Ewing Buick GMC

Went to this service center 2 times. The first time they misdiagnosed my GMC Terrain and they did not give me a full report on issues. The second time I went here they could not tell me why my Terrain starts up and sounds like a diesel truck. The service advisor was not there to greet me and tell me what was done to my car or what the issues are. He left a handwritten, extensive list of parts amounting to $2200. No explanations were provided. I will never use this dealership/service center again. Frankly, the bad customer service starts in GMC Corporate, however, the service centers provide little to no condfidence or relief.