2004 BUICK CENTURY ECU

Front Seats......................................................1-2
Manual Seats................................................1-2
Six-Way Power Seats.....................................1-3
Reclining Seatbacks........................................1-3
Head Restraints.............................................1-5
Rear Seats.......................................................1-5
Split Folding Rear Seat...................................1-5
Safety Belts.....................................................1-6
Safety Belts: They Are for Everyone.................1-6
Questions and Answers About Safety Belts......1-10
How to Wear Safety Belts Properly.................1-11
Driver Position..............................................1-12
Safety Belt Use During Pregnancy..................1-19
Right Front Passenger Position.......................1-20
Center Passenger Position.............................1-20
Rear Seat Passengers..................................1-22
Rear Safety Belt Comfort Guides for Children
and Small Adults.......................................1-25
Safety Belt Extender.....................................1-27
Child Restraints.............................................1-28
Older Children..............................................1-28
Infants and Young Children............................1-30
Child Restraint Systems.................................1-34
Where to Put the Restraint.............................1-37Top Strap....................................................1-38
Top Strap Anchor Location.............................1-39
Lower Anchorages and Top Tethers for
Children (LATCH System)...........................1-40
Securing a Child Restraint Designed for the
LATCH System (Rear)...............................1-42
Securing a Child Restraint in a Rear Outside
Seat Position............................................1-42
Securing a Child Restraint in a Center Rear
Seat Position............................................1-44
Securing a Child Restraint in the Right Front
Seat Position............................................1-47
Air Bag Systems............................................1-49
Where Are the Air Bags?...............................1-52
When Should an Air Bag Inate?....................1-54
What Makes an Air Bag Inate?.....................1-55
How Does an Air Bag Restrain?.....................1-55
What Will You See After an Air
Bag Inates?............................................1-56
Servicing Your Air Bag-Equipped Vehicle.........1-58
Restraint System Check..................................1-58
Checking Your Restraint Systems...................1-58
Replacing Restraint System Parts After
a Crash...................................................1-59
Section 1 Seats and Restraint Systems
1-1

Driver Position
This part describes the driver’s restraint system.
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here’s 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.
Don’t 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 isn’t long enough, seeSafety Belt
Extender on page 1-27.
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.
1-12

2. Push the latch plate into the buckle until it clicks.
If the belt stops before it reaches the buckle,
tilt the latch plate and keep pulling until you can
buckle it.
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 1-27.
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 down on the buckle
end of the belt as you pull up on the shoulder part.
1-23

{CAUTION:
People should never hold a baby in their arms
while riding in a vehicle. A baby doesn’t 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.
1-31

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.
{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’s
unprotected by any bony structure. This alone
could cause serious or fatal injuries. Young
children always should be secured in
appropriate child restraints.
1-33

Q:How do child restraints work?
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.
For many years, add-on child restraints have used
the adult belt system in the vehicle. To help
reduce the chance of injury, the child also has to be
secured within the restraint. The vehicle’s belt
system secures the add-on child restraint in the
vehicle, and the add-on child restraint’s harness
system holds the child in place within the 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.
When choosing a 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. These restraints use the belt system or
the LATCH system in your vehicle, but the child also
has to be secured within the restraint to help reduce the
chance of personal injury. 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.
1-36

Where to Put the Restraint
Accident statistics show that children are safer if they
are restrained in the rear rather than the front seat. We,
therefore, recommend that child restraints be secured
in a rear seat, including an infant riding in a rear-facing
infant seat, a child riding in a forward-facing child
seat and an older child riding in a booster seat.Never
put a rear-facing child restraint in the front passenger
seat. Here is why:
{CAUTION:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s air bag inates. This is because
the back of the rear-facing child restraint
would be very close to the inating air bag.
Always secure a rear-facing child restraint in a
rear seat.
If you secure a forward-facing child restraint
in the right front seat, always move the front
passenger seat as far back as it will go. It
is better to secure the child restraint in a
rear seat.
{CAUTION:
A child in a child restraint in the center front
seat can be badly injured or killed by the right
front passenger’s air bag if it inates. Never
secure a child restraint in the center front seat.
It is always better to secure a child restraint in
the rear seat.
If you secure a forward-facing child restraint in
the right front passenger seat, always move
the front passenger seat as far back as it will
go. It is better to secure the child restraint in a
rear seat.
Wherever you install it, be sure to secure the child
restraint properly.
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.
1-37

Anchor the top strap to an anchor point specied inTop
Strap Anchor Location on page 1-39. Be sure to use
an anchor point located on the same side of the vehicle
as the seating position where the child restraint will
be placed.
{CAUTION:
Each top tether bracket is designed to anchor
only one child restraint. Attaching more than
one child restraint to a single bracket could
cause the anchor to come loose or even break
during a crash. A child or others could be
injured if this happens. To help prevent injury
to people and damage to your vehicle, attach
only one child restraint per bracket.
Once you have the top strap anchored, you’ll be ready
to secure the child restraint itself. Tighten the top
strap when and as the child restraint manufacturer’s
instructions say.
Top Strap Anchor Location
The vehicle has top strap anchors installed for the rear
seating positions.
They are located under trim covers on the rear seatback
ller panel.
Do not use a child restraint with a top strap in the right
front passenger’s position because there is no place
to anchor the top strap.
If your child restraint is equipped with the LATCH
system, see “Lower Anchorages and Top Tethers for
Children (LATCH System)” following.
1-39