In my 2000 Chevy Tahoe the door chime continues to go off even when the key isn't in the ignition and the doors are shut! It will shut off when you start the car. It's draining my battery. What is the cause of this?

 

Have you check that the door switch is working properly, by pressing it with your finger? It may be that the door switch is broken and needs to be replaced. In the short term, you could pull the fuse for the door chime or disconnect the battery, so that it does not drain. I would start with the door switch and see if this is the problem.