Toyota GT86 Owner's Manual page 120

1-7. Safety information
The driver's and front passenger's SRS side airbags and SRS curtain shield
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 shield airbag deploy independently of the
driver's and front passenger's SRS front airbags in the steering wheel and
instrument panel.
An impact sensor, which senses impact force, is located in each of the left
and right center pillars, doors and rear wheel houses. Another impact sen-
sor, which also senses impact force, is located under the rear center seat.
If one of the center pillar impact sensors and the impact sensor that is
located under the rear center seat together sense an impact force above a
predetermined level in a side collision, the control module causes both the
SRS side airbag and SRS curtain shield airbag on the impacted side to
inflate regardless of whether the rear wheel house impact sensor on the
same side senses an impact.
If one of the rear wheel house impact sensors and the impact sensor that is
located under the rear center seat together sense an impact force above a
predetermined level in a side collision, the control module causes only the
SRS curtain shield airbag on the impacted side to inflate.
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 shield
airbag remains inflated for a while following deployment then slowly deflates.
The SRS side airbag and SRS curtain shield airbag deploy even when no
one occupies the seat on the side on which an impact is applied.
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