Did you reset Trip A, Trip B, etc. and fuel efficiency figures?
Usually, as I experienced in my last ride Passo, first point falls when you travel for ~100 -120 Kms (depending) or may be even some more Kms, and fuel has been filled up to fuel tank lid / cap level, i.e. fuel tank is almost 100% full.
Please check these too, and I think, no need to worry.
"Remaining distance is 365"
Pardon. I do not get it. What does it mean?