Having the following messages:
Forward Smart City Break Malfunction
Front Radar Sensor Failure
Smart Brake System Malfunction
All three messages occur at the same time. Third time this has happened over the last month. If I turn engine off and restart car runs fine. Dealer doesn't have a clue at this point. Car only has 27K miles. Any sympathizers out there?

 

I suspect the dealer already mentioned this but...

Make sure the sensors are clean. I have had it happen when snow builds up on the front of the car.