a/t shifter locked up again

[DBLO39X]

well here we go again. fixed the problem, it was the brake shifter switch which disables the lock when the shifter is in park. but now it doesnt unlock when i press the brake and this only happens when its really cold.question has this ever happened 2 any of u and if so or not what can i do 2 fix this?? i was thinking of a lock deicer down the shifter shaft. what do u think?? thanx. R.C