HUMMER H3 2008 Owners Manual

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-8
Safety Belts
.............................................1-10
Child Restraints
.......................................1-30
Airbag System
.........................................1-54
Restraint System Check
............................1-69
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-7
Windows
.................................................2-11
Theft-Deterrent Systems
............................2-14
Starting and Operating Your Vehicle
...........2-18
Mirrors
....................................................2-38
Object Detection Systems
..........................2-44
OnStar
®System
......................................2-48
Universal Home Remote System
................2-51
Storage Areas
.........................................2-56
Sunroof
..................................................2-60
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-25
Driver Information Center (DIC)
..................3-40
Audio System(s)
.......................................3-48Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-48
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-11
Rear Axle
...............................................5-45
Four-Wheel Drive
.....................................5-46
Front Axle
...............................................5-46
Headlamp Aiming
.....................................5-46
Bulb Replacement
....................................5-49
Windshield Wiper Blade Replacement
.........5-52
Tires
......................................................5-54
Appearance Care
.....................................5-91
Vehicle Identication
...............................5-100
Electrical System
....................................5-101
Capacities and Specications
...................5-107
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance Information.................... 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-14
Vehicle Data Recording and Privacy
...........7-16
Index.................................................................1
2008 HUMMER H3 Owner ManualM

GENERAL MOTORS, GM, the GM Emblem, HUMMER,
and H3 are registered trademarks of General Motors
Corporation.
This manual includes the latest information at the time it
was printed. We reserve the right to make changes
after that time without further notice. For vehicles rst
sold in Canada, substitute the name “General Motors of
Canada Limited” for HUMMER whenever it appears
in this manual.
This manual describes features that may be available in
this model, but your vehicle may not have all of them.
For example, more than one entertainment system may
be offered or your vehicle may have been ordered
without a front passenger or rear seats.
Keep this manual in the vehicle for quick reference.
Canadian Owners
A French language copy of this manual can be obtained
from your dealer/retailer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
www.helminc.com
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide en français
auprès de concessionnaire ou à l’adresse suivante:
Helm Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
www.helminc.com
Litho in U.S.A.
Part No. 15862068 A First Printing
©2007 General Motors Corporation. All Rights Reserved.
ii

Using this Manual
Many people read the owner manual from beginning to
end when they rst receive their new vehicle to learn
about the vehicle’s features and controls. Pictures
and words work together to explain things.
Index
A good place to quickly locate information about
the vehicle is the Index in the back of the manual.
It is an alphabetical list of what is in the manual
and the page number where it can be found.
Safety Warnings and Symbols
There are a number of safety cautions in this book.
A box with the word CAUTION is used to tell about
things that could hurt you or others if you were to
ignore the warning.
{CAUTION:
These mean there is something that could hurt
you or other people.
We tell you what the hazard is and what to do to help
avoid or reduce the hazard. Please read these cautions.
If you do not, you or others could be hurt.
A circle with a slash
through it is a safety
symbol which means
“Do Not,” “Do Not do
this” or “Do Not let
this happen.”
iii

Vehicle Damage Warnings
You will also nd notices in this manual.
Notice:These mean there is something that
could damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly.
The notice tells what to do to help avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors
or in different words.
There are also warning labels on the vehicle which
use the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along
with the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
iv

