Seats and Restraints 3-23
whether the object is fixed or
moving, rigid or deformable, narrow
or wide.
Thresholds can also vary with
specific vehicle design.
Frontal airbags are not intended to
inflate during vehicle rollovers, rear
impacts, or in many side impacts.
In addition the vehicle has
dual‐stage frontal airbags.
Dual‐stage airbags adjust the
restraint according to crash severity.
The vehicle has electronic frontal
sensors, which help the sensing
system distinguish between a
moderate frontal impact and a more
severe frontal impact. For moderate
frontal impacts, dual-stage airbags
inflate at a level less than full
deployment. For more severe frontal
impacts, full deployment occurs.
Frontal knee airbags are
single‐stage airbags and designed
to inflate in moderate to severe
frontal or near frontal impacts
that exceed a predetermined
deployment threshold.
The vehicle has seat-mounted side
impact airbags and roof-rail airbags.
See Airbag System on page 3‑19.
Seat-mounted side impact and
roof-rail airbags are intended to
inflate in moderate to severe side
crashes. In addition, these roof‐rail
airbags are intended to inflate
during a rollover or in a severe
frontal impact. Seat-mounted side
impact and roof-rail airbags will
inflate if the crash severity is above
the system's designed threshold
level. The threshold level can vary
with specific vehicle design.
Roof-rail airbags are not intended
to inflate in rear impacts. A
seat‐mounted side impact airbag is
intended to inflate on the side of the
vehicle that is struck. Both roof‐rail
airbags will inflate when either side
of the vehicle is struck or the
sensing system predicts that the
vehicle is about to roll over on its
side, or in a severe frontal impact.
In any particular crash, no one can
say whether an airbag should have
inflated simply because of the
vehicle damage or repair costs.
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. The inflator, the airbag,
and related hardware are all part of
the airbag module.
For airbag location, see Where Are
the Airbags? on page 3‑21.
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