While washing the car yesterday, I noticed a significant crack in our new (2+ week-old) windshield. I believe that this is a stress fracture, and hence a manufacturing defect, and not related to a road hazard or other accident. Note that the crack proceeds from the free edge of the glass at its mounting, that it is forked from that side, and that there is absolutely no indication of an impact. There is no crater, circular mark, missing chip, etc. I believe that this happened over the weekend while driving near Whistler, BC. I was alone in the car at night on a quiet road with no traffic, and heard a sudden "pop" somewhere in the car (could not place it at the time). It may be of note that this was the first time the car was subjected to freezing temperatures (-6º C). Tesla has been contacted, and is being typically very cooperative. Update when I know more.