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 brakes will continue to work even when the brake booster completely stops functioning. If this happens, however, you will have to push the pedal much harder than normal and the braking distance will increase.
See also:
Interior light
When leaving your vehicle, make sure the lights are turned off to avoid battery
discharge. ...
Seatbelt and SRS airbag
• All persons in the vehicle should fasten their seatbelts BEFORE the vehicle starts to move. Otherwise, the possibility of serious injury becomes greater in the event of a sudden stop or accident.
...
Vehicle Dynamics Control system monitor
Refer to “Vehicle Dynamics Control operation indicator light” and “Vehicle Dynamics Control warning light/Vehicle Dynamics Control OFF indicator light/ Traction Control OFF indicator light (STI)”. ...