I have had similar experience with Pedal Commander that it wasn't working correctly. I initially had an issue that every 20th or so start up I would get a "Service Traction Control” error. Since I had both the Pedal Commander and a DT Tazer my thoughts were it was one of the two and not playing well together or something. The message would clear after I turned the truck off so it seemed more of an inconvenience than anything. Then one day I had similar issues to what the original poster stated with my truck limping, accelerating on it's own, all the lights on my dash lighting up, etc. I pulled over and decided to remove the Pedal Commander as it was the first thing that came to mind. Viola, no issues. To date, and this was months ago, not one error has appeared. I contacted Pedal Commander Support and basically got a "that sucks" email response, but no resolution or follow-ups. While I did enjoy the adjustments I could make, I have gotten quite used to the stock acceleration. While I have had fleeting thoughts of reinstalling, I am always revisited by the thoughts I had that day my truck became "dangerous" of "I'll never use this thing again if I can pull over safely". Those that Pedal Commander works and works well then awesome, for me it's not worth it.