I was wondering why the auto parking brake release didn't work the way you describe for me, I was getting intermittent results. Turns out that it only disengages the brake if you have your seatbelt fastened when you put it in gear. I was scratching my head about this and I was getting annoyed about having to continually release the brake manually, so I was thinking about turning the feature off. I was fiddling with it and it worked a few times when testing it in my garage after pulling in from driving (had seatbelt on). I put 2 and 2 together and realized you have to have your seatbelt on. Don't get me wrong, I do wear my seatbelt, but I usually buckle it as I'm backing out of my driveway, etc. I just thought I would share in case others were experiencing the same thing.