I think posts 9 and 10 nailed it! These new cars (and NOT just the Crossfire) show some odd symptoms with old or weak batteries.

I changed my battery this past summer because it was four years old and they have a habit of failing with NO warning.

If that battery is old, change it now anyway! THEN go looking for trouble with the RCM or other things if needed.

Come to think of it, my Durango showed odd alarm problems right before the battery failed. And when the battery DID fail, the engine would turn over but not start.
All it was, after an expensive tow, was the battery.