Used 2020 GMC Sierra 1500 for SaleNationwide
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- White Frost Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 33,395
- Stock #:
- 344139
- VIN:
- 1GTU9FEL1KZ344139
2019 GMC Sierra 1500
Denali Crew Cab 4WD
33,395 mi
$38,396
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quartz
- Combined gas mileage:
- 20 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 97,680
- Stock #:
- GC350NT
- VIN:
- 3GTP8DED8KG113350
2019 GMC Sierra 1500
SLT Crew Cab RWD
97,680 mi
$30,447
- 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
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 68,178
- Stock #:
- 4X2168A
- VIN:
- 1GTR9CED7MZ380398
2021 GMC Sierra 1500
Elevation Double Cab 4WD
68,178 mi
$34,089
- 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:
- Onyx Black (gba)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black (h0u)
- Transmission:
- 8-Speed Automatic
- Mileage:
- 68,359
- Stock #:
- RG3058A
- VIN:
- 3GTU9BED0KG183879
2019 GMC Sierra 1500
SLE Crew Cab 4WD
68,359 mi
$29,898
- 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:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 80,762
- Stock #:
- J156
- VIN:
- 3GTP9EEL6LG452779
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
80,762 mi
$38,995
- 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:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 42,182
- Stock #:
- CU522A
- VIN:
- 3GTU9BET9MG130091
-$1,725
2021 GMC Sierra 1500
SLE Crew Cab 4WD
42,182 mi
$35,841
$34,116
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 310 hp 2.7L I4
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 78,474
- Stock #:
- M3035A
- VIN:
- 1GTR8CEK3MZ138399
-$3,000
2021 GMC Sierra 1500
Elevation Double Cab RWD
78,474 mi
$30,474
$27,474
- 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:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 79,828
- Stock #:
- B1049
- VIN:
- 3GTU9FED4LG105713
-$1,300
2020 GMC Sierra 1500
Denali Crew Cab 4WD
79,828 mi
$36,994
$35,694
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Combined gas mileage:
- 20 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 101,522
- Stock #:
- C263456A
- VIN:
- 1GTR8CED2LZ214369
2020 GMC Sierra 1500
Elevation Double Cab RWD
101,522 mi
$23,288
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 124,396
- Stock #:
- W260528A
- VIN:
- 3GTP8DED7MG219002
2021 GMC Sierra 1500
SLT Crew Cab RWD
124,396 mi
$28,301
- 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:
- Gray (Dark Sky Metallic)
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 92,655
- Stock #:
- P261123
- VIN:
- 3GTP9EELXKG261123
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
92,655 mi
$36,082
- 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:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 137,508
- Stock #:
- LG120634
- VIN:
- 3GTU9CED8LG120634
-$2,937
2020 GMC Sierra 1500
Elevation Crew Cab 4WD
137,508 mi
$24,626
$24,026
- 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:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 57,520
- Stock #:
- RTC1443A
- VIN:
- 1GTR9CEK7MZ314402
2021 GMC Sierra 1500
Elevation Double Cab 4WD
57,520 mi
$30,855
CarGurus Analysis:
2020 GMC Sierra 1500
With 6,351 currently listed for sale and an average price of $33,918.00, 31.9% 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 and CarGurus experts gave it an 8.33 / 10.
78.0% of 2020 Sierra 1500 models on CarGurus are accident free.
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 60,704
- Stock #:
- QBP6531
- VIN:
- 3GTP8CED4MG269785
2021 GMC Sierra 1500
Elevation Crew Cab RWD
60,704 mi
$29,819
- 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:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 108,638
- Stock #:
- A162872A
- VIN:
- 1GTU9FELXKZ102854
-$1,258
2019 GMC Sierra 1500
Denali Crew Cab 4WD
108,638 mi
$33,332
$32,074
- 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:
- White Frost
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 100,442
- Stock #:
- TT129A
- VIN:
- 3GTU9DET6MG126463
-$1,000
2021 GMC Sierra 1500
SLT Crew Cab 4WD
100,442 mi
$28,814
$27,814
- 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:
- Quartz
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- 8-Speed Automatic
- Mileage:
- 94,776
- Stock #:
- 352809A
- VIN:
- 3GTU9DED4KG234151
2019 GMC Sierra 1500
SLT Crew Cab 4WD
94,776 mi
$28,720
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 20 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Transmission:
- 8-Speed Automatic
- Mileage:
- 197,928
- Stock #:
- 11020
- VIN:
- 3GTP8DED2LG117380
2020 GMC Sierra 1500
SLT Crew Cab RWD
197,928 mi
$17,900
- 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:
- 100,463
- Stock #:
- 5931
- VIN:
- 3GTU9FET3LG438735
-$1,000
2020 GMC Sierra 1500
Denali Crew Cab 4WD
100,463 mi
$29,575
$28,575
- 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:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 43,633
- Stock #:
- MG475853
- VIN:
- 3GTP8DED9MG475853
2021 GMC Sierra 1500
SLT Crew Cab RWD
43,633 mi
$37,675
- 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:
- Silver
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 56,460
- Stock #:
- R0649
- VIN:
- 1GTR9CED0KZ239220
-$1,000
2019 GMC Sierra 1500
Elevation Double Cab 4WD
56,460 mi
$28,799
$27,799
- 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:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 67,913
- Stock #:
- FU395691
- VIN:
- 3GTU9FELXMG395691
2021 GMC Sierra 1500
Denali Crew Cab 4WD
67,913 mi
$38,425
CarGurus Analysis: 2020 GMC Sierra 1500
Summary
With 6,351 currently listed for sale and an average price of $33,918.00, 31.9% 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 and CarGurus experts gave it an 8.33 / 10.
