door open light won't go off. Its showing drivers side door is open, so interior lights have to be turned off and alarm can't be set. Any options/opinions? Already changed the sensor myself. The dealer ran a diagnostic and said it was the switch but that didn't fix it so they refunded my money.

 

can you manually push the door switch (the plunger) to see if that turns it off? It might be because the door needs adjustment when closed to depress the plunger properly. I had this issue in the past and the sensor wasn't broken, but the door needed to be adjusted to be properly depressed.