The contact owns a 2018 Ford Explorer. The contact stated while driving approximately 35 MPH, there was black smoke coming from under the hood. The vehicle was towed to the local dealer, who diagnosed that the battery was faulty. The battery was replaced. The contact stated that while driving, there was black smoke coming from under the hood, and the vehicle was towed to the dealer and was diagnosed with transmission failure. The transmission was replaced. Later, while driving again, the black smoke was again present coming from the hood of the vehicle, and the vehicle was towed to the dealer, who diagnosed the vehicle and determined that the engine and turbo were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 40,000.