Operation CHARM: Car repair manuals for everyone.

Rear Window Defogger Switch

The rear defogger switch, when activated slowly heats the rear window to remove interior fog or outside snow and ice. The switch has an integral lamp and will operate for five or ten minutes depending on such conditions as vehicle speed, outside window temperature, atmospheric pressure and number of passengers.

The switch will automatically turn off through the use of a timer or may be turned off by either the instrument panel switch or by turning the ignition switch to "OFF".

The rear defogger switch is located with the HVAC controls