Honda 2016 HR-V Owner's Manual page 101

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 twice, and the driver's door unlocks.
Twice:
u The remaining doors and the tailgate unlock.
100
1Using the Remote Transmitter
If the distance at which the remote transmitter works
varies, the battery is probably low. Replace the
button battery as soon as possible.
If the LED does not come on when you press a
button, the battery is dead.
2 Replacing the Button Battery P. 422