Originally posted by WA2FAST:
Has the windshield ever been replaced? More than likely it's bad seals on the glass somewhere... very close to where you see the frost the most. I have the same problem on my back window at the bottom constantly in freezing cold weather like this. The glass place has to re-seal my window again because of it.




This happens to me occasionally, but I found that if I leave a window open just a little bit (even less than a centimeter) it helps a lot.