This dealer is very shady and should be avoided at all costs. Both the sales and the service side are very poor. Our vehicle was recently taken in for a recall and for a rear door seal to be looked at for repair. Upon receiving the vehicle back, there were numerous dents in the B-pillar and cracked/chipped paint. The dealership, their management, and GM customer service have all been less than helpful. Their suggestion, "use your insurance".
When the vehicle was taken in previously for warranty issues, they replaced a door speaker for a rattle when there was a TSB out for the window switch panel...obviously the door speaker did not fix the issue and the car had to go back in. Another time it went it for a clunking noise under warranty and they supposedly replaced the struts...the clunking noise is there again and the car has less than 30,000 miles.
There are some very questionable practices and a lot of lying happening at this dealership. If you care for your vehicle at all, take it somewhere they will treat it the way you would want it to be treated.