This function allows setting the "background" of the dashboard on tank.
To access the function it is necessary to view the ""setting" menu", using buttons (1) "s" or (2) "t" select the "back light" function and press the reset button (3) to enter the following page.
Use button (1) "s" or (2) "t" to select the "dashboard 1" function and confirm by pressing the reset button (3).
Once you enter the "dashboard 1" function, setting is highlighted on the display (day, night or auto in green); use button (1) "s" or (2) "t" to shift the arrow to the left onto the new setting and confirm by pressing the reset button (3).
To exit the setting function, press the reset button (3) when "exit" is highlighted.
"Day" setting: dashboard background becomes permanently "white" to improve readout view - recommended with bright exterior lighting.
"Night" setting: dashboard background becomes permanently "black" for a more dimmed visibility - recommended with poor exterior lighting and/or dark.
"Auto" setting: dashboard background is set automatically according to exterior lighting conditions (detected by a sensor) and will be "black" for a more dimmed visibility with poor exterior lighting and "white" for an improved readout view with bright exterior lighting.
Note
In the event of an interruption of the power supply from the battery, when power is restored at the next key-on, the backlighting will always be set by default to "auto" mode.

Menu 2 on/off function
Backlighting setting function for the dashboard on handlebar - dashboard 2Operations to be carried out by the dealer
List of operations to be performed every 12000 km / year (first
limit reached)
Reading of the error memory with dds on the engine control units,
vehicle and abs
Change the engine oil
Change the engine oil filter
Check and/or adjust valve clearance ( ...
Refitting the filler cap
Position seal (18) in tank cap (10) as shown and reassemble following the
removal procedure in the reverse sequence.
In particular tighten the screws (17) to a torque of 3 nm +/- 10% (sect. 3 - 3,
Frame torque settings).
...
Key-on/key-off using the pin code (immobilizer release)
Key-on can be performed by pressing the button (7) on the
hands free lock (1, fig. 77) Without the presence of the keys
(3, fig. 77) And (4, fig. 77) And entering the pin code on the
dashboard.
Key-off can be performed by pressing the button (6) on the
handlebar / hands free key (7) / engine ...