Hi All
I own 2015 Audi and I had the same issue since yesterday.
I started the car after grocery and after that no matter i try start the car gives me all types of funny messages
Brake service restricted, hill hold assist unavailable, low battery , alternator fault battery is not being charged, tyre pressure system fault , brakes fault safely stop vehicle .
Called the road assistance and they were able to jump start the car
When they ran the auto diagnose it is giving error errorcode:P1800 Generator
Have left the car to garage
will post the update once i hear from them