Originally Posted by bgilly
Paul, is that based on personal experience or is there documentation you've seen stating this?
I believe I recall reading it in the documentation, Quadra told me when they gave me the demo (bought direct from them aftermarket), and I know I've read it on the net. Not that the net is the best source, I know. But it makes sense. When you put the vehicle into park, it's tied into the rear wheels. If they don't have a lock to the ground, the vehicle could roll away. I guess technically it would scrape away on the jacks but you get the idea.
I did it once on an unlevel site using auto level. Once I noticed, I dropped it back down and used a combo of Lego blocks and manual mode.