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*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.
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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
2023 GMC Acadia FWD SLT
Vehicle information
Features
Reviews
Pepper was very helpful and professional.
Pepper was very helpful and professional. I would recommend this dealership because of him. Very pleased.
Perfect for us!
As we age, our reaction time may become slower. This vehicle is loaded with features that make me a safer driver. It connects wirelessly with my iPhone for hands-free Apple CarPlay. Love that! And the Acadia is a dream to drive. It’s the perfect size for me and my family






Used
2023 GMC Acadia AWD SLT
Vehicle information
Features
Reviews
Excellent service and professional sales.
Excellent service and professional sales. Quality vehicles at competitive prices. Sales staff was very helpful, and the sales manager made it a point to introduce himself. I'll be back!
Great road trip car
Got it for the ride ,comfort,great gas mileage on trips,can do a 750 mile trip and not be warn out from the ride.Can carry a lot of stuff .All the different options are great






Used
2017 GMC Acadia Denali
Vehicle information
Features
Reviews
Good communications and responsive
When buying our new vehicle from Frank Leta Acura, Samir Hamzic helped us to identify a vehicle that met our needs and was within our budget. Samir was very responsive to our emails and he even provided personalized videos of each of the vehicles in which we expressed interest.
Good car only some issues
Have had lots of problems with the wheel sensors. New tires and new sensors and still have the same issue. Shows tire low and it is not. Just car not even two years the air conditioning would not blow out cold air. The compressor in the back went out, need to be replaced. Side car waring lights come on sometimes even though no car anywhere near me. Fold in mirrors are a joke the driver side comes in and out, however the passenger side sticks. Dealer said yeah that happens. This car is garage kept!






Used
2023 GMC Acadia FWD SLE
Vehicle information
Features
Reviews
Quick turnaround and comfortable lounge to wait in.
Quick turnaround and comfortable lounge to wait in. You were able to do my oil change and repair my tire (an extra service that day) under the time that the service rep quoted me.
great vehicle
traded in my 2013 buick enclave for this 2023 gmc acadia. i think the ride is a little better , fuel mileage is better over all comfort is great. Ed at Patriot Buick GMC was great in explaining all its features.






Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
BRANDON WAS AWESOME!
Brandon did a great job! He was very helpful with getting me into my new Mustang! Thanks so much Brandon! I live my new car! 😄
2019 Sierra SLT X31
I purchased a new 2019 SLT with the X1 package. It has the Red Quartz Tintcoat paint. I usually never leave reviews, but honestly this is the most comfortable, nicest loking truck I've owned , and I've ownwd alot of them. The only issues I've had was the brake software was flawed, took it to the dealer on recall and they installed a new software patch, Other then that I love the styling, performance and the interior is very nice. No regrets






Used
2019 GMC Yukon XL Denali
Vehicle information
Features
Reviews
Amazing technician
The technician was amazing gave me updates along the way I will definitely come back because of him
Bought 7 over the past 21 years!
On my 7th one. That should say it all. Quality crafted, full of great features, super smooth ride and plenty of room for up to 8 people plus a ton of gear.






Used
2015 GMC Yukon SLT
Vehicle information
Features
Reviews
Great atmosphere and Mike did an awesome job helping with
Great atmosphere and Mike did an awesome job helping with the purchase of my vehicle, I would recommend Jim Butler of Fenton ,MO to anyone looking to purchase a vehicle, thanks Mike
Great family suv.
Just trade in my 2015 GMC Denali with 140000 miles on it and still holding strong at trade in best SUV I ever had upgraded to the new 2021 Denali and boy do I love this SUV from comfort to outside design just an amazing new well designed SUV.






Used
2024 GMC Terrain SLE
Vehicle information
Features
Reviews
Love this dealership!
Love this dealership! The new location is wonderful - I send my family here. My brother bought a car, and loves it!
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






Used
2019 GMC Yukon SLT
Vehicle information
Features
Reviews
Jim Trenary review
The guys at Jim Trenary were quick and efficient. Affable too. They got my car in, checked it out, and changed the battery pretty fast.
Worth the wait to finally have it
We drove two states over to McKenzie Buick GMC in Milton, FL to meet with Nick and make a purchase on our new Yukon Denali. Customer service was top notch. We were going for their 2019 Yukon Denali to replace a 2008 Tahoe LTZ. We are very pleased with the vehicle. The upgrades are wonderful. Love the cooling seats, the wifi, the HUD and even days after our purchase they have reached out to check on how we were and mailed us a small gift that meant so much. We will definitely use them again if they ever have what we’re looking for on a future purchase. - Brandon Howell 2019 Yukon Denali






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great Service
I bought a 22 Ford Bronco from Clement Ford in December 22 and have had on scheduled service which went great using the valet service they provide. However, what really impressed me was this week I had an issue with the bead locks on my wheels. I spoke to Jerry and Alex in their service department and they were able remove the bolts I was having issues with, allowed me to use the valet service once again, and didn't even charge me for the time. I'm very happy with my experience with them so far!
This truck has a jerk when changing gears sometimes.
This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.



