
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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Devan was so responsive to our questions We will be using him and OFallon GMC AGAIN! him and OFallon GMC AGAIN! More
Daven is very knowledgeable and professional. I can appreciate that in a sales person. Over all, I can say this dealership is run on excellence. I can appreciate that in a sales person. Over all, I can say this dealership is run on excellence. More
Vary helpful, knowlgable and I had a great expirance. Devon is the man!!! Couldn't ask for a better GMC whisperer!! Devon is the man!!! Couldn't ask for a better GMC whisperer!! More
Both Devan and Justin are excellent representatives of your company. We enjoyed every part of our experience and the car, so far, is already being dearly enjoyed. your company. We enjoyed every part of our experience and the car, so far, is already being dearly enjoyed. More
Very good experience in the dealership with Christy she was awesome and helped us with the purchase was awesome and helped us with the purchase More
Everyone was really welcoming at the dealership. You won’t go unnoticed after walking in You won’t go unnoticed after walking in More
Devan is a very attentive car matchmaker. He frequently checked in with me to ensure every detail went smoothly while waiting for my vehicle to arrive. His growth mindset makes him willing to He frequently checked in with me to ensure every detail went smoothly while waiting for my vehicle to arrive. His growth mindset makes him willing to go the extra mile if necessary. You will be happy with his services at GMC. He was great to work with, and I love my vehicle. More
Devan provided an outstanding buying experience. He was engaging and thorough in his review of the 2024 Canyon Denali. Negotiation was direct and felt like we reached an equitable deal for my trad He was engaging and thorough in his review of the 2024 Canyon Denali. Negotiation was direct and felt like we reached an equitable deal for my trade and purchase of the new Canyon. I would highly recommend reaching out to Devan if you are in the market for a new or used GMC or Buick. OFallon GMC also has a great inventory of used vehicles of all types. One month in and I love my 2024 GMC Canyon Denali. Thank you Devan. More
Great experience buying my new hummer. Roger, the salesman was very knowledgeable and pleasant. I did not feel pressured. It was a very good experience. Roger, the salesman was very knowledgeable and pleasant. I did not feel pressured. It was a very good experience. More
I had the pleasure of working with Devan in making a vehicle purchase. I was in an emergency situation and let Devan know what I was looking for. He went over and beyond to get as close to what I asked. vehicle purchase. I was in an emergency situation and let Devan know what I was looking for. He went over and beyond to get as close to what I asked. I was happy and satisfied with my purchase. Devan was very pleasant, patient and knowledgeable. He took his time to make sure I understood everything about the whole process. I highly recommend Devan for anyone looking and willing definitely be choosing him future purchases. More