I pulled out the manual, I think it said press the middle BMW button on the key, then put it in the ignition. That disarmed it. I tried calling Servce on my lunch break....busy. Will try again tomorrow. In the meantime, I an in no way duplicating the scenario . No satellite radio, no shifting in manual mode. That's the only things I've done differently.
2013 X1 x28i
2006 Mustang GT Vert