See also:

If you have accidentally triggered the alarm system
To stop the alarm Do any of the following operations: - Press any button on the remote transmitter. - Turn the ignition switch to the “ON” position. ...

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 ...

Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power. The ...