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Used
2020 GMC Sierra 1500 trucks
for sale
near
Atascocita, 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
I rated the dealership separately, But I wanted to give
I rated the dealership separately, But I wanted to give special attention to the sales person and finance individual. The person who handled the sales process, Karl Alfeld Internet Manager, and JR, Fnance, in addition to the service department. They answered every question, provided a printout of the findings of the 40 point inspection and actions taken, demonstrated the cars features and handled the finance expeditiously. I would rate them a 10. At the age of 85, I've had a lot of experience with sales organizations and have rarely experienced this level of cooperation & forthrightness.
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 AT4
Vehicle information
Features
Reviews
Very pleasant and informative experience.
Very pleasant and informative experience. Advisor kept me informed and was very polite. I will go back for future repairs. The accommodations and waiting area was very nice. Even during times when my advisor was not available, there was others readily available who step up to assist me.
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
Buyer
Our salesman did a excellent job showing us all the vehicles features and assisting us in our purchase! We highly recommend him to anyone looking for a vehicle!
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
The service was great and was much better than waiting at
The service was great and was much better than waiting at the dealership. Jeff was great he suggested the service and I really liked it.
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!






Vehicle information
Features
Reviews
I knew David Simpson from church and he was very
I knew David Simpson from church and he was very professional in handling of the sales process. The financing and other processes were smooth and professional.
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 AT4
Vehicle information
Features
Reviews
Everything went well.
Everything went well. I guess if I have to write 25 words I can go on and on about nothing. These reviews are not true reviews if you or the survey company are setting the boundaries.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Very Positive experience.
Very Positive experience. Buying process could have been a little quicker but they also had to evaluate me trade. Ask for Dee Burns. I really enjoyed my experience working with him.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Alex was very communicative and I got my vehicle in a
Alex was very communicative and I got my vehicle in a timely manner. Nice person to work with.






Vehicle information
Features



Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I recently purchased a used veh.
I recently purchased a used veh. from DeMontrond, and when I tell you! Super professional, and helpfull. These ladies and gentelmen have it together. Awesome below market pricees. And the forever warranty!






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
II adore my new car; my ex had promised to buy me one but
II adore my new car; my ex had promised to buy me one but ended up taking everything instead because he?s a coward. However, God witnessed it, and I couldn?t be happier. Thanks to BMW finance, I acquired the car I?ve desired since Miami, and I?m completely in love with it. I feel like I?ve made an excellent choice. I won?t go anywhere else. The process was straightforward, and I had a fantastic salesperson along with a great finance guy. I would recommend everyone to go there; they are incredible and can help you get your car. I hope you find your next car there and feel as happy as I do.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Only complaint I have is when I first got there no one
Only complaint I have is when I first got there no one would help me. All salesman might have been busy but Hector Rincon helped me and it was wonderful after that. THANKS HECTOR!






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






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.
Vehicle information
Features
Reviews
Gullo Toyota of Conrow
Rob Comstock has been an excellent help to us in regards to our new car purchase (both of them). We are very pleased with our new Rav4. We cannot thank everyone at Gullo enough for helping us exchange the Prius we originally purchased (which it turned out was not the right car for us) for the Rav4. Please thank Mitch Ericson for processing our paper work twice. Also, extend our thanks to Mr. Grice who spent a great deal of time going over all the features of the Rav4. We went to Gullo because your on line customer service rating was four and a half stars. I am so glad we did. I'm not sure any other dealer would have been willing to exchange cars after purchase just to make a very short old lady feel comfortable and save while driving. I have responded to Toyota's survey and have let them know how great your dealership was to deal with. Thank you again.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I just leased my 2024 Gladiator Rubicon and they were
I just leased my 2024 Gladiator Rubicon and they were great, from the sales person Isaac Ramirez, Zen in the finance department and Aladdin in service department. Thank you guys! And btw, super nice job on the spray on bed liner.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Me atendieron muy bi�n, no ten�a cita y como quiera me
Me atendieron muy bi�n, no ten�a cita y como quiera me tomaron mi carro,me hicieron recomendaciones muchas gracias,seguir� llevando mi carro para servicio.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Valet service for pick up and return of my vehicle was
Valet service for pick up and return of my vehicle was the best. On time and communication was by text and very informative. Good job. I will use the valet service and Planet Ford in Spring again. Thank you.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My salesman was excellent .
My salesman was excellent . Provided everything I asked for . The sale was flawless . When you have a survey that makes a person write more than what I want it?s ridiculous. You should have the freedom to keep it short and sweet .
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Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
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Used
2020 GMC Sierra 1500 SLT
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Used
2020 GMC Sierra 1500 AT4
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Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
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 SLT
Vehicle information
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $41,605 | |
2025 GMC Sierra 1500 | $31,499 | 6 Great deals |
2024 GMC Sierra 1500 | $36,540 | 22 Good deals |
2023 GMC Sierra 1500 | $33,995 | 23 Good deals |
2022 GMC Sierra 1500 | $31,991 | 13 Good deals |
2021 GMC Sierra 1500 | $27,950 | 21 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 $36,871, with pricing starting at $14,681.
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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2020 GMC Sierra 1500 by body style
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