Remote Starter

I just purchased a 2012 Explorer Base.

The dealer installed the ford remote start. They claim the remote start module is already built in the explorer. What they needed to do was just program the bidirectional remote to work in the system. This cost me $425.
They also gave me an additional one button remote as well.

So the question is how does the bidirectional work with the one button remote. Does anyone know the difference?

Thank you,

i just purchased a 2012 base ex for my wife i would be interested in a reprogram for remote start sooooooo i am wathching this thread
brianj

The Bi Directional system needs the installation of an additional receiver that requires the headliner to be removed in the front.