1. Insert the key into the driver's door lock cylinder and turn it clockwise until it stops. This will lock all of the doors.
2. Pull the door handle as if you were trying to open the door. While holding the door handle, turn the key counterclockwise until it stops. This will deadbolt the lock and prevent the door from being opened from the outside.
3. Repeat steps 1 and 2 for the other doors.
To manually unlock the doors:
1. Insert the key into the driver's door lock cylinder and turn it counterclockwise until it stops. This will unlock all of the doors.
2. Pull the door handle to open the door.
3. Repeat steps 1 and 2 for the other doors.
