Honda 2010 Insight Owner's Manual page 321

Driving with the Paddle Shifters
Each time you pull either paddle
shifter, the transmission shifts one
speed up or down. If you want to
shift up or down more than two
speeds, pull the paddle shifter twice,
pause, and then pull it again.
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The automatic transmission (CVT)
will not allow you to change shift if:
You downshift before the engine
speed reaches the highest
threshold of the lower speed.
If you try to do this, the shift
indicator will flash the number of
the lower speed several times,
then return to a higher speed.
You upshift before the engine
speed reaches the lowest
threshold of the higher speed.
You press both paddle shifters at
the same time.
You pull one of the two paddle
shifters with another paddle
shifter being pressed.
2010 Insight
The transmission downshifts to first
speed and returns to ordinary
automatic transmission (CVT) when
the vehicle comes to a complete stop
and the vehicle speed is about 6 mph
(10 km/h).
If there is a problem in the
transmission while you are driving
with the paddle shifters, the D
indicator flashes, the D-paddle shift
mode is canceled, and the
transmission returns to ordinary
automatic transmission (CVT).