2006 BUICK LACROSSE ECU

Front Seats......................................................1-2
Manual Seats................................................1-2
Six-Way Power Seats.....................................1-3
Power Lumbar...............................................1-3
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-4
Head Restraints.............................................1-7
Center Seat...................................................1-8
Rear Seats.......................................................1-8
Split Folding Rear Seat...................................1-8
Safety Belts...................................................1-10
Safety Belts: They Are for Everyone................1-10
Questions and Answers About Safety Belts......1-14
How to Wear Safety Belts Properly.................1-15
Driver Position..............................................1-16
Shoulder Belt Height Adjustment.....................1-22
Safety Belt Use During Pregnancy..................1-23
Right Front Passenger Position.......................1-23
Center Front Passenger Position.....................1-24
Rear Seat Passengers..................................1-25
Rear Safety Belt Comfort Guides....................1-27
Safety Belt Pretensioners...............................1-29
Safety Belt Extender.....................................1-30
Child Restraints.............................................1-30
Older Children..............................................1-30
Infants and Young Children............................1-33Child Restraint Systems.................................1-36
Where to Put the Restraint.............................1-40
Lower Anchors and Tethers for
Children (LATCH)......................................1-41
Securing a Child Restraint in a Rear
Seat Position............................................1-49
Securing a Child Restraint in the Center
Front Seat Position....................................1-51
Securing a Child Restraint in the Right
Front Seat Position....................................1-52
Airbag System...............................................1-56
Where Are the Airbags?................................1-59
When Should an Airbag Inate?.....................1-61
What Makes an Airbag Inate?.......................1-63
How Does an Airbag Restrain?.......................1-63
What Will You See After an Airbag Inates?.....1-64
Passenger Sensing System............................1-65
Servicing Your Airbag-Equipped Vehicle...........1-69
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................1-70
Restraint System Check..................................1-71
Checking the Restraint Systems......................1-71
Replacing Restraint System Parts After
a Crash...................................................1-72
Section 1 Seats and Restraint Systems
1-1

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.
3. 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.
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 1-30.
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.
1-16

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 1-30.
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.
1-26

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.
Child Restraints
Older Children
Older children who have outgrown booster seats should
wear the vehicle’s safety belts.
1-30

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.
Every time infants and young children ride in vehicles,
they should have the protection provided by appropriate
restraints. Young children should not use the vehicle’s
adult safety belts alone, unless there is no other choice.
Instead, they need to use a child restraint.
{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.
1-33

{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.
{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.
1-35

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.
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 1-41for more information. A child
can be endangered in a crash if the child restraint is
not properly secured in the vehicle.
1-38

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.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.
1-39