage
9 Right Low-Beam Headlamp
10 Daytime Running Lamps 2 (DRL)
11Fuel System Control Module
Ignition (Gas)
12 Daytime Running Lamps 1 (DRL)
13 Auxiliary Stoplamp
14Fuel Operated Heater Module
(Diesel)
15Fuel System Control Module
Battery (Gas)
16 Left Stoplamp, Trailer Turn Signal
17 Canister Vent Solenoid (Gas)
18 Empty
19 Empty
20 Body Control Module 1
21 Special Equipment Option (SEO)
22 Body Control Module 4
23 Body Control Module 6
24 Empty
25 Body Control Module 7
26 Body Control Module 3
27 Body Control Module 5
28 Empty
29 EmptyFuse Usage
30 Instrument Panel Cluster
31 Empty
32 Brake Switch
33 Auxiliary Power Outlet
34 Airbag
35 Trailer Wiring
36 Steering Wheel Sensor (Gas)
37 Body Control Module 2
38Cigarette Lighter, Data Link
Controller
39 Windshield Wiper
40 Empty
41 Windshield Washer
42 Empty
43 Horn
44Transmission Control Module
Battery
45 Empty
46 Oxygen Sensor 1 (Gas)
47Transmission Control Module
Ignition
48 Engine Control Module Ignition
49 Mass Airflow Sensor, Canister Vent
50 Engine Control Module, Powertrain
5-108 

Maintenance Footnotes
(Gasoline Engine)
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine, see
the maintenance schedule section in the DURAMAX
®
Diesel manual.
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
#Lubricate the front suspension, kingpin bushings,
steering linkage, and rear driveline center splines.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chafing, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.(b)Visually inspect front and rear suspension and
steering system for damaged, loose, or missing parts,
signs of wear, or lack of lubrication. Inspect power
steering lines and hoses for proper hook-up, binding,
leaks, cracks, chafing, etc.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen, or deteriorated. Inspect all pipes,
fittings, and clamps; replace with genuine parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Inspect wiper blades for wear, cracking, or
contamination. Clean the windshield and wiper blades, if
contaminated. Replace wiper blades that are worn or
damaged. See Windshield Wiper Blade Replacement on
page 5-52andWindshield and Wiper Blades on
page 5-99 for more information.
(e)Make sure the safety belt reminder light and safety
belt assemblies 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 see Checking
the Restraint Systems on page 1-75.
6-8 

Recommended Fluids and
Lubricants
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine, see
the maintenance schedule section in the DURAMAX
®
Diesel manual.
Fluids and lubricants identified below by name, part
number, or specification can be obtained from your
dealer/retailer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets
GM Standard GM6094M and
displays the American Petroleum
Institute Certified for Gasoline
Engines starburst symbol. To
determine the proper viscosity for
your vehicle’s engine, seeEngine
Oil (Gasoline Engine) on page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only DEX-COOL
®
Coolant. SeeEngine Coolant on
page 5-23.
Usage Fluid/Lubricant
Hydraulic Brake
SystemDelco®Supreme 11 Brake Fluid or
equivalent DOT-3 brake fluid.
Windshield
WasherOptikleen
®Washer Solvent.
Parking Brake
Cable GuidesChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
TransmissionDEXRON
®-VI Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Chassis
LubricationChassis Lubricant
(GM Part No. U.S. 12377985, in
Canada 88901242) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
6-14 

F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-101
Fixed Mast Antenna........................................3-83
Flashers, Hazard Warning.................................. 3-6
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-77
Flat Tire, Changing.........................................5-78
Flat Tire, Storing.............................................5-93
Fluid.............................................................5-20
Power Steering...........................................5-34
Windshield Washer......................................5-35
Front Axle......................................................5-45
Fuel............................................................... 5-5
Additives...................................................... 5-7
California Fuel.............................................. 5-6
E85 (85% Ethanol)........................................ 5-8
Filling a Portable Fuel Container....................5-12
Filling the Tank...........................................5-10
Fuels in Foreign Countries.............................. 5-9
Gage.........................................................3-41
Gasoline Octane........................................... 5-6
Gasoline Specifications.................................. 5-6
Regulator...................................................2-21
Fuses
Engine Compartment Fuse Block.................5-106
Floor Console Fuse Block...........................5-104
Fuses and Circuit Breakers.........................5-104
Windshield Wiper.......................................5-104
G
Gage
Engine Coolant Temperature.........................3-35
Fuel..........................................................3-41
Oil Pressure...............................................3-38
Speedometer..............................................3-26
Voltmeter Gage...........................................3-32
Gasoline
Octane........................................................ 5-6
Specifications............................................... 5-6
Glass, Enhanced Technology............................2-16
GM Mobility Reimbursement Program.................. 7-6
H
Hazard Warning Flashers................................... 3-6
Headlamp Wiring...........................................5-104
Headlamps....................................................5-48
Bulb Replacement.......................................5-48
Daytime Running Lamps...............................3-15
Exterior Lamps............................................3-13
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-50
Halogen Bulbs............................................5-48
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-14
Heater...........................................................3-19
5 

