Its a forward speed thing. I have gone in reverse and stopped for over 1 minute and the camera stays on. Once you move forward and reach some defined speed 5 or 10 mph, it turns off. I guess it could be on a timer though, but if so, that timer does not start until the car starts going forward. I will have to check out if it goes off faster when I pull out faster, and slower when I pull out slower. I truly wish the sensors worked the same, and am hoping there is a fix, whether via vag-com, or maybe Audi themselves could step up to the plate--- fingers crossed!Does the camera turn off after going 10 MPH? I thought it was on a timer. I never tested it.