I think this place is a joke! They ran a diagnostic for a check engine light, and they ""couldn't figure out what it is"". Really, aren't you supposed to be able to fix cars? So they recommend we take it to the dealer but then they cleared the check engine light and all the history so they dealer couldn't look at the codes or what was wrong.... on top of it, we asked our money back for the diagnostic and a Manager to call us, nothing. We could never get a phone call back. Cornerstone is a joke.
more