I have recently noticed living in Hawaii that my rear defroster windows does not work, just on random days. I checked all plugs and checked all fuses and I then called a Local Hawaii Chevrolet Dealership (Cutter Chevrolet). All they would do is continue to not know the answer and transfer me to someone that also did not know the answer, then hung up on me.

I am planing on going to the dealership to see what is the problem.