I went out to my car to go to school and started leaving and about 5 minutes after I turned on the rear defroster the car just dies. It is like it has had a complete power failure, because none of the electrical stuff is working, not even the headlights. Then after about 15 seconds all of the power comes back. So what the cause is, I have no idea, all I know is that it is a real pain to not be able to use the rear defroster in the winter.