I played with it again today while waiting for my test drive appointment and experienced the same thing... But...
I think it may be my misunderstanding. I expected to click the buttons and have it move up or down a click, and that didn't happen.
But, when I got in the test drive car I tried adjust the wheel and it wasn't responding. It turns out, there is about a noticeable fraction of a second delay before it starts moving, so I wasn't holding the button down long enough to move the wheel. I'd press, it wouldn't move, I'd release and think it wasn't working. When I realized that I had to press and wait it worked fine.
Perhaps that was my problem. I didn't go back to the studio to try again.