A function-monitored guidance system for adjusting at least one system component, the guidance system including a guiding mechanism having at least one adjustment component for guiding adjustment movements of the system component to be adjusted, of which at least one adjustment component includes a sensor device for detecting a load state of the adjustment component, and a monitoring device connected functionally to the adjustment component. The monitoring device provides detection time periods for detecting sensor signals of the at least sensor device, provides a threshold value, with which the number of overshoots thereof by the sensor signals within detection time periods is determined, and determines, from the number of overshoots in each case within the detection time periods, a value for the operating state. A method for monitoring the function of a guidance system for adjusting at least one system component is also disclosed.