(AP) — General Motors is recalling nearly 22,000 full-size pickup trucks to fix problems with the seats.

The recall affects Chevrolet Silverado and GMC Sierra pickups from the 2014 model year that were sold in the U.S., Canada and Mexico. The trucks have manual front reclining seat backs.

Canadian safety regulators say the seats could move in a rear-end crash, and the headrests may not protect passengers as designed.

GM says it doesn’t know of any crashes or injuries caused by the problem.

Dealers will inspect the seat backs and adjust them if needed.