Car been running great and ran fine to store. 30 minutes later came out and started but died. Did same on second try. Third try wouldn't even turn over. Battery good. Thought maybe key fob bad but second fob wouldn't work either. Neither fob would even lock the doors.Towed to Chrysler dealership after Mercedes refused service and Chrysler cannot figure out the problem.Say they don't have the "old technology" to determine problem. Been told by independent mechanic that could be "halo" system in car has failed and will not read the chip in the fobs.
Help!