See also:

Behavior with key lock-in prevention function operational
With the driver’s door open, the doors are automatically kept unlocked even if the front side of the power door locking switch is pressed. ...

START
The engine is started in this position. The starter cranks the engine to start it. When the key is released (after the engine has started), the key automatically returns to the “ON” position. ...

2012 Subaru Impreza review
The redesigned 2012 Subaru Impreza's most compelling attributes are evident before you even start the engine. Take a glance and you'll see more mature styling in both the sedan and four-door hatch ...