So, I had the same error this morning coupled with the high voltage system error. Check the battery voltage, it was 12.5v. Put an automatic charger on the battery, something was pulling about 8 amps but otherwise it made no difference. So after tearing some hair out what I did was pull the negative terminal, count to ten, and reconnect it (unplugged it and plugged it back in). All the warning lights came on and turned off one at a time - but the car was driveable. The cruise gave me an error until I got to work, parked it, and turned it back on. Then that too cleared up. I don't think this is a hardware problem, I think it's a software problem. My gut tells me that when all the 12v systems come on, they're doing it all at once instead of being staggered which causes a momentary drop in voltage, resulting in false negative readings. This to me is reinforced by random errors I'll get like the collision avoidance (the exact name is escaping me), the ACC system, or sometimes the 4G radio. For a quick workaround, I highly recommend VW just throws out a patch that allows you to cycle all those sensors by holding in the on/off button for about 5 seconds. $10 says that most of these anomalous readings has to do with a momentary 12v voltage drop.