Two problems related to warnings have been reported for the 2020 Volkswagen Jetta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2020 Volkswagen Jetta based on all problems reported for the 2020 Jetta.
Volkswagen mandatory software update/campaign 24fi corrupted the ocu/telematics firmware on my vehicle. This firmware corruption deactivated the critical emergency sos safety system (automatic crash notification), leaving a persistent red fault light on the overhead console. The dealership confirmed the internal malfunction code(b105207 & b200049) occurred immediately after they performed the flash, but the manufacturer is refusing to remedy the compromised safety system at no cost.
Hit a pot hole in the road and vehicle completely shut down and will not crank. Diagnostic code u0100 is saying that the ecm and pcm are no longer communicating. If I had been on the highway or in a high traffic area that could have been a life threatening situation as everything is run through the electronics of the car.