2004 VOLVO XC90
Front airbag (SRS) system
As an enhancement to the three-point seat belt system, your Volvo is equipped with a Supplemental
Restraint System (SRS). The Volvo SRS consists of an airbag (2) on both the driver's and passenger's
sides and seat belt pretensioners in both front door pillars. The system is designed to supplement the
protection provided by the three-point seat belt system. All rear seat belts are also equipped with
pretensioners.
The SRS system is indicated by the "SRS" embossed on the steering wheel pad and above the glove
compartment, and by decals on both sun visors and on the front and far right side of the dash.
The airbags are folded and located in the steering wheel hub and above the glove compartment.
Deployment:
The SRS airbags are designed to deploy during certain frontal or front-angular collisions, impacts, or
decelerations, depending on the crash severity, angle, speed and object impacted. The airbags may also
deploy in certain non-frontal collisions where rapid deceleration occurs.
The airbag system includes gas generators (1) surrounded by the airbags (2) and front seat belt
pretensioners for both of the front seats. To deploy the system, the sensor (3) activates the gas generators
causing the airbags to be inflated with nitrogen gas.
As the movement of the seats' occupants compresses the airbags, some of the gas is expelled at a
controlled rate to provide better cushioning. Both seat belt pretensioners also deploy, minimizing any
seat belt slack.The entire process, including inflation and deflation of the airbags, takes approximately
two-tenths of a second.
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