Photosensors

The mirror has a photosensor attached on 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:
Turbocharged Power
The 2.5-liter four-cylinder engine from last year's WRX really is a hoot to
drive, and it's just as strong in the 2009 Impreza 2.5GT. Whether you're
cruising around the city or driving on the high ...
Ventilation
To force outside air through the instrument panel outlets:
1. Set the air inlet selection button to the OFF position.
2. Press the “” button.
3. Set the temperature control dial all the way left.
...
Manual transmission, front differential and rear differential gear oil
For the checking procedure, or other details, refer to “Manual transmission
oil”, “Front differential gear oil (AT models)”, “Rear differential
gear oil”. ...
