Honda CIVIC HATCHBACK 2018 Owner's Manual page 158

uuLocking and Unlocking the DoorsuLocking/Unlocking the Doors from the Outside
■
Locking/Unlocking the Doors Using a Key
If the lock or unlock button of the remote transmitter does not work, use the key
instead.
2 Replacing the Button Battery P. 615
Lock
Unlock
156
Fully insert the key and turn it.
1Locking/Unlocking the Doors Using a Key
When you lock the driver's door with a key, all the
other doors and hatch lock at the same time. When
unlocking, the driver's door unlocks first. Turn the
key a second time within a few seconds to unlock the
remaining doors and the hatch.
Models with driver information interface
You can customize the door unlock mode setting.
2 Customized Features P. 133, 348