Chevrolet 2008 Uplander Spezifikationen PDF herunterladen (Seite 86)

When Should an Airbag Inﬂate?

Frontal airbags are designed to inﬂate in moderate to

severe frontal or near-frontal crashes to help reduce the

potential for severe injuries mainly to the driver’s or

right front passenger’s head and chest. However, they

are only designed to inﬂate if the impact exceeds a

predetermined deployment threshold. Deployment

thresholds are used to predict how severe a crash is

likely to be in time for the airbags to inﬂate and

help restrain the occupants.

Whether your frontal airbags will or should deploy is not

based on how fast your vehicle is traveling. It depends

largely on what you hit, the direction of the impact,

and how quickly your vehicle slows down.

Frontal airbags may inﬂate at different crash speeds.

For example:

• If the vehicle hits a stationary object, the airbags

could inﬂate at a different crash speed than if the

vehicle hits a moving object.

• If the vehicle hits an object that deforms, the

airbags could inﬂate at a different crash speed than

if the vehicle hits an object that does not deform.

• 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).

• 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.

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.

Frontal airbags are not intended to inﬂate during

vehicle rollovers, rear impacts, or in many side impacts.

Your vehicle may or may not have seat-mounted side

impact airbags. See Airbag System on page 1-77.

Seat-mounted side impact airbags are intended to inﬂate

in moderate to severe side crashes. Seat-mounted 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.

Seat-mounted side impact 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.

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