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Used
2020 GMC Sierra 1500 trucks
for sale
near
Cool Valley, MO
- 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
Gus and his crew were amazing.
Gus and his crew were amazing. I bought this pickup off the internet, and they picked me up at the airport and 1 hour and 20 minutes I was headed home.
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
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great service!
Great service!I was picked up at the airport in a very timely manner.I recommend this dealership to anyone I meet that is looking for a vehicle.
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
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
It was a great experience, I purchased the 2020 GMC
It was a great experience, I purchased the 2020 GMC Canyon Denali from Laura Buick GMC, I love the vehicle and service rendered by the dealership was incredible. They are a great dealership to patronize because they make their customers feel valued.
Great Truck
I did my research and test drove several models. The GMC 1500 Duramax does everything I want it to do and more. Great gas milage, nice power and very comfortable.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Justin Scheaffer supported my acquisition of a 2025 GMC
Justin Scheaffer supported my acquisition of a 2025 GMC Denali truck with total customer care in mind. From finding the exact vehicle I wanted to it delivery, Justin was there, front and center - An Outstanding job; definitely a go-to professional who gets my highest rating!! Thanks Justin - Will stay in touch!
Best truck we have owned!
Truck meets my and my wife's needs. She loves her and I do to! Love sport mode and the tow hail mode. Rides like a Cadillac!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I always get great customer service from everyone at
I always get great customer service from everyone at Laura Buick. My go to guy is David Day. They always do a great job with any issues with my car.
Best truck I’ve bought
The features and styling are very aesthetic. The truck has very smooth handling and response. I am impressed with the response from the Diesel engine.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience.
Great experience. Jimmy was great and answered all my questions. love my new Yukon XL 2025. I would definitely recommend Jimmy and this dealership to my friends and family.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Love this dealership!
Love this dealership! The new location is wonderful - I send my family here. My brother bought a car, and loves it!
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
GMC Certified
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Pepper was very helpful and professional.
Pepper was very helpful and professional. I would recommend this dealership because of him. Very pleased.
GMC Certified
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Gavin and Darryl were great salemen to work with!
Gavin and Darryl were great salemen to work with! Appreciate them! The showroom and service dept is nice as well. We have used their service dept in the past and always have a good experience.
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Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
GMC Certified
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
GMC Certified
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $62,112 | |
| 2025 GMC Sierra 1500 | $54,790 | 6 Great deals |
| 2024 GMC Sierra 1500 | $50,382 | 14 Great deals |
| 2023 GMC Sierra 1500 | $50,100 | 6 Great deals |
| 2022 GMC Sierra 1500 | $43,943 | 21 Good deals |
| 2021 GMC Sierra 1500 | $36,154 | 10 Great deals |
| 2019 GMC Sierra 1500 | $33,712 | 18 Good deals |
| 2018 GMC Sierra 1500 | $28,946 | 5 Great deals |
*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.
Research the 2020 GMC Sierra 1500
Compare the 2020 GMC Sierra 1500
2020 GMC Sierra 1500 Trucks by city
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2020 GMC Sierra 1500 Trucks in Cool Valley, MO
8 Great Deals out of 35 listings starting at $23,495
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2020 GMC Sierra 1500 Trucks in Bel-Nor, MO
8 Great Deals out of 35 listings starting at $23,495
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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.
