My 2001 S80 somehow decided that it disliked it when I would adjust my driving position while the vehicle was in motion. So it stopped cooperating. But when a would restart the car later - before I'd closed my door and put it in gear - it would allow me to move the seat to any position. Then on the same trip a mile down the road if I attempted to move it again it refused. Is this due to some kind of optional "lockout" key that operates like a child proof window lock key for example? Something that I may have inadvertently actuated one day when I didn't realize what I was doing? Or does it sound like a malfunction? Pat