Hello, I did the service and oil reset. everything looks fine. The only thing that isn't resetted, is the service info in my navigation system at the menu: "car info", "maintenance info", service date in: --- km (not the 35.000 km where I resetted it to) :( Is this normal? or can...

Hello,
I did the service and oil reset. everything looks fine.
The only thing that isn't resetted, is the service info in my navigation system at car info.
Is this normal? or can I still do this?
My car is an Alfa Romeo 159 with standard navigation.
greetings