Pull up and push in on the front of the rear seat cushion, and then lift it outward to take it out of the vehicle. For installation, put the rear seat cushion into the vehicle and make sure the center wire hook on the back is snapped onto the seat back frame. Insert the buckles of the rear seat into the slots of the cushion, then push and move it back to lock it into the number 4 bar. In the end, gently tug the front of the cushion to see if it is locked into position.