Abstract: A seat assembly includes a seat and a headrest connected to the seat and movable between a first position and a second position with respect to the seat. The seat assembly also includes a biasing element biasing the headrest toward the second position. A releasable headrest restraining mechanism restrains the headrest in the first position when the seat is unoccupied and releases the headrest to permit movement of the headrest via the biasing element to the second position when the seat is occupied. A method of moving the headrest is also provided.

Abstract: A six-way powered seat adjuster slide unit which in a preferred embodiment includes a top rail with first and second ends for mounting a vehicle seat; a bottom rail with first and second ends for supporting the top rail; a floor rail for slidably mounting the bottom rail in a fore and aft position; a first forward powered jack screw unit pivotally connected to the bottom rail and having a rotative shaft, the first jack screw unit having an upper pivotal axis in a position axially fixed with respect to the first end of the top rail; an elevator arm pivotally connected adjacent to the second ends of the top and bottom rails; a second rearward powered jack screw unit with a rotative shaft having a pivotal axis with the bottom rail and the elevator arm; and a motor fixed with the bottom rail allowing a gear to mesh with a portion of the bottom rail for providing selective fore and aft adjustment of the adjuster slide unit.