N
Navigation System, Privacy..............................7-18
New Vehicle Break-In......................................2-18
Noise Control System, Tampering......................5-46
O
Odometer......................................................3-26
Odometer, Trip...............................................3-26
Off-Road Recovery..........................................4-10
Oil
Engine.......................................................5-15
Pressure Gage............................................3-38
Pressure Light.............................................3-39
Oil, Engine Oil Life System..............................5-18
Older Children, Restraints................................1-29
Online Owner Center........................................ 7-4
OnStar, Privacy..............................................7-18
Other Warning Devices...................................... 3-6
Outlet Adjustment............................................3-21
Outlets
Accessory Power.........................................3-18
Outside
Camper-Type Mirrors....................................2-32
Convex Mirror.............................................2-33
Heated Mirrors............................................2-34
Manual Mirror.............................................2-32
Power Mirrors.............................................2-33
Owner Checks and Services.............................6-10
Owners, Canadian............................................... ii
P
Paint, Damage..............................................5-101
Park Brake....................................................2-26
Park (P)
Shifting Into................................................2-27
Shifting Out of............................................2-29
Parking
Over Things That Burn.................................2-29
Passenger Airbag Status Indicator.....................3-30
Passenger Sensing System..............................1-69
Passing.........................................................4-10
PASS-Key
®III+..............................................2-16
PASS-Key®III+ Operation................................2-17
Perchlorate Materials Requirements, California...... 5-4
Power
Door Locks.................................................. 2-6
Retained Accessory (RAP)............................2-20
Seat............................................................ 1-3
Steering Fluid.............................................5-34
Windows....................................................2-14
Privacy..........................................................7-16
Event Data Recorders..................................7-17
Navigation System.......................................7-18
OnStar.......................................................7-18
Radio Frequency Identification.......................7-18
Programmable Automatic Door Locks.................. 2-7
8 

Seats
Power Seat.................................................. 1-3
Rear Seat Operation...................................... 1-6
Reclining Seatbacks...................................... 1-4
Secondary Latch System.................................5-90
Securing a Child Restraint
Rear Seat Position......................................1-46
Right Front Seat Position......................1-48, 1-52
Security Light.................................................3-40
Service........................................................... 5-3
Accessories and Modifications......................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-5
California Pershlorate Materials Requirements.... 5-4
California Proposition 65 Warning.................... 5-3
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-36
Publications Ordering Information...................7-15
Service, Scheduling Appointments....................... 7-9
Servicing Your Airbag-Equipped Vehicle..............1-73
Sheet Metal Damage.....................................5-101
Shifting Into Park (P).......................................2-27
Shifting Out of Park (P)...................................2-29
Signals, Turn and Lane-Change.......................... 3-8
Sliding Side Door............................................. 2-9
Spare Tire.....................................................5-94
Installing....................................................5-82
Removing...................................................5-79
Storing.......................................................5-93
Specifications, Capacities...............................5-110Speedometer..................................................3-26
StabiliTrak®System.......................................... 4-5
StabiliTrak®Indicator Light................................3-34
Starting the Engine.........................................2-20
Steering.......................................................... 4-7
Steering Wheel Controls, Audio.........................3-82
Steering Wheel, Tilt Wheel................................. 3-7
Storage Areas................................................2-34
Stuck in Sand, Mud, Ice, or Snow.....................4-19
Sun Visors.....................................................2-16
Swing-Out Side Door, 60/40.............................2-10
Swing-Out Windows........................................2-15
T
Taillamps.......................................................5-51
Theft-Deterrent, Radio.....................................3-82
Theft-Deterrent Systems...................................2-16
PASS-Key
®III+...........................................2-16
PASS-Key®III+ Operation.............................2-17
Tilt Wheel........................................................ 3-7
Time, Setting..................................................3-65
Tire
Pressure Light.............................................3-35
Tires.............................................................5-53
Aluminum Wheels, Cleaning........................5-100
Buying New Tires........................................5-70
Chains.......................................................5-76
Changing a Flat Tire....................................5-78
10