I had set the sensitivity of the auto on headlight setting to the least sensitive but the headlights still come on under trees or bridges and then go off so the car in front must think I'm flashing them for some reason. I found a replacement cover for the sensor that is clearer than the OEM one and will let more light in and therefore reduce the auto switching-on (hopefully) to just when it is dark outside.  If it means I have to ocasionally turn the lights on manually (shock, horror!) that