Adjustable level of each volume
Subaru Impreza / Subaru Impreza Owners Manual / Audio / Hands-free system (if equipped) / Using the Hands-free system / Adjustable level of each volume

See also:
Ignition switch light
For easy access to the ignition switch in the dark, the ignition switch light
illuminates when driver’s door is opened or when the driver’s door is unlocked using
the remote keyless entry transmit ...
Channel preset
...
Air inlet selection button
Air inlet selection button
ON position (recirculation): Interior air is recirculated inside the vehicle. Push the air inlet selection button to the ON position.
The indicator light will illuminate.
...
