Following the cold snap our Fit had all the doors stuck fast with ICE, and even though the fob opened all the buttons entry was not possible. Later we gained access through the tail gate, and then had to thump the drivers door from the inside to break the frost hold. Engine started no problem, so I re locked with the fob, All doors including tail gate locked I heard them, the buttons went down on the front passengers and both rear doors, but the drivers door did not lock. I used the fob to re open the car, again all but the drivers door opened, I had insert the key in order to open. I am able to open ALL DOORS with the key, and LOCK ALL DOORS with the key. The fob refuses to open the drivers door. Ideas please.