Used GMC cars for sale near Denver, CO under $20,000

Thank you Josh for coming to my house and replacing my windshield. On time and under and hour. Great work and much appreciated.

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.

Always a pleasure to get my truck serviced at Mike maroone Chevrolet, gmc, Longmont. Joe was my service advisor and got my truck in and serviced a lot faster then i expected. Service was an awesome. Thank yous

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.

Initially I dealt with Dan, the owner, over the internet. Then I dealt with Steve at Castle Rock, then Martin at Parker. They were kind, caring, and helpful. Honestly, Dan may be the best communicator I've ever dealt with. He always responded immediately, I was mostly impressed with his immediate and accurate responses. I bought a 2017 F350 and I feel I got a great deal and was well taken care of. Thank you Berkenkotter Motors Tomm Olsen Michigan

Just trade in my 2015 GMC Denali with 140000 miles on it and still holding strong at trade in best SUV I ever had upgraded to the new 2021 Denali and boy do I love this SUV from comfort to outside design just an amazing new well designed SUV.

We have owned our GMC Sierra 1500 for approximately 9 years now. The only real disappointment with the vehicle is that we had to have a full transmission replacement Just after the 100k mile without any warning whatsoever. The truck now has 107k miles on it and now , again out of nowhere, we are experiencing slipping in the trans and the engine light is now flashing. Very disappointing since we are starting to feel uncertain about the reliability of the vehicle now. The truck itself is gorgeous and shows ZERO signs of its age, sporting new rims and tires and a lifted body and no rust on the body at all. We hope there are no major issues with the engine as the vehicle has always been maintained as needed and on time for regular servicing at the dealership.

This truck is amazing, the design of the interior and exterior, the ride quality, the leg room( for a 6’3 1/2 person), it’s just absolutely outstanding. Would definitely recommend for a first truck

Worked with the team over at Urban Motors Red store, the sales team helped get me into my dream Toyota RAV4. Very comfortable and transparent experience, thank you!

I have an 04' Denali with the 6.0 engine. I'm at mile 399,00 and still going. Only complaint is some electrical issues but nothing too major. Definitely the most reliable engine I have ever driven.

The salesman was very helpful and went out of the way to help me on this deal. I greatly appreciate his help. I would buy another vehicle from this location and not hesitate to recommend people their way. Again I thank Luis and the people at this location. Keep up the good work!

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.

Jillian was very responsive and worked hard to be fair and do her job well. Jillian is great! Our only annoyance was the long wait to pick up the car , which is minor in the scheme of things. Thank you Schomp & Jillian.

Just the right size for 2 adults, a child, two large dogs and two large ice chests to head to the boat with all our equipment and food. Hated to see them downsize it in '17. It has had few maintenance issues and they have been reasonable in cost. It has kept it's value over the years.

Jon A was a gem to work with. He bent over backwards to find deal/price that suited me. He drove my car home that evening, so I didn’t have to find someone who could meet me at the lot later in the week. He researched and finally bought a charging cord for my new, leased EV (didn’t COME with a cord!! What’s up with that, Kia??). Couldn’t have been nicer and more helpful.

I love my 2018 GMC Acadia just wished windows were tinted and had a tv for kids and grandkids overall I have had this truck for 2 years and I Love it and use it for family drives cuz of how much room it has I have even used it for work meetings and we all travel to the meeting together .

Was looking for a 2025 GMC Acadia Denali. Went to AutoNation and was met by Caden Noar. He was fantastic! Showed us the Acadia he had on the lot, gave us a test ride and answered all our questions. Not once, did he pressure us to buy but was more interested in answering our questions. After the test drive, we noticed a Buick Enclave Avenir in the lot as we were exiting the dealership. Liked the car looks and went back into the dealership to see if Caden was available to show us the car. We knew nothing about the car. He came out, gave us a test drive, answered our questions and then asked us if we would like to see another feature of the car, so out we went for another drive. Again, no pressure to buy and we parted. Over the weekend, we decided we really loved the car and called Caden on Monday to see if we could discuss the price and terms. Bottom line, we bought the car at the price we wanted. Outstanding service from Caden to the Sales Manager to the Contract/Finance Team!

