2009 CADILLAC STS ECU

Front Seats......................................................1-2
Power Seats..................................................1-2
Power Lumbar ...............................................1-2
Heated Seats.................................................1-3
Heated and Ventilated Seats............................1-3
Power Reclining Seatbacks..............................1-4
Head Restraints.............................................1-5
Rear Seats.......................................................1-6
Heated Seats.................................................1-6
Rear Seat Pass-Through Door.........................1-6
Safety Belts.....................................................1-7
Safety Belts: They Are for Everyone.................1-7
How to Wear Safety Belts Properly.................1-12
Lap-Shoulder Belt.........................................1-21
Safety Belt Use During Pregnancy..................1-27
Safety Belt Extender.....................................1-27
Child Restraints.............................................1-28
Older Children..............................................1-28
Infants and Young Children............................1-31
Child Restraint Systems.................................1-35
Where to Put the Restraint.............................1-37Lower Anchors and Tethers for
Children (LATCH)......................................1-39
Securing a Child Restraint in a
Rear Seat Position....................................1-45
Securing a Child Restraint in the
Right Front Seat Position............................1-47
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
Passenger Sensing System............................1-59
Servicing Your Airbag-Equipped Vehicle...........1-64
Adding Equipment to Your
Airbag-Equipped Vehicle
.............................1-64
Restraint System Check..................................1-66
Checking the Restraint Systems......................1-66
Replacing Restraint System Parts
After a Crash............................................1-67
Section 1 Seats and Restraint System
1-1

Lap-Shoulder Belt
All seating positions in your vehicle have a
lap-shoulder belt.
Here is how to wear a lap-shoulder belt properly.
1. Adjust the seat, if the seat is adjustable, so you
can sit up straight. To see how, see “Seats” in
the Index.
2. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.
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.
If you ever pull the shoulder portion of a passenger
belt out all the way, you may engage the child
restraint locking feature. If this happens, just let
the belt go back all the way and start again.3. 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 1-27.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if necessary.
1-21

Safety Belt Use During Pregnancy
Safety belts work for everyone, including pregnant
women. Like all occupants, they are more likely to be
seriously injured if they do not wear safety belts.
A pregnant woman should wear a lap-shoulder belt, and
the lap portion should be worn as low as possible,
below the rounding, throughout the pregnancy.The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it is
more likely that the fetus will not be hurt in a crash.
For pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
Safety Belt Extender
If the safety belt will fasten around you, you should
use it.
But if a safety belt is not long enough, your dealer/retailer
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, attach it
to the regular safety belt. For more information, see the
instruction sheet that comes with the extender.
1-27

Q:What is the proper way to wear safety belts?
A:An older child should wear a lap-shoulder belt and
get the additional restraint a shoulder belt can
provide. The shoulder belt should not cross the face
or neck. The lap belt should t snugly below the
hips, just touching the top of the thighs. This applies
belt force to the child’s pelvic bones in a crash.
It should never be worn over the abdomen, which
could cause severe or even fatal internal injuries in
a crash.
Also see “Rear Safety Belt Comfort Guides” under
Lap-Shoulder Belt on page 1-21.
According to accident statistics, children and infants
are safer when properly restrained in a child restraint
system or infant restraint system secured in a rear
seating position.
In a crash, children who are not buckled up can strike
other people who are buckled up, or can be thrown
out of the vehicle. Older children need to use safety
belts properly.{CAUTION:
Never do this.
Never allow two children to wear the same safety
belt. The safety belt can not properly spread the
impact forces. In a crash, the two children can be
crushed together and seriously injured. A safety
belt must be used by only one person at a time.
1-29

{CAUTION:
Never do this.
Never hold an infant or a child while riding in a
vehicle. Due to crash forces, an infant or a child
will become so heavy it is not possible to hold it
during a crash. For example, in a crash at only
25 mph (40 km/h), a 12 lb (5.5 kg) infant will
suddenly become a 240 lb (110 kg) force on a
person’s arms. An infant should be secured in an
appropriate restraint.
1-32

{CAUTION:
Never do this.
Children who are up against, or very close to, any
airbag when it inates can be seriously injured or
killed. Never put a rear-facing child restraint in the
right front seat. Secure a rear-facing child restraint
in a rear seat. It is also better to secure a
forward-facing child restraint in a rear seat. If you
must secure a forward-facing child restraint in the
right front seat, always move the front passenger
seat as far back as it will go.
1-33

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:
To reduce the risk of neck and head injury during
a crash, infants need complete support. This is
because an infant’s neck is not fully developed
and its head weighs so much compared with
the rest of its body. In a crash, an infant in a
rear-facing child restraint 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 should always be secured in
rear-facing child restraints.
1-34

{CAUTION:
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. To reduce
the risk of serious or fatal injuries during a crash,
young children should always be secured in
appropriate child restraints.
Child Restraint Systems
A rear-facing infant
seat (A) provides restraint
with the seating surface
against the back of
the infant.
The harness system holds the infant in place and, in a
crash, acts to keep the infant positioned in the restraint.
A forward-facing child
seat (B) provides restraint
for the child’s body with the
harness.
1-35