
O'Fallon Buick GMC
O'Fallon, MO
Hours
Sales/Showroom
Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 6:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 6:00 PM
Friday 9:00 AM - 8:00 PM
Saturday 9:00 AM - 6:00 PM
Sunday Closed
Service
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 6:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 7:00 AM - 1:00 PM
Sunday Closed
Parts
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 6:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 7:00 AM - 1:00 PM
Sunday Closed
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I bought another GMC Yukon XL because of the outstanding customer service I received in the service department. customer service I received in the service department. More
Christy was great to work with. She was responsive and addressed all concerns and questions before, during and after the deal. She was responsive and addressed all concerns and questions before, during and after the deal. More
I had an AMAZING experience and my salesman was the absolute best! Everyone treated me like family. Best car buying experience...Please go and talk yo Paul but if you can't get him...everyone there is absolute best! Everyone treated me like family. Best car buying experience...Please go and talk yo Paul but if you can't get him...everyone there is exceptionally great!!!! More
Thanks for your professionalism. ! I love my envista.! Paul was so helpful and friendly.! Shop there for your car needs! Thanks again.! ! I love my envista.! Paul was so helpful and friendly.! Shop there for your car needs! Thanks again.! More
Roger was our salesman and did a great job. Very professional and patient. He has sold our son and granddaughter vehicles also. Would recommend him and the dealership. Very professional and patient. He has sold our son and granddaughter vehicles also. Would recommend him and the dealership. More
Service was finished faster than expected. ..oil change, tire rotation, software update. Made us happy. ..oil change, tire rotation, software update. Made us happy. More
Mr. Walter Washington made buying a car an easy process! Very knowledgeable!! Very Patient. Thanks Again!! Very knowledgeable!! Very Patient. Thanks Again!! More
Devan Walls is a very polite, considerate and conscientious sales professional. He was very concerned with my specific needs and went the extra mile to accommodate me. I drove two hours to buy conscientious sales professional. He was very concerned with my specific needs and went the extra mile to accommodate me. I drove two hours to buy a 2025 Hummer from him. O’Fallon GMC has a great team from the owner to the finance department. I am very pleased. More