Thread: BMC replacement?

So I've got an 06 GT and I suspect the BCM is going bad. All the door locks except for the driver door quit working. The remote start on the key fob doesn't work anymore and my trunk release quit working. I also get a "Service Vehicle Soon" message every time I start my car and turn it off.
I am fairly certain the BCM is bad but I don't want to pay $500+ at the dealership for a new one. My question is can I get a used one off of ebay or something and just get it programmed to my car at the dealership? It would save me a lot of money.

Also, I don't know if this has anything to do with my problem, but the airbag light on the gauge cluster is on now.

The driver door lock is the only one that does work. The other three doors along with the trunk quit working one day at the same time so I'm pretty sure it's not a bunch of actuators gone bad all at once. This all happened a couple of months before I got the SVS light, and the airbag light came on a couple of months after that. I'll go to the dealership today and see what codes they pull and they might be able to shed some light on the situation. However, if it turns out to be the BCM, does anyone know if I can get a used one and have it programmed to my car at the dealership or does it have to be a new one?