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Used
GMC cars
for sale
near
O Fallon, MO
under $40,000
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
1999 GMC Yukon SLT
Vehicle information
Features
Reviews
Very casual and friendly.
Very casual and friendly. The salesman had all the history of the Escape, which put me at ease in finding him trustworty.
1999 GMC YUKON.
THE 1999 GMC YUKON IS A TRUCK NOT A CAR. WE HAVE A 1999. SHE RIDES SMOOTH LIKE A LUXURY CAR. SHE'S A 4X4, WE HAVE HAULED THINGS IN SIDE HER AND PULLED A RV TRAILER WITH HER. A SMOOTH RIDE ALL THE WAY.






Used
2025 GMC Acadia FWD Elevation
Vehicle information
Features
Reviews
Joe is great as well as all the people I interacted with
Joe is great as well as all the people I interacted with at the dealership. They all were very friendly and professional. I appreciate Joe getting me the best deal possible with this being a second car loan.
I saw this car driving by the dealership and
I saw this car driving by the dealership and automatically was drawn to it because of its color. GMC calls it brown but one print out called it crystal metallic purple. It changes colors depending on the weather. I love the handling, the dash and all the bells and whistles! My grandchildren love how much room that it has!
Vehicle information
Features
Reviews
Great experience from start to finish.
Great experience from start to finish. From the salesperson, Ryan, to the finance manager, Curtis, we were listened to and treated graciously and respectfully. We would highly recommend Lou Fusz when looking to buy a new or used vehicle. We love our new car and have peace of mind that our purchase will be protected by their excellent Service Department in the future!
I always bought the GMC Acadia (4 times) but decided to
I always bought the GMC Acadia (4 times) but decided to try the terrain. I absolutely love it and it's a great car for zipping around in town. I would take it for a weekend trip but not on a long trip as it doesn't have a lot of cab room, but for two people it is fine
Vehicle information
Features
Reviews
Used car
Dave took great care of everything! Thorough and courteous throughout the whole experience. Made it a highly enjoyable and easygoing experience! Highly recommend! Thanks again!
An AWESOME Vehicle!
This wasn't the vehicle I'd gone to the lot to see... But it was parked 2 vehicles down, and the price was $3000 cheaper!! It even has more bells and whistles than the Toyota I'd initially planned on getting. Awesomeness!!
Used
2024 GMC Terrain SLT
Vehicle information
Features
Reviews
This review is for Jimmy, one of the sales associates
This review is for Jimmy, one of the sales associates here. I spoke with him about my options for trading my vehicle. He was very knowledgeable and helpful. Now that I know my options, I’m looking forward to working with him in the future!
One of the most attractive looking t cars GMC has ever
One of the most attractive looking t cars GMC has ever designed. Looks just like a Lexus. Extremely roomy. Love every aspect of my Terrain.
Vehicle information
Features
Reviews
Great Service
Great Place. Nicholas had such good customer service, Thank you. These guys know what they are doing in a friendly relaxed way. Not only the service is expert and fast, price is fair. They take time to educate you. A Friend recommended them to me, and I am passing this along. Thanks
I brought my 2011 GMC TERRAIN 2 MONTHS AGO WITH
I brought my 2011 GMC TERRAIN 2 MONTHS AGO WITH ONLY 94000 MILES ON IT THIS IS THE BEST INVESTMENT FOR A USED CAR I EVER MADE

Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Ike was very fun, friendly and professional.
Ike was very fun, friendly and professional. He made car buying experience easy and for a more personal touch he detailed my car personally
Great truck!
I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!

Used
2017 GMC Yukon XL Denali
Vehicle information
Features
Reviews
Excellent service and very respectful in reference
Excellent service and very respectful in reference choices and pricing. Adnan, salesperson, was very helpful and not pushy. Price for the EV Blazer was good. We looked both in Missouri and Florida. Butler won out
Fast & Awesome
great car has everything and then some. lots of seats and 2nd row heated is cool. it could use a little more under storage in the rear compartment and a cover






Vehicle information
Features
Reviews
I sold my SUV to BBC and they were very helpful with
I sold my SUV to BBC and they were very helpful with handling documents and explaining steps ensuring a smooth transaction! Will call again for future car needs.
Great family car!
If you like big vehicles and have a family, it's the perfect car. Lot's of road trips watching movies in the back. The Denali package makes it stylish and comfortable.






Used
2017 GMC Terrain SLE-2
Vehicle information
Features
Reviews
Go see Billy Willis!
We had the pleasure of working with Billy Willis. He was so knowledgeable and placed zero pressure on us. It was by far the easiest experience we’ve had. We couldn’t be happier with our 2022 Tucson or with the service we received from Billy!
Nice exterior color and appreciate the tinted wind
I just bought car yesterday,so far still very comfortable, lots of headroom and legroom. Interior very clean and exterior color is well liked. Should get good gas mileage with 4 cylinder
Used
2022 GMC Sierra 1500 Limited SLT
Vehicle information
Features
Reviews
Simple, helpful.
Simple, helpful. Scott was very professional, polite, and overall pleasant to work with. I recommend him highly
This truck is great if your not trying to haul 10k lbs.
This truck is great if your not trying to haul 10k lbs. For every day use it's great on gas and I fit everything I need in the bed.






