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*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.
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Used
2020 GMC Sierra 1500 SLE trucks
for sale
near me
- 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 SLE
Vehicle information
Features
Reviews
I was very satisfied with Zaid and the rest of the staff
I was very satisfied with Zaid and the rest of the staff at Twins Auto of Dublin. They have a great selection of used cars that tend be "higher end". Zaid was extremely knowledgeable about every brand and model. He wasn't overly pushy, which I appreciate. They were quick, painless, and fair when it came to negotiation and the financials.
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 SLE
Vehicle information
Features
Reviews
Austin Chapman is one of the most wonderful people I have
Austin Chapman is one of the most wonderful people I have ever met. Buying a car from him was a completely pleasant experience. He went above and beyond to make sure that I was happy. My happiness was so important to him that he again went above and beyond. He is a great asset to that dealership. Very impressive young man. Extremely professional, extremely polite, extremely compassionate, and absolutely loves his job and what he does. He made a difference for me and I hope that he makes a difference for many more. Thank you, Austin, you are amazing!
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.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 SLE | $50,560 | |
2025 GMC Sierra 1500 SLE | $39,503 | 5 Great deals |
2024 GMC Sierra 1500 SLE | $33,720 | 16 Great deals |
2023 GMC Sierra 1500 SLE | $30,400 | 10 Great deals |
2022 GMC Sierra 1500 SLE | $26,995 | 14 Great deals |
2021 GMC Sierra 1500 SLE | $20,482 | 14 Great deals |
2019 GMC Sierra 1500 SLE | $18,000 | 23 Great deals |
2018 GMC Sierra 1500 SLE | $9,967 | 31 Great deals |
2017 GMC Sierra 1500 SLE | $10,494 | 40 Great deals |
About the 2020 GMC Sierra 1500 SLE
SLE shown.
- Seating
- 6
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 21
- Transmission
- 10-Speed A/T
- Engine
- 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

How much does the 2020 GMC Sierra 1500 SLE cost?
The 2020 GMC Sierra 1500 SLE price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 1500 SLE is $30,694, with pricing starting at $22,490.
What is the MPG of the 2020 GMC Sierra 1500 SLE?
The 2020 GMC Sierra 1500 SLE offers up to 20 MPG in city driving and 23 MPG on the highway for a combined rating of 21 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 options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2020 GMC Sierra 1500 SLE?
The 2020 GMC Sierra 1500 SLE compares to and/or competes against the following vehicles:
Is the 2020 GMC Sierra 1500 SLE 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.
91% of drivers recommend this car
- Comfort 4.9
- Interior 4.8
- Performance 4.8
- Value 4.6
- Exterior 4.9
- Reliability 4.7
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) |
*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 Sierra 1500 trims
-
GMC Sierra 1500 2020 SLT
42 Great Deals out of 432 listings starting at $24,995
-
GMC Sierra 1500 2020 Denali
25 Great Deals out of 357 listings starting at $22,995
-
GMC Sierra 1500 2020 AT4
22 Great Deals out of 375 listings starting at $26,260
-
GMC Sierra 1500 2020 Elevation
18 Great Deals out of 171 listings starting at $18,791
-
GMC Sierra 1500 2020 Base
9 Great Deals out of 44 listings starting at $14,928
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