Pontiac 2004 Vibe - Manual (Page 59)

What Makes an Air Bag Inflate?
In an impact of sufficient severity, the air bag sensing
system detects that the vehicle is in a crash. For
both frontal and side impact air bags, the sensing
system triggers a release of gas from the inflator, which
inflates the air bag. The inflator, the 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 side
impact air bags, the air bag modules are located in the
seatback closest to the driver’s and/or right front
passenger’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. Side impact air bags
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 those air bags. 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 the driver’s and right front
passenger’s side impact air bag.
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