Honda 2016 Accord Owner's Manual page 123

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 unlock.
122
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.
You can customize the door unlock mode setting.
I n f o r ma t i o n P r o v i d e d b y :
2 Replacing the Button Battery P. 549
2 Customized Features P. 103, 298, 316