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
7
Page 22 of 480

Q:If I am a good driver, and I never drive far
from home, why should I wear safety belts?
A:You may be an excellent driver, but if you are
in an accident — even one that is not your
fault — you and your passengers can be hurt.
Being a good driver does not protect you
from things beyond your control, such as
bad drivers.
Most accidents occur within 25 miles (40 km)
of home. And the greatest number of serious
injuries and deaths occur at speeds of less
than 40 mph (65 km/h).
Safety belts are for everyone.
How to Wear Safety Belts Properly
This part 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, see
Older Children on page 39orInfants and Young
Children on page 42. Follow those rules for
everyone’s protection.
First, you will want to know which restraint
systems your vehicle has.
We will start with the driver position.
Driver Position
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here is how
to wear it properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight.
To see how, see “Seats” in the Index.
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Page 35 of 480
To unlatch the belt, push the button on the buckle.
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.There is one guide for each outboard passenger
position in the rear seat. Here is how to install
a comfort guide to the safety belt:
1. Pull the elastic cord out from between the
edge of the seatback and the interior body
to remove the guide from its storage clip.
35
Page 38 of 480

Safety Belt Pretensioners
Your vehicle has safety belt pretensioners for the
driver and right front passenger. Although you
cannot see them, they are part of the safety belt
assembly. They help tighten the safety belts during
the early stages of a moderate to severe frontal
or near frontal crash if the threshold conditions for
pretensioner activation are met. And, if your
vehicle has side impact rollover 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 83.
Safety Belt Extender
If the vehicle’s safety belt will fasten around you,
you should use it.
But if a safety belt is not long enough, your dealer
will order you an extender. When you go in to
order it, take the heaviest coat you will wear,
so the extender will be long enough for you.
To help avoid personal injury, do not let someone
else use it, and use it only for the seat it is
made to t. The extender has been designed for
adults. Never use it for securing child seats.
To wear it, just attach it to the regular safety belt.
For more information see the instruction sheet
that comes with the extender.
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Page 39 of 480
Child Restraints
Older Children
Older children who have outgrown booster seats
should wear the vehicle’s safety belts.
Q:What is the proper way to wear safety belts?
A:An older child should wear a lap-shoulder belt
and get the additional restraint a shoulder
belt can provide. The shoulder belt should not
cross the face or neck. The lap belt should
t snugly below the hips, just touching the
top of the thighs. It should never be worn over
the abdomen, which could cause severe or
even fatal internal injuries in a crash.
According to accident statistics, children are
safer when properly restrained in the rear seating
positions than in the front seating positions.
In a crash, children who are not buckled up can
strike other people who are buckled up, or can
be thrown out of the vehicle. Older children need
to use safety belts properly.
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Page 40 of 480
{CAUTION:
Never do this.
Here two children are wearing the same
belt. The belt can not properly spread the
impact forces. In a crash, the two children
can be crushed together and seriously
injured. A belt must be used by only
one person at a time.
Q:What if a child is wearing a lap-shoulder
belt, but the child is so small that the
shoulder belt is very close to the child’s
face or neck?
A:If the child is sitting in a seat next to a
window, move the child toward the center
of the vehicle. Also seeRear Safety Belt
Comfort Guides on page 35. If the child is
sitting in the center rear seat passenger
position, move the child toward the safety belt
buckle. In either case, be sure that the
shoulder belt still is on the child’s shoulder,
so that in a crash the child’s upper body would
have the restraint that belts provide.
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Page 41 of 480
{CAUTION:
Never do this.
Here a child is sitting in a seat that has a
lap-shoulder belt, but the shoulder part is
behind the child. If the child wears the
belt in this way, in a crash the child might
slide under the belt. The belt’s force
would then be applied right on the child’s
abdomen. That could cause serious or
fatal injuries.
Wherever the child sits, the lap portion of the belt
should be worn low and snug on the hips, just
touching the child’s thighs. This applies belt force
to the child’s pelvic bones in a crash.
41