Chevrolet 2006 Avalanche Specifications download pdf (Page 74)

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Roof-rail airbags are not intended to inﬂate in rear

impacts. 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.

Your vehicle has a seat position sensor which enables

the sensing system to monitor the position of the

driver’s seat. The seat position sensor provides

information that is used to determine if the airbags

should deploy at a reduced level or at full deployment.

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 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.

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 roof-rail airbags, there are airbag modules in the

ceiling of the vehicle, near the side windows that

have occupant seating positions.

How Does an Airbag Restrain?

In moderate to severe frontal or near frontal collisions,

even belted occupants can contact the steering wheel or

the instrument panel. In moderate to severe side

collisions, even belted occupants can contact the inside

of the vehicle.

Airbags supplement the protection provided by safety

belts. Frontal airbags distribute the force of the

impact more evenly over the occupant’s upper body,

stopping the occupant more gradually. Roof-rail airbags

distribute the force of the impact more evenly over

the occupant’s upper body.

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Chevrolet 2006 Avalanche Specifications Page 74

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