Heated Glass Element: Description and Operation
HEATED GLASSRear Window Defogger:
The electrically heated Rear Window Defogger, Heated Power Side View Mirrors, and Heated Windshield Wiper De-icer is available on all models.
The Rear Window Defogger system consists of two vertical bus bars linked by a series of grid lines on the inside surface of the rear window. The electrical circuit consists of the rear defogger switch in the and a relay with timer switch to turn OFF the system after ten minutes. The main feed circuit is protected by fuse one (40 amp) in the Power Distribution Center (PDC). The rear defogger switch and relay also activates the heated power side view mirrors and heated windshield wiper de-icer. The HVAC rear defogger switch is protected by fuse ten (10 amp) in the Junction Block. The heated mirror circuit is protected by fuse 7 (10 amp) in the junction block. The heated windshield wiper de-icer circuit is protected by fuse 9 (10 amp) in the Junction Block.
Heated Windshield Wiper De-icer:
The Heated Windshield Wiper Deicer is also activated when the DEFROST mode is selected on the. In the DEFROST mode the rear defogger relay/timer is bypassed, the heated windshield wiper de-icer will stay ON until the another mode is selected.
CAUTION: Since grid lines can be damaged or scraped off with sharp instruments, care should be taken in cleaning the glass or removing foreign materials, decals or stickers. Normal glass cleaning solvents or hot water used with rags or toweling is recommended.
REAR WINDOW DEFOGGER SWITCH
The rear window defogger switch is integrated into the HVAC control panel.
A LED indicator will illuminate when the switch is activated. The switch energizes the timing circuit and activates the rear window defogger relay. The relay controls the current to flow to the grids of the rear window defogger, heated power side view mirrors and the heated windshield wiper de-icer. The defogger relay will be on for approximately 10 minutes or until the control switch or ignition is turned OFF.