Never noticed this before a couple of weeks ago, but I now get false positive sensor readings on my driver side to "red" arcs (ie. something supposedly very close) when there is nothing there. Clearly, this is fine when AP is not activated, but when it is it causes the car to drift all the way to the right and sometimes crosses the right lane marking. The car is not dirty. I have wiped the sensor areas down and it still occurs. Anyone experience this? Ack, wrong forum - can someone move to Driving Dynamics?