2008 HUMMER H3 lock

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

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

{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

Returning the Seatbacks to an
Upright Position
{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.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.To return the seatback(s) to the upright position, do the
following:
1. Lift the seatback up and push it rearward all the way.
2. Place your hand under the front of the seat cushion
and lift the cushion while moving it rearward until it
latches into position.
3. Pull forward on the seatback and push down on
the seat cushion to make sure the seat is securely
in place.
Safety Belts
Safety Belts: They Are for Everyone
This part of the manual tells you how to use safety
belts properly. It also tells you some things you should
not do with safety belts.
1-10

How to Wear Safety Belts Properly
This section is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and babies. If a child will be
riding in your vehicle, seeOlder Children on page 1-30
orInfants and Young Children on page 1-33. Follow
those rules for everyone’s protection.
It is very important for all occupants to buckle up.
Statistics show that unbelted people are hurt more often
in crashes than those who are wearing safety belts.
Occupants who are not buckled up can be thrown out
of the vehicle in a crash. And they can strike others
in the vehicle who are wearing safety belts.
First, before you or your passenger(s) wear a safety
belt, there is important information you should know.
Sit up straight and always keep your feet on the oor in
front of you. The lap part of the belt should be worn low
and snug on the hips, just touching the thighs. In a crash,
this applies force to the strong pelvic bones and you
would be less likely to slide under the lap belt. If you slid
under it, the belt would apply force on your abdomen.
This could cause serious or even fatal injuries. The
shoulder belt should go over the shoulder and across
the chest. These parts of the body are best able to take
belt restraining forces.
The shoulder belt locks if there is a sudden stop or crash.
1-16

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

Shoulder Belt Height Adjuster
Your vehicle has a shoulder belt height adjuster for
the driver and right front passenger.
Adjust the height so that the shoulder portion of the belt
is centered on your shoulder. The belt should be away
from your face and neck, but not falling off your shoulder.
Improper shoulder belt height adjustment could reduce
the effectiveness of the safety belt in a crash.
To move it down, press
the release button (A) and
move the height adjuster
to the desired position.
You can move the
height adjuster up just
by pushing up on the
shoulder belt guide.
After you move the height adjuster to where you want it,
try to move it down without pressing the release
button to make sure it has locked into position.
Safety Belt Pretensioners
Your vehicle has safety belt pretensioners for front
outboard occupants. Although you cannot see them,
they are part of the safety belt assembly. They can help
tighten the safety belts during the early stages of a
moderate to severe frontal, near frontal, or rear crash
if the threshold conditions for pretensioner activation
are met. And, if your vehicle has side impact airbags,
safety belt pretensioners can help tighten the safety
belts in a side crash or a rollover event.
Pretensioners work only once. If they activate in a
crash, you will need to get new ones, and probably other
new parts for your safety belt system. SeeReplacing
Restraint System Parts After a Crash on page 1-70.
Rear Safety Belt Comfort Guides
Rear shoulder belt comfort guides may provide added
safety belt comfort for older children who have outgrown
booster seats and for some adults. When installed on
a shoulder belt, the comfort guide positions the belt
away from the neck and head.
1-26

{CAUTION:
Children can be seriously injured or strangled
if a shoulder belt is wrapped around their neck
and the safety belt continues to tighten.
Secure any unused safety belts behind the
child restraint so children cannot reach them.
Pull the shoulder belt all the way out of the
retractor to set the lock, if your vehicle has
one, after the child restraint has been installed.
Be sure to follow the instructions of the child
restraint manufacturer.Notice:Contact between the child restraint LATCH
attachment parts and the vehicle’s safety belt
assembly may cause damage to these parts. Make
sure when securing unused safety belts behind
the child restraint that there is no contact between
the child restraint LATCH attachment parts and
the vehicle’s safety belt assembly.
Folding an empty rear seat with the safety belts
secured may cause damage to the safety belt or the
seat. When removing the child restraint, always
remember to return the safety belts to their normal,
stowed position before folding the rear seat.
1. Attach and tighten the lower attachments to the
lower anchors. If the child restraint does not have
lower attachments or the desired seating position
does not have lower anchors, secure the child
restraint with the top tether and the safety belts.
Refer to your child restraint manufacturer
instructions and the instructions in this manual.
1.1. Find the lower anchors for the desired
seating position.
1.2. Put the child restraint on the seat.
1.3. Attach and tighten the lower attachments on
the child restraint to the lower anchors.
1-46