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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
2019 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Service was as expected.
Service was as expected. The rep was friendly and kept me informed regarding the progress of my service. I am very pleased. Thanks
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
2022 GMC Sierra 1500 AT4
Vehicle information
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Reviews
Mountain States and Matt West made the car purchasing
Mountain States and Matt West made the car purchasing proceed very easy. Communication, price and process made the experience outstanding
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
2015 GMC Sierra 1500 Denali
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Reviews
Working with Berenisse in the purchase of the car I was
Working with Berenisse in the purchase of the car I was wanting was an awesome and pleasurable experience. She was not only very knowledgeable but a treat to communicate with and made the whole experience wonderful. If you are looking to purchase a vehicle from Sharpest Rides I recommend working with her hands down. It was my pleasure to work with her.
This truck is the base model and that is exactly what we
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.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Marek consistently provides efficient customer service.
Marek consistently provides efficient customer service. He?s very detailed oriented, is knowledgeable and dedicated to getting it right. Jon provided a ride home and polished out a fender scrape. I?ve used this service garage for 17 years and my 20 yo Crossfire still runs strong.
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
2023 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
This is my family?
This is my family?s third vehicle through autonation, and there is a reason why! Great sales team, great showroom and great financing department!!! And we will buy again!!!!
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 AT4
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Features
Reviews
I took my little Buick Encore there because the check
I took my little Buick Encore there because the check engine light was on. My mechanics name was Nico. He was very informative and responsive. Let me know what was going on through the whole process. These people are great! Reasonably priced. I will absolutely go back there.
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
2025 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great Customer Service and Sales Team
They did a great job of helping me find the perfect pick up. Levi spent a lot of time helping me. A very good experience. After the sale, I had a small issue with the battery and they swapped it out for a new one, no questions asked. Great dealership!
I have the 1500 double cab with standard bed.
I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Car buying
Today was a fabulous day I finally got my Bronco 2022. My sales person Kelly Frank made my dream come true. The experience was sweet and I would recommend Interstate Ford to buy your next car. From the General Manager, Sales Mangers, the employees my sales person Kelly Frank and the Finance Managers it was awesome ❤️❤️❤️Interstate Ford rocks❤️❤️❤️❤️❤️
Great truck!
I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!






Used
2022 GMC Sierra 1500 Elevation
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Features
Reviews
Great buying experience except for the finance process,
Great buying experience except for the finance process, which took way too long. The vehicle itself was recently serviced and new Michelin LTX M/S
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
2019 GMC Sierra 1500 Denali
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Features
Reviews
Amazing!
Amazing! Always such great service. The staff is wonderful, so friendly and kind. I went for an oil change and they were so quick and efficient.
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!






Certified
2021 GMC Sierra 1500 Base
Vehicle information
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Reviews
22 Ford Mustang Mach E GT
This dealership price protected my purchase, honoring the price listed at time of reservation. the process was smooth and were able to complete the purchase within a few hours. taylor know was sales person!
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...






GMC Certified
2023 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I worked with Seth Caldiero and he helped to make buying
I worked with Seth Caldiero and he helped to make buying experience very seamless and a low pressure event.
"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
2016 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Chris checked me in.
Chris checked me in. And it was my first time at Stevenson west. He was super helpful. Update me about the process and made me fell welcomed. So appreciated this as a first time Toyota owner!
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.






Vehicle information
Features
Reviews
A big thank you to Zach G.
A big thank you to Zach G. And staff at Mountain Hyundai on Broadway. Along with an oil change, I had a specific situation that could have been costly. At only 14K miles, I had a tire leak that was not repaired properly elsewhere. Zach and his team took the time to really examine the tire, do extra work to save it. What a relief as it could have turned out needing a new set of tires with the AWD. I am very impressed with everything about this location. Thank you kindly I appreciate you all & will be back??
Failed transmission and full replacement
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.






