Used GMC trucks for sale near Flanagan, IL

My 2020 G4 hadn't been serviced for several years. I live in Florida, busy working all the time. I was visiting my Family in Illinois so we brought my car in for an overhaul. Got a set of 4 new tires, oil change, brake fluid change, the works. My car drives like it's BRAND NEW again, all thanks to Andrew & the ENTIRE staff at O'Brien in Bloomington, Illinois. They even got rid of a sporadic noise my car made when backing up. A Real Miracle. Thanks O'Brien! : )

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 !

I work with Chris the sales manager and he was real professional sold me a Cadillac Escalade the truck was in great condition treating me like family

Great truck to own. The 2023 GMC Sierra Denali with the 6.2L engine delivers excellent power, smooth performance, and a refined driving experience. The ride quality, interior comfort, and overall build quality are outstanding. I have had no issues whatsoever, and it has been a reliable, enjoyable vehicle from day one. I would highly recommend it to anyone looking for a premium full-size truck.

The staff is highly cooperative and welcoming; I will be back! Thanks again for my new vehicle.

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

Sam Leman Ford was great to do business with. I found the ideal used Truck there after a multi-month online search. I was cautious about making a big purchase relying only on pictures and online/telephone communications as the dealer location is 500+ miles from my location. The entire team at Sam Leman was very easy to work with remotely and Frank (my primary contact) was always available at every step of the process. The transaction was completed online and the vehicle shipped to my home. I was delighted when I saw it for the first time as it came off the truck. I have to say it exceeded my expectations for a used vehicle. I have been driving it for a week now and am still completely satisfied. I would recommend the Sam Leman team to anyone.

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

I?ve bought vehicles from other dealerships with poor experiences. So I stop buying vehicles from dealers and work on my own for about 20 years. Driscoll motors repaired my truck exactly the way I would?ve done it myself. I value that !!

2024 GMC sierra 1500 duramax 3.0 is great truck. Great ride and great MPG. 100% recommend to any prospective buyer. Love the truck and how it perform.

First time dealing with Heller Motors and everything went well. I would recommend visiting this dealership in Pontiac, Illinois.

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.

They are called the "Good Guys" for a reason. Fantastic experience at Barker Chevrolet in Lexington. Travis was our salesman and he and the entire staff worked to help us get the best deal possible and the best overall customer experience possible. Best sales experience I've ever had at a dealership, by far. If you're in the market for a car, keep these guys high on your list. Highly recommend.

Looked at more expensive truck with less options, bought the GMC SIERRA AT4 Turbo Diesel 6. I now only put fuel im once a month. And long distance trips are easier due to better fuel economy. One of my best investments ever.

We found our vehicle on line and messaged about it. We were told it was sold, However, the next day we got a call from Hunter stating that it was in fact, not sold and to come as soon as we could. He had the vehicle warmed up for us and ready to take on a test drive. Cory Who is the sales manager was also wonderful to work with. Holly and their finance department is an amazing person. I would recommend anybody who needs a car to go to Heller. When you buy from them, it’s like you’re buying from family.

Let me start by saying I have the AT4 model with the Duramax 3.0L diesel. I had a 2024 Elevation with the 5.3L V-8 that I bought to pull my 22’ camper. While the Elevation pulled my camper fine it drank the gas like it was on a binge. And with a 26 gallon gas tank it seemed I was filling up every couple of hours. After one trip to Nova Scotia I knew something had to change. I pulled my camper out west to Yellowstone and back through Arizona. It pulled like a champ and fillups were a lot more manageable. Even driving the speed limit out west I still got four to five mpg better than with the gasser. I liked the Elevation but I love the AT4. Way nicer ride and great handling. I get 30 per gallon of diesel on the highway if I drive the speed limit but I got it to tow with. I added a Titian replacement fuel tank so I have 43 gallons instead of the 26 it came with.

We recently purchased a used Jeep Wagoneer from Heller Ford in El Paso, IL, and the entire experience was nothing short of fantastic. Huge shoutout to our salesperson Onie Maisonneuve, who went above and beyond from start to finish. We live about an hour and a half away, but Onie made the process incredibly easy by handling everything over the phone ahead of time. By the time we arrived, all that was left was a quick test drive and a bit of paperwork—start to finish, we were in and out of the dealership in around 30 minutes! A couple of days after taking the vehicle home, a mechanical issue popped up. Onie was immediately responsive and had a loaner vehicle arranged and delivered to us the very next day. The service department didn’t miss a beat either—they had the necessary repairs completed quickly and efficiently, making sure we had our Wagoneer back just in time for a planned family vacation. I can’t recommend Heller Ford highly enough. If you’re looking for a dealership that truly stands behind their vehicles and values customer service, look no further. Ask for Onie—he’s the real deal!

First time car buying experience with no actual (good or bad) credit , needed to start. Nice, smart not obnoxious sales, team who found better than what we thought we wanted and helped us with financial decisions and we left very happy & satisfied with our car thanks to our team ?Cade & Sweetie ?

Have a 19 4x4 SLT Short Box. Lifted 4" w/ 20" rims and decent all purpose tires. With the relatively short wheelbase and the slight lift, I've never had a 4WD that handles everything so easily, including the worst mountain trails. Have owned for 3 years now and have not had any problem other than a dead battery. The interior is average, but in a utility/4WD that gets mud, dog fur and camping fallout, who cares. My prior SUV was an 04 Avalanche 4x4. Cool truck but bad gas mileage and impossible to park in tight city lots. The Canyon is perfect size, easy to handle and with a couple minor mods pushes 350 hp.

