Subaru Forester: Instruments and controls / Horn

To sound the horn, push the horn pad.
Other information:
Adjust the seat position under the
following conditions.
The parking brake is applied.
The ignition switch is in the “LOCK”/
“OFF” position.
The select lever is in the “P” position.
Hold the access key fob and press and hold the “SET” button, then press
the
button of the access key fob...
If the light illuminates steadily while driving
or does not turn off after the engine starts,
an emission control system malfunction
has been detected.
You should have your vehicle checked by
an authorized SUBARU dealer immediately.
NOTE
This light also illuminates when the fuel
filler cap is not tightened until it clicks...