The contact owns a 2018 Ford Escape. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The contact stated that an unknown error message related to the coolant was displayed on the instrument panel. The vehicle was taken to a local service center, where it was diagnosed with a blown head gasket due to coolant intrusion into the cylinders. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.