Used 2021 GMC Sierra 1500 trucks for sale near Forest Park, IL

Big thanks to our salesman Brian for excellent service. Very through and he,Paul in finding the right vehicle for us. Prompt courteous service. A very satisfied customer. Highly recommend Woody and ask for Brian.

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.

All my concerns were addressed. I had an issue with my speakers turns out it was my phone settings. After I identify the issue and having left the dealership, I received a phone call from the service rep, showing me how to adjust my settings. He went above and beyond!

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...

Honest and caring service went the extra mile to secure my warranty which had just expired.I have been doing business with Advantage of Bolingbrook for over 30 years

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.

My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.

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.

I just bought my 2017 corvette grand sport two weeks ago. I flew in from New York. I can’t say enough good things about the process. We worked with Armin, he was top notch. He made every aspect about buying this car seamless and easy. He even arranged an Uber to pick me up from the airport to bring me right to the dealership. We just adore our new car. It’s perfect!! A million thanks 🙂 Joe and Denise

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!

From the time I walked into the establishment I was greeted and treated with respect. I love how the salesman was knowledgeable about the exact vehicle I came in for. He went above and beyond and through every obstacle that possible came my way. This car purchase was an early birthday gift to myself and I am so happy with my decisions.

Bought 3 work trucks. Good price, no nonsense or upsell. 2 months have gone by and I am very happy so far. The amount of trucks they have is beyond belief.

Chuck Was Amazing!!! I Have Had Some Trouble With Credit In The Past Chuck Got Me A Great Rate And Perfect Payment Dealership Is Wonderful Too Not Your Typical Used Car Lot Very Clean And Modern And There Cars And Trucks Are Very Clean

Great job in and out. IT'S been a good experience so I will let people know.

Great place to buy a vehicle. The staff is very friendly and the process was very easy

World Kia went out if their way to make me and my family comfortable, inside the deal and out. we couldn’t be happier with our new vehicle

Amazing as always! Paul and his team always take care of me and the process is efficient.

Excellent service Professional service Quick service Polite customer service Excellent customer communication Very detailed repairs

Mike R was amazing. He even traveled to Chicago to bring our car to a different locations so we could see it. I would highly recommend this location.

Eva and the team at Castle cars of Naperville we great! In and out, the team was friendly and very attentive to my questions and needs. Highly recommend!

Our experience at Phillips has always been a great one. This is our second purchase with them and will likely come back for any future car purchases. Jaime was great to work with and answering all our questions and willing to get the answers to questions he was not able to answer. We are vey pleased with our purchase and the great service we recieved.

I recently purchased a 2026 GMC 2500 Denali, and it has exceeded all my expectations. The truck is powerful, smooth, and built for both work and comfort. The luxury interior, advanced technology, and attention to detail make every drive enjoyable. Towing capacity and performance are top-notch—perfect for heavy-duty needs without sacrificing style. A huge thank you to Tony Gullette, who was an outstanding sales professional. Tony made the entire process easy and stress-free, providing clear answers, honest advice, and exceptional customer service. They went above and beyond to ensure I got the best deal and left completely satisfied. If you’re in the market for a premium truck, I highly recommend the GMC 2500 Denali and working with Tony. You won’t be disappointed!

The guys here were great! Had the truck pulled out and ready for us to test out. We came from out of town and they kept our kids entertained while doing all the paperwork. It was a quick, hassle free process. True mom and pop shop and they treat you as such. Thank you so much.

I recently sold my 2014 Corvette Z51 to Diamond Motorwork, and the experience was outstanding from start to finish. I worked with Luke, who was incredibly kind, patient, and professional. He made the entire process seamless — even going out of his way to meet me at my workplace to pick up the car and finalize paperwork. His flexibility and attention to detail made it easy to choose Diamond over other offers. The price was fair, their reputation solid, and they took the time to ensure I was comfortable with every step. I especially appreciated how Luke worked around my schedule and kept everything stress-free. The owner, Rami, was also very attentive. While Luke handled things so smoothly that Rami didn’t need to step in much, he was present and supportive throughout — especially when I requested a wire transfer instead of a check. That extra layer of reassurance gave me real peace of mind. If buying from Diamond is anything like selling to them, I’ll be stopping in there first when it’s time for my next car. Highly recommend Diamond Motorwork for anyone looking for a trustworthy, respectful, and hassle-free automotive experience.

Efren my service advisor was very helpful and efficient he took care of everything for me