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 ¼ 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) deactivatedEngine torque settings
*Dynamic safety-critical point; tightening torque must be within nm +/-5%.
Note
For product specifications and symbols, refer to paragraph "product
specifications" (sect. 1 - 2). ...
Removal of the gearbox assembly
Withdraw the selector fork shafts (30).
Move the forks (28) and (29) to disengage them from the slots in the selector
drum (14).
Withdraw the selector drum (16) taking care not to lose shims (31) and (27)
mounted on the shaft. Note that the
positions of the shims must not be inverte ...
Removal of the tool tray
To remove the tool tray unit from the lateral footrests, loosen the screws
(40) and remove the splashguard (20).
Undo the screws (15) and remove the cover (16).
Move the wiring branch from the seat (s) on the tool tray.
Loosen the screws (24) to remove the tool tray unit (23) from ...