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Used
GMC Sierra 1500 trucks
for sale
near
Boulder, 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.
Vehicle information
Features
Reviews
A Big thanks to Santanna, the woman that did the sales.
A Big thanks to Santanna, the woman that did the sales. Jefry the manager. Also, a thanks to Gaby and Adriyanna. There is no other place to buy a car than Omeara ford, because of this awesome team! God Bless u and thank you.
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.
Used
2023 GMC Sierra 1500 Denali
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Reviews
Enjoyed Kelly and Rob Ash - Mr Ash did a nice job
Enjoyed Kelly and Rob Ash - Mr Ash did a nice job explaining the features of the carf Everyone was nice and low pressure. Requiring 25 words in this review is the worst part of the whole experience lol...
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!
Used
2023 GMC Sierra 1500 Elevation
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Reviews
Austin was a great help through the whole process and
Austin was a great help through the whole process and made everything run fluid and smooth. Treated my car like it was his own or a car he was buying. It was almost like he was buying it with me.
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
2023 GMC Sierra 1500 Denali Ultimate
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Reviews
Julia Vargas was very helpful and kind as well!
Julia Vargas was very helpful and kind as well! She also seemed very knowledgeable and we appreciate her service very much!
"THE" GMC Truck!
I have a 2023 GMC Sierra 1500 Denali with the 3.0 Diesel engine. I have 20,000 miles on it at the time of writing this. Never owned a diesel before and now i don't think i will own another one without it. I LOVE the engine in this truck. Only complaint would be that it likes DEF fluid while towing so pick up some extra DEF before you head out to tow something. Put about 8K miles on it this summer without adding any DEF fluid. seems to use a little more in the winter or when towing. Very quiet for a deisel and the fuel economy is awesome. Driving 70 mph down the freeway this truck gets about 30mpg, Drive 55mph on regular highways and this truck gets almost 40mpg. All around driving for me is about 26mpg. I used to fill up twice a week with my gas motor and now only once a week. Wireless Apple Carplay works great and the voice texting and mapping is a big plus. I also have the new SuperCruise feature which is awesome. Get on the freeway and set the supercruise on and the truck drives itself until i get to my exit (about 28 miles from home to work). Bose stereo is out of this world and all the storage is great to. I have a swingout bed toolbox, aluminum roll up tonneau cover, Lighted black GMC front emblem, Gloss Black 22" wheels, All Black decals and my dual exhaust bezels are black as well. I rotate the tires and change the oil every 5,000 miles. Couldn't ask for a better truck. Might get the ultimate next time as that has the messaging seats which i kinda wish I had.
Used
2014 GMC Sierra 1500 SLE
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Reviews
Ryan, Jarret and Heidi always take excellent care of us
Ryan, Jarret and Heidi always take excellent care of us each time when we visit for a service, with both of our vehicles. We do Mike Huffman, he was our salesperson
Great truck, solid engine, comfortable, smooth, and it
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.
Used
2018 GMC Sierra 1500 Denali
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Reviews
Kevin took care of me on time and courtesy didn?
Kevin took care of me on time and courtesy didn?t try to sell me stuff I didn?t need and kept the estimate within perimeters
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
2021 GMC Sierra 1500 SLE
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Reviews
Hayden was patient and helpful.
Hayden was patient and helpful. We appreciated his willingness to help us with purchasing a new car! Thank you
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
2024 GMC Sierra 1500 SLT
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Reviews
Very good experience with O’meara VW buying a nice used
Very good experience with O’meara VW buying a nice used Jetta. Quick fast deal without the usual back and forth time consuming runaround. Friendly courtesy call a couple days after to check on us. Thanks Karson, Elva and sales manager Steve. 👍👍
Great truck to own.
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.
GMC Certified
2024 GMC Sierra 1500 AT4
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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!
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
2019 GMC Sierra 1500 Denali
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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!
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
2021 GMC Sierra 1500 Elevation
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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.
Nicest, best performing truck I've ever owned
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.
Used
2023 GMC Sierra 1500 SLE
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As always, we had a great service experience.
As always, we had a great service experience. The professionalism, efficiency and fantastic customer service from Marek Kozlowski and his service team are a primary factor of why we continue to be loyal Jeep owners. They are the best!
