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.
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:

    Front position light
    1. Turn the socket counterclockwise and pull it out. 2. Pull out the bulb from the socket and replace the bulb with a new one. ...

    Tire pressure monitoring system (TPMS) (if equipped)
    The tire pressure monitoring system provides the driver with the warning message indicated by sending a signal from a sensor that is installed in each wheel when tire pressure is severely low. ...

    Safety & Pricing
    The new Legacy has yet to be tested by the Insurance Institute for Highway Safety. Standard safety features for 2010 include six airbags, an electronic stability system and antilock brakes. Click ...