I'm new to the forum! and I have a problem locking and unlocking the doors on my 2006 RL. Only the driver and rear passenger doors work by using the remote or the master lock button. All windows roll up and down just fine. Please help!
Try doing a search for 'door lock programming', and reprogramme your door locks.
Not sure if that will help but I remember some of the early RL's wouldn't unlock all the doors when you shifted into park, and it was because of the old fuse block.