2009 CHEVROLET TAHOE ECU

Head Restraints...............................................1-2
Front Seats......................................................1-3
Manual Seats................................................1-3
Power Seats..................................................1-4
Manual Lumbar..............................................1-5
Power Lumbar ...............................................1-6
Heated Seats.................................................1-7
Heated and Cooled Seats................................1-7
Memory Seat, Mirrors, and Pedals....................1-8
Reclining Seatbacks......................................1-10
Center Seat.................................................1-13
Rear Seats.....................................................1-14
Heated Seats...............................................1-14
60/40 Split Bench Seat (Second Row).............1-14
Bucket Seats (Second Row)...........................1-20
Third Row Seat............................................1-27
Safety Belts...................................................1-32
Safety Belts: They Are for Everyone................1-32
How to Wear Safety Belts Properly.................1-37
Lap-Shoulder Belt.........................................1-46
Safety Belt Use During Pregnancy..................1-53
Lap Belt......................................................1-53
Safety Belt Extender.....................................1-54
Child Restraints.............................................1-55
Older Children..............................................1-55
Infants and Young Children............................1-57Child Restraint Systems.................................1-61
Where to Put the Restraint.............................1-64
Lower Anchors and Tethers for Children
(LATCH)..................................................1-65
Securing a Child Restraint in a Rear Seat
Position...................................................1-73
Securing a Child Restraint in the Center
Front Seat Position....................................1-77
Securing a Child Restraint in the Right
Front Seat Position....................................1-78
Airbag System..............................................
.1-81
Where Are the Airbags?................................1-83
When Should an Airbag Inate?.....................1-86
What Makes an Airbag Inate?.......................1-87
How Does an Airbag Restrain?.......................1-88
What Will You See After an Airbag Inates?.....1-88
Passenger Sensing System............................1-90
Servicing Your Airbag-Equipped Vehicle...........1-96
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................1-96
Restraint System Check..................................1-98
Checking the Restraint Systems......................1-98
Replacing Restraint System Parts After a
Crash......................................................1-99
Section 1 Seats and Restraint System
1-1

Removing the Third Row Seat
To remove the seat, do the following:
1. Open the liftgate to access the controls for the seat.
2. Fold the seatback forward using the instructions
listed under “Folding the Seatbacks” previously.
The seat cannot be removed unless the seatback is
folded.
3. Unlatch the seat from
the oor by pulling the
carrying handle,
located at the rear of
the seat, rearward.
4. Roll the seat out of the vehicle. There is a track in
the oor to guide the seat wheels out of the vehicle.
Installing the Third Row Seat
To install the seat, do the following:
1. Open the liftgate to access the rear of the vehicle.
2. Slide the front outboard seat wheels into the
track on the oor and roll the seat forward. The front
latches should lock into place. If the latches do
not lock, try tilting the rear of the seat upward
slightly.
3. Lower the rear of the seat and push down on the
seat to engage the rear oor latches.
{CAUTION:
A seat that is not locked into place properly can
move around in a collision or sudden stop. People
in the vehicle could be injured. Be sure to lock the
seat into place properly when installing it.
4. Push and pull on the seat to make sure it is locked
into place. The seatback cannot be raised to the
upright position unless the seat is secured to
the oor.
5. Pull up on the seatback until it locks into the upright
position.
1-30

Engaging the child restraint locking feature in the
right front seating position may affect the passenger
sensing system. SeePassenger Sensing System
on page 1-90for more information.
If the belt stops before it reaches the buckle, for
lap-shoulder belts with cinching latch plates, tilt the
latch plate and keep pulling the safety belt until
it can be buckled.3. Push the latch plate into the buckle until it clicks. If
you nd that the latch plate will not go fully into the
buckle, see if you are using the correct buckle.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, seeSafety Belt
Extender on page 1-54.
Position the release button on the buckle so that
the safety belt could be quickly unbuckled if
necessary.
1-47

To make the belt shorter, pull its free end as shown
until the belt is snug.
If the belt is not long enough, seeSafety Belt Extender
on page 1-54.
Make sure the release button on the buckle is positioned
so you would be able to unbuckle the safety belt
quickly if necessary.
If you nd that the latch plate will not go fully into the
buckle, see if you are using the correct buckle. Be sure
that the latch plate clicks when inserted into the
buckle.
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.
1-54

{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.
1-58

{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.
1-59

Q:What are the different types of add-on child
restraints?
A:Add-on child restraints, which are purchased by the
vehicle’s owner, are available in four basic types.
Selection of a particular restraint should take
into consideration not only the child’s weight, height,
and age but also whether or not the restraint will
be compatible with the motor vehicle in which it will
be used.
For most basic types of child restraints, there are
many different models available. When purchasing a
child restraint, be sure it is designed to be used
in a motor vehicle. If it is, the restraint will have a
label saying that it meets federal motor vehicle
safety standards.
The restraint manufacturer’s instructions that come
with the restraint state the weight and height
limitations for a particular child restraint. In addition,
there are many kinds of restraints available for
children with special needs.
{CAUTION:
To reduce the risk of neck and head injury during
a crash, infants need complete support. This is
because an infant’s neck is not fully developed
and its head weighs so much compared with the
rest of its body. In a crash, an infant in a
rear-facing child restraint settles into the restraint,
so the crash forces can be distributed across the
strongest part of an infant’s body, the back and
shoulders. Infants should always be secured in
rear-facing child restraints.
1-60

{CAUTION:
A young child’s hip bones are still so small that
the vehicle’s regular safety belt may not remain
low on the hip bones, as it should. Instead, it may
settle up around the child’s abdomen. In a crash,
the belt would apply force on a body area that is
unprotected by any bony structure. This alone
could cause serious or fatal injuries. To reduce the
risk of serious or fatal injuries during a crash,
young children should always be secured in
appropriate child restraints.
Child Restraint Systems
A rear-facing infant
seat (A) provides restraint
with the seating surface
against the back of
the infant.
The harness system holds the infant in place and, in a
crash, acts to keep the infant positioned in the restraint.
1-61