Used 2020 GMC Sierra 1500 for SaleNationwide
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 133,593
- Stock #:
- 9621A
- VIN:
- 3GTU9DEDXLG106577
2020 GMC Sierra 1500
SLT Crew Cab 4WD
133,593 mi
$25,240
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 50,415
- Stock #:
- H1958
- VIN:
- 1GTU9FET6MZ110985
2021 GMC Sierra 1500
Denali Crew Cab 4WD
50,415 mi
$43,793
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 62,885
- Stock #:
- 2613167A
- VIN:
- 1GTU9BED7MZ232482
2021 GMC Sierra 1500
SLE Crew Cab 4WD
62,885 mi
$32,560
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 100,959
- Stock #:
- CAB7471A
- VIN:
- 1GTP9EEL5MZ197592
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
100,959 mi
$31,934
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 70,281
- Stock #:
- C610304A
- VIN:
- 3GTP8DED7MG122592
2021 GMC Sierra 1500
SLT Crew Cab RWD
70,281 mi
$33,199
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 310 hp 2.7L I4
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 72,384
- Stock #:
- 31484
- VIN:
- 3GTP9GEK7MG460474
2021 GMC Sierra 1500
Elevation Standard Crew Cab 4WD
72,384 mi
$30,932
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- 8-Speed Automatic
- Mileage:
- 179,333
- Stock #:
- 158855
- VIN:
- 3GTU9DEDXKG158855
2019 GMC Sierra 1500
SLT Crew Cab 4WD
179,333 mi
$24,400
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black, Forge perforated leather seat trim
- Transmission:
- Automatic
- Mileage:
- 102,564
- Stock #:
- C529302
- VIN:
- 3GTU9FET5MG132508
2021 GMC Sierra 1500
Denali Crew Cab 4WD
102,564 mi
$31,390
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 107,587
- Stock #:
- KG169767
- VIN:
- 3GTU9DEL3KG169767
2019 GMC Sierra 1500
SLT Crew Cab 4WD
107,587 mi
$29,473
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 72,230
- Stock #:
- GT586B
- VIN:
- 1GTU9DED6MZ415478
2021 GMC Sierra 1500
SLT Crew Cab 4WD
72,230 mi
$36,548
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 77,360
- Stock #:
- 5586B
- VIN:
- 1GTU9FET5LZ200661
2020 GMC Sierra 1500
Denali Crew Cab 4WD
77,360 mi
$33,645
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Steel Metallic)
- Combined gas mileage:
- 20 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- 8-Speed Automatic
- Mileage:
- 23,272
- Stock #:
- 36858A
- VIN:
- 3GTP8DED0KG216083
2019 GMC Sierra 1500
SLT Crew Cab RWD
23,272 mi
$38,886
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 153,418
- Stock #:
- P9436
- VIN:
- 3GTU9DEL8LG131226
2020 GMC Sierra 1500
SLT Crew Cab 4WD
153,418 mi
$26,031
CarGurus Analysis:
2020 GMC Sierra 1500
With 6,274 currently listed for sale and an average price of $41,000.00, 30.7% of 2020 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 1500 4.28 / 5 stars.
76.6% of 2020 Sierra models on CarGurus are accident free.
The 2020 GMC Sierra 1500 features a spacious interior, advanced technology, and multiple powertrain options, including a powerful 6.2-liter V8 engine.
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 123,410
- Stock #:
- 25720
- VIN:
- 1GTU9DEL1MZ353575
2021 GMC Sierra 1500
SLT Crew Cab 4WD
123,410 mi
$26,790
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Satin Steel Metallic)
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 82,355
- Stock #:
- 26UG067
- VIN:
- 1GTU9CED7MZ209290
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
82,355 mi
$29,249
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 50,847
- Stock #:
- I065934
- VIN:
- 3GTU9CED8MG334430
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
50,847 mi
$39,271
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 20 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 97,496
- Stock #:
- OMU1603A
- VIN:
- 3GTP8CED2LG178416
2020 GMC Sierra 1500
Elevation Crew Cab RWD
97,496 mi
$28,910
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 45,492
- Stock #:
- P3445
- VIN:
- 1GTP9EEL5MZ425364
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
45,492 mi
$38,206
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 69,881
- Stock #:
- WP1332
- VIN:
- 3GTU9DED5LG364196
2020 GMC Sierra 1500
SLT Crew Cab 4WD
69,881 mi
$37,254
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Silver
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 89,403
- Stock #:
- LG107891
- VIN:
- 3GTP8DEDXLG107891
2020 GMC Sierra 1500
SLT Crew Cab RWD
89,403 mi
$30,986
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Pacific Blue Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 72,676
- Stock #:
- LG107468T
- VIN:
- 3GTU9DEDXLG107468
-$996
2020 GMC Sierra 1500
SLT Crew Cab 4WD
72,676 mi
$36,423
$35,427
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- DARK WALNUT/DARK ASH GRAY
- Transmission:
- 8-Speed Automatic
- Mileage:
- 54,865
- Stock #:
- T26226A
- VIN:
- 3GTU9FED0KG136746
2019 GMC Sierra 1500
Denali Crew Cab 4WD
54,865 mi
$36,000
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 31,615
- Stock #:
- 255545
- VIN:
- 3GTU9EET8MG332986
-$2,000
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
31,615 mi
$45,198
$43,198
CarGurus Analysis: 2020 GMC Sierra 1500
overall
Summary
With 6,274 currently listed for sale and an average price of $41,000.00, 30.7% of 2020 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2020 GMC Sierra 1500 4.28 / 5 stars.
76.6% of 2020 Sierra models on CarGurus are accident free.
The 2020 GMC Sierra 1500 features a spacious interior, advanced technology, and multiple powertrain options, including a powerful 6.2-liter V8 engine.
