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Your vehicle may or may not have roof-mounted
side impact airbags and a rollover sensor. See
Airbag System on page 71. These roof-mounted
“rollover capable” side impact airbags are intended
to inflate in moderate to severe side crashes, and
during a rollover. They may also inflate in some
frontal crashes. Both rollover capable side impact
airbags 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 rear
impacts. Both side impact airbags will deploy when
either side of the vehicle is struck. If your vehicle
does not have a right front passenger seat and a
rear seat, only the driver’s frontal airbag will deploy
in a frontal impact.
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. 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. Additionally, in the case of a “rollover
capable” roof-mounted side impact airbag, the
sensing system detects that the vehicle is about to
roll over. The sensing system triggers a release
of gas from the inflator, which inflates the airbag.
For the frontal airbags, the inflator, airbag, and
related hardware are all part of the airbag modules
inside the steering wheel and in the instrument
panel in front of the right front passenger.
For vehicles with roof-mounted rollover airbags,
the airbag modules, the inflator, and the airbags
are located in the ceiling of the vehicle, near
the side windows.
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