I did not end up purchasing a car with this dealership however I did not because of the honesty of the dealership. The dealer fully disclosed prior damage the vehicle had and the repairs. It was my decision to not purchase because of the damage.

One very awesome vehicle. Checks all the boxes you need in a truck and exceeds expectations on quality, performance, and looks great ,too. Love my nre truck.

Hello, how are you all doing today? I would like to say that it was a pleasure calling this Heller Motors dealership today, 10/17/2025, specifically because of Mr. Don, who didn’t hide any information from me and was 100% honest with me the entire time. It is an honor to work with such a kind and honest Heller Motors dealership, and I would like to give my thanks to Mr. Don for helping me out a ton. I did not purchase the truck yet, but I will, but I have to say this about this dealership and Mr. Don

I've owned every other American truck and this is my first GMC. I bought the 2500 HD Texas Edition. I absolutely love this truck. It's everything I could have hoped for and more. It is able to pull my 30' travel trailer with no problems. So now when we go out with our trailer I'll have no worries. The look and feel of the truck is outstanding. The 6.6L gas engine actually gets great gas mileage. It gets about the same as my Ford f150 ecoboost. Probably better on the highway. Looking at about 13 miles in the city and 15 plus on the highway. Definitely got a better truck for the price compared to any other american models with the same characteristic and options.

Tom Smith did a great job assisting my wife and me with our new vehicle purchase. We found a vehicle with the right option we were looking for. Good experience!

This review is for a two week old truck. I have been trying to get a 3500HD AT4, gas engine, 8 foot bed, 5th wheel prep, in blue for over a year (almost 2). My dealer finally received an allocation and I was off for the build!! However, when my build order was sent to me the color had defaulted to black (blue was discontinued for 2024) and the only way to change it was to cancel and start over.....so black it is!! The truck is gorgeous and much larger than I thought! I am pleased with both exterior styling and the 2024 interior refesh. My only complaint is the seats, they are a bit firm.....still comfy....but firm. The GM sunroof is small, so small I passed on the option. Mechanically this truck is a pretty sound design. Another 50hp for the 6.6L gas engine would be nice, but 401hp is pretty decent. A PTO offering in the up level trims would be nice, as would a larger/dual fuel tank option is needed (GM is the only one that doesn't offer one), and a factory level in the front, and while I am dreaming a front locking differential. GM could up thier paint game, when approaching 90k I expect better paint. Value wise it is as good if not better than the rest of the over priced trucks on the market. Rumor is 20K per unit on average goes to the UAW pension, that's why your 50k truck costs 70k. In closing I have zero regrets other than the color, but I needed it immediately so here I am.

Just took delivery of my 2023 Silverado last week and the buying experience could not have been better. So much more laid back than the high pressure tactics seen at other (bigger) dealers. Terry and Steve were very helpful, friendly and knowledgeable. Highly recommended!

Has a really Big feel to it. I currently use mine to pull gooseneck trailer. I haven't had a load yet that I couldn't pull. The downsides to this truck is to me I feel it could get better fuel mileage. Also I had trouble with #4 injector...dealership replaced it. Now my AC doesn't work all the time. Although it sounds like it's blowing it isn't.

I wouldn't go anywhere else ! Sales , finance and service are the best for miles around .

Easy to work with and I got a great deal. Thank you again Mounce team

I have loved and owned Chevy and GMC midsized trucks since 98 when I purchased a used S-10. My latest purchase is a 2021 GMC Canyon Denali bought brand new. It's been a great truck until my power steering unit went out due to corrosion. It only has 32,200 miles on it and I have never gotten it wet other than car washes and driving in the rain which is normal conditions. I had purchased a mid grade extended warranty through GMC after my lease was up and purchased the truck. I am being told this is NOT covered due to it being external wiring. So I feel this is a manufacturing malfunction and bad engineering for water to be able to get in to cause such corrosion so beware. This is an open case filed with GM currently to hopefully rectify the matter.

Very quick and easy process! The entire team was awesome to work with. I will definitely be back!

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.

Always my go to dealer . Have been dealing there since 1988. Would never think of going anywhere else. Always a fair deal and a great service.

I bought my gmc canyon used with 29,300 miles on the odometer. It has the 2.8 ltr I-4 turbo diesel engine. I'm towing a 5,000 lb travel coach. First thousand miles was today. The small engine gets for me astounding fuel milage. Towing the coach i averaged 22. 8 mpg on a trip to the Eastern Sierras. 368 ft lbs of torque is more than enough to haul the trailer to 10,000 + ft elevation. Just be patient and use the torque to tow up a mountain. The fit and finish is excellent, the blue metallic paint turns heads. After 3 yrs a good waxing had it looking showroom new. This is my first gmc ever. If it holds up and runs 300,000 miles like the sales rep stated it's capable of doing. I'll let you know. The one down side is the emissions on the engine can cause reliability issues. Advice i found on a forum says use a good quality injection cleaner in every fill up . Every fill up for the life of the truck. They are capable 300,000 and higher if we'll cared for.

Great people. Todd so professional & nice to speak with. They like to work with customers and make it happen.

Mr Heller and his sales staff and financial staff are top notch. My salesman was Ian. Fast and easy no xx and no pushy attitude. Knowledgeable in their inventory and allowed me to take my time. I signed all documentation online and they delivered the truck to me. Outstanding service.

I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!