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Used
GMC cars
for sale
near
Union, IL
under $899,990
- 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 Acadia Denali
Vehicle information
Features
Reviews
Service review
Very good repairs were done correctly and a timely manner
Stylish and comfortable.
Just purchased this vehicle a little over a month ago. Love the ride, the comfort of the seats, and, the body style. My only complaint is that it drifts to the right and the steering wheel is several degrees to the left after two trips to the dealer where we purchased it. I will probably have to pay to take it to a known, excellent alignment shop.
Used
2023 GMC Acadia SLT
Vehicle information
Features
Reviews
We purchased a older Jeep at Kunes.
We purchased a older Jeep at Kunes. Eddie Sandoval sales representative helped us with the purchase and provide all the details and service history for the Jeep. Within 3 hours We drove home with our Jeep. Great service, Friendly staff.
I have owned my Acadia just under one year.
I have owned my Acadia just under one year. It is quiet, stylish, has an easy and very effective infotainment system, owns five star safety and shows every indication of being as reliable as the Yukon I owned for 20 years. This Suv will go to 60 mph in about 6.0 seconds flat. It has 20 inch wheels and tires and will turn better and stop faster than most every Suv. I have front and rear heated seats, cooled seats, a sunroof, memory settings and this is only an SLT. My gas mileage routinely exceeds EPA (with AWD). Driving from Milwaukee to Chicago, I averaged 29.8 MPG at 75 mph. EPA is 26 MPG at 65 mph. I truly LOVE that Car and Driver rates this SUV near the bottom. Better for me. I have the Home Run. The OWNERS of the GMC Acadia rate this SUV higher than Highlander Palisade, Explorer, Telluride and all the rest. Count me among them. FYI, not a GM employee, just a happy customer.
Used
2021 GMC Savana 2500 RWD 2500 Regular Wheelbase LS
Vehicle information
Features
Reviews
Great service and people fast and easy buying process
Great service and people fast and easy buying process will recommend to other family and friends fun environment and provide coffee and water will be back for all my service needs and repairs
Best look vehicle ever owned
Tons of room , plenty power , very fancy and high tech for a truck worth every dollar and look very nice on the outside
Used
2019 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Most pleasant waiting room anywhere and the friendliest
Most pleasant waiting room anywhere and the friendliest service people.The mechanics always attempt to fix problems before they start. Also wait time ia always fair.
2019 GMC 2500 Denali Excellent Condition
Wonderful truck. Has had zero problems. I am trading for a new one. Truck is all original with no modifications. Truck is in excellent condition.
Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I recently purchased a car and had a great experience.
I recently purchased a car and had a great experience. The team was incredibly helpful and always available to answer questions, never pushy or pressuring me to buy. Excellent service all around. Highly recommend.
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
2025 GMC HUMMER EV SUV 2X
Vehicle information
Features
Reviews
Andrew Doyle at this dealership was amazing to work with.
Andrew Doyle at this dealership was amazing to work with. He was soft spoken, detailed yet concise. He was influential in making a deposit for a purchase. I had to pull out later for other reasons. But I give high regards to Andrew’s work.
Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
We recently had the pleasure of purchasing a vehicle from
We recently had the pleasure of purchasing a vehicle from McGrath Acura of Libertyville, IL, and we are exceedingly pleased with the experience. From the moment we arrived, the atmosphere was welcoming and respectful, largely thanks to the exceptional service provided by Mr. Cristian Lopez. He displayed remarkable professionalism and courtesy, taking the time to truly understand our needs without any pressure. Mr. Lopez answered all of our inquiries in a thorough and transparent manner, which made the entire process feel effortless and straightforward. We would also like to extend our gratitude to Mr. Trent and Mr. Victor, who effectively presented us with various aftermarket options and facilitated the necessary paperwork with efficiency. Overall, the transaction was seamless and stress-free. The vehicle we purchased was precisely as described and very reasonably priced, further affirming our satisfaction. We wholeheartedly recommend McGrath Acura in Libertyville to anyone seeking a new vehicle. Their commitment to outstanding customer service truly sets them apart.
