The rear split bench seatbacks have three available positions -- folded forward, upright, or partially reclined. Each of the rear seatbacks can be moved to any of the three positions independent of the other seatback position.
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.
Prior to lowering the seatback, ensure all three of the seatbelts are unbuckled and the front seats are not reclined.
Lift the lever on the upper back corner of the seatback to move it to the desired position and then release it. Push and pull on the seatback to be sure it is locked in place.