Photosensors

Photosensors
The mirror has a photosensor attached on both the front and back sides. During nighttime driving, these sensors detect distracting glare from vehicle headlights behind you and automatically dim the mirror to eliminate glare and preserve your vision. For this reason, use care not to cover the sensors with stickers, or other similar items. Periodically wipe the sensors clean using a piece of dry soft cotton cloth or an applicator.
See also:
Precautions against vehicle modification
WARNING
To avoid accidental activation of the system or rendering the system inoperative,
which may result in serious injury, no modifications should be made to any components
or wiring of the SR ...
Rear window wiper blade assembly (Outback)
1. Raise the wiper arm off the rear window.
2. Turn the wiper blade assembly counterclockwise.
3. Pull the wiper blade assembly toward you to remove it from the wiper arm. ...
Horn
To sound the horn, push the horn pad. ...
