The contact owns a 2017 Ford Fusion. The contact stated while driving 65 MPH and attempting to depress the accelerator pedal, the vehicle failed to respond as needed. The local dealer was contacted. The vehicle was taken to the dealer where it was diagnosed and determined that there was coolant leaking into the cylinder block and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, opened a case, and referred the contact to the NHTSA Hotline for assistance. The contact related the failure to TECHNICAL SERVICE BULLETIN: 19-2172 (Coolant in Cylinders, White Exhaust Smoke And/ Or Illuminated MIL). The failure mileage was 47,000.