I have a 2003 Tahoe and I am unable to turn off the headlights at night when the vehicle is parked. I have had people tell me to hit the dome over-ride button three times in a row and it will shut them off, however it does not. Someone also told me to set the emergency brake. I have done that as well and it still does not turn them off at night. I called the local dealer and they do not have any other information. Does anyone have any other suggestions?