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Used
2020 GMC Sierra 1500 trucks
for sale
near
Wind Lake, WI
- 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






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Sales person great.
Sales person great. Sales manager and finance felt disingenuous, not what I’d expect from bmw dealership. Not sure quality of vehicles.
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 Elevation
Vehicle information
Features
Reviews
Ours sales person was excellent, without Cecilia I don?
Ours sales person was excellent, without Cecilia I don?t think we would of made it through the long process. Getting a trade in for our car took way to long. They need speed up the process! Also the finance part was backed way up and also need to speed that up!
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 AT4
Vehicle information
Features
Reviews
Great!
Great!! Did everything they could to make it a pleasurable car buying experience! Great job to the team at Boucher BGMC
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 Denali
Vehicle information
Features
Reviews
In and out, very smooth.
In and out, very smooth. No issues at all. The video of the service was pretty Kool. Price is very competitive. All my cars get their service there.
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 Elevation
Vehicle information
Features
Reviews
Fantastic employee assistance and buying experience.
Fantastic employee assistance and buying experience. Huge thanks to “LJ” and Dogan for getting me hooked up with an amazing Toyota Camry






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Eli Cocom provided exceptional customer service.
Eli Cocom provided exceptional customer service. I would recommend this establishment to any of my friends and guide them to Eli for any help. He provided the information for my future visits and was extremely patient.






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I love my car so much!
I love my car so much! The process was so easy and only took a day to bring my car home!






Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
How Great Antioch Chrysler Dodge Jeep Ram Is
Everyone at this Dealership treated me with respect and courtesy. They were all polite and answered my question honestly. Treated me like an adult, not a senile old lady because I have white. Thank you all at Antioch Chrysler Dodge Jeep Ram.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
They really made this a smooth experience.
They really made this a smooth experience. Especially when it came to the actual purchase of the vehicle. We dealt with Nick as our sales person and he was great at communicating with us and insuring any needs or concerns were addressed.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Excellent always satisfied when I leave the dealership.
Excellent always satisfied when I leave the dealership. Salesman Matt Kreckler and Service Advisor Craig Pozarski very efficient and knowledgeable. A pleasant experience as usual.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Had an amazing experience with Bryan Villalobos and Kevin
Had an amazing experience with Bryan Villalobos and Kevin Abraham! I’m from out of state and I ended purchasing a truck from here. They were super nice, very professional, very knowledgeable, kept great communication, and were ready and willing to work with me. I truly appreciate their hard work and I couldn’t be more happy with the truck I bought from them. Everything was detailed and waiting right outside the dealership for my arrival. These guys are 10 out of 10 and super legit!






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Ms. B
Excellent, from the day I walked in to finance my truck every member from Sales to Finance were 100% committed to the sale. My process was hassle free


Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Best buying experience yet!
I bought my 2022 Wagoneer this week and could not have been happier with the entire experience. Joe, Brian, Chris, Krissy, and the finance team we’re all phenomenal. I have a lot of vehicle purchases under my belt and this team has without a doubt been the best. They have earned our business for years to come. Thanks to everyone on the team for making us feel like more than just a sale.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Nick Woods ROCKS!
Nick Woods ROCKS! Professional, COOL under fire, and willing to GO TO BAT for you! You just HAVE to try his "smooth as Silk" style! Also, LEVI MEGERDICHIAN in Finance gets an honorable mention ! THANK You All!






