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Used
2020 GMC Sierra 1500 trucks
for sale
near
Keller, 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
Excellent service!
Excellent service! Got em exactly what I wanted and quick no xx. Nick J is awesome!
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
I recently bought my Corvette from Corvette Warehouse and
I recently bought my Corvette from Corvette Warehouse and worked with Wes. He made the entire process incredibly easy from start to finish. I had the car shipped from Dallas, Texas to Irvine, California, and they handled all the paperwork and transport details for me. The whole process was seamless, and I loved that the shipment was fully tracked the entire way. The car arrived in perfect condition. Honestly, it looked even better than it did online! No issues whatsoever, just a smooth and professional experience all around. If you’re looking for a Corvette and want a stress-free buying process, definitely ask for Wes. He’ll take great care of you!
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
Christina is awesome!
Christina is awesome! Car repair was complete and everything is great. Easy in and out
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
Vehicle information
Features
Reviews
I purchased a 2018 BMW 650xi from Top Line Auto in
I purchased a 2018 BMW 650xi from Top Line Auto in February 2024. Don't let the size of this dealership fool you. This is an enthusiasts' paradise. So many high end, high quality vehicles in their showroom to fall in love with. My sales rep, Aleks, went above & beyond to get me into my new baby. He even recommended a lender that beat the market interest rate based on my credit score. The experience was a blast & I can't recommend them enough.
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I recently had an airbag recall & the service was
I recently had an airbag recall & the service was outstanding. All technicians were friendly & helpful with impeccable customer service. I will definitely come again. THANKYOU
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I went in and looked at truck drove the truck and came
I went in and looked at truck drove the truck and came back after they got me financed, and it ended up taking the truck home. Great experience. I recommend them to anyone. They're looking for a nice truck.
Used
2020 GMC Sierra 1500 SLT
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Reviews
Great deals!
I have shopped around for trucks for quite some time. I found that this dealership had the best prices!! Also its worth the mention that they didn't haggle with you on your trade in and give a very fair price!! After much time working with dealerships this dealership was by far the best !!
Used
2020 GMC Sierra 1500 Denali
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Reviews
TLDR; AutoSavvy of Duncanville is a 10/10 car dealership,
TLDR; AutoSavvy of Duncanville is a 10/10 car dealership, I would recommend it to anyone looking for a good deal on a used car. My salesperson, Tyler, was willing to work with me on my first car loan and was very reasonable and accommodating. The trade in amount on my old cash car was also very reasonable. I did do a VIN history check on the vehicle before buying it (all vehicles at AutoSavvy have branded titles, it’s their whole thing) and the nature of the damage was a minor front-end collision which was admirably repaired by the AutoSavvy team. I personally must advise against purchasing any vehicles with major structural or water damage, so the VIN history check is important. The vehicle was very reasonably priced for the age and mileage, and the 100,000 mile limited powertrain warranty provides me a lot of peace of mind. The experience was very pleasant and relaxing, come here if you’re looking for a use car!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Jeremy was incredible and made the process of buying a
Jeremy was incredible and made the process of buying a new car so easy. When it’s time for a new car, he will be my go to salesman.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very responsive, honest and up front with their pricing
Very responsive, honest and up front with their pricing and they took care of all my questions
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Drew was there from our first call until we went home
Drew was there from our first call until we went home with a new Chevy. He worked hard to get us where we needed to be financially. Explained everything we needed to know about the vehicle we purchased. Drew was also there for some follow up calls, very patient and kind. We will definitely return for our next vehicle
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Easy experience
Julian was a great salesman. Gave me some off on the price, and gave me some extra on the trade-in we had, so I got to the price I was looking for. Genuinely nice dude who was great to work with! I bought a 2019 Ford Explorer because I found their website and it was the best price.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Buying Bronco Sport
Miguel was awesome and very helpful! He answered all my questions and was very patient. I had a pleasant buying experience at 5 Star Ford in Lewisville, and definitely would recommend.
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
You don't find quick service like at McAndrews.
You don't find quick service like at McAndrews. So glad that DeMeon was my sales person! He answered all my questions and made sure all documentation was ready to go when I arrived. Was treated so nice. Thanks to Steve as well! First time customer. I will be doing years of business with this dealership. Thanks!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Easiest Car Purchase To Date
I was searching for a new/used car. I used Cars.com to search for a Toyota Highlander. Carmax in Ft. Worth, TX was one of my choices. The car shown online was EXACTLY as shown when I saw it-the pics and details provided about the car were so accurate, there wasn't a need for alot of "wheeling and dealing". I emailed Carmax regarding my interest, late at night. Not only did I receive an email within 1 hour, the next day I received a phone call from Mr. Ben Arbour, the person who would eventually sale me the car. He walked me through their process, got me pre-approved over the phone, so that all that was left to do when I got to the office was to get the trade-in value on the car I was trading, test drive the new car & sign paperwork to purchase. I bought a 2010 Toyota Highlander that was a 1 owner car with approx. 13,700 miles. I recommend Carmax to anyone looking to get another car. They were great!!! The customer service is GREAT!!!
Used
2020 GMC Sierra 1500 Elevation
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Reviews
Great experience, and absolutely love our car and the
Great experience, and absolutely love our car and the service we received! Isaac showed up on his day off just to deliver our car to us. Excellent service!
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My car buying experience was great.
My car buying experience was great. Edwin my salesman was awesome. He answered all of our questions. Was easy to deal with and made the car buying process painless. Did an amazing job on the walk around and delivery making sure to set up my phone, GMC app and demonstration all the features before leaving the lot. Ron in finance was great as well. Overall I am completely satisfied with the purchase of my new vehicle from Hiley GMC. Sincerely a 100% satisfies and loyal customer for life, Tony Bruncati
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Brendan Vetter, and Anthony Williamson are the best team
Brendan Vetter, and Anthony Williamson are the best team of sales experts to work with. Made the whole process of car buying simple, understandable and hassle free. Found what I was looking without even knowing what I was looking for lol. Great deal and prices. Enjoyed every moment
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
This service involved oil change and check of vehicle to
This service involved oil change and check of vehicle to be travel-ready, plus State Inspection and a Recall Notice repair. The Staff were thoughtful in their approach and there was consistent communication throughout the the process. The Valet staff made delivery easy and a pleasant experience.
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $57,110 | 3 Good deals |
| 2025 GMC Sierra 1500 | $49,959 | 20 Great deals |
| 2024 GMC Sierra 1500 | $49,103 | 16 Great deals |
| 2023 GMC Sierra 1500 | $45,023 | 12 Great deals |
| 2022 GMC Sierra 1500 | $38,681 | 17 Great deals |
| 2021 GMC Sierra 1500 | $34,964 | 21 Great deals |
| 2019 GMC Sierra 1500 | $30,801 | 21 Good deals |
| 2018 GMC Sierra 1500 | $23,857 | 7 Good deals |
| 2017 GMC Sierra 1500 | $24,214 | 7 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 $33,794, 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.
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GMC Sierra 1500 2020 SLT
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2020 GMC Sierra 1500 by body style
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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.
