A vehicle seat assembly for supporting an occupant above a floor having a recess includes a seat cushion and seat back pivotally coupled thereto. A riser mechanism includes at least one front and rear leg, each leg extending between a lower end pivotally coupled to the floor and an upper end pivotally coupled to the seat cushion. A seat adjustment mechanism disposed between the seat cushion and upper end of the rear leg is operable between locked and unlocked states allowing the legs to pivot about the lower ends thereby moving the seat assembly between a seating position and a stowed position disposed in the recess. An arcuate channel is operatively coupled to the rear leg selectively receiving a laterally extending guide pin mounted to the front leg for operatively coupling the front and rear legs to rotate together as the seat assembly moves between the seating and stowed positions.