
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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They do a great job! So helpful and responsive to questions or concerns. Recommend them highly. So helpful and responsive to questions or concerns. Recommend them highly. More
Dependable quality service that everyone looks for when it comes to looking for a car you love. it comes to looking for a car you love. More
This is now the third vehicle that I have Purchased. Not only Walter, but the entire O’Fallon staff has always been outstanding! A+ Not only Walter, but the entire O’Fallon staff has always been outstanding! A+ More
Friendly staff with a no pressure sales approach. We will definitely come back again. Very good experience. We will definitely come back again. Very good experience. More
Brought our GMC truck in for the 45,000 mile maintenance. Joe Peters helped us out in the Service Dept and made the process easy and fast. Thank you for your help and for getting us taken care of. We apprec Joe Peters helped us out in the Service Dept and made the process easy and fast. Thank you for your help and for getting us taken care of. We appreciate it! More
Everything went super smoothly and everyone was extremely helpful. Devan did a fantastic job finding me my new car! helpful. Devan did a fantastic job finding me my new car! More
Easy to work with. Great people. Ownership was very transparent and personal. I would highly recommend this dealership! Great people. Ownership was very transparent and personal. I would highly recommend this dealership! More
Process was fast, no pressure and very friendly service and a pleasure to do business with and a pleasure to do business with More
Beau Campbell and the O’fallon staff was amazing. They help with my purchase of the new Sierra. They are very well knowledgeable with their products. Highly recommended!! They help with my purchase of the new Sierra. They are very well knowledgeable with their products. Highly recommended!! More
Very responsive! Answered questions and helped me find the right truck. Competitive pricing and easy to work with. Answered questions and helped me find the right truck. Competitive pricing and easy to work with. More