The contact owns a 2012 Hyundai Sonata. The contact stated that while her daughter was driving at undisclosed speeds, the vehicle was jerking abnormally. The passenger's side front tire was extremely hot. The contact stated that the RPM increased to high, and the vehicle lost motive power while driving. The contact stated that while the accelerator pedal was depressed, the vehicle was slow to respond. There was an abnormal electrical burning odor detected. The vehicle was hard to start. The contact stated that the check engine and ABS warning lights were illuminated. On several occasions, the vehicle was taken to the local dealer, who was unable to retrieve any DTC trouble codes. The bearing was fine but was replaced at the owner's request. The mechanic test-drove the vehicle for five hundred miles but was unable to duplicate the failure. The mechanic informed the contact that the ECM was fried. The ECM was replaced, but no update was provided. Additionally, the mechanic informed the contact that the wiring harness had a short circuit and that the wiring harness needed to be replaced. The vehicle was repaired, but the failure persisted. The manufacturer was contacted, but no assistance was provided. The failure mileage was unknown.

- North Augusta, SC, USA

The contact owns a 2012 Hyundai Sonata. The contact stated while driving 70 mph, the accelerator pedal was depressed however, the vehicle failed to respond. The vehicle decelerated independently with the Electronic Stability Control warning light illuminated. The contact was able to drive to the residence. The vehicle was not diagnosed or repaired. A dealer was not contacted. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 15V759000 (Exterior Lighting) however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 141,000.

- Hopewell, VA, USA

The contact owns a 2012 Hyundai Sonata. While driving highway speeds, the vehicle experienced a loss of power without warning. The vehicle was taken to South bay Hyundai (20433 hawthorne blvd, torrence, ca) where it was diagnosed that the accelerator pedal assembly and fuel pump were defective and needed to be modified. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 56,052.

- Los Angeles, CA, USA

The contact owns a 2012 Hyundai Sonata. The contact stated that while idled, the accelerator pedal was depressed but the vehicle hesitated to accelerate. In addition, the vehicle lunged forward and the contact was able to avoid a collision. The vehicle was taken to a dealer where it was diagnosed that an ECU upgrade needed to be performed. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 42,800.

- Borden, IN, USA