An engine coolant leak on the engine caused the engine to overheat. This could have led to a possible fire. If we were on a highway or freeway when this happened and the car cut off, this could have caused an accident. There were NO warning signs or lamps that came on before this issue that would have alerted us to this issue. I had the vehicle towed into the Ford dealership and the diagnostic was engine failure due to a coolant leak. The engine coolant leak has been a known issue on the 2018 Ford Escapes by the manufacturer.