The activation of this (amber yellow) "warning" indicates that dtc (ducati traction control) has been turned off.
Note
In this case, ducati recommends being very careful when riding as the vehicle behaviour will be different in comparison to when operating with the traction control activated.

Low battery level
Hands free key (hf) not recognisedRecovery in the event of flat active key battery
If the active key battery is running low or is flat, the hands free system
shows the relative icon on the dashboard.
The following image shows the icon appearing on the circular area of the
dashboard: this indicates that the active key
battery is flat.
For the replacement procedure of t ...
Removal-refitting of the engine assembly
Screw
Special screw
Nut
Screw
Swingarm pivot
Special screw
Washer
Spare parts catalogue
Diavel abs frame
Diavel abs swingarm
Diavel carbon
abs
frame
Diavel carbon
abs
swingarm
Important
Bold reference numbers in this section identify parts not shown in the
figures a ...
Removing the valves
Raise the rocker arm (3) and remove the opening shim (5) from the valves with
a pair of pliers.
Push down the closing rocker arms (16) and (4) and the closing shim (7).
Remove the half rings (6) from the valves with a magnetic screwdriver. Extract
the closing shims (7) from the valve ...