Front Seats......................................................1-2
Manual Seats................................................1-2
Power Seats..................................................1-3
Power Lumbar...............................................1-3
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-4
Head Restraints.............................................1-7
Rear Seats.......................................................1-8
60/40 Split Bench Seat...................................1-8
Safety Belts...................................................1-10
Safety Belts: They Are for Everyone................1-10
How to Wear Safety Belts Properly.................1-16
Lap-Shoulder Belt.........................................1-24
Safety Belt Use During Pregnancy..................1-29
Safety Belt Extender.....................................1-30
Child Restraints.............................................1-30
Older Children..............................................1-30
Infants and Young Children............................1-33
Child Restraint Systems.................................1-37
Where to Put the Restraint.............................1-40
Lower Anchors and Tethers for
Children (LATCH)......................................1-42Securing a Child Restraint in a
Rear Outside Seat Position.........................1-48
Securing a Child Restraint in the
Center Rear Seat Position..........................1-50
Securing a Child Restraint in the
Right Front Seat Position............................1-51
Airbag System...............................................1-54
Where Are the Airbags?................................1-57
When Should an Airbag Inate?.....................1-59
What Makes an Airbag Inate?.......................1-60
How Does an Airbag Restrain?.......................1-60
What Will You See After an Airbag Inates?.....1-61
Passenger Sensing System............................1-62
Servicing Your Airbag-Equipped Vehicle...........1-67
Adding Equipment to Your
Airbag-Equipped Vehicle.............................1-68
Restraint System Check..................................1-69
Checking the Restraint Systems......................1-69
Replacing Restraint System Parts
After a Crash............................................1-70
Section 1 Seats and Restraint Systems
1-1

Front Seats
Manual Seats
{CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver’s seat while the vehicle
is moving. The sudden movement could startle
and confuse you, or make you push a pedal
when you do not want to. Adjust the driver’s
seat only when the vehicle is not moving.To move a manual seat forward or rearward:
1. Lift the bar to unlock
the seat.
2. Slide the seat to the
desired position and
release the bar.
Try to move the seat with your body to be sure the seat
is locked in place.
1-2

Power Seats
If the vehicle has power
seats, the controls used to
operate them are located
on the outboard side of
the seats.
To adjust the seat, do any of the following:
Move the seat forward or rearward by sliding the
control forward or rearward.
Raise or lower the front part of the seat cushion
by moving the front of the control up or down.
Raise or lower the rear part of the seat cushion
by moving the rear of the control up or down.
Power Lumbar
If your vehicle has this
feature, the control is
located on the outboard
side of the seat(s).
Press and hold the front of the control until you have
the desired lumbar support. To decrease lumbar
support, press and hold the rear of the control.
1-3

Heated Seats
If your vehicle has this
feature, the controls are
located on the outboard
side of the front seats.
This feature will heat the cushion and back of the seats.
Press the top of the switch to turn the heat to the
high setting. Press the bottom of the switch to turn the
heat to the low setting. Put the switch in the center
position to turn the heat off.The ignition must be on for the heated seat feature to
work. The seat will heat to the last setting if the ignition
has been turned off and then turned back on.
The passenger’s safety belt must be fastened for the
heated seat feature to work on the passenger’s seat.
Reclining Seatbacks
{CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver’s seat while the vehicle
is moving. The sudden movement could startle
and confuse you, or make you push a pedal
when you do not want to. Adjust the driver’s
seat only when the vehicle is not moving.
1-4

{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That
could cause injury to the person sitting there.
Always push and pull on the seatback to be
sure it is locked.
The seats have manual reclining seatbacks. The lever
used to operate them is located on the outboard side
of the seats.
To recline the seatback:
1. Lift the recline lever and move the seatback to
the desired position, then release the lever to
lock the seatback in place.
2. Push and pull on the seatback to make sure
it is locked.
To return the seatback to an upright position:
1. Lift the lever fully without applying pressure to
the seatback and the seatback will return to
the upright position.
2. Push and pull on the seatback to make sure
it is locked.
1-5

{CAUTION:
Sitting in a reclined position when your vehicle
is in motion can be dangerous. Even if you
buckle up, your safety belts cannot do their
job when you are reclined like this.
The shoulder belt cannot do its job because it
will not be against your body. Instead, it will be
in front of you. In a crash, you could go into it,
receiving neck or other injuries.
The lap belt cannot do its job either. In a
crash, the belt could go up over your
abdomen. The belt forces would be there,
not at your pelvic bones. This could cause
serious internal injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit
well back in the seat and wear your safety
belt properly.
Do not have a seatback reclined if your vehicle is moving.
1-6