Subaru Forester: Instruments and controls / Horn
To sound the horn, push the horn pad.
Other information:
..
At the time when a user is registered, the
seat position, outside mirror angle, and
reverse tilt-down outside mirror angle are
registered at the same time. To change the
setting for the seat position, outside mirror
angle, or reverse tilt-down outside mirror
angle, refer to “Driver Monitoring System
settings”...