564T wont Program

I recently installed a 654T into a 2005 Acura MDX. Before it left, i programmed a few options w/ the program button.

A few days later, i had to change a setting, but the alarm will not go in to program mode. When you press the program button, Nothing, and eventually, the 2-way transmitter beeps @ you.  I can program the unit w/ the bitwriter however.

Secondly, I enabled passive arming, and the unit arms while driving, regardless of the settings.   I have a feeling the vehicle is not sensing it is running, or on, and trying to re-arm itself. 

Could there be anything else i am missing,  which wire tells the alarm the vehicle is running?

any help would be appreciated.