" Locking with key " from the owners manual :-
1) Vehicles without double locking.
Locking (or unlocking) the driver's door will lock (or unlock) all the other doors simultaneously.
2) Vehicles with double locking.
When locking or unlocking the drivers door, only the drivers door is locked or unlocked.
In case of locking or unlocking other doors, please operate with the power door lock switch.
Be ready for the alarm to go off if you're experimenting
TG