See also:

Defogging logic
To reduce the probability of fogging up the inside of the windshield, the air intake is controlled automatically according to certain conditions such as or position. To cancel or return the defo ...

2011 Hyundai Elantra review
Either I'm getting finicky in my old age or Michigan's never-ending winter is getting to me. Even though the 2011 Hyundai Elantra looked cool and handled well over hard-packed snow-covered roads, ...

Fan speed control
The ignition switch must be in the ON position for fan operation. The fan speed control knob allows you to control the fan speed of the air flowing from the ventilation system. To change the fan ...