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Used
2020 GMC Sierra 1500 trucks
for sale
near
Terrell Hills, 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 Denali
Vehicle information
Features
Reviews
Took about 2-1/2 hours.
Took about 2-1/2 hours. No appointments for routine service. Done in time promised and while my wife waited. However, they called me to let me know the vehicle was ready because they didn't know she was in the waiting room.
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
Nice experience.
Nice experience. Good service. Sales personnel were helpful and friendly. The individual who explained to us all the new technology was knowledgeable and very patient. Overall, a positive experience.
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 SLT
Vehicle information
Features
Reviews
Tommy was my salesman, I had seen vehicle late evening
Tommy was my salesman, I had seen vehicle late evening and submitted for a 10am test drive. Long story short drove out of there with vehicle by noon the next day.
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
Joseph always does a great job!
Joseph always does a great job! Everyone here goes out of their way to make things so easy. That?s why we love coming here.
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
Satisfied Customer
I happened to view the sight and seen 3 cars to my liking. I was called immediately. Danny K actually got the ball rolling and transferred the vehicle from A to B in less then a week. My husband and I were just going to see the car and fell in love. We drove her home that night. The process was extremely quick.
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 was really impressed with the service I received.
I was really impressed with the service I received. As soon as i drove up, there was someone to greet me and they immediately did some testing. I was assigned ONE specific person to work with and that person was available to answer questions via text or phone. They even paid for an Uber to take me home!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
5 Stars – A Truly Exceptional Experience.
5 Stars – A Truly Exceptional Experience. I had been searching across Texas for weeks, looking for a specific Yukon in a certain trim that was clearly in high demand—only ten or so were available statewide. Most dealers I contacted were either marking up the price well over MSRP and/or adding thousands in unnecessary extras. Then I came across the exact model and trim I wanted on GMC’s website, which showed it was in transit to Cavender GMC West. From there, the experience couldn’t have been smoother. I quickly found the vehicle on Cavender’s website and submitted an online price request. I got an instant response—and to my surprise (and Cavender's credit), they were offering the vehicle below MSRP with no dealer add-ons. A few minutes later, I received a call from Brandon Guzman. He confirmed the price without hesitation. No games, no changes—just total transparency. I asked if I could put down a deposit to hold the vehicle, and Brandon made it happen that evening. Over the next ten days, while I waited for it to arrive, Brandon stayed in touch. As soon as it landed, he called to let me know it would be ready the next day. I drove down from Austin to San Antonio, and when I arrived, the vehicle was freshly detailed, fully gassed up, and waiting for me to take it home. The paperwork took less than 40 minutes. No upselling. No pressure. Just a smooth, easy transaction. Brandon took the time to walk me through all the vehicle’s features and answered every question I had. I was back on the road within an hour and twenty minutes. He even texted me the next day just to check in, make sure everything went well on the drive back, and confirm that I had everything set up the way I wanted. I’ve purchased nine vehicles from seven different dealerships in my lifetime—this was easily one of the best buying experiences I’ve had. Brandon Guzman was honest, responsive, and incredibly easy to work with. Cavender GMC West runs a professional, customer-focused operation from start to finish. I’ll be back when it’s time for my next GMC—no question about it.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
David Collins is great!
David Collins is great! I have nothing but respect for him. He?s honest with the whole process, regarding repairs. I wouldn?t want to work with anyone else.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Josue from Cavender in San Antonio was the sales agent
Josue from Cavender in San Antonio was the sales agent helping me on my transaction, I live out of San Antonio however he did everything he could to get me all the info needed , pictures of my vehicle and even videos! I?m very happy with the outcome and I strongly recommend him for future purchases!
Used
2020 GMC Sierra 1500 FLEET/BASE
Vehicle information
Features
Reviews
Jacob Limon went out off his way to get us the best
Jacob Limon went out off his way to get us the best vehicle he could find for us that made payment lower that I expected. He’s a good access to your company.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great experience!
Great experience! Salesman Nate, was superior! We are very pleased with our purchase! Many thanks to Ancira!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Exceptional Service Every Time!
Exceptional Service Every Time! I consistently receive outstanding service at Gillman Honda, thanks to the exceptional dedication of Tobin Coker. His knowledge, honesty, and unwavering commitment to customer satisfaction truly sets him apart. Recently, I visited the dealership because I was unable to unlock my glove compartment. Believing I might need a new set of keys, I turned to Tobin, my go-to service advisor for all my car maintenance needs. Despite his busy schedule, Tobin took the time to assist me personally. He checked the glove compartment with my existing key and went the extra mile to help me purchase a new one. Tobin always makes me feel like I’m his only customer, providing personalized attention and ensuring all my concerns are addressed. His professionalism and commitment to excellence make him an invaluable asset to the Gillman Honda Service Department. Thank you, Tobin, for consistently going above and beyond! M ALEXANDER
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great service, as always!
Great service, as always!! Purchased from Ancira and all service work has been done here. I have recommended this dealership to all my friends and family and several have purchased from here.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $61,122 | |
| 2025 GMC Sierra 1500 | $54,048 | 3 Good deals |
| 2024 GMC Sierra 1500 | $57,838 | 9 Great deals |
| 2023 GMC Sierra 1500 | $50,110 | 5 Great deals |
| 2021 GMC Sierra 1500 | $34,204 | 12 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 $35,206, with pricing starting at $15,995.
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.
Research the 2020 GMC Sierra 1500
Compare the 2020 GMC Sierra 1500
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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.
