Heated mirror
To demist or defrost the outside rear-view mirrors, press the rear window demister switch.
The indication lamp (A) will illuminate while the demister is on.
The heater will be turned off automatically in about 20 minutes.

See also:
Safety
The Mitsubishi Outlander Sport earned top scores of Good in the Insurance
Institute for Highway Safety's front- and side-impact crash tests. It hasn't
been tested for rear impact or roof strength ...
Operating the air conditioning system
Heating
Set the mode selection dial to the
position and set the air selection switch (A) to the outside position.
Turn the temperature control dial clockwise or anticlockwise to the desired temper ...
Performance
...
