I really appreciated Sean Eddleman taking the time to work with me on my recently purchased certified preowned Denali. I explained my issue and we arranged a visit for the technician to do a test drive. Upon arrival at the Hardin GMC I met with Sean and technician Dan Gunter, I explained the issue. He know exactly the issue with my trouble. Explained the fix. I felt so confident with Dan's explanation i skipped the test drive. When i got the vehicle back the problem was solved. I really appreciate the excellent service and glad there are super knowledgeable senior technicians like Dan !