Originally Posted by SS-screamer
If I get a tune and the only thing I have changed is the AFM shut off, it can void my warranty? If so that would really suck and not seem entirely fair.
From what GM is stating "any" non-stock tune on the ECM voids to power train warranty. You could tune the motor to have a more conservative tune and it would still void the warranty. Right now I don't even look my ECM in the eye... don't want to make GM angry.