It may indeed be based on the car body computer. My Stelvio is displaying “Thu Jan 27” tonight on its central screen. The date format does not appear to be changeable in the car’s settings. The Change Date settings screen does however use a European format, with adjustment of the day first followed ...

I am using Version 4.8 on a 2018 US version Alfa Romeo 2.0 Liter Stelvio TI. I performed a Service Reset last weekend following an oil change, and wanted to enter 23 January 2022 as the Last Service Date. An onscreen popup message advised me to enter the date as "DDMMYYYY", a reasonable re...