The activation of this (amber yellow) "warning" indicates that the status of the battery vehicle is low.
It is activated when the battery voltage is . 11.0 Volt.
Note
In this case, ducati recommends charging the battery as soon as possible with the specific device, as it is possible that the vehicle will not start.

Warning indication (alarms/signals)
Traction control (dtc) deactivatedTips for use on the track
We recommend level 8 be used for a couple of full laps (to
allow the tyres to warm up) in order to get used to the
system. Then try levels 7, 6, etc., In succession until you
identify the dtc intervention level that suits you best (always
try each level for at least two laps to allow the tyres t ...
Refitting the cylinder head assemblies
Warning
To prevent oil leaks past the contact area between cylinders and
crankcase, each time the head is removed, cylinder and
piston must be removed as well to clean the mating faces of crankcase and
cylinder and restore the spoiled gaskets and
o-rings and apply again liquid sealant (sect. ...
Tank filler plug
Note
To open or close the tank filler plug using the active
key, set the metal part in the middle position, as shown on
page 86.
Opening
Lift the cover (1, fig. 100) And insert the active or passive key
into the lock. Give the key a 1/4 turn clockwise to unlock.
Lift the plug (2, fig. 101) ...