General information

Rear window defogger system

The rear window defogger system will only operate when the ignition switch is in the On position. When the defogger switch is in the On position, an electric heater grid on the rear window glass is energized.

The electric heater grid produces heat to help clear the rear window glass of ice, snow, or fog.

The defogger system is controlled by a momentary switch in the rear window switch pod installed in the instrument panel lower bezel, which also includes the switch for the rear wiper and washer system. An amber indicator lamp in the switch pod will light to indicate when the defogger system is turned on. The rear window switch pod also contains the defogger system control circuitry including the timer logic and the defogger relay.

The defogger system will be automatically turned off after a programmed time interval of about ten minutes. After the initial time interval has expired, if the defogger switch is turned on again during the same ignition cycle, the defogger system will automatically turn off after about five minutes.

The defogger system will automatically shut off if the ignition switch is turned to the Off position, or it can be turned off manually by depressing the defogger switch a second time. Following are general descriptions of the major components in the defogger system. Refer to the owner's manual in the vehicle glove box for more information on the features, use and operation of the defogger system.

Heated mirror system

The heated mirror system will only operate when the ignition switch is in the On position. When the rear window defogger switch is in the On position, an electric heater grid located behind the glass of each of the outside rear view mirrors is energized. When energized, each of these heater grids produce heat to help clear the outside rear view mirrors of ice, snow, or fog.

The heated mirror system is controlled by a momentary rear window defogger switch in the rear window switch pod installed in the instrument panel lower bezel, which also includes the switch for the rear wiper and washer system. An amber indicator lamp in the switch pod will light to indicate when the defogger system is turned on. The rear window switch pod also contains the defogger system control circuitry including the timer logic and the defogger relay.

The heated mirror system only operates in concert with the rear defogger system, and will be automatically turned off after a programmed time interval of about ten minutes. After the initial time interval has expired, if the defogger switch is turned on again during the same ignition cycle, the heated mirror system will automatically turn off after about five minutes.

The heated mirror system will automatically shut off if the ignition switch is turned to the Off position, or it can be turned off manually by depressing the defogger switch a second time. Following are general descriptions of the major components in the heated mirror system. Refer to the owner's manual in the vehicle glove box for more information on the features, use and operation of the heated mirror system.