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Used
GMC cars
for sale
near
O Fallon, MO
under $100,000
- 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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Exceptional experience very good price Brian Ries is a
Exceptional experience very good price Brian Ries is a excellent salesman had vehicle equipped exactly what were looking for
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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I was pleasantly surprised at how comfortable everyone
I was pleasantly surprised at how comfortable everyone that I came in contact with and worked with made me feel. I was thrilled with the process and I plan on bringing my sister over here very soon to buy a car.
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
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
The Best Ford Dealer in St Louis area
This Service Department saved my sanity. I had an issue on a new Ford Focus that no other service department in area could even locate, tried 2 other service departments including original dealer car was purchased from. They found it and fixed it in 2 days.
Any reviews on this vehicle is not correct.
Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !
Used
2020 GMC Yukon SLT
Vehicle information
Features
Reviews
My experience with Hayden was great.
My experience with Hayden was great. He was knowledgeable, courteous, and willing to present my offer on the vehicle. I ended up purchasing in my home state but would highly recommend them based on my experience with them.
Buy one if you can afford it
Excellent and reliable, only thing buyers have to do is buy a AFM disabler that you can stick into OBD2 port to avoid lifter failure (longer story, nobody wants a V8 to run in V4)
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Fast, easy, informative!
Fast, easy, informative! I felt like I got all the information I needed and great rates!
Nicest, best performing truck I've ever owned
My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.
Used
2025 GMC Yukon Denali
Vehicle information
Features
Reviews
Great experience working with our salesman Shanon he made
Great experience working with our salesman Shanon he made our experience seamless and was very understanding of our needs and budget. Eric W.
Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Fabulous experience from beginning to end.
Fabulous experience from beginning to end. Ron Martin was welcoming and truly interested in helping me find the car I wanted. His friendly - no pressure approach made the car buying experience easy and fun.
I bought this after going to the dealer just to look at
I bought this after going to the dealer just to look at colors. I had a 2016 Chevy 1500 LTZ that I loved. There was my down payment and took this Denali home. Only 2 options. Paint and moonroof. I thought my chevy with 3.42 gears was quick. This one goes with 3.23's. The ride is great. Fit and finish are perfect. My only complaint is this Bose/Apple play radio is not what the 2016 Bose was.
Used
2021 GMC Yukon Denali
Vehicle information
Features
Reviews
Bommarito Volkswagen
I would like to thank Andre Branch for the excellent service I received during the purchase of my Atlas Cross Sport. This is my first SUV purchase and I love it. Thank you Andre for knowing exactly what I needed. I we continue to support him. Thanks, Vanessa Chambers Browley
I have enjoyed my vehicle.
I have enjoyed my vehicle. It is comfortable and drives very well. I like the color also. It is very roomy, takes off fast and the safety features are very beneficial.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My Name is Gayle McClure, 1st I’ve been taking my car to
My Name is Gayle McClure, 1st I’ve been taking my car to Sunstrup over 10 years. The technicians and service advisor, Ian, and Scott are the most knowledgeable and patient people with their customers. I trust their advice, they always tell me the truth. I would recommend anyone who ask me to trust Sunstrup.
2021 GMC Sierra Denali
This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Everyone at the dealership was amazing!
Everyone at the dealership was amazing! They answered all of my questions, made me feel comfortable, and confident with everything! I definitely recommend this dealership to anyone looking for a used or new car.
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!
