2005 BUICK LACROSSE ECU

Front Seats......................................................1-3
Manual Seats................................................1-3
Six-Way Power Seats.....................................1-4
Power Lumbar...............................................1-4
Heated Seats.................................................1-5
Reclining Seatbacks........................................1-5
Head Restraints.............................................1-7
Center Seat...................................................1-7
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..............................................1-15
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...............................1-30
Safety Belt Extender.....................................1-30Child Restraints.............................................1-31
Older Children..............................................1-31
Infants and Young Children............................1-33
Child Restraint Systems.................................1-37
Where to Put the Restraint.............................1-40
Top Strap....................................................1-41
Top Strap Anchor Location.............................1-43
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-43
Securing a Child Restraint Designed
for the LATCH System...............................1-45
Securing a Child Restraint in a Rear
Seat Position............................................1-46
Securing a Child Restraint in the Center
Front Seat Position....................................1-48
Securing a Child Restraint in the Right
Front Seat Position....................................1-48
Airbag System...............................................1-51
Where Are the Airbags?................................1-53
When Should an Airbag Inate?.....................1-56
What Makes an Airbag Inate?.......................1-57
How Does an Airbag Restrain?.......................1-57
What Will You See After an Airbag Inates?.....1-58
Section 1 Seats and Restraint Systems
1-1

{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 raise the rear seatback, follow these steps:
1. Raise the seatback up and make sure it latches.
Push and pull on the seatback to be sure it is
locked in position.2. Reconnect the center
safety belt latch plate
to the buckle.
Make sure the safety belt label is pointing to the release
button, and that both are facing the front of the
vehicle. Make sure the belt is not twisted. Push and pull
on the latch plate to be sure it is secure.
When the seat is not in use, the seatback should be
kept in the upright, locked position.
1-9

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.
5. To make the lap part tight, pull down on the buckle
end of the belt as you pull up on the shoulder belt.
1-16

Rear Seat Passengers
It is very important for rear seat passengers to buckle
up! Accident statistics show that unbelted people in
the rear seat are hurt more often in crashes than those
who are wearing safety belts.
Rear passengers who are not safety belted can be
thrown out of the vehicle in a crash. And they can strike
others in the vehicle who are wearing safety belts.
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, see
Safety 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.
1-25

Safety Belt Pretensioners
Your vehicle has safety belt pretensioners. They are on
the buckle end of the safety belts for the driver and
right front passenger. They help the safety belts reduce
a person’s forward movement in a moderate to
severe frontal and near frontal crash.
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 1-65.
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.
1-30

{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.
1-34

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