The contact owns a 2020 Ford Explorer. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly downshifted, hesitated, and jerked abnormally. There was no warning light illuminated. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and a case was opened. The contact was also referred to the NHSTA Hotline for assistance. The approximate failure mileage was 97,000.