The contact owns a 2015 Kia Optima. The contact stated while driving approximately 45 MPH, the air bag warning light was illuminated. The contact stated while driving at various speeds, the vehicle was jerking. The contact stated that while depressing the brake pedal, the vehicle failed to respond. The traction control, air bag, power steering assist, ABS, and check engine warning lights were illuminated. The vehicle was taken to an independent mechanic twice, and the front passenger-??s side wheel speed sensor and the ECU were replaced twice; however, the failure persisted. The mechanic advised the contact to take the vehicle to the local dealer. The vehicle was taken to Clay Cooley Kia (1247 E Airport Fwy, Irving, TX 75062) where it was diagnosed that the ECU needed to be replaced. The vehicle was repaired; however, the failure recurred, and various unknown warning lights were illuminated. The vehicle was then taken to Vanguard Kia of Arlington (1501 E Interstate 20, Arlington, TX 76018) where it was diagnosed that the ECU, front passenger-??s side wheel speed sensor and air bag clockspring needed to be replaced. The vehicle remained at the dealer awaiting the repair. The manufacturer was made aware of the failure. The approximate failure mileage was 200,000.

- Addison, TX, USA