There are two kinds - one is nothing but a hot air blower that warms the window, the second one is the tiny little lines crossing through your back window. Those lines are small heating elements that slowly warm your window from the inside out to a temperature where moisture evaporates (and ice melts).
No, the rear defrost is just an electric grid on the rear window. No air movement involved.
This can be caused by bad wiring, or bad fuses. This can also be caused by a draining battery, or an alternator that is not keeping charge.?æ
The heat is transfered from the front vents and does not work when the defrost mode is on. www.trailvoy.com
Rear defrost - One side or the other, screws to body at back glass.
The 2005 Chrysler 300 rear window defrost relay switch can be found beneath the drivers side dashboard. The rear window defrost relay switch will be near the center console.
check the fuseor the plugin at the rear window or mabey a broken wire
Bulbs may be blown.
rub it
The rear window has probably been replaced at some point with one that has defrost. The rear window has probably been replaced at some point with one that has defrost.
The rear windscreen defroster does not work. I have pressed the right button to defrost the windscreen when raining or cold
In situations like this it is best to have a diagram to help. A diagram rear defrost wiring system of a 1999 Sunfire can be found in its maintenance manual.
The fuse box is under the hood - the rear defrost should have a fuse, if that does not help - contact your nearest Toyota service or parts department......Mike