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Used
GMC Sierra 1500 AT4
for sale
near
Pine Brook Hill, 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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Was looking to trade in my 2019 Raptor and found an
Was looking to trade in my 2019 Raptor and found an Explorer Tremor. The deal was easy, fast and the salesman was very accommodating and knowledgeable.
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!
Certified
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Very friendly and knowledgeable staff.
Very friendly and knowledgeable staff. Great customer service. Everyone made us feel right at home. I had been watching the website and finally found what I was looking for.
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
2024 GMC Sierra 1500 AT4
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
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.
Vehicle information
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Reviews
I recently purchased an Hyundai Ioniq 9 from Mountain
I recently purchased an Hyundai Ioniq 9 from Mountain Hyundai and had a fantastic experience from start to finish. My sales agent, David Lax, was excellent throughout the entire process. David was knowledgeable, patient, and completely transparent. He took the time to answer all of my questions, explained every detail clearly, and made sure I felt comfortable with each step. There was no pressure?just honest guidance and professionalism. The whole team made the buying processs smooth and straightforward, and I truly felt taken care of. If you?re considering an Ioniq 9 or any Hyundai, I highly recommend asking for David. He made what can sometimes be a stressful experience feel easy and exciting. Thank you, David and Mountain Hyundai!
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 AT4
Vehicle information
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Reviews
T was wonderful to work with and made me fill comfortable
T was wonderful to work with and made me fill comfortable and willing to complete the sale of my truck. Thank You
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
2025 GMC Sierra 1500 AT4
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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.
Let me start by saying I have the AT4 model with the
Let me start by saying I have the AT4 model with the Duramax 3.0L diesel. I had a 2024 Elevation with the 5.3L V-8 that I bought to pull my 22’ camper. While the Elevation pulled my camper fine it drank the gas like it was on a binge. And with a 26 gallon gas tank it seemed I was filling up every couple of hours. After one trip to Nova Scotia I knew something had to change. I pulled my camper out west to Yellowstone and back through Arizona. It pulled like a champ and fillups were a lot more manageable. Even driving the speed limit out west I still got four to five mpg better than with the gasser. I liked the Elevation but I love the AT4. Way nicer ride and great handling. I get 30 per gallon of diesel on the highway if I drive the speed limit but I got it to tow with. I added a Titian replacement fuel tank so I have 43 gallons instead of the 26 it came with.
Used
2019 GMC Sierra 1500 AT4
Vehicle information
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Reviews
Very good experience made the process easy left with a
Very good experience made the process easy left with a new car all the workers are great!
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
Vehicle information
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Reviews
I recently purchased a vehicle from this dealership and
I recently purchased a vehicle from this dealership and it was my 3rd vehicle. I couldn?t say enough good things about this dealership. The Staff was amazing and made my experience amazing. Super helpful along every step of the way. Would highly recommend them.
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
2020 GMC Sierra 1500 AT4
Vehicle information
Features
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
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
2024 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Everyone from the sales rep.
Everyone from the sales rep., sales manager, finance manager and shop team worked to make my experience simple and left a lasting impression. I will absolutely recommend this dealership to anyone in the market for a vehicle.
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.
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Reviews
We were incredibly happy with Eugene and the service
We were incredibly happy with Eugene and the service department today! They were fast and did great work!
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
2020 GMC Sierra 1500 AT4
Vehicle information
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Reviews
Very good sales experience with sales rep Jim Gallegos at
Very good sales experience with sales rep Jim Gallegos at Mountain States Toyota. He reserved a Corolla for me and kept me informed by phone as to when the new Corollas were arriving. I got a decent discount off MSRP. He also pointed out the features of the new Corolla engine design, was helpful on the test drives, and explained the digital display operation. Mountain States Toyota was the only dealer I visited in the north Denver/Boulder/Longmont Colorado area that does not charge the high "documentation fee," so you are able to simply negoatiate a fair percentage discount off the Toyota MSRP on the window sticker (which includes the mandatory Toyota destination charge). I also appreciated the fact that the only add-on charge was for a set of good quality Toyota floor mats and trunk liner that came directly from Toyota already in the car. They offered other items for the car and a Toyota extended warranty, but there was no pressure to get them (and I declined, though I can get the warranty later). Some other Toyota dealerships order the cars with more expensive add-on items installed, that you may not want. I also got a welcome text from the general manager after my first visit asking if needed any assistance with selecting a car. So overall a very good experience with sales rep Jim Gallegos and Mountain States Toyota.
