The activation of this (amber yellow) "warning" indicates that the engine coolant temperature is high.
It is activated when the temperature reaches 121C (250f).
Note
In this case, ducati recommends stopping and shutting off the engine immediately; make sure that the fans are working.

Low hands free key (hf) battery level
Steering release error - steering still lockedWarning indication (alarms/signals)
The dashboard activates in real-time some warnings / malfunction that are not
dangerous for the correct operation of the
vehicle.
At key-on (at the end of the check) one or more "warnings" are displayed if they
are active.
When a "warning" is triggered, the indication (amber yellow) remai ...
Throttle twistgrip
Upper clamp
Counterweight
Screw
Handlebar
Grips
Throttle twistgrip
Bush
Screw
Bush
Throttle cables
Spare parts catalogue
Diavel abs handlebar and controls
Diavel carbon
abs
handlebar and controls
Important
Bold reference numbers in this section identify parts not sh ...
Refitting the starter motor gear
Position the washer (20) and the gear (19) in the pin (21) and take the pin
into contact with the crankcase half.
...