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 temperatureAlternator
It is equipped with a 12 v, 430 w generator, consisting of a fixed element
(stator, a) located on the generator cover and
of a movable element (rotor, b) fixed to the crankshaft.
Note
To check the battery charging system for faults, use the dds diagnosis
instrument and follow the instruct ...
Setting menu
This menu is used to enable/disable and set some
motorcycle functions.
To access the "setting menu" press the button (2, fig. 14)
? for 3 seconds.
Note
When within this menu no other function can be
displayed.
Important
For safety reasons, the setting menu can only be
ac ...
Units of measurement modification function
This function allows you to change the units of measurement of the displayed
values.
To access the function it is necessary to view the ""setting" menu", using
buttons (1) "s" or (2) "t" to select the "set
units" function and press the reset button (3) to enter the following page.
Use but ...