Defect
On certain vehicles, the pivot bolts in the height adjuster assembly for the front seats may not have been manufactured properly. As a result, the bolt(s) could loosen and detach. If this happens, the seat(s) could move in a crash.
Safety Risk
A seat that moves in a crash could increase the risk of injury.
Remedy
Ford will notify owners by mail and advise you to take your vehicle to a dealership to inspect and, if necessary, replace the height-adjust link(s) and pivot bolts.