Honda CR-V Owner's Manual page 165

uuLocking and Unlocking the DoorsuLocking/Unlocking the Doors from the Outside
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Unlocking the doors
Press the unlock button.
Once:
u Some exterior lights flash once, and the driver's door unlocks.
Twice:
u The remaining doors and tailgate unlock.
164
1Using the Remote Transmitter
The remote transmitter uses low-power signals, so
the operating range may vary depending on the
surroundings.
The remote transmitter will not work when the key is
in the ignition switch. The remote will not lock the
vehicle when a door or the tailgate is open.
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. 589, 590
You can customize the door unlock mode setting.
2 Customized Features P. 133