I just spoke with a dealer technician who told me how to reset the oil change interval without necessarily going to an Alfa dealer.
He said to press the start button twice without turning on the engine, then stomping on the brake pedal three times.
Does this make sense to anyone?
No, none at all.....
From service manual giullia, and I assume stelvio is same:
Oil Change Indicator - Reset
•To reset the oil change indicator system (after performing the scheduled maintenance), refer to the following procedure.
•Without pushing the brake pedal, push the ENGINE START/STOP button and cycle the ignition to ON/RUN position (do not start the engine).
•Fully depress the accelerator pedal, slowly, six times within 10 seconds.
•Without pushing the brake pedal, push the ENGINE START/STOP button once to return the ignition to the OFF/LOCK position.
If the indicator message illuminates when you start the vehicle, the oil change indicator system did not reset. If necessary, repeat this procedure. If the above process fails to complete, use the scan tool to complete the reset process.