2003 CHEVROLET IMPALA Owners Manual

Air Bag Systems
This part explains the frontal and side impact air
bag systems.
Your vehicle has air bags ± a frontal air bag for the
driver and another frontal air bag for the right front
passenger. Your vehicle may also have a side impact
air bag for the driver.
If your vehicle has a side
impact air bag for the
driver it will say AIR BAG
on the air bag covering
on the side of the driver's
seatback closest to
the door.Frontal air bags are designed to help reduce the risk of
injury from the force of an in¯ating frontal air bag.
But these air bags must in¯ate very quickly to do their
job and comply with federal regulations.
1-51

Here are the most important things to know about the
air bag systems:
{CAUTION:
You can be severely injured or killed in a crash
if you aren't wearing your safety belt, even if
you have air bags. Wearing your safety belt
during a crash helps reduce your chance of
hitting things inside the vehicle or being
ejected from it. Air bags are designed to work
with safety belts but don't replace them.
Frontal air bags for the driver and right front
passenger are designed to deploy only in
moderate to severe frontal and near frontal
crashes. They aren't designed to in¯ate at all
CAUTION: (Continued)
CAUTION: (Continued)
in rollover, rear or low-speed frontal crashes,
or in many side crashes. And, for some
unrestrained occupants, frontal air bags may
provide less protection in frontal crashes than
more forceful air bags have provided in
the past.
The side impact air bag for the driver is
designed to in¯ate only in moderate to severe
crashes where something hits the driver's side
of your vehicle. It isn't designed to in¯ate in
frontal, in rollover or in rear crashes.
Everyone in your vehicle should wear a safety
belt properly, whether or not there's an air bag
for that person.
1-52

{CAUTION:
Both frontal and side impact air bags in¯ate
with great force, faster than the blink of an
eye. If you're too close to an in¯ating air bag,
as you would be if you were leaning forward, it
could seriously injure you. Safety belts help
keep you in position for air bag in¯ation before
and during a crash. Always wear your safety
belt, even with frontal air bags. The driver
should sit as far back as possible while still
maintaining control of the vehicle, and should
not lean on the door.
{CAUTION:
Anyone who is up against, or very close to,
any air bag when it in¯ates can be seriously
injured or killed. Air bags plus lap-shoulder
belts offer the best protection for adults, but
CAUTION: (Continued)
CAUTION: (Continued)
not for young children and infants. Neither the
vehicle's safety belt system nor its air bag
system is designed for them. Young children
and infants need the protection that a child
restraint system can provide. Always secure
children properly in your vehicle. To read how,
see the part of this manual called ªOlder
Childrenº or ªInfants and Young Children.º
There is an air bag
readiness light on the
instrument panel, which
shows the air bag symbol.
The system checks the air bag electrical system for
malfunctions. The light tells you if there is an electrical
problem. See
Air Bag Readiness Light on page 3-33for more information.
1-53

Where Are the Air Bags?The driver's frontal air bag is in the middle of the
steering wheel.
The right front passenger's frontal air bag is in the
instrument panel on the passenger's side.
1-54

If your vehicle has one, the driver's side impact air
bag is in the side of the driver's seatback closest to
the door.
{CAUTION:
If something is between an occupant and an
air bag, the bag might not in¯ate properly or it
might force the object into that person causing
severe injury or even death. The path of an
in¯ating air bag must be kept clear. Don't put
anything between an occupant and an air bag,
and don't attach or put anything on the
steering wheel hub or on or near any other air
bag covering. Don't let seat covers block the
in¯ation path of a side impact air bag.
1-55

