Page 1 of 480

Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 8
Rear Seats
............................................. 14
Safety Belts
............................................ 17
Child Restraints
...................................... 39
Airbag System
........................................ 65
Restraint System Check
......................... 82
Features and Controls
................................ 85
Keys
....................................................... 87
Doors and Locks
.................................... 92
Windows
................................................ 96
Theft-Deterrent Systems
......................... 98
Starting and Operating Your Vehicle
....... 101
Mirrors
.................................................. 122
OnStar
®System
................................... 129Universal Home Remote System
.......... 132
Storage Areas
...................................... 143
Sunroof
................................................ 147
Instrument Panel
....................................... 149
Instrument Panel Overview
................... 152
Climate Controls
................................... 170
Warning Lights, Gages, and
Indicators
.......................................... 174
Driver Information Center (DIC)
............ 192
Audio System(s)
................................... 201
Driving Your Vehicle
................................. 233
Your Driving, the Road, and
Your Vehicle
..................................... 234
Towing
................................................. 294
2007 HUMMER H3 Owner ManualM
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Page 7 of 480

Front Seats..................................................... 8
Manual Seats................................................ 8
Power Seats................................................. 9
Power Lumbar.............................................. 9
Heated Seats.............................................. 10
Reclining Seatbacks.................................... 10
Head Restraints.......................................... 13
Rear Seats.................................................... 14
60/40 Split Bench Seat............................... 14
Safety Belts.................................................. 17
Safety Belts: They Are for Everyone........... 17
Questions and Answers About Safety Belts.... 21
How to Wear Safety Belts Properly............. 22
Driver Position............................................. 22
Shoulder Belt Height Adjustment................. 30
Safety Belt Use During Pregnancy.............. 31
Right Front Passenger Position................... 31
Rear Seat Passengers................................ 32
Rear Safety Belt Comfort Guides................ 35
Safety Belt Pretensioners............................ 38
Safety Belt Extender................................... 38
Child Restraints............................................ 39
Older Children............................................. 39
Infants and Young Children......................... 42Child Restraint Systems.............................. 45
Where to Put the Restraint.......................... 49
Lower Anchors and Tethers for
Children (LATCH).................................... 51
Securing a Child Restraint in a
Rear Outside Seat Position...................... 57
Securing a Child Restraint in the
Center Rear Seat Position....................... 60
Securing a Child Restraint in the
Right Front Seat Position......................... 60
Airbag System.............................................. 65
Where Are the Airbags?.............................. 69
When Should an Airbag In ate?.................. 71
What Makes an Airbag In ate?................... 73
How Does an Airbag Restrain?................... 73
What Will You See After an Airbag In ates? ... 74
Passenger Sensing System......................... 75
Servicing Your Airbag-Equipped Vehicle...... 80
Adding Equipment to Your
Airbag-Equipped Vehicle.......................... 81
Restraint System Check............................... 82
Checking the Restraint Systems.................. 82
Replacing Restraint System Parts
After a Crash........................................... 83
Section 1 Seats and Restraint Systems
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Page 10 of 480

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.
{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.
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Page 12 of 480
{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.
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Page 15 of 480
3. Pull the cushion forward until it rests in the
footwell.
Notice:Folding a rear seat with the safety
belts still fastened may cause damage to the
seat or the safety belts. Always unbuckle
the safety belts and return them to their normal
stowed position before folding a rear seat.4. Lift the latch on top of the seatback and pull
the seatback forward. Fold the seatback down
until it is nearly at.
5. If the seatback will not fold nearly at, try
moving the front seat forward and/or moving
the front seatback more upright.
6. Repeat the steps for the other half of the
60/40 split bench seat.
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Page 16 of 480
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.
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Page 17 of 480

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.
{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 or be ejected from it. You can 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 passengers’
belts are fastened 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 to remind you and your
passengers to buckle your safety belts. SeeSafety
Belt Reminder Light on page 177andPassenger
Safety Belt Reminder Light on page 177.
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Page 18 of 480
In most states and in all Canadian provinces,
the law says to wear safety belts. Here is
why:They work.
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 bad 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!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.
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