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:
Tire labeling
Many markings (e.g. Tire size, Tire Identification Number or TIN) are placed
on the sidewall of a tire by tire manufacturers. These marking can provide you with
useful information on the tire. ...
Auto-dimming mirror with compass and HomeLink® (if equipped)
1) HomeLink® button 1
2) HomeLink® button 2
3) LED
4) HomeLink® button 3
5) Sensor
6) Automatic dimming on/off button
7) Compass display button
8) Compass display
The auto-dimming mirror has ...
2010 Subaru Tribeca review
Vehicles take years to create.
Unlike newspapers, which can create a new front page in the time it takes to
reset a ripped paper roll, cars and trucks don't magically transform themselves
during ...
