This never happened before and I've had the car since 2004:
With the engine running/key in ignition, I open the door, then close it and all of the doors lock. I found this out the hard way when I exited my car with the engine running and was locked out. This never happened before, I'm not touching anything on the door, it just locks itself. Does this happen with any of your cars. It's like the car reprogrammed itself to do this. It's weird because most cars now, are programed to prevent you from locking your keys in the car.

How do I change it so that the doors do not auto lock? Thanks.