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Used
GMC Terrain
for sale
near
O'Fallon, IL
under $20,000
- 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
2012 GMC Terrain SLT-2
Vehicle information
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Used
2022 GMC Terrain SLE
Vehicle information
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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
Love my GMC Terrain!
I fell in love with my GMC Terrain when I test drove it and have not lost that loving feeling! I have received tons of compliments on it.






Used
2018 GMC Terrain SLT
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Reviews
2018 Nissan Murano
Dustin was the perfect salesman for us. He was knowledgeable and able to help us make decisions based on our needs. We never felt pressured at any point.
We love our GMC Terrain !
We love our GMC Terrain !! We recently purchased from former Mike Duman in Suffolk, VA which is now Priority Mitsubishi our salesman Mr.Knight is highly recommended He’s a man of God, great respectable person, and very professional!! Whenever you are in the area and you’re looking to purchase a vehicle contact Mr.Mervis Knight !!






Used
2017 GMC Terrain Denali
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Reviews
Didn’t buy car but was treated very well no pressure will
Didn’t buy car but was treated very well no pressure will consider them for a future car or truck
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
2023 GMC Terrain SLE
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Reviews
I worked with this lovely young lady by the name of
I worked with this lovely young lady by the name of Alyona. The sweetest most kindest thing there she went out of her way to make me laugh and make me comfortable throughout the whole process!
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
2019 GMC Terrain Denali
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Reviews
My husband and I recently bought a Dodge Ram from Colton
My husband and I recently bought a Dodge Ram from Colton and we had the most pleasant experience! He got us in the truck that met all of our needs within the first 10 minutes. He answered all of our questions, explained the paperwork thoroughly, and made the overall process of buying a car completely painless. We are definitely repeat Federico customers!
My Work horse.
I brought this truck in 2019. I kept taking it back to the dealership to get tweaked several times. Once it was figured out, never got any problems ever again. A little weak on the power side, but, other than that, its a magnificent vehicle. A total work horse. Great on gas. It is totally worth it.






Used
2019 GMC Terrain SLT
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Reviews
Pretty easy process for us.
Pretty easy process for us. We knew what we were already going to be looking at because we really wanted a hybrid. We bought it used but the dealership did a really good job inspecting it and making sure it not a lot was wrong with it. If it weren't for the smoker who was in it last I think the headliner would be cleaner but otherwise the car was in good shape inside. There were a few dings here and there on the outside. The car drives and runs really smooth and overall was happy.
Love love LOVE
I have owned my Terrain for 3 months now, and am absolutely in love with it. Super smooth, great pick up, and I get a lot of complements on both the exterior and interior design. I average 26.3 MPG city and highway combined, which is not bad considering I live in Florida so my AC is never off in the car.






Used
2021 GMC Terrain SLT
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Reviews
Excellent sales team, Josh H.
Excellent sales team, Josh H., was awesome to work with and everyone else was to notch as well.
Our 2021 Terrain SLT is really a nice auto.
Our 2021 Terrain SLT is really a nice auto. Gets great 30 MPG approximately, But, 0 to 60 is lacking horsepower. Great Little highway auto. Comfortable.....






Used
2019 GMC Terrain SLE
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Reviews
Sharp Vehicle
This is my first suv and I was overwhelmed with the style and performance. I have been purchasing General Motor vehicles for a long time. GMC terrain sle is a outstanding investment. I'm enjoying my retirement and my new GMC 👶






Used
2017 GMC Terrain SLT
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Reviews
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
2017 GMC Terrain SLT
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Reviews
A wonderful family car
Very roomy, all the fun stuff included! Beautiful leather seats. Remote start. Drives very smoothly. Easy to customize to your comfort. Highly recommend for families






Used
2018 GMC Terrain SLE
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Reviews
Bought the car CPO in summer 2021 with 38k miles.
Bought the car CPO in summer 2021 with 38k miles. Now being summer 2024 with 90k miles and I’ve mostly had good luck with the car and its components. I have the extended warranty through 100k miles but I feel like all American cars are built to fail after the warranty runs out. Overall great car: I have the 2.0L turbo engine with 9 speed auto and AWD. AWD is great when turned on, grips the road well, and to be honest the 2.0L has a TON of power; way more than you need for a compact SUV! I had a quick issue around 65k miles where the service traction control and stability light came on for 15 minutes. Dismissed itself and haven’t had an issue since. At 75k miles, it was during the winter time, the car would display “park break realized” and “service traction control” when the auto start stop would kick back on (there’s no way to shut off the auto start/stop system). No issues and lights but the messages would pop up and dismiss themselves. Little did I know it was my battery dying and my mechanic said “some wires were loose” and he tightened them up. Haven't had an issue since I got a new battery. Last thing that happens is sometimes when you have Apple CarPlay going and you unplug the phone, the infotainment system will freeze and no Bluetooth, usb, or CarPlay will work for the reming duration of the ride unless you stop the car and let it sit for at least 30 minutes. Simply shutting it off and turning it back on never worked. Overall I give this car a good rating for 0-100k miles. I am pleased with the car but looking for something bigger soon. I think I did overpay a bit for it ($30k for 38k miles) since I got it summer of 2021 when new cars were nonexistent!






