Acura 2009 MDX Owner's Manual page 366

Main Menu
Active Damper System
To switch between comfort and sport
mode, press and release the active
damper system button located on the
center console to choose the desired
mode.
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Table Of Contents
When comfort mode is selected, the
green indicator in the button comes
ON, and the message ''COMFORT''
will appear on the multi-information
display for five seconds.
2009 MDX
When sport mode is selected, the
green indicator in the button goes
off, and the message ''SPORT'' will
appear on the multi-information
display for five seconds.