Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
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
I had an excellent experience working with Rodney Brown.
I had an excellent experience working with Rodney Brown. From the very beginning he was knowledgeable, attentive, and genuinely interested in helping me find the right truck. He provided clear, honest recommendations, and I never felt pressured to make a purchase.
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
My experience at Frank Leta Honda was truly top tier from
My experience at Frank Leta Honda was truly top tier from start to finish. From the moment I walked in, I was greeted warmly, and it was immediately clear how much pride they take in their dealership. The space was spotless and thoughtfully set up to create a great customer experience. My sales associate, Cody, was exceptional. He was easy to talk to, incredibly patient, and thorough in answering all of my questions. One thing that really stood out was the way he took the time to visually explain the difference between buying and leasing…something that can feel overwhelming. He broke it down in a way that actually made sense, and I never once felt pressured. Instead, it genuinely felt like he had my best interests in mind. There was none of the typical sales pitch energy that can make car buying stressful, which I truly appreciated. Cody also went above and beyond by moving a vehicle indoors so I could look it over comfortably despite the freezing temperatures and high winds. He made sure I fully understood the deal and then walked me through the vehicle so I felt confident using everything before leaving. I also want to recognize Tito and Ray in the finance department. They made that part of the process incredibly smooth, taking the time to explain each form clearly and walking me through everything step by step. Their attention to detail was impressive. Overall, this was unlike any car-buying experience I’ve had before. I never felt rushed or treated like just another number. Every associate I worked with, from sales to finance, clearly cared about delivering exceptional service. I can’t recommend Frank Leta Honda enough.
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
professional service
Great location and the perfect setup, easy in and out. They know what they are doing and have state of the art equipment.
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
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.
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
Amazing Rental Department
Came in for a repair on my vehicle and was also getting a rental the rental department went above and beyond to make sure the vehicle was clean and disinfected and ready for me I was in and out of there in no time at all will definitely be back because of those young gentlemen.
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
My service representative, Danielle, was exceptionally
My service representative, Danielle, was exceptionally attentive to my needs and made sure I was comfortable throughout the process. She took the time to listen carefully, explain everything clearly, and ensure I understood each step. Her friendly and professional demeanor made the experience smooth and stress-free.
Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Thank to AJ I got my dream car and got it at an excellent
Thank to AJ I got my dream car and got it at an excellent price!
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
Leasing a 2021 Tiguan
I’ve driven Volkswagens since 2002. My very recent leasing experience was seamless thanks to Jason K. The Bommarito team was informative, efficient, and pleasant to work with from start to finish. Thank you, Jason Kresko!
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
Pleasant Experience
The lease on our car was up and a friend recommended Suntrup in South County. Since we were up that way we decided to check it out and were greeted by Zach Seiler at the door and we’re pleasantly surprised by his knowledge, patience, and low pressure salesmanship. In a relatively short time we were transferring items from our old car into our new 2021 Volkswagen Jetta-which we really did not plan to purchase that day. And by the way Zach helped us with that, too
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
Easy process.
Easy process. Dmytro was very helpful and accommodating. Follow up was timely. Found the car I wanted online, submitted a request for information, received a call back immediately.
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
Gregory
Billy was upfront and personable during the Palisade negotiations. No BS...I recommended him to my son during his Sante Fe negotiation. Billy located and brought in the vehicle he wanted.
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
Bought the car I had researched from Suntrup KIA.
Bought the car I had researched from Suntrup KIA. The salesman Moe was way more than helpful.every one I dealt with was super helpful friendly and seemed very genuine. Moe spent as much time as I wanted showing me features. And even would explain more about her telluride that she bought somewhere else. I have bought many cars in my life. But I can honestly this was my best car buying experience. They all did try to meet my terms and I left feeling I got a great deal. And I did.
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
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
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
Best experience Buying a car no hype or pressure
Just Bought my first BMW 328i Xdrive and was treated excellent by Veronica and David stepped up and made sure I was taken care of when Veronica was on bed rest , Veronica called and text me from bed rest also. while i waited for a windshield took a little while but they also saw a few things on a used car that they did not have to fix but did and i was amazed that they went above what iI would expect on a used car. I was never pressured and Rami in financing never tried to up-sale a warranty. so with a full tank of fuel we drove back to Iowa VERY HAPPY thank you! :)
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great truck, great package, fully loaded
Our sales person Doug Clever he took the time to walk us through that big lot, he did not pressure us, and covered all questions before we could ask, we walked away with a truck that my guy really liked, thank you Doug from C, washington and D, Perkins
Used
2020 GMC Yukon SLT
Used
2019 GMC Sierra 1500 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.
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
Nikki was extremely professional and knowledgeable about
Nikki was extremely professional and knowledgeable about the trucks. The buying experience could not have been easier, and I never left South Carolina! My new Denali Ultimate gets delivered today at 5!
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
Quincy
Great experience at Carmax at Mid Rivers in St. Louis. We were looking for a low mileage 2014 Toyota RAV4 and we found the SUV we wanted on the lot. In total it was the fastest we have been in and out of a dealership after buying the SUV.
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 3347 great deals out of 16299 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
-
GMC under $100,000 in O'Fallon, MO
88 Great Deals out of 379 listings starting at $3,950
-
GMC under $100,000 in Dardenne Prairie, MO
88 Great Deals out of 379 listings starting at $3,950
-
GMC under $100,000 in Lake Saint Louis, MO
80 Great Deals out of 346 listings starting at $3,950
-
GMC under $100,000 in Lake St. Louis, MO
80 Great Deals out of 346 listings starting at $3,950
-
GMC under $100,000 in Cottleville, MO
95 Great Deals out of 407 listings starting at $3,950
-
GMC under $100,000 in Saint Paul, MO
76 Great Deals out of 322 listings starting at $8,975
-
GMC under $100,000 in St. Paul, MO
76 Great Deals out of 322 listings starting at $8,975
-
GMC under $100,000 in Saint Peters, MO
110 Great Deals out of 451 listings starting at $3,950
-
GMC under $100,000 in St. Peters, MO
110 Great Deals out of 451 listings starting at $3,950
-
GMC under $100,000 in Weldon Spring, MO
99 Great Deals out of 427 listings starting at $3,950
-
GMC under $100,000 in Wentzville, MO
61 Great Deals out of 280 listings starting at $9,500
-
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
-
GMC Sierra 1500 under $100,000 in O Fallon, MO
32 Great Deals out of 104 listings starting at $3,950
-
GMC Acadia under $100,000 in O Fallon, MO
18 Great Deals out of 74 listings starting at $6,499
-
GMC Terrain under $100,000 in O Fallon, MO
15 Great Deals out of 57 listings starting at $10,899
-
GMC Yukon under $100,000 in O Fallon, MO
4 Great Deals out of 47 listings starting at $8,599
-
GMC Sierra 2500 under $100,000 in O Fallon, MO
2 Great Deals out of 37 listings starting at $18,000
-
GMC Canyon under $100,000 in O Fallon, MO
6 Great Deals out of 20 listings starting at $21,695
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
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.
