Ducati Monster 1200S Owner's Manual page 215

Turn indicators
Turn indicators are automatically reset by the
instrument panel.
After activating one of the two turn indicators, user
can reset it using the button (4) on the left switch.
If the turn indicator is not reset manually, the
instrument panel will automatically switch it off after
the motorcycle has traveled 0.3 miles (500 m) from
when the turn indicator was activated. The counter
for the distance traveled for automatic deactivation is
4
only activated at speeds below 50 mph (80 km/h).
If the calculation of the distance for automatic
Fig 136
deactivation is activated and then the motorcycle
exceeds a speed of 50 mph (80 km/h), the calculation
is interrupted and will restart when the speed returns
below the indicated threshold.
214