Ford is bringing vehicles back into the shop.
The recall involves 2010 Ford Fusions, Explorers and Explorer Sport Tracs along with 2010 Mercury Milans and Mountaineers.
The front seat manual recliners need to be replaced. Investigators say the seat back and head restraint could move towards the back in a crash.
Ford says there have been no accidents or injuries because of the defect.
Dealers will replace it free of charge.