Used
2016 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
always friendly service
friendly, reliable service, never have had a problem getting an appointment. I drive twenty miles just because of the good service received.
a great Truck
I've owned my truck for nine years now it is never once let me down. I'm about to put my first set a tires on it and brakes other than that I don't plan on getting rid of it it's never let me down and after reading all the other reviews it makes me realize they don't make them like they used to as they used too!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I was served well by my salesman James Willis, He was
I was served well by my salesman James Willis, He was very friendly, helpful and he took the time to explain the process and was so helpful in explaining all of the different versions of the Silverado. I am very grateful to all of the assistance he provided me and I am so happy with my purchase. Will definitely be referring my friends to your dearship,
Brake Pad Monitor
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
2018 crew cab gmc Sierra 1500
Am in disbelief every week at the Gas Pumps. Thou a big truck, mileage per gallons are 18 +. Last week it was 22.8. This week 19.78.
Used
2018 GMC Acadia SLT-2
Vehicle information
Features
Reviews
Brian Reis did a great job.
Brian Reis did a great job. My husband got a new truck and Brian helped us find the right truck and walked us through the whole process
GMC 2018 Acadia
I love my 2018 GMC Acadia just wished windows were tinted and had a tv for kids and grandkids overall I have had this truck for 2 years and I Love it and use it for family drives cuz of how much room it has I have even used it for work meetings and we all travel to the meeting together .






Used
2011 GMC Terrain SLE-2
Vehicle information
Features
Reviews
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
Services
Awesome your staff is the best I've ever !!! Will always you BELLEMANN its literally the best customer service group I've seen Worth the extra mile to get there!!!
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
2023 GMC Terrain AWD AT4
Vehicle information
Features
Reviews
Sales and Service did a great job
Thank you Andy and Brett for the help! As usual you both are super helpful and always find a way to get the vehicle I want!
Love Our New 2023 Denali Terrain!
We purchased the Denali Terrain 2023. The car is great. I have had four knee surgeries and needed a car to get in and out easily and comfort seating. The controls for adjusting the seat just the way you like are great. I am troubled also by back problems and totally love the heated seat when needed. Sometimes I just want to ride around and turn the heat on and adjust seat so my back feels better. The different controls and are numerous. I love the safety control warnings and info with traffic. The screen is fabulous and helps so much. When ever I park I like to drive in and park and then hold on brake put it in reverse so the screen then comes on and shows how I parked. I like the levers in cargo area for putting seats down and also like how flat they sit. Plenty of room. The back seat is roomy even when person in front is back. Enjoy being up higher than a vehicle. I feel I can see more and it also makes me feel safer. The Terrain looks beautiful and love all the chrome in front. The car seems bumpy but not as bad as our last. The roads are in rough shape here. It has a lot of pick-up my husband demonstrated that to me and he wont be doing that again unless it is necessary. It is a turbo 4 cylinder and can not believe the power you feel. All in all Iove the car and getting good mileage. Purchased car from Boucher in Waukesha. They were not pushy. Explained everything in detail and were very fair. Great place to purchase!






Used
2024 GMC Terrain SLT
Vehicle information
Features
Reviews
Excellent customer service serveral times and when I
Excellent customer service serveral times and when I brokedown on the side of the road. Thank you Shay Strong!!
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.






Used
2020 GMC Terrain SLE
Vehicle information
Features
Reviews
We just had our 2017 Ford Escape in for an oil change and
We just had our 2017 Ford Escape in for an oil change and its annual checkup. David Farmer the Service Advisor did an excellent job of putting up with 2 old cranky people who complained a lot about various little things. He is a kind young man that gives a good impression of your service department.
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






Vehicle information
Features
Reviews
This review is for Jason Gross service manager.
This review is for Jason Gross service manager. I needed an engine replacement in my Ford edge due to coolant intrusion and after talking to Jason within a few days, he had ordered to parts. I brought the car in and a week later I picked it up and it’s been running great ever since then. Thank you again, Jason for all your help you made all the difference in the world, getting this done right and in a timely manner, thank you ! Jerry D.
Denali made the difference for us
We are very happy with our Terrain Denali. Our first choice was the 2023 Lincoln Corsair 1a but there are no in inventory. The Terrain Denali was 1b. Great styling exterior and interior
*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
82 Great Deals out of 283 listings starting at $4,900
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GMC under $40,000 in O Fallon, MO
82 Great Deals out of 283 listings starting at $4,900
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GMC under $40,000 in Dardenne Prairie, MO
82 Great Deals out of 283 listings starting at $4,900
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GMC under $40,000 in Lake St. Louis, MO
72 Great Deals out of 236 listings starting at $4,900
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GMC under $40,000 in Lake Saint Louis, MO
72 Great Deals out of 236 listings starting at $4,900
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GMC under $40,000 in Cottleville, MO
88 Great Deals out of 305 listings starting at $4,900
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GMC under $40,000 in St. Paul, MO
64 Great Deals out of 213 listings starting at $4,900
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GMC under $40,000 in Saint Paul, MO
64 Great Deals out of 213 listings starting at $4,900
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GMC under $40,000 in St. Peters, MO
99 Great Deals out of 336 listings starting at $4,900
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GMC under $40,000 in Saint Peters, MO
99 Great Deals out of 336 listings starting at $4,900
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GMC under $40,000 in Weldon Spring, MO
91 Great Deals out of 314 listings starting at $4,900
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GMC under $40,000 in Wentzville, MO
49 Great Deals out of 169 listings starting at $4,900
GMC under $40,000 in O Fallon, MO by model
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GMC Acadia under $40,000 in O Fallon, MO
22 Great Deals out of 82 listings starting at $6,600
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GMC Terrain under $40,000 in O Fallon, MO
32 Great Deals out of 82 listings starting at $4,900
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GMC Sierra 1500 under $40,000 in O Fallon, MO
12 Great Deals out of 71 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.