In case of an emergency
If the electrical power door lock switch is not operating (e.g., dead car battery) the only way to lock the door(s) is with the mechanical key from the outside key hole.
Doors without an outside key hole can be locked as follows:


If the electrical power to door lock switch is not operating (e.g., dead car battery) and the trunk is closed, you will not be able to open the trunk until power is restored.

The door lock system may not work if the electrical system is compromised. Accordingly, please train children passengers regarding how to open the car door manually before an emergency situation arises. That way, they would be able to open the door manually in the event an emergency situation arises.