What a coincidence... Mine did the exact same thing this week. I had to disconnect both shore power and 12v to get it to reset.
Funny thing is, my 15 year old techie son just got a new handheld two way radio a couple weeks ago. Now, I wonder if that might have caused it. Hmmm...
2014 Ram 3500 - DRW - 4x4 - 6.7L - 68RFE - B&W Companion
2015 Montana High Country 340BH