78.0% of 2020 Sierra 1500 models on CarGurus are accident free.
Why it stands out
The 2020 GMC Sierra 1500 stands out because it reflects how far pickup trucks have come. Rather than feeling like a bare-bones work vehicle, it offers many of the creature comforts buyers now expect from SUVs and crossovers, while still keeping the utility-minded features that make modern trucks more useful. The AT4 trim in particular is described as comfortable and capable, which gives it a broader appeal than a truck focused only on job-site duty.
It also has practical strengths that matter to shoppers comparing full-size pickups. The available powertrain choices are a plus, and the truck’s technology is noted for being easy to use. At the same time, it is not presented as perfect: advanced safety features are not standard, so buyers who want the most comprehensive driver-assistance equipment may need to look carefully at how it is equipped. Overall, the 2020 Sierra 1500 is distinctive for blending everyday comfort, capability, and modern truck convenience in a way that suits both commuting and work.
Other model years to consider
- Average price: $42,914.00
- Good/great deal percentage: 34.2%
- User rating: 5 / 5
- Total listings: 9,540
- Average price: $51,600.00
- Good/great deal percentage: 34.5%
- User rating: 5 / 5
- Total listings: 9,660
- Average price: $49,345.00
- Good/great deal percentage: 34.8%
- User rating: 4.64 / 5
- Total listings: 9,708
This analysis is based on CarGurus' proprietary market data from August 10, 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 Crew Cab RWD | $42,900 |
| Elevation Double Cab 4WD | $43,800 |
| SLE Crew Cab 4WD | $43,700 |
| SLT Crew Cab RWD | $46,900 |
| 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 Boston: The average price in Boston, MA ($38,580) is the highest among the listed cities, indicating strong demand or limited supply in that market.
- Lowest Prices in 2015 Sierra: The average price in Chicago, IL ($30,241) is the lowest, suggesting a more competitive market or higher inventory levels.
- Inventory Variation: Cities like Atlanta (651 listings) and Houston (641 listings) have substantial inventory, which may contribute to more stable pricing around the national average.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| Boston, MA | 465 | $38,580 |
| Philadelphia, PA | 488 | $38,004 |
| New York, NY | 466 | $34,509 |
| Washington, DC | 485 | $33,474 |
| Houston, TX | 641 | $33,176 |
| Los Angeles, CA | 351 | $32,776 |
| Dallas, TX | 210 | $31,744 |
| Atlanta, GA | 651 | $31,498 |
| Miami, FL | 385 | $30,605 |
| Chicago, IL | 616 | $30,241 |
Pricing Analysis by Model Year
Key Insights
- Significant Premium for New Models: The 2026 GMC Sierra 1500 is priced at $59,764, which is 56.7% above its MSRP, indicating strong demand for the latest model.
- Depreciation Trends: Older models show a consistent decline in value, with the 2015 model down 28.4% from its original MSRP, reflecting typical depreciation patterns.
- Best Value in Recent Models: The 2022 model is priced at $42,998, only 21.1% below MSRP, suggesting it offers a good balance of price and features for buyers.
Model Year Pricing
| Model Year | Original MSRP | Avg Price | Price vs MSRP |
|---|---|---|---|
| 2026 | $38,300 | $59,764 | +56.7% |
| 2025 | $38,300 | $52,445 | +37.0% |
| 2024 | $37,700 | $49,828 | +32.2% |
| 2023 | $37,100 | $46,143 | +24.4% |
| 2022 | $35,400 | $42,998 | +21.1% |
| 2021 | $30,100 | $35,508 | +17.8% |
| 2019 | $29,600 | $31,805 | +7.4% |
| 2018 | $29,000 | $26,368 | -9.0% |
| 2017 | $28,405 | $23,483 | -17.4% |
| 2016 | $27,815 | $20,743 | -25.4% |
| 2015 | $26,670 | $19,092 | -28.4% |
These recommendations are based on CarGurus' proprietary market data from August 6, 2026, CarGurus experts' opinions, and generative AI.
