2009 HUMMER H3 ECU

Seats and
Restraint System
Head Restraints
Head Restraints..................1-2
Front Seats
Manual Seats.....................1-3
Power Seats.......................1-3
Manual Lumbar..................1-4
Power Lumbar....................1-4
Heated Seats.....................1-4
Reclining Seatbacks...........1-5
Rear Seats
60/40 Split Bench
Seat (H3)..........................1-7
60/40 Split Bench
Seat (H3T)........................1-9
Safety Belts
Safety Belts: They Are for
Everyone.........................1-11
How to Wear Safety Belts
Properly..........................1-14
Lap-Shoulder Belt.............1-20
Safety Belt Use During
Pregnancy.......................1-25
Safety Belt Extender.........1-25
Child Restraints
Older Children..................1-25
Infants and Young
Children..........................1-28
Child Restraint Systems. . . .1-31
Where to Put the
Restraint.........................1-32
Lower Anchors and
Tethers for Children
(LATCH)
..........................1-34
Securing a Child
Restraint in a Rear
Outside Seat Position
......1-41
Securing a Child
Restraint in the Center
Rear Seat Position
..........1-43
Securing a Child
Restraint in the Right
Front Seat Position
.........1-43
Airbag System
Airbag System..................1-46
Where Are the Airbags?. . .1-49
When Should an Airbag
Inate?............................1-50
What Makes an Airbag
Inate?............................1-52
How Does an Airbag
Restrain?........................1-52
What Will You See After
an Airbag Inates?..........1-52
Passenger Sensing
System............................1-54
Servicing Your
Airbag-Equipped Vehicle. .1-58
Adding Equipment to
Your Airbag-Equipped
Vehicle
............................1-58
Restraint System Check
Checking the Restraint
Systems..........................1-60
Replacing Restraint
System Parts After a
Crash
..............................1-60
Seats and Restraint System 1-1

Returning the Seatbacks to an
Upright Position
{CAUTION
If either 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
seatbacks to be sure they are
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:
1. Lift the seatback up and push it
all the way rearward.
2. Reach under the front seat and
lift the cushion while moving it
rearward until it latches.
3. Pull forward on the seatback and
push down on the seat cushion
to make sure the seat is
securely in place.
1-8 Seats and Restraint System

4. Remove the headrest by
pressing the button on the
headrest post, at the top of the
seatback, and lift to remove.
5. Lift the headrest off of the
seatback and store on the back
panel.To return the seatback(s) to the
upright position:
1. Lift the seatback partially and
reinsert the headrest.
2. Lift the seatback completely and
push it into place.
{CAUTION
If either 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
seatbacks to be sure they are
locked.
3. Make sure the seatback is locked
by pushing and pulling on it.
{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.
4. Reconnect the center safety belt
latch plate to the mini buckle.
Make sure the safety belt is not
twisted.
5. Push and pull on the latch plate
to be sure it is secure.
When the seatback is not in use,
it should be kept in the upright,
locked position.
1-10 Seats and Restraint System

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 1-25.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.4. If equipped with a shoulder belt
height adjuster, move it to the
height that is right for you.
See “Shoulder Belt Height
Adjustment” later in this section
for instructions on use and
important safety information.
5. To make the lap part tight, pull
up on the shoulder belt.
It may be necessary to pull
stitching on the safety belt
through the latch plate to fully
tighten the lap belt on smaller
occupants.To unlatch the belt, push the button
on the buckle. The belt should return
to its stowed position. Slide the latch
plate up the safety belt webbing
when the safety belt is not in use.
The latch plate should rest on the
stitching on the safety belt, near the
guide loop on the side wall.
Before a door is closed, be sure the
safety belt is out of the way. If a
door is slammed against a safety
belt, damage can occur to both the
safety belt and the vehicle.
Seats and Restraint System 1-21

