I drive a 2008 Smart For Two Passion. I can't figure out how to lock the car manually. There is a key slot on the outside of the driver door, but when I insert the key and turn it left or right it never locks the car. The passenger side does not have a slot. Also when I'm inside the car I have tried to push the button on the dash to lock it, but that does not work. I have two keys and they are both damaged, so that the electronic push button to lock is not functioning. It is expensive to buy a new key so I thought it would be great if I could just find a way to manually find a way to lock it.