2009 HUMMER H3 wheel

Seats and Restraint
System............................... 1-1
Head Restraints
.............. 1-2
Front Seats
.................... 1-3
Rear Seats
.................... 1-7
Safety Belts
..................1-11
Child Restraints
.............1-25
Airbag System
..............1-46
Restraint System
Check
......................1-60
Features and Controls...... 2-1
Keys
............................. 2-2
Doors and Locks
............ 2-5
Windows
........................ 2-9
Theft-Deterrent
Systems
...................2-11
Starting and Operating Your
Vehicle
.....................2-15
Mirrors
.........................2-33
Object Detection
Systems
...................2-36
OnStar
®System
............2-39Universal Home
Remote System
.........2-42
Storage Areas
...............2-47
Sunroof
........................2-50
Instrument Panel............... 3-1
Instrument Panel
Overview
.................... 3-4
Climate Controls
............3-19
Warning Lights, Gages,
and Indicators
............3-22
Driver Information
Center (DIC)
.............3-34
Audio System(s)
............3-41
Driving Your Vehicle......... 4-1
Your Driving, the Road,
and the Vehicle
........... 4-1
Towing
........................4-40
Service and
Appearance Care............... 5-1
Service
.......................... 5-3
Fuel
.............................. 5-5
Checking Things Under
the Hood
.................... 5-9
Rear Axle
.....................5-38Four-Wheel Drive
..........5-38
Front Axle
....................5-39
Headlamp Aiming
..........5-39
Bulb Replacement
.........5-41
Windshield Wiper Blade
Replacement
.............5-44
Tires
...........................5-44
Appearance Care
..........5-83
Vehicle Identication
......5-90
Electrical System
...........5-91
Capacities and
Specications
............5-96
Maintenance Schedule...... 6-1
Maintenance Schedule
..... 6-1
Customer Assistance
Information........................ 7-1
Customer Assistance and
Information
................. 7-1
Reporting Safety
Defects
.....................7-14
Vehicle Data Recording
and Privacy
...............7-16
Index....................................i-1
2009 HUMMER H3/H3T Owner ManualM

Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
g:Audio Steering Wheel Controls
or OnStar®
$:Brake System Warning Light
":Charging System
I:Cruise Control
B:Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.:Fuel Gage
+:Fuses
i:Headlamp High/Low-Beam
Changer
j:LATCH System Child Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
}:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
F:Traction Control
M:Windshield Washer Fluid
iv Preface

Why Safety Belts Work
When you ride in or on anything,
you go as fast as it goes.
Take the simplest vehicle. Suppose
it is just a seat on wheels.Put someone on it.
Get it up to speed. Then stop the
vehicle. The rider does not stop.
1-12 Seats and Restraint System

The vehicle may have the following
airbags:
A seat-mounted side impact
airbag for the driver.
A seat-mounted side impact
airbag for the right front
passenger.
All of the airbags in the vehicle will
have the word AIRBAG embossed in
the trim or on an attached label near
the deployment opening.
For frontal airbags, the word
AIRBAG will appear on the middle
part of the steering wheel for
the driver and on the instrument
panel for the right front passenger.With seat-mounted side impact
airbags, the word AIRBAG
will appear on the side of the
seatback closest to the door.
With roof-rail airbags, the word
AIRBAG will appear along the
headliner or trim.
Airbags are designed to supplement
the protection provided by safety
belts. Even though today’s airbags
are also designed to help reduce
the risk of injury from the force of an
inating bag, all airbags must
inate very quickly to do their job.Here are the most important things
to know about the airbag system:
{CAUTION
You can be severely injured or
killed in a crash if you are not
wearing your safety belt — even if
you have airbags. Airbags are
designed to work with safety
belts, but do not replace them.
Also, airbags are not designed to
deploy in every crash. In some
crashes safety belts are your only
restraint. SeeWhen Should an
Airbag Inflate? on page 1-50.
Wearing your safety belt during a
crash helps reduce your chance
of hitting things inside the vehicle
or being ejected from it. Airbags
are “supplemental restraints” to
the safety belts. Everyone in your
vehicle should wear a safety belt
properly — whether or not there is
an airbag for that person.
Seats and Restraint System 1-47

Where Are the Airbags?
The driver frontal airbag is in the
middle of the steering wheel.The right front passenger frontal
airbag is in the instrument panel on
the passenger’s side.
If the vehicle has seat-mounted side
impact airbags for the driver and
right front passenger, they are in the
side of the seatbacks closest to
the door.
Driver Side shown, Passenger
Side similar
Seats and Restraint System 1-49

