I have a 07 Tahoe LT, the problem I have is the rear passenger lock will sometimes gets stuck in the open position. The problem is very consistent, I can close the door all the way but the latch doesn't engage. When I do manage to get the door locked the interesting thing is if I press the unlock on my key fob the door lock jams and won't open at all. The only way for it to get unstuck at this point is for me to be physically in the vehicle, all doors closed, lock and unlock and only then will it unjam the door. Does anybody have a clue as to what component of the door lock is at fault here?