ECU GMC ENVOY DENALI 2007 Owners Manual

Front Seats..................................................... 8
Manual Seats................................................ 8
Power Seats................................................. 9
Manual Lumbar........................................... 10
Power Lumbar............................................. 10
Heated Seats.............................................. 11
Memory Seat, Mirrors, and Pedals.............. 12
Reclining Seatbacks.................................... 14
Head Restraints.......................................... 17
Rear Seats.................................................... 18
Rear Seat Operation................................... 18
Safety Belts.................................................. 20
Safety Belts: They Are for Everyone........... 20
Questions and Answers About
Safety Belts............................................. 25
How to Wear Safety Belts Properly............. 26
Driver Position............................................. 26
Safety Belt Use During Pregnancy.............. 34
Right Front Passenger Position................... 35
Rear Seat Passengers................................ 35
Rear Safety Belt Comfort Guides................ 38
Safety Belt Pretensioners............................ 41
Safety Belt Extender................................... 41
Child Restraints............................................ 42
Older Children............................................. 42
Infants and Young Children......................... 45Child Restraint Systems.............................. 49
Where to Put the Restraint.......................... 54
Lower Anchors and Tethers for
Children (LATCH).................................... 56
Securing a Child Restraint in a
Rear Outside Seat Position...................... 63
Securing a Child Restraint in the
Center Rear Seat Position....................... 66
Securing a Child Restraint in the
Right Front Seat Position......................... 66
Airbag System.............................................. 71
Where Are the Airbags?.............................. 75
When Should an Airbag Inate?.................. 77
What Makes an Airbag Inate?................... 79
How Does an Airbag Restrain?................... 80
What Will You See After an
Airbag Inates?........................................ 80
Passenger Sensing System......................... 82
Servicing Your Airbag-Equipped Vehicle...... 88
Adding Equipment to Your
Airbag-Equipped Vehicle.......................... 89
Restraint System Check............................... 90
Checking the Restraint Systems.................. 90
Replacing Restraint System Parts
After a Crash........................................... 91
Section 1 Seats and Restraint Systems
7

The lap-shoulder belt may lock if you pull the
belt across you very quickly. If this happens,
let the belt go back slightly to unlock it.
Then pull the belt across you more slowly.
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 41.
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.
It may be necessary to pull stitching on the
safety belt through the latch plate to fully
tighten the lap belt on smaller occupants.
27

Lap-Shoulder Belt
All rear seat positions have lap-shoulder belts.
Here is how to wear one properly.
1. Pick up the latch plate and pull the belt across
you. Do not let it get twisted.
The shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let
the belt go back slightly to unlock it. Then
pull the belt across you more slowly.
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 41.
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.
36

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
in 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 91.
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.
41

{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.
46

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.
48

{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.
49

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.
51

Securing an Add-on Child Restraint in
the Vehicle
{CAUTION:
A child can be seriously injured or killed
in a crash if the child restraint is not
properly secured in the vehicle. Make sure
the child restraint is properly installed in
the vehicle using the vehicle’s safety
belt or LATCH system, following the
instructions that came with that restraint,
and also the instructions in this manual.
To help reduce the chance of injury, the child
restraint must be secured in the vehicle.
Child restraint systems must be secured in vehicle
seats by lap belts or the lap belt portion of a
lap-shoulder belt, or by the LATCH system.SeeLower Anchors and Tethers for Children
(LATCH) on page 56for more information. A
child can be endangered in a crash if the child
restraint is not properly secured in the vehicle.
When securing an add-on child restraint, refer to
the instructions that come with the restraint
which may be on the restraint itself or in a booklet,
or both, and to this manual. The child restraint
instructions are important, so if they are not
available, obtain a replacement copy from the
manufacturer.
Keep in mind that an unsecured child restraint can
move around in a collision or sudden stop and
injure people in the vehicle. Be sure to properly
secure any child restraint in your vehicle — even
when no child is in it.
52

Securing the Child Within the
Child Restraint
There are several systems for securing the
child within the child restraint. One system, the
three-point harness, has straps that come
down over each of the infant’s shoulders and
buckle together at the crotch. The ve-point
harness system has two shoulder straps, two hip
straps, and a crotch strap. A shield may take
the place of hip straps. A T-shaped shield
has shoulder straps that are attached to a at
pad which rests low against the child’s body.
A shelf- or armrest-type shield has straps that
are attached to a wide, shelf-like shield that
swings up or to the side.
{CAUTION:
A child can be seriously injured or killed
in a crash if the child is not properly
secured in the child restraint. Make sure
the child is properly secured, following
the instructions that came with that
restraint.
Because there are different systems, it is important
to refer to the instructions that come with the
restraint. A child can be endangered in a crash if
the child is not properly secured in the child
restraint.
53