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:
Auto Start Stop warning light (yellow) (type A)
Auto Start Stop warning light (yellow) (type B)
The Auto Start Stop warning light will
illuminate in yellow when initially turning
the ignition switch to the “ON” position. The
light will turn off after the engine has
started...
WARNING
Before beginning work on or near
any battery, be sure to extinguish
all cigarettes, matches, and lighters.
Never expose a battery to an
open flame or electric sparks.
Batteries give off a gas which is
highly flammable and explosive...