PASSENGER HEADREST HEIGHT ADJUSTMENT SYSTEM

A vehicle headrest height adjustment system includes a vehicle seat having a seat back, a seat base and a headrest. A sensing device generates a signal when the vehicle seat is unoccupied by an occupant. A headrest displacement mechanism is connected to the headrest and reversibly displaces the headrest between a headrest extended position and a headrest retracted position. The headrest displacement mechanism lowers the headrest to the headrest retracted position when the signal is received from the sensing device that the vehicle seat is unoccupied by the occupant defined when the occupant is not present.