Subaru Forester: Instruments and controls / Horn

To sound the horn, push the horn pad.
Other information:
So that it can be used safely and comfortably,
the Auto Start Stop system is
designed to constantly monitor the vehicle
conditions as well as the environment
inside and outside the vehicle in addition
to driver operations, and to provide various
warnings to the driver via the warning light
and/or indicator light illuminating or flashing
and a buzzer sounding...
In any of the following cases, the Auto
Start Stop system will not operate.
When the Auto Start Stop warning light/
Auto Start Stop OFF indicator light (yellow)
is illuminating or flashing.
When the malfunction indicator light
(Check Engine light) is illuminating...