Cadillac 2009 SRX, Owner'S Manual

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In addition, your vehicle has a dual-stage driver airbag.
Dual-stage airbags adjust the restraint according to
crash severity. Your 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.
Your vehicle also has a dual-depth passenger airbag
that adjusts the restraint according to crash severity and
seat location using electronic frontal sensor(s) and
other special sensors which enable the sensing system
to monitor the position of the front passenger seat.
The passenger airbag inflates to a reduced depth when
the passenger seat is in a forward position. For more
rearward front seating positions, the passenger airbag
may inflate to an increased depth (a full deployment),
based on the crash severity measured early in the event.
(Always wear your safety belt, even with frontal
airbags.)
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.
Seat-mounted side impact airbags are not intended to
inflate in frontal impacts, near-frontal impacts, rollovers,
or rear impacts. Roof-rail airbags are not intended to
inflate in rear impacts. A seat-mounted side impact
airbag is intended to deploy on the side of the vehicle
that is struck. Both roof-rail airbags will deploy when
either side of the vehicle is struck or if the sensing
system predicts that the vehicle is about to roll over, or
in a severe 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 seat-mounted
side impact and roof-rail airbags, deployment is
determined by the location and severity of the side
impact. In a rollover event, roof-rail airbag deployment is
determined by the direction of the roll.
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