There can be several reasons a rear defroster fails even when the light on the defroster switch indicates it is on.
The most likely reason is that one of the metal defroster tabs along the side of the back window has separated from the defroster.
If the defroster tabs check out as still attached to the defroster then you need to do a little checking with a volt meter. The first thing to check is the voltage directly on the tabs themselves. This should be around 12-14 volts. If the voltage is zero then there is very likely a broken wire someplace between the defroster relay and the defroster.
If you have 12-14 volts a the defroster tabs then there is something going on with the grid which is normally broken defroster elements, those long thin horizontal lines on the back window.
I believe when you turn on the rear window defroster the heated mirrors also turn on
On my 2005 Pacifica, the antenna is located in the passenger side trunk window. Looks similar to the defroster wires that are on the back window
The antenna is embedded in the passenger side window furthest to the rear. It looks a lot like the defroster wires on back windows.
They are not backlit
under the dash
Probably in the fuse block under the rear passenger seat on the drivers side. Good idea to check the relays also. www.trailvoy.com Trailblazer enthusiasts forum.
There's a wire in the windshield where the wipers rest that heats up like a rear window defroster. It comes on automaticly when the outside temp drops below 40deg.
where is the power window fuse located for a 2005 chev impala
The Chemical Window was created in 2005.
The King in the Window was created in 2005.
Through a Window - 2005 was released on: USA: 15 June 2005 (48 Hour Film Project)
The atenna is located on the rear windshield. Its the 2 top strips of the defroster strips.