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
2016 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
They have a lot of trucks for reasonable prices.
They have a lot of trucks for reasonable prices. I recently bought a 2013 Ford F150 came out very clean. It runs good and I recommend them to anyone else who’s looking for a good truck
My 2016 GMC Sierra 1500 SLT All Terrain - Love it!
I've owned this GMC Sierra 1500 All Terrain since it was 8 months old. With the exception of two warranty issues (failing power brake vacuum pump and transmission electrical harness), I have been totally happy with this truck. Up until now, my 1996 Chevrolet K1500 Silverado with it's 5.7L Vortec engine was my favorite truck of all time, this GMC (5.3L LS engine, 8 speed automatice) has earned the top spot now of my all time favorite truck. It is comfortable to drive, and runs as good as the day I bought it over 5+ years ago. I've got 71.5K miles on it. My biggest issue is I wished it had the 6.2L engine for better towing capabilities. Other than that ... love this truck.
Used
2024 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Eduardo Del Rio helped me buy my ford explorer and made
Eduardo Del Rio helped me buy my ford explorer and made sure it was in my own liking
I love it the look the interior mine is a red one and it
I love it the look the interior mine is a red one and it looks so good and it’s my baby and it runs so good and the technology is off the chain
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
We had an outstanding experience with Alex Lopez while
We had an outstanding experience with Alex Lopez while choosing our new Lincoln Nautilus. From the very beginning, he was professional, friendly, and incredibly patient. He took the time to explain every detail, answer all our questions, and guide us step-by-step until we found the perfect vehicle. Alex made the entire process easy, transparent, and pressure-free, which we truly appreciated. His knowledge of the vehicles and his genuine interest in his customers really stand out. We are extremely happy with our new purchase and highly recommend Alex to anyone looking for top-quality service. Thank you for everything, Alex! 🙌🚗✨
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
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Everything about my experience was great.
Everything about my experience was great. Organized, efficient, friendly. Karl was my car sales go to. He checked all the right boxes and now I have the perfect car, with the perfect rate, for my family and our adventures.
Great Diesel truck when emission sensors work
Great vehicle for pulling my fifth wheel RV which weighs around 20,000 pounds. This dually truck pulls the RV very nicely without any significant strain on the engine or the transmission. However, like all of today's diesel engines there are 4 different system of emissions on this truck. Each one of these emission systems has sensors associated with them. If one of these sensors goes bad the truck will not perform optimally and sometimes it will go into the limp mode. Unfortunately this is not unique to GMC trucks. All manufacturers are battling this system. Also, I have had to take the truck to the dealer for computer upgrades in order to improve performance. I wish these upgrades could be performed on line (through wifi or with my own phone service). It sure would make things a lot simpler and improve the through put of the dealers who are already strained because of the limited number of available diesel mechanics.
Used
2019 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Excellent customer service!
Excellent customer service!! They help me find the perfect car for me, and kept me within my budget!! Friendly staff and beautiful showroom!! Two thumbs way up!! A shout out to Mike Medina the GM who really helped make this purchase smooth and quick! I will be recommending Elgin Auto Sales to all my friends and family!
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!
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great staff and very good deals on new vehicles.
Great staff and very good deals on new vehicles. Quick, friendly and very helpful. I would recommend if your looking for a great deal check with these guys first. They will get you that Great deal others can't.
new owner of the gmc denali, 2018 6.2
handles and drives great, the electronics don't always work, mirrors don't always work, spray with wd 40, check engine light, EVAP culprit, auto nation has no luck with this, will drive it till the warrenty expires and its back to ford for me
Used
2024 GMC Acadia Elevation
Vehicle information
Features
Reviews
On Nov 25, 2025 I met some AWESOME PROFESSIONAL salesman.
