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 lockedReassembly of the cylinder head
The exhaust side can be identified by the three threaded holes on the flange.
The intake side can be identified by the presence of four threaded holes on
the flange.
All the photos in this chapter refer to a vertical cylinder head.
Valve guide sealing rings
Position the cylinder head o ...
Reassembly of the timing pulleys
Fit the pulley (11) on the flange (24), aligning the timing mark (d) on the
pulley with the timing mark on the (e) on the
flange.
Install the washer (23) up against the pulley, aligning the timing notch (f)
with the timing marks on the pulley and the
flange.
Insert the three screws (22) ...
Useful information for safe riding
Warning
Read this section before riding your motorcycle.
Many accidents are the result of the inexperience of the
rider. Always make sure you have your licence with you; you
need a valid licence that entitles you to ride a motorcycle.
Do not lend your motorcycle to persons who are
inexperie ...