The photo shows the On/Off switch with the button depressed. Notice that an LED indicates when the Cruise Control is "on." See the yellow text box. It outlines the crack between the switch and the surrounding body of the switch. This is where some people wedge a coin or a folded piece of paper to hold the switch button in the "in" or "on" position. While this works, it is a cumbersome and unsafe distraction when driving in traffic at highway speeds. But, the other normal functions of the Cruise Control do still work. So, the Cancel, Set, and Resume functions could be used to operate the Cruise Control while actually driving.