It has happened to me a few times at a stop of a slight uphill incline, and the Auto Stop activated. As soon as I got my foot off the breaks, the car started to roll backward! It got me scared! And this morning, with the engine was still on, i got to my driveway (uphill incline) with my foot off the gas pedal, and the car rolled back! Did it happen to anyone? Is this due to the fact that the car not having the traditional "gear box"? I don’t want to cause an accident. What should I do to avoid this?