Honda 2004 Accord Online Reference Owner's Manual page 120

Dual Temperature Control
To set the driver's side temperature
to a different value than the
passenger's, press the DUAL button,
then turn the driver's control dial or
DRIVER'S SIDE PASSENGER'S SIDE
press the or buttons on the
driver's side. To set the passenger's
side to a different value than the
driver's, turn the passenger's control
dial or press the or buttons on
the passenger's side. You can adjust
the passenger's side without
pressing the DUAL button first.
When you set the temperature to its
lower limit or its upper limit, it will be
displayed as '' '' or '' ''.
120
Comfort and Convenience Features