seats 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

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

Rear Seats
60/40 Split Bench Seat
The 60/40 split bench seats can be folded to give
you more cargo space.
Folding the Seatbacks
To fold the rear seatback(s), do the following:
1. Make sure that nothing is on, under,
or in front of the seat.2. Place your hand under
the front of the seat
cushion and lift
the cushion up while
moving it forward.
There is a label below the seat cushion with
instructions to aid in seat operation.
1-8

{CAUTION:
Do not let anyone ride where he or she cannot
wear a safety belt properly. If you are in a crash
and you are not wearing a safety belt, your
injuries can be much worse. You can hit things
inside the vehicle harder or be ejected from it
and be seriously injured or killed. In the same
crash, you might not be, if you are buckled up.
Always fasten your safety belt, and check that
your passenger(s) are restrained properly too.
{CAUTION:
It is extremely dangerous to ride in a cargo area,
inside or outside of a vehicle. In a collision,
people riding in these areas are more likely
to be seriously injured or killed. Do not allow
people to ride in any area of your vehicle that
is not equipped with seats and safety belts.
Be sure everyone in your vehicle is in a seat
and using a safety belt properly.Your vehicle has indicators as a reminder to buckle your
safety belts. SeeSafety Belt Reminders on page 3-28.
In most states and in all Canadian provinces, the
law requires wearing safety belts. Here is why:
You never know if you will be in a crash. If you do have
a crash, you do not know if it will be a serious one.
A few crashes are mild, and some crashes can be
so serious that even buckled up, a person would not
survive. But most crashes are in between. In many
of them, people who buckle up can survive and
sometimes walk away. Without belts they could
have been badly hurt or killed.
After more than 40 years of safety belts in vehicles,
the facts are clear. In most crashes buckling up
does matter... a lot!
1-11

Lap-Shoulder Belt
All seating positions in your vehicle have a
lap-shoulder belt.
Here is how to wear a lap-shoulder belt properly.
1. Adjust the seat, if the seat is adjustable, so you can
sit up straight. To see how, see “Seats” in the Index.
2. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
The lap-shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the
belt go back slightly to unlock it. Then pull the
belt across you more slowly.
If you ever pull the shoulder portion of a passenger
belt out all the way, you may engage the child
restraint locking feature. If this happens, just let
the belt go back all the way and start again.
Engaging the child restraint locking feature may
affect the passenger sensing system. See
Passenger Sensing System on page 1-62.3. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, seeSafety Belt
Extender on page 1-30.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if necessary.
4. If equipped with a shoulder belt height adjuster,
move it to the height that is right for you. Improper
shoulder belt height adjustment could reduce
the effectiveness of the safety belt in a crash.
See “Shoulder Belt Height Adjustment” later in
this section.
1-24