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Took my truck in for maintenance and decided to trade in
Took my truck in for maintenance and decided to trade in for new car. Jordan was very professional and patient. My 3rd time buying at Nissan Kenosha and won't be my last.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience from beginning to end!
Great experience from beginning to end!! Extremely knowledgeable great customer service actually the best customer service I've ever experienced would definitely buy another car from them and recommend them to friends and family.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I bought my Honda almost 3 years ago and I still come in
I bought my Honda almost 3 years ago and I still come in for service like oil changes and tire repairs, etc. Victor, who sold my me car, still recognizes me to this day and always goes out of his way to say hi and see how I’m doing! If I need help with anything he certainly is there. Service is always fast and efficient, I’m always getting a good deal. I have worked in banking for 8 years- dealerships are not our friend, but Zeigler Honda is mine! Would never go anywhere else! Thank you Victor and Honda for a long lasting satisfaction and customer relationship.
Used
2020 GMC Sierra 1500
Vehicle information
Features
Reviews
I had an awesome experience at this dealership.
I had an awesome experience at this dealership. Everyone I dealt with was very friendly and helpful. There was no need to haggle over pricing, they were upfront and fair in not only the cost of the vehicle I purchased but the trade in I had was priced more then fair. I live in Milwaukee and it was well worth the trip to Waukesha!!!
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Used
2020 GMC Sierra 1500 AT4
Vehicle information
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Used
2020 GMC Sierra 1500 Base
Vehicle information
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Used
2020 GMC Sierra 1500 SLT
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Used
2020 GMC Sierra 1500 SLE
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Used
2020 GMC Sierra 1500 Elevation
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Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLE
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Used
2020 GMC Sierra 1500 Elevation
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Used
2020 GMC Sierra 1500 AT4
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GMC Sierra 1500 prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Sierra 1500 | $65,280 | |
2025 GMC Sierra 1500 | $53,307 | 3 Good deals |
2024 GMC Sierra 1500 | $58,674 | 18 Good deals |
2023 GMC Sierra 1500 | $49,797 | 5 Great deals |
2022 GMC Sierra 1500 | $44,666 | 28 Good deals |
2021 GMC Sierra 1500 | $37,721 | 16 Good deals |
About the 2020 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 17
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

How much does the 2020 GMC Sierra 1500 cost?
The 2020 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 1500 is $35,929, with pricing starting at $1.
What is the MPG of the 2020 GMC Sierra 1500?
The 2020 GMC Sierra 1500 offers up to 15 MPG in city driving and 21 MPG on the highway for a combined rating of 17 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 trim, driving conditions, driving habits, vehicle maintenance, and other factors.
Is the 2020 GMC Sierra 1500 reliable?
The 2020 GMC Sierra 1500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 1500 owners.
Is the 2020 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2020 GMC Sierra 1500.
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
91% of drivers recommend this car
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
AT4 (3 styles)
Style | ||
---|---|---|
4WD Double Cab 147" AT4 | 4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
Inventory price | ||
Starting at $51,300 | Starting at $54,000 | Starting at $53,700 |
Combined MPG | ||
18 | 18 | 18 |
Engine | ||
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Base (8 styles)
Style | |||||||
---|---|---|---|---|---|---|---|
4WD Crew Cab 157" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Double Cab 147" | 2WD Crew Cab 157" | 4WD Crew Cab 147" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
Inventory price | |||||||
Starting at $39,500 | Starting at $33,500 | Starting at $35,900 | Starting at $36,800 | Starting at $36,200 | Starting at $39,200 | Starting at $34,200 | Starting at $29,600 |
Combined MPG | |||||||
20 | 20 | 20 | 20 | 20 | 20 | 17 | 17 |
Engine | |||||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) |
Denali (4 styles)
Style | |||
---|---|---|---|
2WD Crew Cab 157" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali | 2WD Crew Cab 147" Denali |
Inventory price | |||
Starting at $55,400 | Starting at $58,600 | Starting at $58,900 | Starting at $55,100 |
Combined MPG | |||
19 | 18 | 18 | 19 |
Engine | |||
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) |
Elevation (6 styles)
Style | |||||
---|---|---|---|---|---|
4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 2WD Crew Cab 157" Elevation | 2WD Crew Cab 147" Elevation | 4WD Double Cab 147" Elevation | 4WD Crew Cab 147" Elevation |
Inventory price | |||||
Starting at $46,500 | Starting at $40,500 | Starting at $43,200 | Starting at $42,900 | Starting at $43,800 | Starting at $46,200 |
Combined MPG | |||||
20 | 21 | 21 | 21 | 20 | 20 |
Engine | |||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (6 styles)
Style | |||||
---|---|---|---|---|---|
2WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 4WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 4WD Crew Cab 147" SLE |
Inventory price | |||||
Starting at $40,700 | Starting at $38,000 | Starting at $41,300 | Starting at $40,400 | Starting at $44,000 | Starting at $43,700 |
Combined MPG | |||||
21 | 21 | 20 | 20 | 20 | 20 |
Engine | |||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLT (6 styles)
Style | |||||
---|---|---|---|---|---|
4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT | 4WD Double Cab 147" SLT | 2WD Double Cab 147" SLT | 2WD Crew Cab 157" SLT |
Inventory price | |||||
Starting at $50,400 | Starting at $46,900 | Starting at $50,700 | Starting at $48,000 | Starting at $44,500 | Starting at $47,200 |
Combined MPG | |||||
18 | 19 | 18 | 18 | 19 | 19 |
Engine | |||||
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) |
*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.
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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.