See also:

ON
This is the normal operating position after the engine is started. ...

D (Drive)
This position is for normal driving. The transmission automatically shifts into a suitable gear according to the vehicle speed and the acceleration you require. When more acceleration is required ...

START
CAUTION Do not turn the ignition switch to the “START” position while the engine is running. The engine is started in this position. The starter cranks the engine to start it. When the key is rele ...