Hi Localhost, Basically what they did, they've changed the timing required for sensor to switch the headlights on. So if I'm driving fast and under the bridge, the light wont be on as long as I dont stop directly under the bridge for more than 3 sec I think. With adjustabilty they have 5 options which they can choose from, but they cant adjust it to the particular number. So they agreed to replace your headunit with new one is it? Is that gonna be the same generation one or the new one with big clolour screen? Thanks