User's Manual

What Makes an Airbag Inflate?
In a deployment event, the sensing system sends
an electrical signal triggering a release of gas from
the inflator. Gas from the inflator fills the airbag
causing the bag to break out of the cover and deploy.
The inflator, the airbag, and related hardware are
all part of the airbag module.
Frontal airbag modules are located inside the
steering wheel and instrument panel. For vehicles
with seat-mounted side impact airbags, there are
airbag modules in the side of the front seatbacks
closest to the door. For vehicles with roof-rail
airbags, there are airbag modules in the ceiling
of the vehicle, near the side windows that have
occupant seating positions.
How Does an Airbag 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.
Airbags supplement the protection provided by
safety belts. Frontal airbags distribute the force of the
impact more evenly over the occupant’s upper body,
stopping the occupant more gradually. Seat-mounted
side impact and roof-rail airbags distribute the force
of the impact more evenly over the occupant’s
upper body.
But airbags would not help in many types of
collisions, primarily because the occupant’s motion
is not toward those airbags. See When Should an
Airbag Inflate? on page 1-59 for more information.
Airbags should never be regarded as anything
more than a supplement to safety belts.
1-61