Abstract: A power seat height adjuster mechanism for a seat of a vehicle includes a motor having an output shaft, a speed reduction mechanism cooperating with the output shaft of the motor to reduce an output speed of the motor, a nut drive mechanism cooperating with the speed reduction mechanism and having a translatable output member to rotate an adjustment component of the seat to adjust a height of the seat, and a locking mechanism cooperating with the speed reduction mechanism to allow the height of the seat to be adjusted and to prevent the height of the seat from moving once the height has been adjusted.

Abstract: A manual seat height adjuster mechanism for a seat of a vehicle includes a freewheel brake mechanism having a rotatable output pinion to engage and rotate an adjustment component of the seat to adjust a height of the seat and a locking mechanism selectively engagable and disengageable with the freewheel brake mechanism to allow the height of the seat to be adjusted and to prevent the height of the seat from moving once the height has been adjusted.

Abstract: A seat track system for a seat of a vehicle includes at least one seat track having a lower track member adapted to be fixed to a vehicle structure and an upper track member adapted to be connected to a seat and moveable relative to the lower track member. The seat track system also includes a manual positive engagement locking system cooperating with the at least one seat track to allow longitudinal adjustment of the upper track member relative to the lower track member and to positively engage the at least one seat track such that a locking element does extend through the locking plate but does not extend below the lower track member.