I had no problems with mine in the cold. I slept outside with it in the teens and left it in the truck as well every night when temps were at or below freezing. That said, each day got to or above freezing eventually, so maybe if you left it there for a few days? Can't say, but I did not have this problem. My guess would be some outliers, like with a selection of early units? Don't know, but again, I did not experience any problems in the cold with mine.