The activation of this (amber yellow) "warning" indicates that the hands free system has detected that the battery that permits the active key (1, fig. 62) To communicate and turn the vehicle on is almost discharged.
Note
In this case, ducati recommends replacing the battery as soon as possible as described in the paragraph "replacing the active key battery" (page 88).

Hands free key (hf) not recognised
High engine coolant temperatureRemoval of the cooling system hoses and unions
Loosen the clips (21) that secure the radiator/thermostat sleeve (40) and the
radiator/plug sleeve (24) to the water
radiators.
Loosen clips (25) and (43) that secure the breather pipe (26) to the
radiator/plug sleeve (24) and to the left radiator.
Loosen the clips (34) securi ...
Menu 2 on/off function
This function turns off and back on the menu 2.
If menu 2 is disabled, the functions for average fuel consumption (cons.Avg),
instantaneous fuel consumption (cons.),
Average speed (speed avg), trip time (trip time) and air temperature (air) will
no longer be displayed in the "main
screen". ...
Reassembly of rear shock absorber - rocker arm - linkage assembly
Once the needle roller bearings (9) have been removed from the rocker arm
(18), upon reassembly fit a new needle roller
bearing (9) on drift part no. 88713.1071 And lubricate with recommended grease.
Support the rocker arm and drive the needle roller bearings into the rocker arm
bore until t ...