Today this happened to me. Frozen doors and windows. Since I wasn't driving anywhere I didn't preheat the car (but that doesn't really warm up the exterior of the door anyway). In other words I pressed the door handle and the door opened... But the glass didn't roll down as usual as it was solid frozen. I freed the glass soon after but my question is: is it really bad for the car / trim /whatever when doors open but window stays in place due to freeze? It happened about 2 3 times today to each door, but first time this winter (and winter will be over soon). Thx.