Just wondering
Does anybody else’s truck just sit there after you put it drive? I have to bump the accelerator to have it go into gear. ??????????????????????????????????????????? ?????????????
Used
2025 GMC Sierra 1500 AT4
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Reviews
Recently we purchased a Subaru Crosstrek from Flatirons
Recently we purchased a Subaru Crosstrek from Flatirons Subaru in Boulder, Colorado. The dealership was very clean, well organized and made a good impression from the moment we entered it. The available salesman at the time we came in was Connor. He was very polite, professional, knowledgeable and mannered. He showed us several vehicles helping us to decide what to buy. If you want to buy a Subaru I definitely recommend Flatirons Subaru and also ask for Connor. You will not be disappointed. Unfortunately we had the displeasure to run into another person who looked very unprofessional. But the experience we had with Connor, convinced me to give 5 stars to this business.
I bought this after going to the dealer just to look at
I bought this after going to the dealer just to look at colors. I had a 2016 Chevy 1500 LTZ that I loved. There was my down payment and took this Denali home. Only 2 options. Paint and moonroof. I thought my chevy with 3.42 gears was quick. This one goes with 3.23's. The ride is great. Fit and finish are perfect. My only complaint is this Bose/Apple play radio is not what the 2016 Bose was.
Used
2016 GMC Sierra 1500 SLE
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Reviews
Malachi contacted me immediately about the Certified 2022
Malachi contacted me immediately about the Certified 2022 Volkswagen Taos 1.5T SEL. Malachi communicated effectively, so chill, amazing costumer service, and he made this process was easy and painless for me. I would highly recommend Malachi with Phil Long Ford!
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
2017 GMC Sierra 1500 SLT
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Reviews
Great experience.
Great experience. Joe, my service agent was outstanding. He not only got my vehicle ready ahead of time, but he also took the time to take me to my truck when it was still up on the hoist. He and several of the mechanics showed me the condition of the vehicle.and remarked it was one of the nicest condition 2006 Tundras they have seen in a long time..I was very pleased he did this and, yes Iam very proud of my vehicles.
Good afternoon everyone, yes, I’m a lady and I’m an owner
Good afternoon everyone, yes, I’m a lady and I’m an owner of a 2017 GMC Sierra 1500 Denali, it has a V8 motor fully loaded sunroof & also it has heated seats & steering wheel for the cold winter months & in those hot summer months you have A/C seats nothing better than that am I correct? It’s been times like that wouldnt trade for the world!! So for all you ladies who think BIG TRUCKS are just for men, go out there & buy one have them put on some electronic slide in/out rails & go out & show the shows the boss!! lol 😄 I’m out looking for a new one now either a 2500/3500 pearl white
Used
2025 GMC Sierra 1500 Denali
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?????????? I had a great car-buying experience at Mike
?????????? I had a great car-buying experience at Mike Maroone GMC in Boulder. From start to finish, the team went above and beyond. A special thank you to Austin, the new car sales manager, Brayden, Cosmin, and Alec. Their customer service was outstanding, and what really stood out was their follow-through. Anytime I had multiple questions, they took the time to explain things in a way that I could clearly understand?never rushed, never brushed off. This wasn?t just about buying a vehicle?it was about feeling taken care of. The level of professionalism, patience, and genuine care made this the smoothest and most enjoyable car-buying experience I?ve ever had. I highly recommend Austin, Brayden, Alec and Cosmin, and the entire team at Mike Maroone GMC Boulder!
Overall I am very happy with my new Truck.
Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?
Used
2021 GMC Sierra 1500 Denali
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Reviews
Great car buying experience will be back for my next one
Great car buying experience will be back for my next one just nice people and nice cars!!!
2021 GMC Sierra Denali
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.
Used
2016 GMC Sierra 1500 SLT
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Reviews
excellent bought a good car good prices 100% recommended
excellent bought a good car good prices 100% recommended Fatima nuñez the best group 🙏🏻
I've had the truck a month, and so far so good!
It's exactly what I was looking for; used but not too used, low miles, good looking but not too many bells and whistles, and didn't need any work.
Used
2019 GMC Sierra 1500 AT4
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We had a great experience with this dealership!
