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Used
GMC cars
for sale
near
Port Byron, IL
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
2014 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Loved Marvin Wyatt.
Loved Marvin Wyatt. He was great and we love our red 2025 chevy trax. He made the whole experience memorable and I would highly recommend him for his honesty and kindness. Loved Valerie also. Kudos to Mills
Great truck, solid engine, comfortable, smooth, and it
Great truck, solid engine, comfortable, smooth, and it handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.






GMC Certified
2023 GMC Terrain SLT
Vehicle information
Features
Reviews
Very good customer service!
Very good customer service! This is the second vehicle that we have bought from them, and so far so good!
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
2017 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Awesome service!
Great service and cars, my salesmen explained everything to me very well. Definitely would go back for another car and tell my friends about them!
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
2019 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
We had an excellent experience, we will definitely go to
We had an excellent experience, we will definitely go to Clinton when purchasing our next 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
2022 GMC Acadia Denali
Vehicle information
Features
Reviews
The sales team and management are amazing.
The sales team and management are amazing.!! Bought a brand new car from Calieb and he made this a great experience! All I had to do is come in and sign papers and I was out the door.. Thank you Calieb!
I love my Acadia Denali.
I love my Acadia Denali. It is fully loaded with anything you can think of.I love the V6 engine and how smooth it drives and rides






Used
2023 GMC Acadia AWD SLE
Vehicle information
Features
Reviews
Friendly and knowledgeable staff that were eager to help
Friendly and knowledgeable staff that were eager to help in any way possible with our needs.
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
2014 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Branson Banks - superb salesman!
My salesman Branson Banks was supurb! He worked very hard to find the perfect vehicle for me! I definitely recommend Green Buick GMC for the purchase of your next vehicle - tell 'em Bert sent ya!!!
Great truck with some bad
It is a great truck with great capabilities! although i must say, some of the technology in this car has its low points. Center stack tends to not cooperate during bluetooth pairing and the headlights have poor illumination to the point i had to retrofit LED bulbs for better visibility. Overall very comfortable ride and smooth drive






Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Awsome
Stong engine and smooth! Highly recommend for familys or someone who likes a smooth truck. Purchased new and have had zero issues since then. Love it!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
HIGHLY RECOMMEND
Best people great inventory more than flexible finance got me a great deal exactly how I needed it. Would recommend to all friends and family
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
2015 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Quick and Efficient Service
Service department is very knowledgeable about various car issues and gave great options on how to resolve each issue. They were friendly and answered to the best of their ability all the questions I asked. I was happy with the quality of service I received in addition to the quick turnaround time.
This truck is the base model and that is exactly what we
This truck is the base model and that is exactly what we were looking for. A good solid truck without all the fancy technology. It drives like a dream, handles just as well and the interior is sleek and well designed. Perfect black on black exterior.... a man's truck.






GMC Certified
2023 GMC Acadia SLE
Vehicle information
Features
Reviews
The whole truck buying experience was made easy by Green
The whole truck buying experience was made easy by Green Family Chevrolet sales associate. He was patient and very professional, and made our experience a great one to remember. I would recommend Green Family Chevrolet to anyone who is looking to purchase a vehicle.
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
2016 GMC Savana 2500 Work Van
Vehicle information
Features
Reviews
2010 jeep
Awesome will buy from again an again easy they worked hard for me to get it done just drove two hours to get home Jeep is great great deal honest guys
Quality and very reliable.
I have owned this truck for 2 years. It is a Sierra SLE which is a comfortable entry level, wished I would have gotten the SLT. Have only 3 areas of (could have been better) 1. approach angle 2. APP or instrumentation management for the 4 wheel system doesn't show hardly any info. 3 Fuel consumption control, no options for various usability IE... Towing, Hauling, Performance and Economical.
Certified
2019 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Car care
Close by where I live, love driving thru the lot and looking at cars. Easy to get my car in for service.
Beautiful Truck
I bought a 2019 GMC Sierra Elevation. I traded in a FULLY loaded 2015 Sierra SLT, that I was really sad to see go, but the Elevation really sold me on styling and ride quality. I lost a couple high end bells and whistles, but the overall performance and look of the truck make up for it big time!
Certified
2018 GMC Canyon SLE
Vehicle information
Features
Reviews
Best Place to buy a car
Great deals, Great people, Purchased several cars thru this dealership over the years, excellent place to purchase a car and have it serviced.
I bought this truck new 8 years ago (and 77k miles).
I bought this truck new 8 years ago (and 77k miles). I use this truck for truck things like towing a 5,200lb trailer @8 times a year. The V6 has plenty of power and gets good mileage (22 mpg combined, 29 highway empty, 15 pulling the trailer). Reliability has been outstanding. The transmission needs a full flush about every 40k to keep it shifting smoothly. Other than that this truck has been without issue.






