FYI they can tell that it has been flashed some service techs just don't give a crap. But if you ran into big problems and they had to have help from a regional master tech they may call you on it.supajut said:Well, you could always just flash the stock tune back in before any warranty work...... That is what I did with my 07 TBSS. I'm sure there is an abundance of Torque Management in the Acadias. As is with any modern GM. I took a peek at the 08 PCM and the transmission properties seem endless.