We had a great experience with this dealership! I highly recommend using Jeremy Tabangay as your salesman. He was very polite, and wasn't aggressive in his sales tactics. He really made you feel like you weren't just a number to him. He also did a follow up after we purchased, just to make sure that everything was going well. I would also like to give Matt (finance department) a good review. He was fun to work with on the financing of our vehicle, and didn't pressure us into buying any add ons. He was also very quick in getting all the paper work filled out. We really enjoyed our entire visit there. I would use this dealership again in the future. Especially, if I was working with both of them.
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
2024 GMC Sierra 1500 AT4
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We recently purchased a 2023 F-350 from Erin in Loveland.
We recently purchased a 2023 F-350 from Erin in Loveland. We live in Evergreen [approx 75 miles away], Erin had our deal and all docs ready for us to sign. Felt very comfortable with ClearShift and would definitely recommend to friends and family! Worth the drive for sure!
2024 GMC sierra 1500 duramax 3.
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.
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $63,394 | |
| 2025 GMC Sierra 1500 | $56,668 | 5 Good deals |
| 2024 GMC Sierra 1500 | $49,473 | 12 Great deals |
| 2023 GMC Sierra 1500 | $46,961 | 9 Good deals |
| 2022 GMC Sierra 1500 | $41,376 | 7 Great deals |
| 2021 GMC Sierra 1500 | $37,262 | 7 Great deals |
| 2020 GMC Sierra 1500 | $34,859 | 4 Good deals |
| 2019 GMC Sierra 1500 | $35,402 | 8 Good deals |
| 2018 GMC Sierra 1500 | $28,644 | 8 Good deals |
About the GMC Sierra 1500
How much does the GMC Sierra 1500 cost?
The GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for the Sierra 1500 is $38,991, with pricing starting at $1,998.
What is the MPG of the GMC Sierra 1500?
The GMC Sierra 1500 with traditional internal combustion engine offers up to 18 MPG city and 24 MPG highway for a combined rating of 20 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle model year, trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the GMC Sierra 1500?
The GMC Sierra 1500 compares to and/or competes against the following vehicles:
What trim levels are available for the GMC Sierra 1500?
The GMC Sierra 1500 is available in the following trim levels:
What model years are available for the GMC Sierra 1500?
Available model years for GMC Sierra 1500 inventory range from 1998 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 1500 by price
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Compare the GMC Sierra 1500
Used GMC Sierra 1500 by city
-
GMC Sierra 1500 in Pine Brook Hill, CO
31 Great Deals out of 135 listings starting at $7,300
-
GMC Sierra 1500 in Paragon Estates, CO
41 Great Deals out of 216 listings starting at $5,988
-
GMC Sierra 1500 in Gunbarrel, CO
37 Great Deals out of 182 listings starting at $5,988
-
GMC Sierra 1500 in Lazy Acres, CO
31 Great Deals out of 135 listings starting at $7,300
-
GMC Sierra 1500 in Eldorado Springs, CO
41 Great Deals out of 221 listings starting at $5,988
-
GMC Sierra 1500 in Louisville, CO
45 Great Deals out of 234 listings starting at $5,988
-
GMC Sierra 1500 in Niwot, CO
36 Great Deals out of 175 listings starting at $7,300
-
GMC Sierra 1500 in Altona, CO
34 Great Deals out of 155 listings starting at $7,300
-
GMC Sierra 1500 in Superior, CO
46 Great Deals out of 249 listings starting at $5,988
-
GMC Sierra 1500 in Lafayette, CO
41 Great Deals out of 223 listings starting at $5,988
-
GMC Sierra 1500 in Coal Creek, CO
35 Great Deals out of 186 listings starting at $5,988
-
GMC Sierra 1500 in St. Ann Highlands, CO
28 Great Deals out of 102 listings starting at $8,500
GMC Sierra 1500 by trim
-
GMC Sierra 1500 SLT
7 Great Deals out of 42 listings starting at $17,927
-
GMC Sierra 1500 Denali
3 Great Deals out of 38 listings starting at $19,698
-
GMC Sierra 1500 Elevation
12 Great Deals out of 37 listings starting at $27,950
-
GMC Sierra 1500 AT4
6 Great Deals out of 35 listings starting at $32,700
Used GMC Sierra 1500 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.
