NHTSA Complaint #11461321 — 2013 HYUNDAI SONATA

Our car has 70,000 miles on it and has driven just fine. We recently had the battery replaced after it died and had no problems afterward. Then, a month later, the car started to lurch whenever we accelerated on the highway. The very next time we drove, we received an error message that read "Hybrid System Malfunction, Safely Pull Over and Do Not Drive." We did this, turned the car off, restarted it and safely drove to the dealership. The dealer then said they could not replicate the issue and they reset the hybrid system. We picked up the car and immediately started having the lurching issue again, and then the light came on that said Hybrid System Malfunction. The car then was having trouble accelerating and kept flashing at us until we got back to the dealership. The dealer said there was no signal to let them know what is wrong with the vehicle, but it is not un-driveable and put us in a very dangerous situation not being able to accelerate safely on the highway. The dealer had to call an engineer and they have determined it to be a problem with the transmission, but they are not able to guarantee that this will fix the problem.