Yeti – Dynamic service interval

Hello! Is it true that you get the service interval proposed by the Yeti depending on driving (max. 30000 kilometers, max. 2 years) and you have to do this in order not to lose the warranty? I’d rather ask you, because the young boys in the car business seem nice and friendly, but not always omniscient. What does the interval depend on? Hopefully the computer doesn’t just count the number of engine starts (possibly also at the railway barrier)?