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Used
2020 GMC Sierra 1500 trucks
for sale
near
Frisco, 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 AT4
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very friendly and professional.
Very friendly and professional. Great service and had everything done in about 45 minutes . I am always very happy with the service department .
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 Denali
Vehicle information
Features
Reviews
Over the years, I have heard quite a few unsatisfactory
Over the years, I have heard quite a few unsatisfactory comments about Patt Lobb Toyota, well let me say that I personally think that they are from unhappy people! Whenever I’ve had any hiccups from the dealership, either during dealing with a car purchase or service, they have taken the correct action to resolve the situation! The dealership, in my opinion is second to none. Today my service appointment seemed to shoot by, it only took 25 minutes. Thank you for being one of the few honest dealerships I have dealt with.
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
Trae was outstanding in his customer service.
Trae was outstanding in his customer service. He listened to what we needed as well as wanted in a car and delivered. He made the buying experience one that normally is a stressful time into a relaxing one.
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
My 1st Mercedes, Very Happy all around!!
I bought my first Mercedes from Ride N Drive, excellent car, deal and service! Transaction was fast and very easy, no complaints!! Honest dealer with excellent Customer Service, cars and choices! I would buy from them again!!
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Young?
Young?s dealership was very helpful and was very accommodating in the process of buying my 2025 Chevrolet Trax Active , the car is a beautiful car and i am sure i will be pleased with my purchase
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Choose this Dealership
The dealership was amazing. Everything worked seamlessly, the people were friendly and knowledgeable, and they have great products. We leased a GV80, and it is a dream car. Also, the service offered for the first 3 years is amazing. No need to go to the dealership, they come to you with a loaner Genesis. WOW
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.
Vehicle information
Features
Reviews
Fantastic experience.
Even in these trying times they made the whole experience easy and painless. From our sales agent Trent to the financial guru Brian, everyone was friendly and helpful. They are 96 miles from us and I would not hesitate to make the trip again if they have something I want. We'll worth the trip.
Vehicle information
Features
Reviews
Excellent service with Chris on buying the Bema, I
Excellent service with Chris on buying the Bema, I enjoyed working with him on all aspects before and during the process of getting the Car.
Certified
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great customer service from Aly he is great and very
Great customer service from Aly he is great and very friendly and know how to make the customer happy and satisfied
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Certified
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Appt was easy and I was accepted early.
Appt was easy and I was accepted early. Work was done as promised and repair was done under warranty without asking. Service rep was very attentive.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Robbie, my salesman, was outstanding!
Robbie, my salesman, was outstanding!! He made it painless and is absolutely customer focused. Pricing was ultra-competitive. Dealership was clean. We will definitely go back.
Vehicle information
Features
Reviews
I was considering trading in my 2013 Mini Cooper even
I was considering trading in my 2013 Mini Cooper even though I was having no problems and had low mileage. Went to Mini of Dallas and found one of the few 2025 convertibles. The staff was great, good pricing and no pressure. Low interest rate with the purchase of a new vehicle. Would recommend this dealership.
Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Several sales personal where informative and
Several sales personal where informative and knowledgeable in customer service. I didn’t purchase a vehicle but will give Vanguard the first choice at sales.
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Nice sales people.
Nice sales people. Easy to work with, but would not move on the price of the car.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $59,763 | 5 Great deals |
| 2025 GMC Sierra 1500 | $54,201 | 25 Great deals |
| 2024 GMC Sierra 1500 | $50,999 | 11 Great deals |
| 2023 GMC Sierra 1500 | $45,421 | 59 Good deals |
| 2022 GMC Sierra 1500 | $41,533 | 20 Good deals |
| 2021 GMC Sierra 1500 | $34,899 | 10 Great deals |
| 2019 GMC Sierra 1500 | $33,043 | 16 Good deals |
| 2018 GMC Sierra 1500 | $26,820 | 14 Good deals |
| 2017 GMC Sierra 1500 | $22,216 | 8 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 $33,964, with pricing starting at $14,999.
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 cab style
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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.