The contact owns a 2019 Ford Edge. The contact stated that while driving at slower speeds, the vehicle surged, and the failure progressed while driving at faster speeds. No warning lights were illuminated. The vehicle was taken to a local dealer where it was diagnosed and determined that the torque converter needed to be replaced. The vehicle was not repaired; however, the parts were ordered. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 79,000.