Originally Posted by lymphomaniac
Hmmm... I'm almost certain that that's not how mine works. If I'm in D mode, and then I do a down-up in quick succession (ie. upshift within 5 seconds of downshifting), it'll hold it in that "gear" until about a half minute later, regardless of whether I step on the gas or not. The only time I've come across where it auto-resets to D in less than about half a minute of "shifting" is when I reach a full stop.
Not sure if that answers your question...?
Only as a data point: Mine acts the same as described above.