Activate and use the lumbar support control by pressing the four-way control upwards/downwards/forwards/backwards.Raise/lower the front edge of the seat cushion by moving the control up/down.Raise/lower the seat by moving the control up/down.Move the seat forward/rearward by moving the control forward/rearward.Change the backrest tilt by moving the control forward/backward.Only one movement (forward/rearward/up/down) can be performed at a time.The front seat backrests cannot be folded down completely.The head restraint can be adjusted up or down by pressing the button and manually moving the head restraint to the desired position.