Subaru Forester: Instruments and controls / Horn

To sound the horn, push the horn pad.
Other information:
The brake system warning light
will
illuminate when the vacuum pressure
sensor is malfunctioning or brake booster
pressure is decreasing.
If the brake warning light continues to
illuminate for several minutes after starting
the engine, there may be a malfunction in
the vacuum system...
If the rear camera lens becomes dirty, the image shown on the display may appear unclear or blurred. Use the washer system to help clean the camera and restore better rear visibility.
To spray washer fluid onto the rear camera, push the wiper lever toward the instrument cluster...