I experienced an unusuall occurrence today while using cruise control. I entered an area where the speed limit increased from 45 to 55mph. Instead of jogging the CC set button 10 times, I held the button down until I was at 55 and released it. The truck did not settle in at set speed, the truck kept accelerating until I touched the brake at 85mph. I thought it was something I did at first, so I slowed to 45 and repeated. Sure enough, it took off again and would not stop accelerating even when I pressed the -/set button. Anyone else experienced this?