Acura 2009 TSX Owner's Manual page 178

Climate Control System
To set the driver's side temperature
to a different value than the
passenger's, press the DUAL button,
then push the switch up or down on
Driver's Side Passenger's Side
the driver's side. To set the
passenger's side to a different value
than the driver's, push the switch up
or down 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 or upper limit, it is displayed as
or .
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