Rear passenger door lock problem
 

So, problem is that when the car is unlocked the rear passenger door will lock when the handle is pulled from the outside instead of opening. Anyone knows what might be causing this and a possible fix?

Does anyone know where I can find a diagram/instructions for removing the interior door panels and fixing the lock mechanism?

Update. The door handles on both sides will cause the door to lock. The only way out from the inside is to hold the lock nob (that little thing at the bottom of the window) from the inside up and then pull the handle.

Sounds like a computer issue, maybe a setting that was turned on at the dealership. Has it always done this or is it a new issue?