So this is more of a tuning question I assume than PCMHammer. I pulled a bin with it from an 2002 2500 silverado used the correct xdf to change tire size and flashed it back. It tripped security and would quit immediately. Flashed it back to the stock bin still tripped it. Flashed it a 3rd time turning off vats and it will run but security is displaying on the display, high beam indicator isn't working, and check engine light doesn't illuminate when you just turn the key to the on position.