Monken Buick GMC of Mt Vernon IL



Monken Buick GMC of Mt Vernon is home to professional service teams that can take care of all the routine maintenance for your Buick or GMC. If you are fortunate enough to own a Buick or GMC model, we would like to service your product so you can get the most performance out of your vehicle.  Our service and parts department is open six days a week from 8:00 AM to 6:00 PM.  Schedule your appointment, today!


We are located centrally between St. Louis and Louisville. Our goal is very simple: Listen to your needs and making the ownership experience a lasting one so that you come back to us again.

You deserve the best and want the most out of your vehicles and that’s why we are one of the most trusted dealers around. Our teams comprise of passionate employees who go the extra mile. We take the time to listen to our customers to be certain we’re able to meet the needs with no remorse, providing the highest quality customer experience and most dependable service available anywhere.  Our commitment to customers is to leave a lasting impression.  Your journey only starts with the car purchase we are here to exceed your expectations when it comes to vehicle maintenance throughout the ownership of that vehicle.

When you step into our showroom, whether to make a purchase or to have our service department look at your vehicle, you will feel right at home with our friendly staff and amenities. Rest assured our team of professionals will leave a lasting impression and enjoyable experience.  When you do business with the Monken Buick GMC, life is all good.


At Monken Buick GMC you don’t just get a great car you are treated to great service with tons of amenities. Monken can offer you Shuttle Services, Loaner Vehicles, Night Drop, a comfortable Waiting Lounge with a Kid’s area. Coffee and Snacks to enjoy or use our Free Wi-Fi.

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