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.

I am so grateful to have found Schomp! My car was totaled recently and, being a young woman who knows nothing about cars, I was BEYOND overwhelmed at the idea of buying another. I visited a few other dealerships, but I didn't like how "cornered" the sales teams made me feel. Schomp is SO different. I had the pleasure of working with Jacob at Schomp Honda in Highlands Ranch, and he was incredibly patient and kind while assisting me through the entire process, which meant SO MUCH considering how overwhelmed I was. I never once felt like he was trying to pressure me toward any particular vehicle or that I was being swindled to pay more, because that's not how Schomp works. It was clear to me that Jacob (as well as the rest of the team) wanted me to feel comfortable in a car I really liked, and he literally went out of his way to help me find it. Thank you so much, Jacob! Shout-out to Hayes, David Cole, and James as well. The people here are genuine, honest, and trustworthy which were major factors for me in letting them help me find my new car. This place greatly exceeded my expectations. The vibes are immaculate. Love you guys.

I've owned my 2015 Acadia Denali since 74900 miles were on it and it drives great! I hear things on its quality but in my experience it's been a joy to own.

We had a fantastic experience at AutoNation Subaru Arapahoe. We were just starting our car search when we decided to stop at Subaru out of curiosity. Even though we had never owned a Subaru before, Bryan helped us figure out that the Forester was the perfect choice for us. We drove away with our 2025 Forester that day and haven't regretted it! We experienced excellent service by Bryan and Zachary (LoveSubaru).

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.....

I had such a great experience at this place! I was helped from start to finish! I was welcomed and Tyler was a HUGE HELP! The atmosphere is welcoming and I never felt so happy buying a car!

Bought a demo car . The Acadia has been great . Wife’s car . She likes it . Roomy and good gas mileage . Would also make a great road trip vehicle if I didn’t have a full size Ram .

Had a great experience with the service advisor, Eric on 8-27-25. Had a some questions for an app't the following day. Arrived at 5:00 and not only did Eric, the service advisor, save me a couple of hundred dollars, but was able to get the recommended service completed in a half hour without having an app't. I have not always had great experiences but this made up for the lack of attentiveness in the past. Have been a customer since 1990 and will continue to have Planet Honda in Golden to service my 2018 CRV Honda.

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

Schomp Mazda was very responsive and attentive to my inquiries. The entire experience was gratifying.

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

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!!

Great Company, had exactly what I was looking for would recommend! Fast, friendly, and professional.

I purchased my 2016 GMC Terrain SLT in 2018 as a gently used vehicle with only 21,000 miles on it. I never had issues with it. I kept it regularly serviced and had to replace tires. At now over 93,000 it has been a comfortable and very reliable car. The only feature I wished it had was rear air conditioning. Living here in the SE it gets hot and it takes a “minute” to get the back of the vehicle cooled down. However, I rarely have back seat passengers, and thankfully, the really hot weather lasts only a few months! I have been very pleased with this car and would recommend it to others. I traded it in a week ago for a larger car only because I need the room for a grandchild, and my elderly parents.

Great experience Diana helped me out a lot had an easy first time buyer experience drove of with what I wanted thank you Diana and Ethio Motors.

I just purchased a 2018 Acadia and I’ve been having oil pan issues. I took it back to open road in New Jersey where I purchased it for a high price repair and am still having issues

The whole experience, was fantastic. Shawn made it fast and easy. I have found a new place to do future business with . I highly recommend them

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.

Sergio was very helpful! Good cars at good prices. Would definitely recommend buying a truck here.

Have had lots of problems with the wheel sensors. New tires and new sensors and still have the same issue. Shows tire low and it is not. Just car not even two years the air conditioning would not blow out cold air. The compressor in the back went out, need to be replaced. Side car waring lights come on sometimes even though no car anywhere near me. Fold in mirrors are a joke the driver side comes in and out, however the passenger side sticks. Dealer said yeah that happens. This car is garage kept!