Honda 2014 Civic Coupe Owner's Manual page 108

uuLocking and Unlocking the DoorsuLocking/Unlocking the Doors from the Outside
■
Unlocking the doors
Press the unlock button.
Once:
u Some exterior lights flash twice, and the driver's door unlocks.
Twice:
u The passenger's door unlock.
106
1Using the Remote Transmitter
If the distance at which the remote transmitter works
varies, the battery is probably low.
If the LED does not come on when you press a
button, the battery is dead.
2 Replacing the Button Battery P. 382
You can customize the door unlock mode setting.
2 Customized Features P. 87