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:
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Ignition switch light
For easy access to the ignition switch in
the dark, the ignition switch light illuminates
when the driver’s door is opened or
when the driver’s door is unlocked using
the remote keyless entry ...