When Should an Air Bag In¯ate?
The driver's and right front passenger's frontal air bags
are designed to in¯ate in moderate to severe frontal
or near-frontal crashes. But they are designed to in¯ate
only if the impact speed is above the system's
designed ªthreshold level.º
In addition, your vehicle has ªdual stageº frontal air
bags, which adjust the amount of restraint according to
crash severity. For moderate frontal impacts, these
air bags in¯ate at a level less than full deployment. For
more severe frontal impacts, full deployment occurs.
If the front of your vehicle goes straight into a wall that
does not move or deform, the threshold level for the
reduced deployment is about 12 to 18 mph (19 to
29 km/h), and the threshold level for a full deployment is
about 18 to 24 mph (29 to 38.5 km/h). The threshold
level can vary, however, with speci®c vehicle design, so
that it can be somewhat above or below this range.If your vehicle strikes something that will move or
deform, such as a parked car, the threshold level will be
higher. The driver's and right front passenger's frontal
air bags are not designed to in¯ate in rollovers, rear
impacts, or in many side impacts because in¯ation
would not help the occupant.
Your vehicle may or may not have a driver side air bag.
See
Air Bag Systems on page 1-51. A driver 's side
impact air bag is designed to in¯ate in moderate
to severe side crashes involving the driver's door. A
side impact air bag will in¯ate if the crash severity
is above the system's designed ªthreshold level.º The
threshold level can vary with speci®c vehicle design. A
driver's side impact air bag is not designed to in¯ate
in frontal or near-frontal impacts, rollovers or rear
impacts, because in¯ation would not help the occupant.
In any particular crash, no one can say whether an
air bag should have in¯ated simply because of
the damage to a vehicle or because of what the repair
costs were. For frontal air bags, in¯ation is determined
by the angle of the impact and how quickly the
vehicle slows down in frontal and near-frontal impacts.
For side impact air bags, in¯ation is determined by
the location and severity of the impact.
1-56

What Makes an Air Bag In¯ate?
In an impact of sufficient severity, the air bag sensing
system detects that the vehicle is in a crash. For
both the frontal and side impact air bags, the sensing
system triggers a release of gas from the in¯ator, which
in¯ates the air bag. The in¯ator, air bag and related
hardware are all part of the air bag modules. Frontal air
bag modules are located inside the steering wheel
and instrument panel. For vehicles with a driver's side
impact air bag, the air bag moules are located in
the seatback closest to the driver's door.
How Does an Air Bag Restrain?
In moderate to severe frontal or near frontal collisions,
even belted occupants can contact the steering wheel or
the instrument panel. In moderate to severe side
collisions, even belted occupants can contact the inside
of the vehicle. The air bag supplements the protection
provided by safety belts. Air bags distribute the force of
the impact more evenly over the occupant's upper
body, stopping the occupant more gradually. But the
frontal air bags would not help you in many types
of collisions, including rollovers, rear impacts, and many
side impacts, primarily because an occupant's motion
is not toward the air bag. A side impact air bag
would not help you in many types of collisions, including
frontal or near frontal collisions, rollovers, and rear
impacts, primarily because an occupant's motion is not
toward that air bag. Air bags should never be regarded
as anything more than a supplement to safety belts,
and then only in moderate to severe frontal or
near-frontal collisions for the driver's and right front
passenger's frontal air bags, and only in moderate to
severe side collisions for vehicles with a driver's
side impact air bag.
1-57

What Will You See After an Air Bag
In¯ates?
After the air bag in¯ates, it quickly de¯ates, so quickly
that some people may not even realize the air bag
in¯ated. Some components of the air bag module will be
hot for a short time. These components include the
steering wheel hub for the driver's frontal air bag and the
instrument panel for the right front passenger's frontal
air bag. For vehicle's with a driver's side impact air bag,
the side of the seatback closest to the driver's door
will be hot. The parts of the bag that come into contact
with you may be warm, but not too hot to touch.
There will be some smoke and dust coming from the
vents in the de¯ated air bags. Air bag in¯ation doesn't
prevent the driver from seeing or being able to steer the
vehicle, nor does it stop people from leaving the vehicle.
{CAUTION:
When an air bag in¯ates, there is dust in the
air. This dust could cause breathing problems
for people with a history of asthma or other
breathing trouble. To avoid this, everyone in
the vehicle should get out as soon as it is safe
to do so. If you have breathing problems but
can't get out of the vehicle after an air bag
in¯ates, then get fresh air by opening a
window or a door. If you experience breathing
problems following an air bag deployment, you
should seek medical attention.
Your vehicle has a feature that will automatically unlock
the doors and turn the interior lamps on when the air
bags in¯ate (if battery power is available). You can lock
the doors again and turn the interior lamps off by
using the door lock and interior lamp controls.
1-58