The contact owns a 2018 Ford F-150. The contact stated that the vehicle was taken to a local dealer and repaired under Emission Recall: 24E12. The contact stated that while his wife was driving 50 MPH and on the exit ramp, the transmission unexpectedly downshifted from 5th gear to 1st gear, and the vehicle decelerated to 15 MPH. There was no warning light illuminated. The vehicle was taken to a local dealer where it was diagnosed, and the contact was informed that the transmission was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 113,000.