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Used
GMC Sierra 2500 trucks
for sale
near
Thornton, CO
- 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.






Certified
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
Bought a used 2018 F150
Sherry was easy to work with and made buying my truck hassle free. I would recommend this team to anyone.
One very awesome vehicle.
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.






Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
Great service, Adam at the service Deparment was very
Great service, Adam at the service Deparment was very profecional explaining everything to me quick response to get the truck schedulefor service. very satisfied with auto nation broadway.
Best truck I have owned
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.






Used
2023 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Had a great experience trading in my 4runner and getting
Had a great experience trading in my 4runner and getting a new tundra with Chris Williams yesterday! Couldn’t have made the process easier from start to finish and appreciate them staying late for us.






Used
2022 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
I had the recent pleasure of working with Kayla on the
I had the recent pleasure of working with Kayla on the purchase of my 2nd truck from Prestige, and she was amazing. Made the buying experience great, which is not usually the case at a dealership. I would recommend going in and working with her to anyone looking for a new car. Thoughtful, honest, nice! Thank you Kayla!
Great Truck
I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Angel R was great.
Angel R was great. It was a smooth process. Would recommend dealer and the dealership
Beautiful truck
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!






Used
2017 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Maya was very helpful and she did everything that she
Maya was very helpful and she did everything that she said she would do before I bought the car really like this dealership everyone was so helpful
Best Truck I ever owned!
This truck is everything I wanted! GMC, 4x4, Lifted, Low milage. It's going to be great for my hunting and 4 wheeling! I love it!






Used
2020 GMC Sierra 2500 Denali
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Reviews
I purchased my vehicle through Sill-Terhar Lincoln -
I purchased my vehicle through Sill-Terhar Lincoln - Broomfield CO and had an amazing experience working with Anthony and Kelly. This was my first time purchasing a vehicle out of state which was very nerve wracking. Anthony was my eyes and ears throughout the entire process. He was sending me videos of the vehicle and keeping me up to date on the big things. Kelly was absolutely wonderful. With a two-hour time difference, he was still answering my calls and/or text immediately every step of the way! They are a phenomenal team and were a pleasure to do business with. The paperwork and transportation were seamless, and they held my hand throughout the entire process. Huge Thank you to them!
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
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Foundation Cadillac did it again—and honestly, I’m not
Foundation Cadillac did it again—and honestly, I’m not surprised! When my 12V battery died on my Cadillac Lyriq, David Hann and his incredible team jumped into action. They did whatever it took to get me back on the road quickly and stress-free. David is truly amazing—always professional, caring, and reliable. If you’re ever in need of service, repairs, or even looking to make a purchase, go to Foundation Cadillac and ask for David. You’ll be in great hands!
Best truck I ever owned
Love my GMC. Owned a Chevy and this absolutely beats it hands down. Never had any issues. Inside is very comfortable and can't imagine driving anything else






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Thanks for your service James Hooker.
Thanks for your service James Hooker. Nice conversation about the sport of Parkour. I've never heard about that before. One word, two words, 25 words.






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Carlos at Super Auto was professional, patient, and easy
Carlos at Super Auto was professional, patient, and easy to work with. He addressed my concerns and showed me several cars without being pushy. I appreciated his approach.
GMC 2500 HD AT4
This is the first diesel I have owned. The power is amazing and I really like the room inside the cab. This truck is a beast... Love it!






Used
2016 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Everyone at this dealership is a class act!
Everyone at this dealership is a class act! Great service. Ask for Ed Rivas to be your lead salesman. He will treat you right and take care of your needs. Extremely knowledgeable and responsive!
a great Truck
I've owned my truck for nine years now it is never once let me down. I'm about to put my first set a tires on it and brakes other than that I don't plan on getting rid of it it's never let me down and after reading all the other reviews it makes me realize they don't make them like they used to as they used too!






Used
2021 GMC Sierra 2500 AT4
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Reviews
Always a pleasure to get my truck serviced at Mike
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
Never had one. Always wanted one and love it.
I love my Denali. Beautiful truck inside out. When I drive down the road all heads turn. I couldn't have made a better choice. That's Cortez for you good service.






