Nevermind all that nonsense just simply turn off the traction control and it'll come to life.

 

I think you are 4 years late.

 

I have a question. My 08 4.8 1500 z71 feels like it's starting off in 3rd gear. If I am at a light and floor it barely moves? I have K&N cold air intake 3 inch magna flow muffler and a bully dog tuner. I have taken to the dealership and they say there is nothing wrong with it. Is this common or what is the problem?