Used
2023 GMC Acadia Denali
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
such a friendly company.
what a great dealership. there was no selling, they educated me. I know what I wanted almost and they filled the gaps. Every time I go in there I get treated as part of the team
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
2022 GMC Yukon Denali
Vehicle information
Features
Reviews
I recently had the pleasure of purchasing a car from
I recently had the pleasure of purchasing a car from Suntrup Kia South, and I can’t express how satisfied I am with the experience. Despite being a thousand miles away, their professionalism, transparency, and warmth made me feel right at home. From the moment I connected with Moe Saad, I knew I was in good hands. Moe exemplified the epitome of a top-notch car salesman, providing me with reassurance and guidance every step of the way. My search for the perfect EV9 led me to many dealerships, but none matched the integrity and authenticity of Suntrup Kia South. Moe and his team went above and beyond, offering red carpet treatment without the need for an actual red carpet. Even while under the weather, Moe ensured a seamless transaction, passing the baton to Dzenis, who continued the stellar customer service. From start to finish, every detail was meticulously handled, including a thoughtful conversation with sales manager Dave, who ensured my satisfaction was met at every turn. In an industry often plagued by deceit and gimmicks, Suntrup Kia South stands out as a beacon of honesty and excellence. It’s rare to find such a level of service and transparency, and I can confidently say this was the best car-buying experience I’ve ever had. Despite the distance, I’d make the journey again without hesitation. If you’re in the market for an EV9 or any vehicle, do yourself a favor and visit Suntrup Kia South. You won’t be disappointed. Hats off to Moe, Dzenis, Dave, and the entire team for exceeding expectations and setting the bar high for customer satisfaction.
Yukon Denali all new styling and pleasure to drive
Nice styling,interior has a new design dash which is beautiful and convenient,safety features and cameras are great and easy to used and the active cruise is awesome.
Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Our new truck 2017 Chevy Colorado
I would recommend you get a car or SUV or any vehicle from salesman Jason Freed he was amazing he worked with us and go us into a truck that we love and worked with us so we didnt have to finance also his amazing customers services he really understands his customers and there needs and the financer was also terrific please please please come here. I will be coming back and buying another vehicle in the future and I will request my salesman again thank you Jason Freed for your amazing help. Give this man a raise VW. Sincerely matt&becca
Overall I am very happy with my new Truck.
Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?
Used
2023 GMC Yukon Denali
Vehicle information
Features
Reviews
Great Customer Service
Bought my second car from them today and it was a great experience! Thank you to Zack Forister, Dzevad, Bob Whay, and Linzie Foster for the excellent customer service! I appreciate everyone taking the time to speak with me and helping me find exactly what I was looking for.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great day
Buying a car made easy! Beautiful facility with everything needed to make that difficult decision less painful. Wonderful staff with great coffee and snacks. Thanks Dave Keyser
Used
2023 GMC Acadia AT4
Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
MATT WAS GREAT TO DEAL WITH.
MATT WAS GREAT TO DEAL WITH. HE TOOK EXTRA TIME TO MAKE SURE I UNDERSTOOD ALL FEATHURES. LOVE THE TRUCK AND THE POWER. I WILL TELL MY FRIENDS AND FAMILY.
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
2025 GMC Sierra 1500 AT4X
Vehicle information
Features
Reviews
Work was done on Schedule, actually completed prior to
Work was done on Schedule, actually completed prior to estimated completion time. Both my Service Advisor Jerry and the Tech, came to me afterwards to make sure everything was Satisfactory. Thank You
I have the 1500 double cab with standard bed.
I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.
Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Good Experience
Great service dept, helpful. Sales was helpful in locating the car I have been looking for. Would/will shop atCarMax again. They make it easy and I appreciate the no pressure sales.
I own a 2023 Sierra 1500 Elevation equipped with the 2.
I own a 2023 Sierra 1500 Elevation equipped with the 2.7L TurboMax, and it’s been outstanding. It currently has 23,000 flawless miles. I’ll admit, I was skeptical of the 2.7 at first, but I jumped in feet-first and have never looked back. Living in Colorado, I regularly tow a 5,000-pound travel trailer through the Rockies with zero performance issues. The truck pulls confidently, handles grades with ease, and still delivers impressive fuel economy—23–24 mpg on the highway and about 18 mpg in town. I couldn’t be happier with this setup. If there is a negative to mention, that would be that after three years of ownership, the black wheels havent grown on me, and Im beginning to hate em. :) Lastly, the mpg while towing drops to 9mpg which is similar to that of a V8. All said, its been a great truck. :)
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Recently bought a Sienna with David Bell and had a good
Recently bought a Sienna with David Bell and had a good experience. He was professional but not pushy and felt we got a fair deal. Would recommend.
