This function indicates if "lap" function (lap number) is active.
When "lap" is not lit up, this means that the function has been switched off.
The "lap" function can be activated using the "lap" function of the setting menu.

Riding mode set indication
Riding style function (riding style change)Flexible wiring/hoses positioning
The routing of the abs wiring has been optimised to ensure the minimum
obstruction.
Each section is designed to prevent interference with parts that might damage
wires or cause operating failures when
riding.
Table a
Table b
Table c
...
Traction control (dtc) deactivated
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
...
Reassembly of the tool tray
Place the tool tray unit (23) on the lateral brackets (2) and (3) by
tightening the screws (24) to 14 nm +/- 5% (sect. 3-3,
Frame torque settings).
If the handle guide (32) has been previously removed, position it on the tray
(23) and tighten the screws (34) to 20 nm
+/- 5% (sect. 3-3, Fram ...