Used
2007 GMC Sierra 1500 SLT Crew Cab
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Features
Reviews
When it came time to sell my vehicle, not only was Shawn
When it came time to sell my vehicle, not only was Shawn the first person to reach out to me but was also the only one willing to come to me - which was a HUGE help! We were moving out of state and were hoping to sell in less than 2 days. He made the process simple, was a great communicator, and we negotiated a fair deal. On top of all that, he just a really nice guy! I always look for a win-win in doing business and Shawn made that possible. I ended up needing to get a duplicate title since the original was misplaced. He was patient and even drove an extra hour out of his way to come grab the title from me the next day because he knew I was swamped with the move!! He really went above and beyond. Honestly, I didn’t know that selling a vehicle could be such a good experience and I can’t recommend him enough! Thank you again, Shawn!
Amazing First Truck
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






GMC Certified
2024 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
friendly, no pressure experience
Great car buying experience. Friendly, knowledgeable, no pressure salesman Kyle Berry. One minor problem was handled quickly and professionally with no hassle. Go see Kyle.
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
2025 GMC Sierra 1500 Pro
Vehicle information
Features
Reviews
Buying my first vehicle from this dealership was an
Buying my first vehicle from this dealership was an excellent decision, an overall outstanding experience.






Used
2024 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
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!
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
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Outstanding experience.
Outstanding experience. Christopher, our sales rep was incredible. This is our second Outlander we have purchased from him in under a year.
Nice GMC Sierra 1500 Denali.
I really like my nw, to me, 2015 GMC Sierra Denali. The salesman, Terrance Lin was very efficient, helpful and courteous. Thank you very much.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My wonderful car buying experience
I was very pleased with the vehicle I was able to purchase at Grand Valley Auto Lakewood! I had less than perfect credit after being left carless in my divorce. My friends had recently purchased a car from Mike and Kelley and they assured me I would be treated honestly and fairly. I was very skeptical due to the fact that I had recently been taken advantage of on the purchase of my new TV. They listened to my wants and needs and I left in a car that I both loved and knew would do the job. I would definitely recommend and return for my next vehicle purchase!
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
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $44,344 | |
2025 GMC Sierra 1500 | $41,504 | 5 Great deals |
2024 GMC Sierra 1500 | $37,987 | 19 Good deals |
2023 GMC Sierra 1500 | $38,322 | 18 Good deals |
2022 GMC Sierra 1500 | $30,866 | 13 Good deals |
2021 GMC Sierra 1500 | $27,499 | 13 Good deals |
2020 GMC Sierra 1500 | $24,999 | 15 Good deals |
2019 GMC Sierra 1500 | $20,999 | 4 Good deals |
2018 GMC Sierra 1500 | $19,371 | 6 Great 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 $40,351, with pricing starting at $1,986.
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 1995 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 Boulder, CO
27 Great Deals out of 190 listings starting at $8,498
-
GMC Sierra 1500 in Pine Brook Hill, CO
18 Great Deals out of 134 listings starting at $11,000
-
GMC Sierra 1500 in Paragon Estates, CO
32 Great Deals out of 217 listings starting at $4,897
-
GMC Sierra 1500 in Gunbarrel, CO
27 Great Deals out of 184 listings starting at $8,999
-
GMC Sierra 1500 in Lazy Acres, CO
19 Great Deals out of 130 listings starting at $11,000
-
GMC Sierra 1500 in Eldorado Springs, CO
33 Great Deals out of 222 listings starting at $4,897
-
GMC Sierra 1500 in Louisville, CO
35 Great Deals out of 227 listings starting at $4,897
-
GMC Sierra 1500 in Niwot, CO
26 Great Deals out of 183 listings starting at $11,000
-
GMC Sierra 1500 in Altona, CO
21 Great Deals out of 146 listings starting at $11,000
-
GMC Sierra 1500 in Superior, CO
38 Great Deals out of 245 listings starting at $4,897
-
GMC Sierra 1500 in Lafayette, CO
32 Great Deals out of 224 listings starting at $4,897
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GMC Sierra 1500 in Coal Creek, CO
28 Great Deals out of 188 listings starting at $4,897
GMC Sierra 1500 by trim
-
GMC Sierra 1500 Denali
4 Great Deals out of 50 listings starting at $14,999
-
GMC Sierra 1500 SLT
7 Great Deals out of 47 listings starting at $12,988
-
GMC Sierra 1500 AT4
3 Great Deals out of 28 listings starting at $27,500
-
GMC Sierra 1500 Elevation
4 Great Deals out of 22 listings starting at $26,777
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.