See also:

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

Function settings
A SUBARU dealer can change the settings of the functions shown in the following table to meet your personal requirements. Contact the nearest SUBARU dealer for details. ...

Behavior with key lock-in prevention function non-operational
● If the lock lever is turned to the rear (“LOCK”) position with the driver’s door open and the driver’s door is then closed with the lock lever in that position, the driver’s door is locked ...