Driving with my parents today in their 2003 U320, and when the headlights were turned on, a chime came on. While not as loud as the turn signal chime, it's definitely noticeable. Moved switch to off and the chime stopped. It's the same chime that alerts you that the lights are on but the engine isn't running..only difference..the engine was running. Any thoughts?
I have the same issue. The way I fix it was to put a piece of tape over the thing that makes the sound. I think it's a feature to remind you not to leave the lights on when you leave the coach but maybe a bad ground or something stops it from stopping when the engine is on. I'm sure others will chime in and let us know what their experiences are with it.