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
2021 GMC Sierra 1500 AT4
Vehicle information
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Reviews
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.
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Reviews
I was here at the dealership a few months ago and I
I was here at the dealership a few months ago and I traded in my 2010 challenger on a 2014 challenger. The new one I purchased was an absolute gem. It only had about 600 miles on it. I thought “no way will this get approved” I’ll have to drive two hours back home without the new vehicle. Well I am pleased that I had Vincent and Kurt to help every step of the way. Between the two, they got me the best deal possible and I got exactly what I wanted. Never any pressure at all from anyone. The whole team there was exceptional to work with. I couldn’t have asked for a better car buying experience. Thank you to everyone. I definitely recommend going to Omeara. I will for sure be going back when I need to purchase another vehicle. Bill
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
2024 GMC Sierra 1500 AT4
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Reviews
Craig T made purchasing a new vehicle from AutoNation
Craig T made purchasing a new vehicle from AutoNation Chevrolet North a real pleasure. He was able to coordinate the purchase, final prep, and delivery of the vehicle. I?m extremely happy with my experience purchasing an Equinox EV RS! Craig, Freddy in service, and the General Manager all made the experience extremely positive. I very strongly recommend both the sales and service departments. Ask for Craig. He will set you up with a vehicle that will serve you well!
Surprised myself and bought a GMC
I needed a new pickup and while I wanted a Ford F150 I could not find one set up how I wanted. When I did the Ford dealers didn't want to give what I felt my trade in was worth. I got what I wanted and got a great deal on a 2024 GMC Sierra 1500 Elevation. It is even set up better than the F150's I was looking for and at a better price. I'm very happy with my purchase.
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Reviews
Annissa Medina has helped me so much taken care of
Annissa Medina has helped me so much taken care of everything for me and is always so sweet, understanding, and very helpful with everything that I’ve needed. Her communication skills and personality along with professionalism always reassure me that I am going to get the best service and make me feel like I am always welcomed.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
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Reviews
Best Experience Ever
Brice and James were amazing? Best experience ever!
Short turn radius
I purchased pre-owned 2020 1500 SLT in February of this year. The truck rides comfortable and has plenty of room front and rear. My and I both enjoy it. My only drawback is the turn radius (lock to lock). It lacks compared to my wife's 2018 Yukon SLT, or the 2016 Ram I traded in. Have to many times maneuver twice to park it going forward or reverse. Otherwise happy with our purchase.
Used
2023 GMC Sierra 1500 AT4
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Features
Reviews
Easy to work with, set everything up in a timely manner.
Easy to work with, set everything up in a timely manner. Mathew did great explaining all my options. When it went to finance Juan was very knowledgeable and straightforward. Also a bonus is most of the documents are digital now.
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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Fantastic dealership
My experience was great from the time I walked in the door, Luke, Mike, and Kelley were fantastic from showing me what they had in my price range to helping me get approved and out the door with a vehicle. Will recommend them to friends and family 100%
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!
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*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.
GMC Sierra 1500 AT4 by city
-
GMC Sierra 1500 AT4 in Lazy Acres, CO
2 Great Deals out of 20 listings starting at $33,999
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2 Great Deals out of 26 listings starting at $29,995
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4 Great Deals out of 25 listings starting at $33,999
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5 Great Deals out of 29 listings starting at $29,995
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3 Great Deals out of 30 listings starting at $29,995
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GMC Sierra 1500 AT4 in Paragon Estates, CO
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GMC Sierra 1500 AT4 in Niwot, CO
4 Great Deals out of 28 listings starting at $29,995
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GMC Sierra 1500 AT4 in Louisville, CO
5 Great Deals out of 32 listings starting at $29,995
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GMC Sierra 1500 AT4 in Coal Creek, CO
2 Great Deals out of 26 listings starting at $29,995
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GMC Sierra 1500 AT4 in Superior, CO
5 Great Deals out of 35 listings starting at $29,995
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GMC Sierra 1500 AT4 in Lafayette, CO
3 Great Deals out of 32 listings starting at $29,995
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GMC Sierra 1500 AT4 in Longmont, CO
4 Great Deals out of 25 listings starting at $33,999
GMC Sierra 1500 by trim
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GMC Sierra 1500 SLT
12 Great Deals out of 42 listings starting at $13,599
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GMC Sierra 1500 Denali
5 Great Deals out of 30 listings starting at $22,995
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GMC Sierra 1500 Elevation
10 Great Deals out of 24 listings starting at $26,990
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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.