Safety Belt Use During
Pregnancy
Safety belts work for everyone,
including pregnant women. Like all
occupants, they are more likely to be
seriously injured if they do not wear
safety belts.
A pregnant woman should wear a
lap-shoulder belt, and the lap portion
should be worn as low as possible,
below the rounding, throughout
the pregnancy.The best way to protect the fetus is to
protect the mother. When a safety
belt is worn properly, it is more likely
that the fetus will not be hurt in a
crash. For pregnant women, as for
anyone, the key to making safety
belts effective is wearing them
properly.
Safety Belt Extender
If the safety belt will fasten around
you, you should use it.
But if a safety belt is not long
enough, your dealer/retailer 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, attach it to the regular
safety belt. For more information, see
the instruction sheet that comes with
the extender.
Child Restraints
Older Children
Older children who have outgrown
booster seats should wear the
vehicle’s safety belts.
Seats and Restraint System 1-25

The manufacturer’s instructions that
come with the booster seat, state the
weight and height limitations for that
booster. Use a booster seat with a
lap-shoulder belt until the child
passes the below t test:
Sit all the way back on the seat.
Do the knees bend at the seat
edge? If yes, continue. If no,
return to the booster seat.
Buckle the lap-shoulder belt.
Does the shoulder belt rest on the
shoulder? If yes, continue. If no,
try using the rear safety belt
comfort guide. See “Rear Safety
Belt Comfort Guides” under
Lap-Shoulder Belt on page 1-20
for more information. If the
shoulder belt still does not rest on
the shoulder, then return to the
booster seat.
Does the lap belt t low and snug
on the hips, touching the thighs?
If yes, continue. If no, return to the
booster seat.
Can proper safety belt t be
maintained for the length of the
trip? If yes, continue. If no, return
to the booster seat.
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. This applies belt
force to the child’s pelvic bones in
a crash. It should never be worn
over the abdomen, which could
cause severe or even fatal
internal injuries in a crash.Also see “Rear Safety Belt Comfort
Guides” underLap-Shoulder Belt
on page 1-20.
According to accident statistics,
children and infants are safer when
properly restrained in a child
restraint system or infant restraint
system secured in a rear seating
position.
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.
1-26 Seats and Restraint System

Infants and Young
Children
Everyone in a vehicle needs
protection! This includes infants
and all other children. Neither the
distance traveled nor the age and
size of the traveler changes the
need, for everyone, to use safety
restraints. In fact, the law in every
state in the United States and in
every Canadian province says
children up to some age must be
restrained while in a vehicle.
{CAUTION
Children can be seriously injured
or strangled if a shoulder belt is
wrapped around their neck and
the safety belt continues to
tighten. Never leave children
unattended in a vehicle and never
allow children to play with the
safety belts.
Airbags plus lap-shoulder belts offer
protection for adults and older
children, but not for young children
and infants. Neither the vehicle’s
safety belt system nor its airbag
system is designed for them.
Every time infants and young
children ride in vehicles, they should
have the protection provided by
appropriate child restraints.Children who are not restrained
properly can strike other people, or
can be thrown out of the vehicle.
{CAUTION
Never do this.
Never hold an infant or a child
while riding in a vehicle. Due to
crash forces, an infant or a child
will become so heavy it is not
possible to hold it during a crash.
For example, in a crash at only
25 mph (40 km/h), a 12 lb (5.5 kg)
infant will suddenly become a
240 lb (110 kg) force on a
person’s arms. An infant should
be secured in an appropriate
restraint.
1-28 Seats and Restraint System

{CAUTION
Never do this.
Children who are up against, or
very close to, any airbag when it
inates can be seriously injured or
killed. Never put a rear-facing
child restraint in the right front
seat. Secure a rear-facing child
restraint in a rear seat. It is also
better to secure a forward-facing
child restraint in a rear seat. If you
must secure a forward-facing child
restraint in the right front seat,
always move the front passenger
seat as far back as it will go.
Seats and Restraint System 1-29