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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.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Wow Daniella was just great.
Wow Daniella was just great. Thank you so much for you help and getting me a new car. She was so patient and easy to talk to. Thank you Daniella and mountain state. Definitely recommend this place and go see Daniella
Any reviews on this vehicle is not correct.
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 !
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
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.
I own a 2023 Sierra 1500 Elevation equipped with the 2.
I own a 2023 Sierra 1500 Elevation equipped with the 2.7L TurboMax, and it’s been outstanding. It currently has 23,000 flawless miles. I’ll admit, I was skeptical of the 2.7 at first, but I jumped in feet-first and have never looked back. Living in Colorado, I regularly tow a 5,000-pound travel trailer through the Rockies with zero performance issues. The truck pulls confidently, handles grades with ease, and still delivers impressive fuel economy—23–24 mpg on the highway and about 18 mpg in town. I couldn’t be happier with this setup. If there is a negative to mention, that would be that after three years of ownership, the black wheels havent grown on me, and Im beginning to hate em. :) Lastly, the mpg while towing drops to 9mpg which is similar to that of a V8. All said, its been a great truck. :)
Used
2026 GMC Sierra 1500 AT4X
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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.
Easy purchase experience, would recommend to anyone
Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible
Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Our salesman, Ed was great.
Our salesman, Ed was great. Patient, funny and knowledgeable. Only showed us the cars we were interested in . We would definitely work with him again.
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 SLE
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.
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
2024 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I had been driving a 2016 Chevy trax for almost 10 years
I had been driving a 2016 Chevy trax for almost 10 years and knew I wanted another Trax. I like the new modern look ot the 2026 Trax. I told the salesman what I wanted inside the car and he had a car ready for me to test drive when I arrived at the dealership, Emich Chevrolet in Lakewood, Co. The buying process was amenable. I am happy with my purchase and recommend this dealership.
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.
Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
in and out in 3 hours fastest time ever buying a car no
in and out in 3 hours fastest time ever buying a car no complaints. had excellent help in Eric buying the car it was exactly what we wanted
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
2022 GMC Sierra 1500 SLT
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Features
Reviews
Excellent service by Van Tran.
Excellent service by Van Tran. He was professional, knowledgeable, and friendly. Our entire experience was helpful and pleasant. It was particularly helpful to have the loaner car for the weekend.
2022 GMC Sierra SLT 3.0 Duramax
My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!
Used
2024 GMC Sierra 1500 SLT
Vehicle information
Features
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. 👍👍
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 SLT
Vehicle information
Features
Reviews
Good costumer service and very helpful it was what we
Good costumer service and very helpful it was what we expected plus they have nice cars
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
2018 GMC Sierra 1500 Denali
Vehicle information
Features
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!
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
2024 GMC Sierra 1500 Elevation
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Reviews
Great experience as always , professional and quick.
Great experience as always , professional and quick. Dominic was great. We will be back again.
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.
Used
2021 GMC Sierra 1500 AT4
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Features
Reviews
Danny gave the best customer service experience.
Danny gave the best customer service experience. He was very accommodating and worked with my schedule. He made me feel like I was no trouble at all. The nicest person ever. I will ask for him if I ever need service on my car.
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
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent customer service from beginning to end.
Excellent customer service from beginning to end. I would highly recommend. There really isn?t much else to say other than I would recommend. Please tell others
new owner of the gmc denali, 2018 6.2
handles and drives great, the electronics don't always work, mirrors don't always work, spray with wd 40, check engine light, EVAP culprit, auto nation has no luck with this, will drive it till the warrenty expires and its back to ford for me
Used
2023 GMC Sierra 1500 Elevation
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Features
Reviews
?????????? 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!
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
2021 GMC Sierra 1500 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!
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 Denali
Vehicle information
Features
Reviews
I feel like I can drop in and shoot it any time with
I feel like I can drop in and shoot it any time with dealership. Saved me on a bunk warranty as well! Always feels like Family!
"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
2022 GMC Sierra 1500 SLE
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Features
Reviews
Elba me atendió muy bien!
Elba me atendió muy bien! Encantados con el servicio, muy bien todo el proceso súper rapido
Pleased that I made this purchase
Waiting for the Refreshed 2022 AT4 was well worth it! With all the manufacturing issues today, building and shipping was slow, but understandable. Love the truck and the features! Fit is perfect and quality is #1. Pricing was too high but all vehicles are running this way. You get what you pay for and this truck is perfect! I have owned many trucks and this by far is the best. The latest features are beyond most other makes and GM has thought this truck through from front to rear.
Used
2024 GMC Sierra 1500 Denali
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Features
Reviews
Isiah, Arie, and the rest of the team did a great job
Isiah, Arie, and the rest of the team did a great job making our car buying/trade-in experience go as smoothly and quickly as possible. They even made sure our car was detailed and had a full tank of gas before we left the lot! Great communication from start to finish.
Looked at more expensive truck with less options, bought
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.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
excellent bought a good car good prices 100% recommended
excellent bought a good car good prices 100% recommended Fatima nuñez the best group 🙏🏻
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.
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $62,395 | 4 Good deals |
| 2025 GMC Sierra 1500 | $54,940 | 5 Great deals |
| 2024 GMC Sierra 1500 | $50,412 | 6 Great deals |
| 2023 GMC Sierra 1500 | $47,016 | 21 Good deals |
| 2022 GMC Sierra 1500 | $40,627 | 5 Great deals |
| 2021 GMC Sierra 1500 | $34,443 | 14 Good deals |
| 2020 GMC Sierra 1500 | $34,129 | 8 Good deals |
| 2019 GMC Sierra 1500 | $34,279 | 14 Good deals |
| 2018 GMC Sierra 1500 | $29,746 | 13 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 $39,548, with pricing starting at $1,500.
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 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 1500 by price
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GMC Sierra 1500 by trim
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GMC Sierra 1500 Denali
3 Great Deals out of 47 listings starting at $12,988
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GMC Sierra 1500 SLT
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GMC Sierra 1500 Elevation
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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.