The roof-rail airbags for the driver,
right front passenger, and second
row outboard passengers are in the
ceiling above the side windows.
{CAUTION
If something is between an
occupant and an airbag, the
airbag might not inate properly or
it might force the object into that
person causing severe injury or
even death. The path of an
inating airbag must be kept
clear. Do not put anything
between an occupant and an
airbag, and do not attach or put
anything on the steering wheel
hub or on or near any other
airbag covering.
Do not use seat accessories that
block the ination path of a
seat-mounted side impact airbag.
Never secure anything to the roof
of a vehicle with roof-rail airbags
by routing a rope or tie down
through any door or window
opening. If you do, the path of an
inating roof-rail airbag will be
blocked.
When Should an Airbag
Inate?
Frontal airbags are designed to
inate in moderate to severe frontal
or near-frontal crashes to help
reduce the potential for severe
injuries mainly to the driver’s or right
front passenger’s head and chest.
However, they are only designed to
inate if the impact exceeds a
predetermined deployment
threshold. Deployment thresholds
are used to predict how severe a
crash is likely to be in time for the
airbags to inate and help restrain
the occupants.
Whether the frontal airbags will or
should deploy is not based on
how fast your vehicle is traveling.
It depends largely on what you
hit, the direction of the impact,
and how quickly your vehicle
slows down. Driver Side shown, Passenger
Side similar
1-50 Seats and Restraint System

determined by the location and
severity of the side impact. In a
rollover event, roof-rail airbag
deployment is determined by the
direction of the roll.
What Makes an Airbag
Inate?
In a deployment event, the sensing
system sends an electrical signal
triggering a release of gas from the
inator. Gas from the inator lls the
airbag causing the bag to break out
of the cover and deploy. The inator,
the airbag, and related hardware are
all part of the airbag module.
Frontal airbag modules are located
inside the steering wheel and
instrument panel. For vehicles with
seat-mounted side impact airbags,
there are airbag modules in the side
of the front seatbacks closest to
the door. For vehicles with roof-rail
airbags, there are airbag modules
in the ceiling of the vehicle, near the
side windows that have occupant
seating positions.
How Does an Airbag
Restrain?
In moderate to severe frontal or
near frontal collisions, even belted
occupants can contact the steering
wheel or the instrument panel. In
moderate to severe side collisions,
even belted occupants can contact
the inside of the vehicle.
Airbags supplement the protection
provided by safety belts.
Frontal airbags distribute the force of
the impact more evenly over the
occupant’s upper body, stopping the
occupant more gradually.
Seat-mounted side impact and
roof-rail airbags distribute the force of
the impact more evenly over the
occupant’s upper body.
Rollover capable roof-rail airbags are
designed to help contain the head
and chest of occupants in the
outboard seating positions in the
rst, second, and third rows. The
rollover capable roof-rail airbags are
designed to help reduce the risk offull or partial ejection in rollover
events, although no system can
prevent all such ejections.
But airbags would not help in many
types of collisions, primarily because
the occupant’s motion is not toward
those airbags. SeeWhen Should
an Airbag Inflate? on page 1-50
for more information.
Airbags should never be regarded
as anything more than a supplement
to safety belts.
What Will You See After
an Airbag Inates?
After the frontal airbags and
seat-mounted side impact airbags
inate, they quickly deate, so
quickly that some people may not
even realize an airbag inated.
Roof-rail airbags may still be at least
partially inated for some time after
they deploy. Some components of
the airbag module may be hot for
several minutes. For location of the
airbag modules, seeWhat Makes an
Airbag Inflate? on page 1-52.
1-52 Seats and Restraint System

seats, safety belts, the airbag
sensing and diagnostic module,
steering wheel, instrument panel,
roof-rail airbag modules, ceiling
headliner or pillar garnish trim,
overhead console, front sensors,
side impact sensors, rollover
sensor module, or airbag wiring
can affect the operation of the
airbag system.
In addition, the vehicle has a
passenger sensing system for the
right front passenger position,
which includes sensors that are
part of the passenger seat.
The passenger sensing system
may not operate properly if the
original seat trim is replaced with
non-GM covers, upholstery or
trim, or with GM covers,
upholstery or trim designed for a
different vehicle. Any object, such
as an aftermarket seat heater or a
comfort enhancing pad or device,
installed under or on top of theseat fabric, could also interfere
with the operation of the
passenger sensing system.
This could either prevent proper
deployment of the passenger
airbag(s) or prevent the
passenger sensing system from
properly turning off the passenger
airbag(s). SeePassenger
Sensing System on page 1-54.
If you have any questions, call
Customer Assistance. The phone
numbers and addresses for
Customer Assistance are in
Step Two of the Customer
Satisfaction Procedure in this
manual. SeeCustomer
Satisfaction Procedure on
page 7-1.
If the vehicle has rollover
roof-rail airbags, seeDifferent
Size Tires and Wheels on
page 5-61for additional
important information.Q:Because I have a disability,
I have to get my vehicle
modied. How can I nd out
whether this will affect my
airbag system?
A:If you have questions, call
Customer Assistance. The phone
numbers and addresses for
Customer Assistance are in
Step Two of the Customer
Satisfaction Procedure in this
manual. SeeCustomer
Satisfaction Procedure on
page 7-1.
In addition, your dealer/retailer and
the service manual have information
about the location of the airbag
sensors, sensing and diagnostic
module and airbag wiring.
Seats and Restraint System 1-59