Used
2022 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
I purchased a new Lincoln Aviator.
I purchased a new Lincoln Aviator. The salesman was great. However I was disappointed in the detailing of the car when I picked it up. And to realize no one saw the dent in the car before selling to me.
2022 GMC Sierra SLT 3.0 Duramax
My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!
About GMC
What is the cheapest GMC vehicle available?
The GMC Acadia Limited is the cheapest available vehicle by average Cars.com listing price in GMC's lineup, with an average listing price of $12,694.
Which GMC vehicle has the best MPG?
The GMC Yukon Hybrid can reach up to 21 MPG city and 22 MPG highway for a combined rating of 22 MPG. The GMC Terrain with traditional internal combustion engine offers up to 26 MPG city and 30 MPG highway for a combined rating of 28 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle model year, trim, driving conditions, driving habits, vehicle maintenance, and other factors.
Which GMC vehicle has the longest range?
The electric GMC Sierra EV can travel up to 440 miles on a single charge depending on electric motor and battery options.
EPA-estimated range is the distance, or predicted distance, a new plug-in vehicle will travel on electric power before its battery charge is exhausted. Actual range will vary depending on model year, driving conditions, driving habits, elevation changes, weather, accessory usage (lights, climate control), vehicle condition and other factors.
Which GMC vehicle has the most deals?
The GMC Sierra 1500 has the most available deals on Cars.com with 3344 great deals out of 16297 listings starting at $1,000.
Where can I find the most GMC deals?
The most GMC deals can be found near Maryland Heights, MO with 153 great deals out of 592 listings starting at $3,950.
*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 $100,000 by city
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GMC under $100,000 in O'Fallon, MO
88 Great Deals out of 379 listings starting at $3,950
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GMC under $100,000 in Dardenne Prairie, MO
88 Great Deals out of 379 listings starting at $3,950
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GMC under $100,000 in Lake Saint Louis, MO
80 Great Deals out of 346 listings starting at $3,950
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GMC under $100,000 in Lake St. Louis, MO
80 Great Deals out of 346 listings starting at $3,950
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GMC under $100,000 in Cottleville, MO
95 Great Deals out of 407 listings starting at $3,950
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GMC under $100,000 in Saint Paul, MO
76 Great Deals out of 322 listings starting at $8,975
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GMC under $100,000 in St. Paul, MO
76 Great Deals out of 322 listings starting at $8,975
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GMC under $100,000 in Saint Peters, MO
110 Great Deals out of 451 listings starting at $3,950
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GMC under $100,000 in St. Peters, MO
110 Great Deals out of 451 listings starting at $3,950
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GMC under $100,000 in Weldon Spring, MO
99 Great Deals out of 427 listings starting at $3,950
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GMC under $100,000 in Wentzville, MO
61 Great Deals out of 280 listings starting at $9,500
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GMC under $100,000 in Flint Hill, MO
61 Great Deals out of 264 listings starting at $9,500
GMC under $100,000 in O Fallon, MO by model
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GMC Sierra 1500 under $100,000 in O Fallon, MO
32 Great Deals out of 104 listings starting at $3,950
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GMC Acadia under $100,000 in O Fallon, MO
18 Great Deals out of 74 listings starting at $6,499
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GMC Terrain under $100,000 in O Fallon, MO
15 Great Deals out of 57 listings starting at $10,899
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GMC Yukon under $100,000 in O Fallon, MO
4 Great Deals out of 47 listings starting at $8,599
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GMC Sierra 2500 under $100,000 in O Fallon, MO
2 Great Deals out of 37 listings starting at $18,000
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GMC Canyon under $100,000 in O Fallon, MO
6 Great Deals out of 20 listings starting at $21,695
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