OP, I'm having the same issue as you on my 2012. Car doesn't recognize FOB key, can't lock/ unlock doors, no ignition, only goes to the on position and freezes until i disconnect battery. i tried everything, seems i will be bring it to the dealer for a reprogramming service. Do you have both fob key lights on?
Video>>
https://www.youtube.com/watch?v=4TuvSLMpraE
