O’Fallon Buick GMC

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O’Fallon Buick GMC If you’re searching for a new Buick or GMC, or a used car, truck or SUV, O’Fallon Buick GMC has it!
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We at O’Fallon Buick GMC are so excited to be joining the O’Fallon community! While our roots are in our hometown of Greenville, SC, with many years of experience and three generations working within our family business, we knew that it was time to expand. In January of 2019, we had an opportunity to travel to O’Fallon, MO and the surrounding areas and instantly knew that we wanted to join the O’Fallon community. As a family business, we are most interested in ensuring that each and every customer has an excellent experience and always feels welcome in our state-of-the-art, family-friendly atmosphere. The satisfaction of our customers and employees always comes first, with value and integrity at the forefront of every interaction. A visit to O’Fallon Buick GMC is not just a trip to the dealership, it’s an experience. Whether you buy with us or not, we want to get to know you, taking our time to discuss your interests and hobbies, lifestyle, budget and aesthetic preferences to make certain that you make the best investment for you and your family. We proudly offer a wide-range of new and pre-owned cars, trucks, SUVs and crossovers. We also have a highly trained auto-repair and service department which will help you to keep your investment performing at its best. O’Fallon Buick GMC is also dedicated to contributing to the O’Fallon community. We know that it is the support of the O’Fallon community that will be the key to our success, and we are committed to finding as many ways as possible to give back. With great excitement, the entire staff at O’Fallon Buick GMC looks forward to serving you!

✅Another Amazing color on the Buick Envision Avenir (Midnight Opal)! Come in for a test drive and see the lineup.✅2150 T...
10/17/2026

✅Another Amazing color on the Buick Envision Avenir (Midnight Opal)! Come in for a test drive and see the lineup.✅

2150 Technology Drive
O’Fallon MO 63368



✅ Thank you and congratulations to Jarrod and Kathryn on this 2019 GMC Sierra 1500 Denali!! Appreciate you guys!! Welcom...
10/17/2026

✅ Thank you and congratulations to Jarrod and Kathryn on this 2019 GMC Sierra 1500 Denali!! Appreciate you guys!! Welcome to the O’Fallon Buick GMC family ✅

Sold by Beau Campbell





🏈 SENIOR SPOTLIGHT: PAYTON PLUMMER Next up in our Senior Spotlight series is #45 Payton Plummer!🐺Payton plays Tight End...
10/14/2026

🏈 SENIOR SPOTLIGHT: PAYTON PLUMMER

Next up in our Senior Spotlight series is #45 Payton Plummer!🐺

Payton plays Tight End and Linebacker for the Timberland Wolves (Class of 2027)! Help us celebrate all of his hard work and dedication both on and off the field! Drop a comment below to send Payton your encouragement for the season! ⬇️💚💙

🤝 A HUGE THANK YOU TO OUR DIAMOND SPONSOR! 💎
This Senior Spotlight is brought to you by Beau Campbell with O’Fallon Buick GMC
Thank you for your incredible support and for strengthening our pack! 🐺💪

🚗 Looking for a new ride or trusted service? Reach out to Beau today!
👤 Beau Campbell – Sales Professional
📍 2150 Technology Drive, O'Fallon, MO 63368
📞 636-357-3982
✉️ [email protected]

✅We love referrals. Congratulations to Bree on her Honda. Thank you and drive safe young lady. Thank you for your busine...
10/13/2026

✅We love referrals. Congratulations to Bree on her Honda. Thank you and drive safe young lady. Thank you for your business and welcome to the O’Fallon Buick Family, enjoy your new ride.✅

Sold by Christy Raft-Thornton





✅Amazing new color for 2027! All new Buick Enclave Avenir in Emerald Green Metallic. Come in and see for yourself the lu...
10/13/2026

✅Amazing new color for 2027! All new Buick Enclave Avenir in Emerald Green Metallic. Come in and see for yourself the luxury of the Buick lineup.✅

✅Congratulations Mike on your new low mile 2013 Cummings diesel Ram 2500, what a find. We have the trucks! Thank you ag...
10/13/2026

✅Congratulations Mike on your new low mile 2013 Cummings diesel Ram 2500, what a find. We have the trucks! Thank you again for your business and welcome to the O’Fallon Buick GMC family✅

Sold by Beau Campbell



✅Congratulations Remy on your first new car purchase on your own. Work hard and play hard. We appreciate your business a...
10/12/2026

✅Congratulations Remy on your first new car purchase on your own. Work hard and play hard. We appreciate your business and welcome to the O’Fallon Buick, GMC family.✅



✅The customers words say enough, welcome to the O’Fallon Buick GMC family! Sold by Paul Mansker
10/05/2026

✅The customers words say enough, welcome to the O’Fallon Buick GMC family!

Sold by Paul Mansker



✅  Congratulations Bryan on your new Terrain, best deal in town. We appreciate your business and welcome to the O’Fall...
10/05/2026

✅  Congratulations Bryan on your new Terrain, best deal in town. We appreciate your business and welcome to the O’Fallon Buick, GMC family. ✅

Sold by Christy Raft-Thornton



10/05/2026

💗 Don’t miss out on this one-of-a-kind custom 2026 Buick Envista Sport Touring! 💗

Created in honor of Breast Cancer Awareness Month, this special custom Envista is more than just a head-turner—it’s a tribute to strength, courage, and the fight against breast cancer. 🎀

✨ Custom style
🎀 Meaningful design
🚘 2026 Buick Envista Sport Touring

Come check it out before it’s gone! This is one you’ll want to see in person. 💗

Address

2150 Technology Drive
O'Fallon, MO
63368

Opening Hours

Monday 7am - 8pm
Tuesday 7am - 6pm
Wednesday 7am - 8pm
Thursday 7am - 6pm
Friday 7am - 8pm
Saturday 7am - 6pm

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