Subaru Forester: Light control switch / Sensor for the auto on/off headlights

The sensor is as shown in the illustration.
CAUTION
If any object is placed on or near the
sensor, the sensor may not detect
the level of the ambient light correctly
and the auto on/off headlights
may not operate properly.
High beam
Low beam
When the headlights are on high beam, the
high beam indicator light on the
combination meter is also on...
Other information:
The hill descent control function will be in
standby mode when the X-MODE is
activated and the vehicle speed is less
than approximately 12 mph (20 km/h).
The function will operate when the vehicle
speed is less than approximately 12 mph
(20 km/h) and the accelerator ratio is less
than approximately 10%...
Wash the vehicle regularly to prevent
corrosion of the body and suspension
components. Also, wash the vehicle
promptly after driving on any of the
following surfaces.
Roads that have been salted to prevent
them from freezing in winter
Mud, sand, or gravel
Coastal roads
After the winter has ended, it is recommended
that the underbody be given a
very thorough washing...