Honda 2009 Accord Coupe Owner's Manual page 92

Door Locks
3. push and hold the
On A/T vehicles,
brake pedal, then move the shift
lever out of the Park (P) position.
4. Push and hold the rear of the
master door lock switch on the
driver's door. You will hear a click.
Continue to hold the switch:
Until you hear another click
(after about 5 seconds) to
activate driver's door unlock
feature.
Or, until you hear two more
clicks (after about 10 seconds)
to activate both doors unlock
feature .
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5. Release the switch, and within 5
seconds, turn the ignition switch
to the ACCESSORY (I) position.
move the shift
On A/T vehicles,
lever to the Park (P) position.
6. Turn the ignition switch to the
LOCK (0) position.
Even if your vehicle's battery is
removed or goes dead, the system
keeps the auto door lock/unlock
setting which you selected.