When I bought mine in December, I sat in every one the dealer had and the seats on every one wouldn't move properly. I just used a light coat of lithium grease and problem solved. Works good and lasts longer than some lubricantsMine binded up from the dealer. I had them fix it before I took it home.
When I looked at it on the floor, neither the salesman or myself could make it move.
Both me and my wife are about the same height, so we pushed it back all the way and it stays there.