My 2003 honda civic hybrid has a possible fuse problem. When you leave the key in or leave the headlights on you should have a audio signal to let you know that you have left the car with either the lights on or the key in. Both
functions quit working at the same time. I think it's a fuse but can't see any blown fuses. Please help, thanks....

 

just a wild guess but i bet your courtesy lights dont work either check out the drivers door switch bet its either pushed inside the b pillar or its toast

 

you were 100% correct, it was the unit in the door. I have a 100,000 mile waranty so no charge to correct the problem at the dealership. thanks