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:

    Rear passenger cup holder (if equipped)
    Rear passenger cup holder (if equipped) A dual cup holder is located on the rear seat center table. ...

    Revised 2.5-liter Boxer Engine with New 6-Speed Manual or CVT
    The 2010 Subaru Legacy 2.5i models are powered by a revised 2.5-liter 4-cylinder Boxer engine, teamed for the first time to a new 6-speed manual transmission or the available new Lineartronic™ CVT ...

    How to insert a CD (type A)
    While the ignition switch is in the “Acc” or “ON” position, hold a disc with a finger in the center hole while gripping the edge of the disc, then insert it in to the slot (with the label side up) ...