Door locks lock by themselves. I am always locking keys in car. I had too much to carry so made second trip?to car & the doors were locked without running, keys in ignition.
Take keys with you or lower drivers window.
Is it possible you are inadvertently hitting the lock button when exiting the vehicle?
Testing will consist of lowering window and closing doors with key in ignition - do doors lock then ?
The ‘preliminary testing’ suggested above is what a repair facility will perform to determine if problem exists within the vehicles electronics or it is an operators error.
Testing may take a couple of days - be prepared to leave vehicle at repair facility long enough for testing to be completed / confirmed.
Good luck!
RepairPal Certified shops can diagnose and repair your 2000 Dodge Neon. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
The ‘preliminary testing’ suggested above is what a repair facility will perform to determine if problem exists within the vehicles electronics or it is an operators error. Testing may take a couple of days - be prepared to leave vehicle at repair facility long enough for testing to be completed / confirmed. Good luck!