Used
2018 GMC Terrain SLE
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Reviews
Alyssa Bopp excellent sales person
Alyssa Bopp was very friendly and very helpful to me and my daughter and made the entire transaction as smooth as possible. I highly recommend Leta Acura! I have now purchased two vehicles from them fir both my daughters.
Gas and diesel terrain
I have owned 5 of the 2018-19 terrains. I have had the 1.5 gas, 2.0 gas and the 1.6 diesel. The power on the 2.0 is awesome. Mileage on the 1.5 is good. Mileage on the 1.6 diesel is great. I have 336,000 miles on my diesel. It has had lots of issues due to emissions and transmissions. Last week it got a new engine as well. The car is a great car but I would recommend the 1.5 gas for most people. The terrain is comfortable and makes a great work or travel vehicle. Size is easy to park with plenty of leg room.






Used
2023 GMC Terrain SLT
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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.
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






Used
2019 GMC Terrain SLT
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Reviews
2018 Nissan Rogue
Cory Reno helped us buy our cars. We just bought our sixth car from Cory on Saturday. He is very knowledgeable and easy to work with. Highly recommend him!
Beautiful!
This car is wayyyyyyyyyyyyyyyy better than i thought it would be! It is beautiful, tinted and very comfortable!!! i wont ie i look good riding in my baby






Vehicle information
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Reviews
Justin Scheaffer supported my acquisition of a 2025 GMC
Justin Scheaffer supported my acquisition of a 2025 GMC Denali truck with total customer care in mind. From finding the exact vehicle I wanted to it delivery, Justin was there, front and center - An Outstanding job; definitely a go-to professional who gets my highest rating!! Thanks Justin - Will stay in touch!
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
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Reviews
Customer Service
Turns out the Manager Andrew is a True Gentleman. Treat him with respect and expect the same.
I had my 2020 Terrain for 5 years before I had any major
I had my 2020 Terrain for 5 years before I had any major issues out of it. My brake booster needed replaced. After about a month of it being out the shop someone hit and totaled it. Very sad day. I love my Terrain






Used
2021 GMC Terrain SLT
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Reviews
Completely satisfied. And happy with this experien
I spoke with Tra Farrow recently at the Alton IL. Location. I was completely honest with him. He ask where I was thinking I wanted my payment to be monthly. I give him my response. I was buying a pre owned vehicle. I bought a Dodge Ram regular cab. He also was completely honest, respectful, of my request. He said he would see what he could do. After talking it was clear that we could complete the sale. I have always purchased my vehicles from private owners. This is the first time I used a dealership. I have this dealership and Tray a five star rating. While I realize it is difficult to get it give a business a five star rating. It was easy to give them the best possible rating. Everyone whom I came into contact with during my visit was outstanding. I was overwhelmed at how easy it was. This business could not have done anymore to change my opinion of dealerships. I know all things do not end this way. If you are in the area of Alton IL. Please give Tra and the staff an opportunity to serve you.
One of the best looking suv's on the road. Highly
Extremely happy. Ride comfort, controls, comfort, looks, quietness, Quality. They should've kept the 2.0 turbo. But this engine not bad at all. Can't wait to get another.






Used
2019 GMC Terrain Denali
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Reviews
It was amazing.
It was amazing. The salesman understood my needs and wants and financial situation and found me the perfect car
Very nice little SUV
Been really enjoying it! It’s actually very comfortable car and reliable! Ride is smooth and quite! Efficient fuel economy is pretty good! I love it!






Used
2017 GMC Terrain SLE-1
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Reviews
I highly recommend this business.
I highly recommend this business. I was completely impressed with Angelo, and the service department. Very knowledgable, reliable and honest. Angelo took the time to answer all of my questions, and provided me with available options from repair to replacement.
My GMC Terrain experience
This vehicle owned up to the GMC name. We never had an issue with this vehicle at all. The amenities were excellent with the model we had. I came with its own phone number provided by At&T along with WiFi! Sunroof, leather interior and not to mention OnStar. Great purchase!






Used
2013 GMC Terrain SLT-1
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Reviews
check the oil every tank fill, dealer advised if it
check the oil every tank fill, dealer advised if it dropped too far it would scrap the timing chain, interference engine lock up. a 6 inch strip of paint blistered off the roof, the rear deck won't set down horizontal (everything slides to the rear. rides like a limo, handles like a dream, no real probs. 168k on the odo.
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GMC Terrain prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Terrain | $34,606 | |
2024 GMC Terrain | $24,546 | 18 Great deals |
About the GMC Terrain
How much does the GMC Terrain cost?
The GMC Terrain price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for the Terrain is $20,441, with pricing starting at $995.
What is the MPG of the GMC Terrain?
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.
What are some similar vehicles and competitors of the GMC Terrain?
The GMC Terrain compares to and/or competes against the following vehicles:
What trim levels are available for the GMC Terrain?
The GMC Terrain is available in the following trim levels:
What model years are available for the GMC Terrain?
Available model years for GMC Terrain inventory range from 2012 to 2026.
*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 Terrain by price
Compare the GMC Terrain
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GMC Terrain under $20,000 in Collinsville, IL
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GMC Terrain under $20,000 in Mascoutah, IL
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6 Great Deals out of 27 listings starting at $4,999
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GMC Terrain under $20,000 in Maryville, IL
6 Great Deals out of 28 listings starting at $4,999
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11 Great Deals out of 37 listings starting at $4,999
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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.