I made an "appointment" to receive an oil change and to obtain a minor warranty repair (wind noise on the driver side window). I received no less than 4 phone calls and emails reminding me of the appointment. However, the dealership had the vehicle for 5 days before the repairs were attempted, but not completed. I do not believe this dealership understands the definition of an appointment and the purpose behind it. I'm very thankful they do not schedule my dental appointments.
Most importantly, they left the vehicle outside for the entire weekend during a storm without informing me. I live only 6 miles from the dealership and would have gladly picked it up and returned it on Monday for the eventual attempt at repairs, had I known it was to be left outside.
At the risk of sounding whiny, the vehicle has never been left outside for any night, let alone during a weekend storm. The condition upon receiving the vehicle back was horrible.
I will not be returning to this dealership ever. I currently own 4 GM vehicles, with the most recent purchase made at this dealership. Good luck to those who try.