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Used
2020 GMC Sierra 1500 trucks
for sale
near
Southside Place, 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.






GMC Certified
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Gil Campos was a very professional service advisor with a
Gil Campos was a very professional service advisor with a lot of knowledge. He explained everything that my truck was recalled for and told me it would take a few days to get it done. Everything worked out like he said
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
All the staff at the service station were helpful and
All the staff at the service station were helpful and professionally knowledgeable. The service and other work done very fast & timely manner. Updating the vehicle status by text message is very helpful ????Thank you all for your Great service ??
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
Salesman responded to my inquiry about a RAM truck within
Salesman responded to my inquiry about a RAM truck within 1 day of me submitting it.
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
Nexcar
Thanks to Tee and Charles I was able to get the vehicle I always wanted, great customer service, they treated me like family
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 AT4
Vehicle information
Features
Reviews
Muhammad Abbasi, was a great person, am very satisfy with
Muhammad Abbasi, was a great person, am very satisfy with their work . 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
Our company recently purchased two Land Rovers, and I
Our company recently purchased two Land Rovers, and I want to extend my sincere thanks to Vanessa, Melissa, Daniel, and their team for making the entire process seamless. Despite our hectic schedule, they handled everything with efficiency and care, turning what could have been a stressful experience into an enjoyable one. Their exceptional service has truly made us lifelong clients. We appreciate all that you do—thank you again!






Vehicle information
Features
Reviews
Great service, they treated my car so nice.
Great service, they treated my car so nice. Love the waiting area they had snack and coffee






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Alex was super professional, very personable, understood
Alex was super professional, very personable, understood our needs and wants and delivered! We had a great experience and would highly recommend to any of our friends.






Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
The sale person Ted Dowell was very knowledgeable and
The sale person Ted Dowell was very knowledgeable and made the process very smooth. He has followed up to make sure that we are satisfied.






Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great service
Great service from Chris and Brandon in katy! Great selection of trucks, will return soon. Nice offices too. Not pushy at all, good finance offers too






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Jhonathan and his manager were seriously the best and
Jhonathan and his manager were seriously the best and friendliest salesman that I have ever had the pleasure of working with. When I buy a vehicle, I shop around for weeks/months. No one was willing to deal with what my main goal was and what I wanted and if they did, they were extremely rude and non personable. I would highly recommend Jhonathan for all your car buying needs.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I just got new Equinox EV with good discounts and payment
I just got new Equinox EV with good discounts and payment rate applied for... But car cleanup n readiness should be a bit better for delivery.






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Alex me explico el servicio y me atendieron de inmediato
Alex me explico el servicio y me atendieron de inmediato y el servicio fue de muy buena calidad






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Tommy Yeamans is very nice and willing to answer all my
Tommy Yeamans is very nice and willing to answer all my question. He also share all information about the car and title. reccommended.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
What a fantastic buying experience at Helfman Ford in TX.
What a fantastic buying experience at Helfman Ford in TX. We were shopping online, out of state purchase, and had the pleasure of working with Richard Baxley who went way above and beyond. He kept us informed during the whole process and even more important followed up diligently during the delivery and when we took possession of the vehicle. Of course he then followed up yet again. I tip my cap to the dealership and Richard on a great buying experience!






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
Good customer service.
Good customer service. Everything was well explained and the process was seamless. The staff were helpful and very knowledgeable and professional. Will definitely do business with them again.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
buying at car max
As a retired tx DPS mvi trooper through my 30 years dealing with dealers carmax is most caring dealer. When we went to car max on gulf freeway to look for a new vehicle the salesman were very caring and helpful to find the velociraptor we wanted. We bought a 2916 Honda CRV with 10 mikes on the vehicle. We bought it. Service group was also caring and helpful. Keep up the good work. Larry parks.






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
This was my second vehicle purchase from Autonation.
This was my second vehicle purchase from Autonation. The buying process and sales team are very experienced and knowledgeable. I believe my trade was fairly evaluated and the new vehicle price was very competitive,
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $43,575 | |
2025 GMC Sierra 1500 | $32,790 | 5 Good deals |
2024 GMC Sierra 1500 | $31,991 | 14 Great deals |
2023 GMC Sierra 1500 | $31,995 | 9 Great deals |
2022 GMC Sierra 1500 | $35,981 | 14 Good deals |
2021 GMC Sierra 1500 | $27,995 | 9 Great 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 $37,479, with pricing starting at $14,928.
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.
Research the 2020 GMC Sierra 1500
Compare the 2020 GMC Sierra 1500
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