The central door unlocking system is activated from the driver's door.
From the outside, you can lock or unlock all the doors at the same time by using either the key in the driver's door or the remote keyless entry transmitter.
From the inside, you can lock or unlock all the doors using the driver's or the front passenger's power door lock switch. You can also lock or unlock all of the doors by using the manual door lock knob on the driver's door.