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:
BSD/RCTA OFF switch
BSD/RCTA OFF indicator light
If the BSD/RCTA OFF switch is pressed,
the BSD/RCTA OFF indicator light appears
on the combination meter, and the BSD/RCTA is deactivated.
Press the switch again to activate the BSD/
RCTA. The BSD/RCTA OFF indicator light
will disappear...
Grease, wax, insects, or other material on
the windshield or the wiper blade results in
jerky wiper operation and streaking on the
glass. If you cannot remove the streaks
after operating the windshield washer or if
the wiper operation is jerky, clean the outer
surface of the windshield (or rear window)
and the wiper blades using a sponge or
soft cloth with a neutral detergent or mildabrasive
cleaner...