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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.
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Used
GMC Sierra 1500 SLT
for sale
near
Frederick, 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
2018 GMC Sierra 1500 SLT
Used
2020 GMC Sierra 1500 SLT
Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I took my car in for service, and service advisor Erin
I took my car in for service, and service advisor Erin Schwarz met me. She was not only helpful, but provided caring, attentive service which I truly appreciate!
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
Best Car Buying Experience Ever
I had the best car buying experience ever! Jacob was amazing from the time I called and spoke to him on the phone and met him in person. He found the perfect car for me! The finance department got the loan done quickly and was very straightforward and kind. In conclusion, Everyone was friendly, had my best interest in mind, and was very professional. I literally was in and out. Easy peezy!
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
2022 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The dealership was not able to find the specific car and
The dealership was not able to find the specific car and accessory packages I wanted, but the salesman, Gio, did an excellent job searching their network for vehicles and keeping me informed. I will definitely give them the opportunity to sell me my next new car. Highly recommended. I've taken two of my previous Toyotas to this Greeley dealership for service since 2010, even though it is an hour and a half drive each way. I will continue with my new 2025 Toyota.
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
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Raul, Derek and Alfonso made our buying experience
Raul, Derek and Alfonso made our buying experience simple! Found the perfect truck for our needs
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
Vehicle information
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Reviews
The sales associates at Ethio motors were awesome to work
The sales associates at Ethio motors were awesome to work with, they made it easy to get into a car I love. I would recommend them to anyone looking for a new vehicle.
best in class
My GMC Sierra is the best ride I have had in all the years that I have been driving. I started driving in 1977. I love my new Sierra.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
What a great way to buy a car!
What a great way to buy a car! AutoSearch will give you unbiased advice on any make or model, then decide on what you want and let their staff do all the work to find a car and bring it to you. And the best part is the deal will be quick and simple with no added pressure.
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
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Internet shopping
Greg Wolaver was a great help in regards to my long distance purchase of a used Jeep Commander. He was up front during the whole process and greatly assisted in the shipping process. I haven’t gotten my vehicle yet but if it’s half as good as he stated it will be a great purchase.
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
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.
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
2017 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
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
2022 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2017 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Awsome guys
We have bought 3 cars from andrew and he coworker. These two are the best around. They take good care of their automobile’s and their buyers. We always go to them first and we will for a long while to come.
Smooth ride strong motor decent gas mileage inside cab is
Smooth ride strong motor decent gas mileage inside cab is loaded and very tastefully done along w easy access to knobs. Plenty of room. In back seat ! Aclassy looking Truck with a tacky looking owner!!
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Rick Hawkins and Red’s are the best.
Rick Hawkins is excellent. Straightforward, opposite of a stereotypical car salesman. Pleasure doing business with these folks. Will Patronize again in the future thanks much.
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
2019 GMC Sierra 1500 SLT
Vehicle information
Features
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!
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
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Carlos at Super Auto was professional, patient, and easy
Carlos at Super Auto was professional, patient, and easy to work with. He addressed my concerns and showed me several cars without being pushy. I appreciated his approach.
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.
Certified
2018 GMC Sierra 1500 SLT
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.
Better than my old truck
The truck has more features than I need. It is quiet and comfortable. it has plenty of power to pull a work trailer. Overall a nice truck
Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great Buying Experience
Look for Lindsay she made buying hassle free after a long day at work. Once I was in finance Leonel had the paperwork ready and it only took a few minutes to complete the sale.
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
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great dealership top to bottom.
Great dealership top to bottom. Bought my truck there almost 4 years ago, I bring it back in regularly for preventative maintenance. Absolutely phenomenal service, work with Ian, he is the best service advisor
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
Vehicle information
Features
Used
2014 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
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
2019 GMC Sierra 1500 SLT
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!
*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 SLT by city
-
GMC Sierra 1500 SLT in Dacono, CO
11 Great Deals out of 59 listings starting at $15,733
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GMC Sierra 1500 SLT in Firestone, CO
8 Great Deals out of 43 listings starting at $15,733
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GMC Sierra 1500 SLT in Erie, CO
11 Great Deals out of 64 listings starting at $15,733
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GMC Sierra 1500 SLT in Longmont, CO
8 Great Deals out of 42 listings starting at $15,733
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8 Great Deals out of 38 listings starting at $15,733
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GMC Sierra 1500 SLT in Fort Lupton, CO
9 Great Deals out of 44 listings starting at $15,733
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GMC Sierra 1500 SLT in Niwot, CO
6 Great Deals out of 40 listings starting at $15,733
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GMC Sierra 1500 SLT in Todd Creek, CO
13 Great Deals out of 69 listings starting at $15,733
-
GMC Sierra 1500 SLT in Lafayette, CO
11 Great Deals out of 56 listings starting at $15,733
-
GMC Sierra 1500 SLT in Platteville, CO
8 Great Deals out of 38 listings starting at $15,733
-
GMC Sierra 1500 SLT in Gunbarrel, CO
10 Great Deals out of 50 listings starting at $15,733
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GMC Sierra 1500 SLT in Aristocrat Ranchettes, CO
9 Great Deals out of 40 listings starting at $15,733
GMC Sierra 1500 SLT by year
-
2026 GMC Sierra 1500 SLT
39 listings starting at $59,785
GMC Sierra 1500 by trim
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GMC Sierra 1500 Denali
3 Great Deals out of 54 listings starting at $20,698
-
GMC Sierra 1500 Elevation
11 Great Deals out of 41 listings starting at $27,990
-
GMC Sierra 1500 AT4
4 Great Deals out of 31 listings starting at $29,995
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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.