Chevrolet 2011 Colorado User Manual download pdf (Page 74)

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Chevrolet Colorado Owner Manual - 2011

3-32 Seats and Restraints

Your vehicle may or may not have

roof-rail airbags. See Airbag System

on page 3‑28. Roof-rail airbags are

intended to inflate in moderate to

severe side crashes. 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.

Roof-rail airbags are not intended to

inflate in frontal impacts, near-frontal

impacts, rollovers, or rear impacts.

Both roof-rail airbags will deploy

when either side of the vehicle 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 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 airbags 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. Roof-rail

airbags distribute the force of the

impact more evenly over the

occupant's upper body.

But airbags would not help in many

types of collisions, primarily

because the occupant's motion is

not toward those airbags. See When

Should an Airbag Inflate? on

page 3‑31 for more information.

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