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Used
GMC Sierra 1500 AT4
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.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
How easy it is to work with Johnson Auto Plaza.
Purchasing my new 2022 GMC Sierra was easy as buying something through the drive-thru. The salesperson, Chris Maneotis was awesome. He explained how my trade-in would go towards the purchase of the new truck and went over the financing and options. I would highly recommend anyone to work with Johnson Auto Plaza.
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.
Vehicle information
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Reviews
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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
AutoNation Chevrolet North has been servicing all of my
AutoNation Chevrolet North has been servicing all of my vehicles for over 30 years and I continue to be very pleased with the great service and communication that I receive. Great job guys!
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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great sales experience ask for Craig
Craig was straight forward and honest we couldn't be happier :-) Went to others and felt different. He answered all our questions. Ask for Craig like the list!
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
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Five Star Service!
I drove right in, the Service Associate that greeted me was very polite and explained exactly what was going to be done, as I waited for my vehicle he came to check on me and asked if I had any other questions or concerns, it was a great experience and I will certainly be returning to Transwest GMC for all my service needs
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
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Amazing deal
Zee was extremely helpful and did not put any pressure on me to buy the car. He helped me with the application and got me a great deal. Very happy and excited about my new camaro.
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
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Happy auto customer
Great customer service , bought 2 cars my family is very impressed with the process and the way everything was so smooth and very informational thank you
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
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I would buy here again!
George was very helpful and knowledgeable. He made the entire process easy and enjoyable. The dealership even included a lifetime powertrain warranty, which is something I have never heard of any other dealer doing. I highly recommend George and Foundation Kia…they were a breath of fresh air!
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...
Vehicle information
Features
Reviews
Outstanding experience with Ethio Motors.
Outstanding experience with Ethio Motors. They took care of all my needs and did not try to pressure me to buy something that i didnt want. All the staff was friendly and very nice. They have an awesome service team as well! Amir was amazing to work with!! Thank you to you all!
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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Austin Ellenberg helped us find the exact Buick Enclave
Austin Ellenberg helped us find the exact Buick Enclave that we wanted. He was very nice to work with and patiently helped us understand all the new features on the 2025 car. His explanations of everything were excellent, and we appreciate his offer to talk with us again about any new questions that we come up with. We also appreciate that he had a new battery installed before we took possession of the car, since the previous extreme cold temperatures had run down the battery while the car was on the lot.
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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
DJ was my salesman and he did an amazing job!
DJ was my salesman and he did an amazing job! I highly recommend going to Alpine Buick. The Facility is beautifully represented. Always eager to help.
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
We love our new Yukon thanks for all your help!
We love our new Yukon thanks for all your help!! Very fast, and helpful staff, appreciate everything!!! Carolina was very nice and very helpful and made our buying experience amazing!!
"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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I had a great experience as a first time buyer from a
I had a great experience as a first time buyer from a dealership and my sales representative was extremely polite and very helpful in helping me purchase a vehicle that I liked.
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!
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Smoothest and most professional car buying experie
Smoothest and most professional car buying experience I have had over the years. The dealership was transparent as to the pros and cons of the vehicles I was interested in. The sales person made it clear she was not paid on commission and so I knew her input was not motivated to sell me a higher priced vehicle for her self interest. The sales person was a true professional from the very beginning.
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!
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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
-
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2 Great Deals out of 32 listings starting at $30,750
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2 Great Deals out of 35 listings starting at $28,998
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GMC Sierra 1500 AT4 in Commerce City, CO
2 Great Deals out of 35 listings starting at $28,998
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2 Great Deals out of 35 listings starting at $28,998
-
GMC Sierra 1500 AT4 in Westminster, CO
2 Great Deals out of 35 listings starting at $28,998
GMC Sierra 1500 AT4 by year
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2026 GMC Sierra 1500 AT4
39 listings starting at $67,548
GMC Sierra 1500 by trim
-
GMC Sierra 1500 Denali
4 Great Deals out of 66 listings starting at $12,498
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GMC Sierra 1500 SLT
7 Great Deals out of 57 listings starting at $15,954
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7 Great Deals out of 38 listings starting at $26,777
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GMC Sierra 1500 AT4
2 Great Deals out of 35 listings starting at $28,998
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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.