On Nov 25, 2025 I met some AWESOME PROFESSIONAL salesman. I went to Kunes to help my Goddaughter buy her first car. I was approached with a warm greeting. Told Dylan Gentzen exactly what we were looking for. He listened to what WE were saying and not just eagerly trying to make a “sale” Not only did Dylan listen, he came thru for her!! KUDDOS! Thanks for giving my Goddaughter a chance when others didn’t. I typically DO NOT write reviews, but I have to applaud Kunes and Dylan. THANK YOU ALL! If you need, looking, curious about getting a car, stop at Kunes and ask for Dylan…
great styling and interior.
great styling and interior. nice features and acceptable performance. overall my Denali is a superior product to similar vehicles. I would recommend this GMC Acadia.
Vehicle information
Features
Reviews
Eduardo gave me an amazing service at the dealership and
Eduardo gave me an amazing service at the dealership and helped me find a car.
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.
GMC Certified
2023 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
My salesman Esad was great.
My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.
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!
GMC Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I have brought my vehicle in for every oil change I have
I have brought my vehicle in for every oil change I have needed. Always courteous and professional, my car gets a diagnostic check every time and is freshly washed. I like that the Service Department send out coupons, and making an appointment is easy online or with a phone call.
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
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Frank was friendly and helpful.
Frank was friendly and helpful. He look up my records to make sure I was not receiving and paying for unnecessary service. He provided a coupon.
Like the truck but also disappointed
Got the duramax diesel and getting 24 city and 32 highway is very good. Truck drives nice and is very comfortable. My 2 issues with this truck is the backup camera at night is useless (very dark) and interior lighting is not very good. You would have thought a 78k truck would have footwell lights, but it doesn’t.
Used
2018 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
But a very nice Nissan Sentra from them I was looking
But a very nice Nissan Sentra from them I was looking around and found out that they have very good prices and the quality is good too so thank you Andrei for helping me out!
best in class
My GMC Sierra is the best ride I have had in all the years that I have been driving. I started driving in 1977. I love my new Sierra.
Used
2025 GMC Terrain AWD Elevation
Vehicle information
Features
Reviews
Perfect for a couple.
Perfect for a couple. Plenty of room and should be good for trips. Room for another couple when going out for fun. Ride is very nice and has a lot of safety features.
*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 $899,990 by city
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GMC under $899,990 in Union, IL
128 Great Deals out of 459 listings starting at $4,995
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GMC under $899,990 in Marengo, IL
96 Great Deals out of 379 listings starting at $4,995
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GMC under $899,990 in Huntley, IL
150 Great Deals out of 558 listings starting at $4,995
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GMC under $899,990 in Lakewood, IL
151 Great Deals out of 549 listings starting at $2,999
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GMC under $899,990 in Woodstock, IL
161 Great Deals out of 570 listings starting at $2,999
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GMC under $899,990 in Hampshire, IL
132 Great Deals out of 505 listings starting at $4,995
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GMC under $899,990 in Lake in the Hills, IL
178 Great Deals out of 652 listings starting at $2,999
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GMC under $899,990 in Crystal Lake, IL
164 Great Deals out of 610 listings starting at $2,999
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GMC under $899,990 in Bull Valley, IL
167 Great Deals out of 602 listings starting at $2,999
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GMC under $899,990 in Pingree Grove, IL
172 Great Deals out of 665 listings starting at $4,995
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GMC under $899,990 in Gilberts, IL
200 Great Deals out of 767 listings starting at $4,995
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GMC under $899,990 in Genoa, IL
76 Great Deals out of 310 listings starting at $4,995
GMC under $899,990 in Union, IL by model
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GMC Sierra 1500 under $899,990 in Union, IL
25 Great Deals out of 118 listings starting at $8,850
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GMC Acadia under $899,990 in Union, IL
35 Great Deals out of 85 listings starting at $6,299
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GMC Terrain under $899,990 in Union, IL
31 Great Deals out of 84 listings starting at $4,995
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GMC Sierra 2500 under $899,990 in Union, IL
13 Great Deals out of 46 listings starting at $7,995
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GMC Yukon under $899,990 in Union, IL
3 Great Deals out of 42 listings starting at $14,777
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GMC Yukon XL under $899,990 in Union, IL
4 Great Deals out of 32 listings starting at $9,000
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GMC Sierra 3500 under $899,990 in Union, IL
6 Great Deals out of 25 listings starting at $6,950
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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.
