The contact owns a 2022 Mazda CX-9. The contact stated that the vehicle was being operated with the front driver's side seat warmer activated to the highest heat level. After driving for several hours, the vehicle was parked. While exiting the vehicle, the contact experienced pain in the rear thigh area of each leg. Upon inspect the contact discovered that the rear thigh area of both legs had sustained burning and blistering despite having pants on as a barrier during the failure. During the injuries, the contact was wearing pants. The contact was later treated at the local urgent care center for first-degree burns and blistering caused by excessive heat from the seat warmer. The manufacturer was notified of the injuries and advised to have the vehicle examined by the local dealer. The vehicle was taken to the local dealer, who was unable to detect a failure in the operation of the seat warmer, and no problem was found. The contact inquired about the temperature of the seat warmer and what its highest temperature level is; however, that information was not provided, and the manufacturer stated that it is the temperature at which the occupant felt comforable with. No further information was available. The failure mileage was 53,000.
NHTSA ODI 11728503