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  • Onyx Black 2020 GMC Sierra 1500 SLE

    Not Priced

    54,334 mi.
    Est. $0/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    Gurnee, IL (38 mi)

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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $24,985

    107,274 mi.
    Est. $470/mo

    Quality Buick GMC Cadillac

    4.1
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    Alton, IL (245 mi)

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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLE

    $25,500

    80,751 mi.
    Est. $479/mo

    Sarchione Chrysler Dodge Jeep Ram

    4.2
    Check Availability
    Dalton, OH (318 mi)
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  • Gray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLE

    $28,998

    71,779 mi.
    Est. $545/mo

    CarMax Schaumburg

    4.5
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    Schaumburg, IL (26 mi)
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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $27,988

    67,012 mi.
    Est. $526/mo

    LaFontaine Chrysler Jeep Dodge RAM Fenton

    4.4
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    Fenton, MI (210 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLE

    $30,998

    74,970 mi.
    Est. $583/mo

    Leskovar Mitsubishi

    4.0
    Check Availability
    Kennewick, WA (1,584 mi)
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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $27,395

    $505
    90,486 mi.
    Est. $515/mo

    Ford of Latham

    4.1
    Check Availability
    Latham, NY (710 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLE

    $32,394

    62,633 mi.
    Est. $609/mo

    AutoNation USA Albuquerque

    4.8
    Check Availability
    Albuquerque, NM (1,121 mi)

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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $24,999

    100,374 mi.
    Est. $470/mo

    Car Buy

    4.1
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    Pompano Beach, FL (1,164 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLE

    $25,310

    $385
    122,290 mi.
    Est. $476/mo

    AutoNation Acura Colorado Springs

    4.6
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    Colorado Springs, CO (929 mi)
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  • Onyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLE

    $27,775

    $220
    94,181 mi.
    Est. $522/mo

    Land Rover Tallahassee

    5.0
    Check Availability
    Tallahassee, FL (810 mi)
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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $26,550

    91,423 mi.
    Est. $499/mo

    Paugh's Auto Sales

    Check Availability
    Binghamton, NY (604 mi)
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  • Maroon 2020 GMC Sierra 1500 SLEMaroon 2020 GMC Sierra 1500 SLEMaroon 2020 GMC Sierra 1500 SLEMaroon 2020 GMC Sierra 1500 SLEMaroon 2020 GMC Sierra 1500 SLEMaroon 2020 GMC Sierra 1500 SLE

    $31,941

    45,913 mi.
    Est. $600/mo

    Tim Short Ford of Morehead

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    Morehead, KY (335 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLE

    $28,777

    40,359 mi.
    Est. $541/mo

    Jimmy Britt Chevrolet

    4.3
    Check Availability
    Greensboro, GA (625 mi)

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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $29,999

    119,950 mi.
    Est. $564/mo

    Macova Auto Group Inc

    Check Availability
    El Paso, TX (1,248 mi)
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  • 2020 GMC Sierra 1500 SLE2020 GMC Sierra 1500 SLE2020 GMC Sierra 1500 SLE2020 GMC Sierra 1500 SLE2020 GMC Sierra 1500 SLE2020 GMC Sierra 1500 SLE

    $17,490

    148,103 mi.
    Est. $329/mo

    Luxurious Auto Sales Inc

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    Plainfield, NJ (690 mi)
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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $32,403

    100,214 mi.
    Est. $609/mo

    Animas Hyundai

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    Farmington, NM (1,150 mi)
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  • Gray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLE

    $31,990

    82,643 mi.
    Est. $601/mo

    Sabeti Motors

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    Tacoma, WA (1,740 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLE

    $23,563

    104,339 mi.
    Est. $443/mo

    Feldman Chevrolet of Novi

    3.5
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    Novi, MI (218 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLE

    $37,515

    $361
    44,711 mi.
    Est. $705/mo

    Sapaugh GM Country

    4.8
    Check Availability
    Herculaneum, MO (291 mi)

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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLE

    $24,981

    119,761 mi.
    Est. $470/mo

    Ira Toyota of Manchester

    4.5
    Check Availability
    Manchester, NH (829 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLE

    $26,962

    104,198 mi.
    Est. $507/mo

    Shottenkirk Toyota of Weatherford

    4.8
    Check Availability
    Weatherford, TX (838 mi)
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  • Gray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLE

    $32,998

    $1K
    55,919 mi.
    Est. $620/mo

    CarMax Alliance

    4.4
    Check Availability
    Fort Worth, TX (816 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLE

    $24,494

    109,651 mi.
    Est. $460/mo

    Grace Auto Group

    4.7
    Check Availability
    Morrisville, PA (678 mi)
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  • Summit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLESummit White 2020 GMC Sierra 1500 SLE

    $25,995

    131,002 mi.
    Est. $489/mo

    Robert Brogden's Garden City GMC

    4.7
    Check Availability
    Garden City, KS (751 mi)
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  • Summit White 2020 GMC Sierra 1500 SLE

    $19,999

    179,345 mi.
    Est. $376/mo

    Buerkle Hyundai

    4.3
    Check Availability
    Saint Paul, MN (348 mi)

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  • Gray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLE

    $29,495

    79,953 mi.
    Est. $554/mo

    Miller Auto Sales

    Check Availability
    St Louis, MI (185 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLESatin Steel Metallic 2020 GMC Sierra 1500 SLE

    $28,995

    53,818 mi.
    Est. $545/mo

    Motor Cars Mitsubishi

    4.3
    Check Availability
    Aurora, IL (32 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLE 11 Good deals
2025 GMC Sierra 1500 SLE $43,709 9 Great deals
2024 GMC Sierra 1500 SLE $39,724 30 Great deals
2023 GMC Sierra 1500 SLE $36,122 39 Great deals
2022 GMC Sierra 1500 SLE $34,191 14 Great deals
2021 GMC Sierra 1500 SLE $30,285 28 Great deals
2019 GMC Sierra 1500 SLE $26,044 19 Great deals
2018 GMC Sierra 1500 SLE $23,777 26 Great deals
2017 GMC Sierra 1500 SLE $20,905 37 Great deals

About the 2020 GMC Sierra 1500 SLE

Basics

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)
Side view of the 2020 GMC Sierra 1500 SLE
FAQs

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 $27,569, with pricing starting at $17,490.

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.

Ratings (69 reviews)

91% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.8
Performance
4.8
Value
4.6
Exterior
4.9
Reliability
4.7
Trims

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)
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GMC Sierra 1500 trims