Ducati MONSTER S4R Owner's Manual page 13

Water temperature
When the water temperature goes below 40 °C (104 °F),
"LO" will be displayed. "HI" will be displayed when the
temperature exceeds 120 °C (248 °F).
Fuel light
"FUEL" will be displayed when the fuel warning light
E
comes on.
Maintenance indicator
After the first 1,000 Km (621 miles) and then every
10,000 Km (6210 miles), "MAInt" will be displayed for 5
seconds when turning the key to ON. It reminds you of
the routine maintenance servicing to be done.
Instrument panel backlighting
Turn the key to ON and press (B) (fig. 6) within 5 seconds
to change instrument panel lighting power.
13