Used
2017 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Thank you Aaron Voege
My salesman Aaron Voege was excellent,courteous and I will recommend him to all my friends.. He made the transition from my Altima to my new Rogue perfect. Thank you Aaron..
Good afternoon everyone, yes, I’m a lady and I’m an owner
Good afternoon everyone, yes, I’m a lady and I’m an owner of a 2017 GMC Sierra 1500 Denali, it has a V8 motor fully loaded sunroof & also it has heated seats & steering wheel for the cold winter months & in those hot summer months you have A/C seats nothing better than that am I correct? It’s been times like that wouldnt trade for the world!! So for all you ladies who think BIG TRUCKS are just for men, go out there & buy one have them put on some electronic slide in/out rails & go out & show the shows the boss!! lol 😄 I’m out looking for a new one now either a 2500/3500 pearl white
Used
2021 GMC Acadia AWD AT4
Vehicle information
Features
Reviews
Ron, and the entire staff are first class!
Ron, and the entire staff are first class! My wife and I flew down from Minneapolis. Ron picked us up at the airport. We took the vehicle for ride & within an hour and a half, we were on our way home. The smoothest transaction I've ever had buying a vehicle.
Stylish and comfortable.
Just purchased this vehicle a little over a month ago. Love the ride, the comfort of the seats, and, the body style. My only complaint is that it drifts to the right and the steering wheel is several degrees to the left after two trips to the dealer where we purchased it. I will probably have to pay to take it to a known, excellent alignment shop.






Used
2020 GMC Terrain SLE
Vehicle information
Features
Reviews
Tracy was really sweet and accommodating and really made
Tracy was really sweet and accommodating and really made sure I left with my car at a decent time
I have had this car 5 years 90000 km.
I have had this car 5 years 90000 km. No problems so far, it has been exceptionally good. The only money I have spent is gas and oil changes. I. Would buy another one

Used
2019 GMC Acadia SLT-1
Vehicle information
Features
Reviews
Everyone was nice and the place was extremely busy.
Everyone was nice and the place was extremely busy. We worked with Nick who was working with 2 sets of customers at the same time, he did a pretty good job of handling both. We test drove a truck and tried to work a deal, but it just did not get down into our price range.
Its a decent car, but on a car frame.
Its a decent car, but on a car frame. I had a GMC Envoy a truck frame SUV and it was so much nicer to sit higher than the sedans and baby SUVs on the road. Doe have nice accelerations and mileage tho.

Used
2019 GMC Acadia SLT-1
Vehicle information
Features
Reviews
A very special Thank You to both Chad Sigsworth (Sales
A very special Thank You to both Chad Sigsworth (Sales Associate) and Patrick Amann (Service Associate) who both assisted in the replacement of my engine. Both gentlemen were dedicated from the begining to the end of this replacement. They both stayed right on top of things and kept me well informed until the job was completed. I will always purchase any future vehicles through Dave Sinclair due to their honesty, dedication, and treatment of their customers. They have one of the best staff I ever had the pleasure of working with. Keep up the great work. Sandra Hearn
Love this Denali 2019 Acadia.
Love this Denali 2019 Acadia. Bought in 2018 with a large Houston Dealer Discount (22%). Replaced 1 Battery under Factory warranty and the common Park/Assist malfunction repaired under 3rd Party Warranty ($1200+) in 2023. Smooth ride, V-6 @ 24-26 mpg highway/16-17 mpg town driving. Thermostat only other repair/replacement.
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Used
2018 GMC Sierra 1500 SLT
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Used
2021 GMC Sierra 1500 SLT
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Used
2022 GMC Sierra 1500 AT4
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Used
2021 GMC Yukon SLT
Vehicle information
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Used
2021 GMC Sierra 1500 AT4
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Used
2011 GMC Yukon SLT
Vehicle information
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Used
2020 GMC Yukon Denali
Vehicle information
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Used
2019 GMC Sierra 1500 SLT
Vehicle information
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Used
2017 GMC Sierra 1500 SLT
Vehicle information
Features
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used GMC by price
GMC under $40,000 by city
-
GMC under $40,000 in O'Fallon, MO
83 Great Deals out of 280 listings starting at $4,900
-
GMC under $40,000 in O Fallon, MO
83 Great Deals out of 280 listings starting at $4,900
-
GMC under $40,000 in Dardenne Prairie, MO
83 Great Deals out of 280 listings starting at $4,900
-
GMC under $40,000 in Lake St. Louis, MO
73 Great Deals out of 232 listings starting at $4,900
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GMC under $40,000 in Lake Saint Louis, MO
73 Great Deals out of 232 listings starting at $4,900
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GMC under $40,000 in Cottleville, MO
89 Great Deals out of 303 listings starting at $4,900
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GMC under $40,000 in St. Paul, MO
64 Great Deals out of 209 listings starting at $4,900
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GMC under $40,000 in Saint Paul, MO
64 Great Deals out of 209 listings starting at $4,900
-
GMC under $40,000 in St. Peters, MO
100 Great Deals out of 335 listings starting at $4,900
-
GMC under $40,000 in Saint Peters, MO
100 Great Deals out of 335 listings starting at $4,900
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GMC under $40,000 in Weldon Spring, MO
92 Great Deals out of 312 listings starting at $4,900
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GMC under $40,000 in Wentzville, MO
49 Great Deals out of 165 listings starting at $4,900
GMC under $40,000 in O Fallon, MO by model
-
GMC Acadia under $40,000 in O Fallon, MO
22 Great Deals out of 82 listings starting at $6,600
-
GMC Terrain under $40,000 in O Fallon, MO
32 Great Deals out of 79 listings starting at $4,900
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GMC Sierra 1500 under $40,000 in O Fallon, MO
12 Great Deals out of 69 listings starting at $10,495
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.