Reminds me of trying to figure out how to make the power seats go down in a rental car at 3am. Seat was up so far my head was pressed against the headliner. To control the seat there were three switches under the seat on the left. That was easy enough to find though not obvious. But flipping each switch up and down and the seat would move some direction. Except up and down.

Found one page in the back of the owners manual that showed 'one' of the switches in addition to up and down moved right and left.