Subaru Impreza Manuals 2014 Impreza Owner's Manual | Page 81

1-56 Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag) located at the top of each center pillar. In a moderate to severe side impact collision, the SRS curtain airbag on the impacted side of the vehicle deploys between the occupant and the side window and supplements the seatbelt by reducing the impact on the occupant’s head. For XV CROSSTREK models, in a rollover, SRS curtain airbags on both sides of the vehicle deploy between the occupant and the side window and supplement the seatbelt by reducing the impact to the occupant’s head. In a frontal collision, SRS curtain airbags on both sides of the vehicle deploy between the occupant and the side window and supplement the seatbelt by reducing the impact to the occupant’s head. Operation The SRS side airbag and SRS curtain airbag can function only when the ignition switch is in the “ON” position. The driver’s and front passenger’s SRS side airbags and SRS curtain airbags deploy independently of each other since each has its own impact sensor. Therefore, they may not both deploy in the same accident. Also, the SRS side airbag and SRS curtain airbag deploys independently of the driver’s and front passenger’s SRS frontal airbags in the steering wheel and instrument panel. An impact sensor, which senses impact force, is located in each of the following locations. . In the left and right front doors . In the left and right center pillars . In the left and right rear wheel houses . Under the rear center seat For XV CROSSTREK models, a rollover sensor is also located inside the airbag control module. If the impact sensor that is located under the rear center seat and one of the center pillar impact sensors or front door impact sensors together sense an impact force above a predetermined level in a side collision, the control module causes both the SRS side airbag and curtain airbag on the impacted side to inflate regardless of whether the rear wheel house impact sensor on the same side senses an impact. If the impact sensor that is located under the rear center seat and one of the rear wheel house impact sensors together sense an impact force above a predetermined level in a side collision, the control module causes only the SRS curtain airbag on the impacted side to inflate. For XV CROSSTREK models, if the rollover sensor detects rollover of the vehicle, the control module inflates the SRS curtain airbags on both sides. At this time, the driver’s and front passenger’s seatbelt pretensioners also operate at the same time. After the deployment, the SRS side airbag immediately starts to deflate. The time required from detection of an impact to deflation of an SRS side airbag after deployment is shorter than the blink of an eye. The SRS curtain airbag remains inflated for a while following deployment then slowly deflates. The SRS side airbag and SRS curtain airbag deploy even when no one occupies the seat on the side on which an impact is applied. When the SRS side airbag and SRS curtain airbag deploy, a sudden, fairly loud inflation noise will be heard and some smoke will be released. These occurrences are a normal result of the deployment. This smoke does not indicate a fire in the vehicle.