What Makes An Airbag Inflate; How Does An Airbag Restrain - Chevrolet 2006 Monte Carlo Owner's Manual

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If the vehicle hits a narrow object (like a pole) the
airbags could inflate at a different crash speed
than if the vehicle hits a wide object (like a wall).
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If the vehicle goes into an object at an angle the
airbags could inflate at a different crash speed
than if the vehicle goes straight into the object.
Frontal airbags (driver and right front passenger) are not
intended to inflate during vehicle rollovers, rear
impacts, or in many side impacts.
Your vehicle may or may not have side impact airbags.
See Airbag System on page 1-52. Side impact airbags
are intended to inflate in moderate to severe side
crashes. A side impact airbag will inflate if the crash
severity is above the system's designed threshold level.
The threshold level can vary with specific vehicle design.
Side impact airbags are not intended to inflate in frontal or
near-frontal impacts, rollovers or rear impacts.
In any particular crash, no one can say whether an
airbag should have inflated simply because of the
damage to a vehicle or because of what the repair costs
were. For frontal airbags, inflation is determined by
what the vehicle hits, the angle of the impact, and how
quickly the vehicle slows down in frontal or near-frontal
impacts. For side impact airbags, inflation is determined
by the location and severity of the impact.
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What Makes an Airbag Inflate?
In an impact of sufficient severity, the airbag sensing
system detects that the vehicle is in a crash. The sensing
system triggers a release of gas from the inflator, which
inflates the airbag. The inflator, the airbag and related
hardware are all part of the airbag modules. Frontal
airbag modules are located inside the steering wheel and
instrument panel. For seating positions with side impact
airbags, there are also airbag modules in the side of the
seatbacks closest to the door.

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. The airbag supplements the protection
provided by safety belts. Airbags distribute the force of
the impact more evenly over the occupant's upper
body, stopping the occupant more gradually. But the
frontal airbags 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 airbag. Side impact airbags would not
help you in many types of collisions, including many
frontal or near frontal collisions, and rear impacts,
primarily because an occupant's motion is not toward
those airbags.