2006 GMC ENVOY ECU

Front Seats......................................................1-2
Manual Seats................................................1-2
Power Seats..................................................1-3
Manual Lumbar..............................................1-3
Power Lumbar ...............................................1-4
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-5
Head Restraints.............................................1-8
Rear Seats.......................................................1-9
Rear Seat Operation.......................................1-9
Safety Belts...................................................1-14
Safety Belts: They Are for Everyone................1-14
Questions and Answers About Safety Belts......1-18
How to Wear Safety Belts Properly.................1-19
Driver Position..............................................1-19
Safety Belt Use During Pregnancy..................1-25
Right Front Passenger Position.......................1-26
Rear Seat Passengers..................................1-26
Rear Safety Belt Comfort Guides....................1-28
Safety Belt Pretensioners...............................1-31
Safety Belt Extender.....................................1-31
Child Restraints.............................................1-32
Older Children..............................................1-32
Infants and Young Children............................1-34Child Restraint Systems.................................1-37
Where to Put the Restraint.............................1-42
Lower Anchors and Tethers for
Children (LATCH)......................................1-43
Securing a Child Restraint in a Rear
Outside Seat Position................................1-51
Securing a Child Restraint in the Center
Rear Seat Position....................................1-53
Securing a Child Restraint in the Right
Front Seat Position....................................1-53
Airbag System...............................................1-58
Where Are the Airbags?................................1-61
When Should an Airbag Inate?.....................1-63
What Makes an Airbag Inate?.......................1-65
How Does an Airbag Restrain?.......................1-65
What Will You See After an Airbag Inates?.....1-66
Passenger Sensing System............................1-67
Servicing Your Airbag-Equipped Vehicle...........1-71
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................1-72
Restraint System Check..................................1-73
Checking the Restraint Systems......................1-73
Replacing Restraint System Parts
After a Crash............................................1-74
Section 1 Seats and Restraint Systems
1-1

4. 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 1-31.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
5. To make the lap part tight, pull up on the
shoulder belt.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 at 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 safety belt locks if there is a sudden stop or crash,
or if you pull the belt very quickly out of the retractor.
1-20

2. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.
When the shoulder belt is pulled out all the way,
it will lock. If it does, let it go back all the way and
start again.
If the belt is not long enough, seeSafety Belt
Extender on page 1-31.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
3. To make the lap part tight, pull up on the
shoulder part.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 at 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 safety belt locks if there is a sudden stop or a crash,
or if you pull the belt very quickly out of the retractor.
1-27

5. Buckle, position, and release the safety belt as
described inRear Seat Passengers on page 1-26.
Make sure that the shoulder belt crosses the
shoulder.
To remove and store the comfort guides, squeeze the
belt edges together so that you can take them out of the
guides. Slide the guide back onto its storage clip or
into its storage pocket.
Safety Belt Pretensioners
Your vehicle has safety belt pretensioners for the driver
and right front passenger. Although you cannot see
them, they are located on the retractor part of the safety
belts. They help the safety belts reduce a person’s
forward movement in a moderate to severe frontal, near
frontal or side crash or a rollover.
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 1-74.
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. It is free. 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.
1-31

{CAUTION:
People should never hold a baby in their arms
while riding in a vehicle. A baby does not
weigh much — until a crash. During a crash a
baby will become so heavy it is not possible to
hold it. For example, in a crash at only 25 mph
(40 km/h), a 12 lb (5.5 kg) baby will suddenly
become a 240 lb (110 kg) force on a person’s
arms. A baby should be secured in an
appropriate restraint.
{CAUTION:
Children who are up against, or very close to,
any airbag when it inates can be seriously
injured or killed. 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.
Young children and infants need the protection
that a child restraint system can provide.
1-35

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:
Newborn infants need complete support,
including support for the head and neck. This
is necessary because a newborn infant’s neck
is weak and its head weighs so much
compared with the rest of its body. In a crash,
an infant in a rear-facing seat 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
always should be secured in appropriate infant
restraints.
1-36

{CAUTION:
The body structure of a young child is quite
unlike that of an adult or older child, for whom
the safety belts are designed. 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. Young
children always should be secured in
appropriate child restraints.
Child Restraint Systems
An infant car bed (A), a special bed made for use in a
motor vehicle, is an infant restraint system designed
to restrain or position a child on a continuous at
surface. Make sure that the infant’s head rests toward
the center of the vehicle.
1-37

A booster seat (F-G) is a child restraint designed to
improve the t of the vehicle’s safety belt system.
Some booster seats have a shoulder belt positioner,
and some high-back booster seats have a ve-point
harness. A booster seat can also help a child to see
out the window.
Q:How Should I Use a Child Restraint?
A:A child restraint system is any device designed for
use in a motor vehicle to restrain, seat, or position
children. A built-in child restraint system is a
permanent part of the motor vehicle. An add-on
child restraint system is a portable one, which
is purchased by the vehicle’s owner. To help reduce
injuries, an add-on child restraint must be secured
in the vehicle. With built-in or add-on child
restraints, the child has to be secured within the
child restraint.
When choosing an add-on child restraint, be sure
the child restraint is designed to be used in a
vehicle. If it is, it will have a label saying that it
meets federal motor vehicle safety standards. Then
follow the instructions for the restraint. You may
nd these instructions on the restraint itself or in a
booklet, or both.
1-39