What makes an airbag inflate, What makes an airbag inflate? -65 – Pontiac 2008 G6 User 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.
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, your vehicle has dual-stage frontal airbags.
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 has seat-mounted side impact airbags. Your
vehicle may or may not have roof-rail airbags. See Airbag
System on page 1-59. Seat-mounted side impact and
roof-rail airbags are intended to inflate in moderate to
severe side crashes. 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 and roof-rail airbags are not
intended to inflate in frontal impacts, near-frontal
impacts, rollovers, or rear impacts. A seat-mounted side
impact airbag is intended to deploy on the side of the
vehicle that is struck. A roof-rail 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. For seat-mounted side impact and roof-rail
airbags, deployment is determined by the location and
severity of the side impact.
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 and deploy. The
inflator, the airbag, and related hardware are all part of
the airbag module.
Frontal airbag modules are located inside the steering
wheel and instrument panel. For vehicles with
seat-mounted side impact airbags, there are airbag
modules in the side of the front seatbacks closest to the
door. For vehicles with roof-rail airbags, there are
airbag modules in the ceiling of the vehicle, near the
side windows that have occupant seating positions.
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