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Used
2020 GMC Sierra 1500 trucks
for sale
near
Four Corners, TX
- 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 SLT
Vehicle information
Features
Reviews
Kyle and his team did amazing as we have come to expect.
Kyle and his team did amazing as we have come to expect. This visit was for new tires. Blessed to have this team to service our vehicles.
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 SLT
Vehicle information
Features
Reviews
Kamran sold me my car.
Kamran sold me my car. He?s the best ! This is the first time I?ve purchased a vehicle and got everything I wanted and more !
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.






Vehicle information
Features
Reviews
When buying a new car is not on your BINGO card When the
When buying a new car is not on your BINGO card When the devil gets really busy Greenway Mazda knows how to come through! Great Job including Melissa who's name I didn't see!
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.






Vehicle information
Features
Reviews
I have been going to Freddy Kia for years ever since
I have been going to Freddy Kia for years ever since there were on the Gulf Freeway .They make me feel like family. There are nothing but good people there. I would recommend everyone to give them a shot ,you will not be disappointed.
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
Thank you Erick Acosta, to find a best car for me.
Thank you Erick Acosta, to find a best car for me. Am very satisfy with your services ,thank you America's Xtreme Auto.
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
I cannot recommend this location enough after the
I cannot recommend this location enough after the excellent service and very good experience I had with my first time financing a vehicle. Cesar Rodriguez and Raul Silva both worked with me to find a vehicle that suited my needs within my price range. These gentleman were extremely patient and professional when handling the sale. I would also like to thank Mark and Brandon in financial services. They both persisted through technical difficulties in order to deliver excellent customer service all the way to the end. I would absolutely recommend this location if you’re in the market for a used vehicle and I will be returning in the future!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My family always has an excellent experience at this
My family always has an excellent experience at this dealership. My family has bought nine vehicles from this dealership over the past twenty five years.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Ms Jessica in service was knowledgeable and kind and made
Ms Jessica in service was knowledgeable and kind and made experience pleasant. She arranged my appt, uber home and back and details of my service






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The experience was very helpful & very informative.
The experience was very helpful & very informative. I was happy to have assistance with the salesperson who helped me look for the vehicle I was interested in. The service team was outstanding. I was very impressed with the knowledge and experience that was able to help me at any given time. I was also impressed by how quick and reliable the service was and I would absolutely recommend them to any family or friend who would be interested in purchasing a vehicle






Vehicle information
Features
Reviews
Akintunde Ayinde
They have excellent work and give a very good support during and buying vehicle. They take arround to chose your choice. Every working are very supportive.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
They were very helpful and made the process go through
They were very helpful and made the process go through smoothly. When I go to get my vehicle serviced, they provide great service. The staff is respectful.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Pappy
Outstanding service. Very positive attitude?s and genuine concern for me as and individual and my vehicle.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
They have such great cars.
They have such great cars. Matthew Gaitan was very professional, and very humble . Thank you so much America's Xtreme Auto.






Certified
2020 GMC Sierra 1500 SLT
Vehicle information
Reviews
Best experience in buying a car. I will recommend
Everything was ready for me when I arrived. Adolfo was very helpful explaining all the details about the car and answering all my questions, very professional.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
PERFECT 10
One of the better truck buying experiences I have had.. Was in and out in couple hours. They don’t waste your time or chip away at your credit shotgunning applications all over the planet. I spent fair amount of time shopping around Houston. Traded in my 1500 for 2500. Rick by far has the best prices and nicest trucks in town. Hats off to these guys






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I commend Mr Khan Vu for his excellent costumer service.
I commend Mr Khan Vu for his excellent costumer service. His dedication and professionalism in dealing with his clients in making sure they are completely satisfied is superb.






GMC Certified
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
John Ivanic goes above and beyond!
John Ivanic goes above and beyond! He made the process super easy and went very smooth. He also made sure to help me set up onstar and show me how to do initial set up in the truck.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Good service!
Good service! Clean car after service and all problems resolved. good communication and amenities offered. would return to have my very own truck GMC 2500 serviced here again






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Hector and Christopher were exceptional!
Hector and Christopher were exceptional! I am particularly impressed with the dealership?s services. This transaction marks my second purchase within the past five years, and I highly recommend them. My financial representative secured a favorable rate for me, and I am very satisfied with the experience.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience and service from sales.
Great experience and service from sales. I?m a repeat buyer from this dealership. Always a god experience with this sales group. Purchased and new truck. Thank you.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $30,305 | 3 Good deals |
2024 GMC Sierra 1500 | $31,600 | 35 Good deals |
2023 GMC Sierra 1500 | $34,995 | 6 Great deals |
2022 GMC Sierra 1500 | $36,545 | 6 Good deals |
2021 GMC Sierra 1500 | $28,995 | 19 Good deals |
2019 GMC Sierra 1500 | $26,472 | 5 Good deals |
2018 GMC Sierra 1500 | $21,891 | 7 Good deals |
2017 GMC Sierra 1500 | $15,795 | 3 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 $37,640, with pricing starting at $16,481.
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.
What are some similar vehicles and competitors of the 2020 GMC Sierra 1500?
The 2020 GMC Sierra 1500 compares to and/or competes against the following vehicles:
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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Used 2020 GMC Sierra 1500 by body style
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