Why it stands out
The 2020 GMC Sierra 1500 stands out in the competitive pickup truck market due to its blend of comfort, capability, and advanced technology. With a choice of five engines, including a robust 6.2-liter V8 that delivers 420 horsepower, the Sierra 1500 caters to a wide range of needs, from daily commuting to heavy-duty towing, with a maximum towing capacity of 12,100 pounds. The truck's interior is designed with user-friendly technology, featuring a straightforward infotainment system that enhances the driving experience. Additionally, the Sierra's MultiPro tailgate and carbon-fiber bed showcase GMC's commitment to innovation and utility. While some users have reported issues with engine performance, the overall satisfaction among owners highlights the truck's strong performance and spaciousness, making it an appealing choice for both work and leisure.
Other model years to consider
- Average price: $41,000.00
- Good/great deal percentage: 32.4%
- User rating: 5 / 5
- Total listings: 9,349
- Average price: $41,000.00
- Good/great deal percentage: 33.3%
- User rating: 5 / 5
- Total listings: 9,705
- Average price: $41,000.00
- Good/great deal percentage: 33.3%
- User rating: 4.64 / 5
- Total listings: 9,680
This analysis is based on CarGurus' proprietary market data from July 27, 2026, CarGurus experts' opinions, and generative AI.
4.3 Overall rating
Filter by rating
Jeremy S
Reviewed a 2020 GMC Denali Crew Cab 4WD on Nov 23, 2024
Great truck, great value, awesome vehicle accessories package. Highly recommend this truck.
Rodney C
Reviewed a 2020 GMC Sierra 1500 on Jun 30, 2025
Body dented and scratches, former work truck , transmission shutter , definitely abused, four wheel clunks when engaged , not a good value
Deborah E
Reviewed a 2020 GMC Sierra 1500 on Aug 7, 2022
Absolutely stunning vehicle. Pure luxury pick-up truck. Serious power, w/a 6.2L V8 engine; smooth, wonderful ride, lots of driver convenience & safety features; comfortable seating, roomy cab interior....I could go on. GMC has left nothing out of their Sierra Denali line. Beautiful truck - everyone Ive talked to feels the same. Commanding presence on the road. Tops Dodge Ram & Ford models, in my opinion. I have a 2020 model. The 2023 model tops even THAT!!!
Garry R
Reviewed a 2020 GMC Sierra 1500 on Feb 12, 2022
Great design and tecnology. Spacious and smooth ride. Comfortable for passengers and driver. The Denali leaves nothing to be desired.
2020 GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| Elevation Double Cab 4WD | $43,800 |
| Elevation Crew Cab RWD | $42,900 |
| SLT Crew Cab RWD | $46,900 |
| SLE Crew Cab 4WD | $43,700 |
| Elevation Crew Cab 4WD | $46,200 |
| AT4 Crew Cab 4WD | $53,700 |
| Denali Crew Cab 4WD | $58,600 |
| SLT Crew Cab 4WD | $50,400 |
2020 GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2020 GMC Sierra 1500 prices has changed over time.
See more price trends2020 GMC Sierra 1500 Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest Prices in Chicago: The average price in Chicago, IL ($33,988) is the highest among the listed cities, indicating strong demand in urban markets.
- Lowest Prices in Dallas: Conversely, Dallas, TX ($31,655) offers the lowest average price, suggesting a more competitive market or higher inventory levels.
- Inventory Variation: Cities like Atlanta (656 listings) and Houston (643 listings) have substantial inventory, which may contribute to more stable pricing around the national average.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Chicago, IL | 623 | $33,988 |
| Philadelphia, PA | 495 | $40,249 |
| New York, NY | 470 | $33,001 |
| Los Angeles, CA | 370 | $32,820 |
| Dallas, TX | 219 | $31,655 |
| Houston, TX | 643 | $31,380 |
| Miami, FL | 377 | $30,600 |
| Washington, DC | 485 | $33,832 |
| Atlanta, GA | 656 | $32,027 |
| Boston, MA | 476 | $33,042 |
Pricing Analysis by Model Year
Key Insights
- Significant New-Car Premium: The 2026 GMC Sierra 1500 is priced at $60,511, which is approximately 58.5% above its MSRP, indicating strong demand for the latest model.
- Depreciation Trends: Older models, particularly the 2015 GMC Sierra 1500, show a steep decline in value, priced at $19,127, which is 28.2% below its original MSRP.
- Best Value Years: The 2022 model offers a balance with a current average price of $43,081, reflecting a modest depreciation of ~21.5% from its MSRP.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 GMC Sierra 1500 | $38,300 | $60,511 | +58.5% |
| 2025 GMC Sierra 1500 | $38,300 | $52,875 | +38.0% |
| 2024 GMC Sierra 1500 | $37,700 | $50,105 | +33.0% |
| 2023 GMC Sierra 1500 | $37,100 | $46,354 | +25.0% |
| 2022 GMC Sierra 1500 | $35,400 | $43,081 | +21.5% |
| 2021 GMC Sierra 1500 | $30,100 | $35,920 | +19.5% |
| 2019 GMC Sierra 1500 | $29,600 | $31,825 | +7.5% |
| 2018 GMC Sierra 1500 | $29,000 | $26,131 | -9.7% |
| 2017 GMC Sierra 1500 | $28,405 | $23,530 | -17.3% |
| 2016 GMC Sierra 1500 | $27,815 | $20,747 | -25.4% |
| 2015 GMC Sierra 1500 | $26,670 | $19,127 | -28.2% |
These recommendations are based on CarGurus' proprietary market data from July 23, 2026, CarGurus experts' opinions, and generative AI.
FAQs
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