Chevrolet 2006 Equinox, Owner'S Manual, Page: 52 / 390

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. A
side impact airbag is intended to deploy on the side of the
vehicle that is struck.
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 and
near-frontal impacts. For side impact airbags, inflation is
determined by the location and severity of the impact.
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
inside the steering wheel, the instrument panel, and
the side of the front 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. Airbags
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
passenger’s frontal airbags, and only in moderate to
severe side collisions for vehicles with a driver’s and
passenger’s side impact airbag.
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