A method and a system for in-vehicle function control are disclosed herein. In an example of the method, an in-vehicle controller recognizes that a predetermined driver is operating a vehicle. The in-vehicle controller receives data from at least one vehicle system, the data being indicative of a driving behavior of the predetermined driver. The in-vehicle controller compares the data with any of i) positive metrics or ii) negative metrics to categorize the driving behavior. In response to the categorized driving behavior, a signal is provided. In response to the signal, access is granted to any of (i) an infotainment function or (ii) an increased number or range associated with an infotainment function, if the categorized driving behavior is associated with a predetermined number of the positive metrics.