F.C. Kerbeck Buick GMC

I purchased this truck brand new from FC KERBECK and it had only been maintained there I left a review previously and once again the dealership has failed me I am still in the process with GM and FC KERBECK to rectify this issue and toady after it was at service I drove 15 miles and my check engine light came back after the last review I posted Joe McGrath contacts me on this forum to save face tasking me to contact them about my issues himself and other representatives completely ignore all my calls and messages. At this point i believe my vehicle has been mishandled and retaliated against for me speak my up on the negligence