Chevrolet Silverado 2008 Spezifikationen PDF herunterladen (Seite 78)

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101

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.

Frontal airbags are not intended to inﬂate during vehicle

rollovers, rear impacts, or in many side impacts.

If the GVWR (Gross Vehicle Weight Rating) of your

vehicle is 8,500 lb (3 855 kg) or above, your vehicle

has single stage airbags. If the GVWR is below 8,500 lb

(3 855 kg) then your vehicle has dual stage airbags. You

can ﬁnd the GVWR on the certiﬁcation label on the rear

edge of the driver’s door. See Loading Your Vehicle on

page 4-36 for more information.

In addition, your vehicle may have 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.

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