The contact owns a 2016 Ford Explorer. The contact stated that while driving at various speeds, the engine overheated with the temperature gauge indicating that the engine was hot(H). The vehicle was taken to an independent mechanic where the water pump was replaced. The contact stated that several months later while in reverse(R), the vehicle failed to accelerate while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was towed to the dealer for a diagnostic test and remained with the dealer for months. The contact was informed that the vehicle had failed to accelerate while in drive(D) or reverse(R). The dealer later diagnosed the vehicle with transmission failure and the contact was provided an estimate for the repair. The manufacturer was notified of the failure and the contact was provided a case number. The vehicle was towed to an independent mechanic where it remained unrepaired. The failure mileage was approximately 102,000.