They had no idea what to do with my Corvette. They run a bunch of tests, charged me. I too it back three times and the last time they admitted they couldn't fix it and escorted me out the back so no other customers would know. GM was of no help either. Sure they take your complaint, but it's like the rabbit complaining to the fox. It was an expensive, horrible experience. I would never go back. It seems oil changes and tires are Anschuetz best bet because their expensive mechanics are incompetent and under trained. Oh yeah, they wouldn't return any of the used parts they claimed needed replacement and the obligatory "something else is wrong with your car" was jammed down my throat. At least two extra repairs that I am not so sure I needed. Ripped off and disgusted.