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 recognisedGeneral cleaning
To preserve the finish of metal parts and paintwork, wash
and clean your motorcycle at regular intervals, anyway
according to the road conditions you ride in. Use specific
products, where possible biodegradable. Avoid aggressive
detergents or solvents.
Use only water and neutral soap to clean ...
Refitting the number plate holder
Place the number plate light (5), as indicated, on the number plate holder
plate (8) and tighten the screws (7) to a torque
of 2 nm +/- 10% (sect. 3 - 3, Frame torque settings).
Thread the number plate light wiring (c) into the opening in the number plate
holder plate as shown.
Fit ...
Overhauling the rear wheel
Inspect the condition of the rear wheel.
As the wheel rim has no bearings, it should be supported using the service tool
code 88713.2951.
Note
This service tool can also be used to install the wheel on a balancing
machine.
Overhauling the wheel
Inspect the wheel as described below.
...