Central locking has a bit of a learning curve anyway. Used to be, every door was locked individually. With central locking, now your trunk might be set to unloc

Central locking has a bit of a learning curve anyway. Used to be, every door was locked individually. With central locking, now your trunk might be set to unlock with the car, or it might stay locked regardless of the central locking status. Or maybe you hit a button that unlocked (but didn't unlatch!) your trunk, and now it's just waiting for someone to press the button and open it. Those problems aren't made worse by this tech, though; they've been around forever, and it's certainly confusing in a rental car context. (How many drivers have called the rental car agency confused about not being able to get the car out of Park, not realizing they have to depress the brake to shift into gear?)