Fix Cruise Control

The Cruise Control on my Ford Fusion has from time to time, stopped working or more accurately, stopped working correctly and consistently. It occurred to me that the inconsistency (rather than complete stoppage) could be due to dust/dirt in the controls that are located on the steering wheel. I used a vacuum cleaner and cleaned the area around the control buttons and the cruise control resumed working correctly. Years later, (recently) during a road trip, the cruise control began to act up again. I repeated the process with the same results. As I have noticed with electronics, etc., dirt and dust can cause malfunctions and cleaning is often all that needs to be done to return normal function.