If your vehicle has this feature, do the following:
Caution: If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked.
Caution: A safety belt that is improperly routed, not properly attached, or twisted will not provide the protection needed in a crash. The person wearing the belt could be seriously injured. After raising the rear seatback, always check to be sure that the safety belts are properly routed and attached, and are not twisted.
To raise the seatback, push the seatback up to return it to its original position.
Push and pull on the seatback to make sure it is latched securely in the fully upright position.