Used
2017 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
Doug was friendly and knowledgeable.
Doug was friendly and knowledgeable. The process to buy my car was quick and easy.
Smooth ride strong motor decent gas mileage inside cab is
Smooth ride strong motor decent gas mileage inside cab is loaded and very tastefully done along w easy access to knobs. Plenty of room. In back seat ! Aclassy looking Truck with a tacky looking owner!!






Vehicle information
Features
Reviews
Great service!
Great service! The service team was very polite and efficient. My service was completed in 30 minutes. The facility was very clean and neat with snacks available while I waited.
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
2022 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Always great service!
Always great service! Staff is very professional! I will always recommend coming to Mills Chevrolet.
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!






Used
2019 GMC Canyon Denali
Vehicle information
Features
Reviews
They had some repairs to make before delivery which
They had some repairs to make before delivery which turned out great! Enjoyed working them!
2019 Canyon Denali.
2019 Canyon Denali. All sorts of bells and whistles, several that I don't really need. Biggest complaint: no memory seats and no Homelink garage opener. Ridiculous. What accountant made that decision?
Used
2020 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
We purchased a 2023 GMC Acadia with the assistance of
We purchased a 2023 GMC Acadia with the assistance of John Thomas, Sales & Leasing /JT and Max in Finance. To start, John made the process painless and easy. He answered every question we had. He was very patient and kind. We had a wonderful experience. Max with Finance was very nice. He also answered all of our questions as well as being patient and kind. Both of these gentlemen provided excellent customer service. You could tell they both enjoyed their job. Thank you so much!
2020 GMC 2500 AT4
This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.
Used
2022 GMC Canyon 4WD AT4 w/Cloth
Vehicle information
Features
Reviews
Great staff and quality service
Excellent staff and quality service at a reasonable price Their staff reviewed what service was required and completed that service quickly
Diesel AT4 it!
GMC Diesel Canyon AT4. I've had this truck for a year-11,000 miles. I love it. The Denali and Elevation trim looked like junk. The AT4 can't compete with the Tacoma off road but, It holds it's own off road. The Diesel pulls like a beast and the exhuast brake, on all the moutain passes I drive, is worth it's wieght in Gold. I trailer the max. capacity regularly and it's smooth sailing. I traded in my 2500HD Silverado with the vortec 6.0 for this big, little truck. Best decision I've made in a while. I had this truck on order for 8 months and Gm never accepted the order. I finally found exactly what I ordered, just off the truck that morning that I called. 1300 miles away, I jumped on a plane to go get it. Crying shame GMC discontinued the diesel. The extra $ per gallon right now is easily washed by the increase in mileage, 32+ higway, 19 trallering almost 8000 #'s. I wouldn't want the truck without it. Wouldn't want the Elevation or Denali. Diesel AT4 is the truck. I'll keep it the rest of my life barring accident. I'm sure I can get 40 years out of this truck doing 10-12k a year. The regeneration of the exhaust has never come up but, I only do a little round town driving. Most of my miles are highway and hauling a load. I've heard horror stories about regen. from city folk, commuters... You get what you aim for. If you've given it a lot of thought and the diesel AT4 seems right for you, you won't be disappointed. Good luck finding one. GM - You've a winner here. don't let it get away. Ps. Cars.com doesn't have a choice of how I use this truck for WORK. And wouldn't let me submit this review without selecting one of thier 3 inadequate choices. So, I selected having fun cause I believe everything should be but, this is my WORK TRUCK!
*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.
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