The contact owns a 2018 Ford Escape. The contact stated that while driving approximately 20 MPH, the check engine warning light started flashing, and the message ‘Engine Fault’ was displayed. The vehicle was taken to a certified mechanic, where the contact was informed that the coolant reservoir was empty, and the coolant reservoir was refilled. The vehicle was taken to the dealer, where it was diagnosed that the water pump had failed and needed to be replaced. The water pump was replaced; however, the failure recurred approximately three and a half hours later. The vehicle was inspected by a certified mechanic who noticed that the coolant reservoir was empty and refilled the coolant reservoir; however, the mechanic noticed that the coolant had lowered by a quart the following morning. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was filed. The manufacturer referred the contact to the NHTSA Hotline to file a vehicle safety complaint. The failure mileage was unknown.