Honda BIG RED 2009 Owner's Manual page 30

Driver Controls
You should change drive modes only when the vehicle is stopped and
the engine is idling.
Changing drive modes while the vehicle is moving could damage the
drivetrain.
After changing the drive mode, drive several yards, making right and
left turns, and make sure that indicators work properly. If the indicators
do not go out or come on according to the drive mode position, see your
Honda dealer.
Instruments & Controls 21