See also:

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 de ...

Windshield wiper and washer switches
The wiper operates only when the ignition switch is in the “ON” or “Acc” position. ...

Examples of the types of accidents in which the SRS side airbag and SRS curtain airbag will basically not deploy.
1) The vehicle is involved in frontal collision with another vehicle (moving or stationary). 2) The vehicle is struck from behind. 3) The vehicle pitches end over end. In the event of accidents ...