Gmc 2009 Acadia Bedienungsanleitung PDF herunterladen (Seite 59)

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.

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.

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.

Seat-mounted side impact and

roof-rail airbags distribute the force

of the impact more evenly over

the occupant’s upper body.

Seats and Restraint System 1-55

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