Subaru WRX & WRX STI Manuals 2013 Impreza WRX & WRX STI Owner's Manual | Page 76

1-48

Seat, seatbelt and SRS airbags

! SRS frontal airbag operation

A)
B)
1)
2)

Driver’s side
Passenger’s side
SRS AIRBAGs deploy as soon as a collision occurs.
After deployment, SRS AIRBAGs start to deflate immediately so that the driver’s vision is not
obstructed.

The SUBARU advanced frontal airbag
system is designed to determine the
activation or deactivation condition of the
front passenger’s SRS frontal airbag
depending on the total load on the front
passenger’s seat monitored by the front
passenger’s occupant detection system
weight sensor. For this reason, only the
driver’s SRS frontal airbag may deploy in
the event of a collision, but this does not
mean failure of the system.
If the front sub sensors and the impact
sensors in the airbag control module
detect a predetermined amount of force
during a frontal collision, the control
module sends signals to the airbag
module(s) (only driver’s module or both
driver’s and front passenger’s modules)
instructing the module(s) to inflate the
SRS frontal airbag(s). The driver’s and
front passenger’s SRS frontal airbags use
dual stage inflators.
The two inflators of each airbag are
triggered either sequentially or simultaneously, depending on the severity of
impact, in the case of the driver’s SRS
frontal airbag and depending on the
severity of impact and the total load on
the seat in the case of the front passenger’s SRS frontal airbag.