I have experienced this as well, not sure if I like it that much. But I heard some stories about Skoda interfering with what they call Predictive Adaptive Cruise Control (pACC). That they are driving 100km/h and that the car sees a 30km/h sign somewhere (on another road) and that it suddenly drops in speed to 30km/h. As far as I know the Honda Jazz does not have this. We have ACC but not pACC.