The contact owns a 2024 Ford Bronco. The contact stated while driving at an undisclosed speed, the contact noticed a burning odor in the interior of the vehicle. The contact stated an error message indicated service 4WD was displayed. In addition, the contact stated that when the vehicle was parked in the garage, the contact noticed a burning odor on the exterior of the vehicle. The vehicle was taken to the dealer, however the failure was not duplicated. The dealer performed an oil change. The contact stated that seven days later, the failure occurred. The contact stated while driving at an undisclosed speed, the contact noticed fire coming from underneath the hood. The contact and her daughter were occupants of the vehicle. The contact stopped and parked the vehicle. The contact and her daughter exited the vehicle. No injuries were sustained. The vehicle was towed to the dealer, which was the dealer that performed the diagnostic test and the oil change the week prior to the failure. The contact received documentation which provided several unknown parts related to the power train and electrical wiring that were replaced. The contact stated that no official failure diagnostics were provided. The vehicle manufacturer was not made aware of the failure. The failure mileage was approximately 18,000.