Right tail light on 2006 mustang remains on after car is shut.

Believe it or not I had the same issue with the right brake light, my brother said it was something to do with the bulbs in the 2006, I replaced all the bulbs on that side and have not had the problem since

Hi, I have the same issue with my 06 GT. other lights have done the same thing. of course the dealership says if they cant duplicate the problem, they cant do anything. I did talk to another mechanic at a "good" shop and he said it sounded like the BCM module ( body control module). I may put a new one in and see if that fixes it.