Hi Guy! I presume you can open it from the inside. They took out the lock from the outside as a security feature. But I don't see a lot of these kinds of cars. May I know the brand and model of the car that you are referring to?I carry the remote for the vehicle I drive most, but just a key for the other. It always irks me when I go to unlock the passenger side with my key, but there's no lock on that door!