Subaru Forester: Instruments and controls / Horn

To sound the horn, push the horn pad.
Other information:
NOTE
For remote engine starter transceiver:
In the event that the vehicle’s battery is
replaced, discharged or disconnected,
it will be necessary to start the vehicle a
minimum of one time using the key
prior to activating the remote engine
start system...
For safety and security reasons, the
remote engine start system will prevent
starting (or stop the engine if running) and
sound the horn twice if any of the following
conditions is detected. In addition, the fob
will flash and beep 3 times.
The total run-time has exceeded 20
minutes...