The contact owns a 2018 Ford Focus. The contact stated that the transmission was slipping and failed to properly shift into the intended gear. The contact stated that the engine was overheating, causing the vehicle to become inoperable. The check engine warning light was illuminated. The vehicle was taken to a certified mechanic who diagnosed and determined that the dual clutch had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 66,000.