See also:

Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table. ...

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. ...