Defect
On certain trucks, a defect inside the transmission could cause the park pawl not to engage when the transmission is shifted to the park (P) position. If this happens, the truck could move when it's parked, and the parking brake isn't used. Note: This recall only affects trucks equipped with a 6-speed automatic transmission.
Safety Risk
A parked vehicle that rolls away could create the risk of an injury or a crash.
Remedy
Ford will notify owners by mail and advise you to take your truck to a dealership to inspect the transmission. If metal fragments are found, the transmission will be replaced. If no metal is found, the valve body and extension housing will be replaced.