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
I love this dealership way way underpriced best quality
I love this dealership way way underpriced best quality awesome selection even better staff it's funny even the reception is unlike other dealerships the reception is for this dealership actually had car knowledge which was very exciting because if the receptionist knew what was going on with automobiles I could only imagine how great this whole sales team is again thanks for making everything so streamlined






Used
2023 GMC Sierra 2500 Denali
Vehicle information
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Reviews
Rafael H was very attentive to what we were looking for
Rafael H was very attentive to what we were looking for in a clean used diesel p up . His assistance in our purchase with our purchase was very good . professional, not pushy Gerald & Kay Schreiber






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Professional from the start and they were not as much
Professional from the start and they were not as much pressure as so many other dealers.






Used
2022 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Service was quicker than promised.
Service was quicker than promised. Waiting room was well equipped with snacks and coffee. Service adviser answered all my questions concerning engine recalls. I felt more comfortable knowing my Tahoe is not having problems.
Great Truck (sans MPG)
Love everything about this Duramax Denali except the fuel mileage. 13-14 Mpg tops when not towing. Bought truck cause previous was stolen. Wish I still had my 6.2 High Country!






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Yamile was knowledgeable, professional, empathetic and a
Yamile was knowledgeable, professional, empathetic and a terrific asset for you. She is a keeper!!! I could not be more pleased with the service she provided.
Early to tell truck has less than 100 miles
Truck was bought specifically to our travel trailer. We have to wait for 1000 break in before we can tow the trailer. So far the truck is very quiet, smooth running, & comfortable to drive. We were pleasantly surprised at how much interior storage space is available. Having the bed steps before rear tires and in the bumper sides is very nice. Bed rails are even with my shoulders so the steps get used a lot.






Used
2020 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Amazing customer service in service department
Bought my vehicle from Golden, CO Carmax and didn't have any support for mechanical issues. Still purchased the vehicle because it is what I wanted. Ashley from sales in Golden was the worst! I ended up closing the deal with Cora who was amazing and clearly the exception to the rule in Golden. When I told Ashley there were issues with the brakes she was rude and didn't take me seriously. I ended up working with the Federal Heights dealership on repairs. Debbie in the service department took this on and was soooo amazing! She took care of everything and I am so greatful! The technican at this location was amazing as well (I forget his name unfortunately)! It is really a shame that I had to go to another location to get service, but I am so glad that I did. Outstanding job Federal Heights location!
Best truck I've owned yet
What a gorgeous truck, runs good, sounds good and has all of the amenities I need although I am looking forward to their next interior upgrade.






Used
2024 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Seamless experience
Amazing experience .super patient and no hassle team, completely transparent Charles and Rick took good care of us! I would go back there again with my next purchase






Used
2021 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
The best experience I’ve ever had in purchasing a car!
The best experience I’ve ever had in purchasing a car! Dan gave us an incredible deal, and Chris was amazing to work with. I highly recommend Lyn Lyall Chevrolet!
GMC Sierra 2500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 2500 | $58,284 | |
2025 GMC Sierra 2500 | $51,430 | |
2024 GMC Sierra 2500 | $49,966 | 13 Good deals |
2022 GMC Sierra 2500 | $33,988 | 13 Good deals |
2021 GMC Sierra 2500 | $39,988 | 10 Good deals |
About the GMC Sierra 2500
How much does the GMC Sierra 2500 cost?
The GMC Sierra 2500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for the Sierra 2500 is $55,817, with pricing starting at $4,500.
What are some similar vehicles and competitors of the GMC Sierra 2500?
The GMC Sierra 2500 compares to and/or competes against the following vehicles:
What trim levels are available for the GMC Sierra 2500?
The GMC Sierra 2500 is available in the following trim levels:
What model years are available for the GMC Sierra 2500?
Available model years for GMC Sierra 2500 inventory range from 2002 to 2026.
*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 Sierra 2500 by price
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Used GMC Sierra 2500 by city
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GMC Sierra 2500 in Broomfield, CO
12 Great Deals out of 84 listings starting at $12,000
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GMC Sierra 2500 in Commerce City, CO
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GMC Sierra 2500 by trim
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GMC Sierra 2500 Denali
2 Great Deals out of 29 listings starting at $26,400
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GMC Sierra 2500 AT4
2 Great Deals out of 20 listings starting at $50,441
Used GMC Sierra 2500 by body style
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
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.