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 lockedRemoval of the cylinder/piston assembly
Loosen the clamps (7) and remove the hoses (8) and (9) from the cylinder
barrels (10) and from the alternator-side
crankcase cover.
If damaged, unscrew the unions (6).
Note
The following procedure is described with the engine removed from the
frame and the cylinder head r ...
Parking
Park the stopped motorcycle on the side stand.
Turn the handle completely to the left or right.
If this operation is performed within 60 seconds after the
engine stop, the message "waiting for lock" (fig. 120) Will
appear on the display of the instrument panel for approx.
5 Seco ...
Key-on/key-off using the red key on the handlebar with the passive key
A key-on can be performed by pressing the red button (6) on
the handlebar in the hands free on/off position and in
the presence of the passive key (4, fig. 77).
Note
The passive key (4, fig. 77) Has a range of a few cm,
therefore the key (4, fig. 77) Must be positioned near the
antenna (2). R ...