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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

    $26,999

    98,860 mi.
    Est. $507/mo

    Ace Motors LLC

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    Norfolk, VA (700 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

    $27,788

    $100
    67,012 mi.
    Est. $522/mo

    LaFontaine Chrysler Jeep Dodge RAM Fenton

    4.4
    Check Availability
    Fenton, MI (210 mi)

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  • Pacific Blue Metallic 2020 GMC Sierra 1500 SLEPacific Blue Metallic 2020 GMC Sierra 1500 SLEPacific Blue Metallic 2020 GMC Sierra 1500 SLEPacific Blue Metallic 2020 GMC Sierra 1500 SLEPacific Blue Metallic 2020 GMC Sierra 1500 SLEPacific Blue Metallic 2020 GMC Sierra 1500 SLE

    $23,220

    127,155 mi.
    Est. $436/mo

    AutoNation Toyota Corpus Christi

    4.9
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    Corpus Christi, TX (1,123 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

    $29,371

    60,908 mi.
    Est. $552/mo

    Muller Honda

    4.9
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    Highland Park, IL (22 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

    $24,786

    119,761 mi.
    Est. $466/mo

    Ira Toyota of Manchester

    4.5
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    Manchester, NH (829 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

    $20,349

    179,346 mi.
    Est. $382/mo

    Buerkle Hyundai

    4.2
    Check Availability
    Saint Paul, MN (348 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

    $30,649

    97,523 mi.
    Est. $576/mo

    AutoNation Nissan Chandler

    4.5
    Check Availability
    Chandler, AZ (1,444 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

    $28,977

    $200
    40,359 mi.
    Est. $545/mo

    Jimmy Britt Chevrolet

    4.3
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    Greensboro, GA (625 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

    $23,994

    109,651 mi.
    Est. $451/mo

    Grace Auto Group

    4.7
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    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

    $26,494

    131,002 mi.
    Est. $498/mo

    Robert Brogden's Garden City GMC

    4.7
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    Garden City, KS (751 mi)
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  • Quartz 2020 GMC Sierra 1500 SLEQuartz 2020 GMC Sierra 1500 SLEQuartz 2020 GMC Sierra 1500 SLEQuartz 2020 GMC Sierra 1500 SLEQuartz 2020 GMC Sierra 1500 SLEQuartz 2020 GMC Sierra 1500 SLE

    $25,800

    $195
    84,348 mi.
    Est. $485/mo

    Lithia Springs Ford

    4.8
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    Lithia Springs, GA (584 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

    $21,888

    $312
    110,901 mi.
    Est. $411/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (264 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

    $22,995

    $904
    100,374 mi.
    Est. $432/mo

    Car Buy

    4.1
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    Pompano Beach, FL (1,164 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

    $37,404

    $100
    44,825 mi.
    Est. $703/mo

    Sapaugh GM Country

    4.8
    Check Availability
    Herculaneum, MO (291 mi)

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  • White 2020 GMC Sierra 1500 SLEWhite 2020 GMC Sierra 1500 SLEWhite 2020 GMC Sierra 1500 SLEWhite 2020 GMC Sierra 1500 SLEWhite 2020 GMC Sierra 1500 SLEWhite 2020 GMC Sierra 1500 SLE

    $33,998

    48,459 mi.
    Est. $639/mo

    CarMax Jacksonville NC

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    Jacksonville, NC (741 mi)
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  • Silver 2020 GMC Sierra 1500 SLESilver 2020 GMC Sierra 1500 SLESilver 2020 GMC Sierra 1500 SLESilver 2020 GMC Sierra 1500 SLESilver 2020 GMC Sierra 1500 SLESilver 2020 GMC Sierra 1500 SLE

    $36,998

    34,204 mi.
    Est. $695/mo

    CarMax South Portland

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    South Portland, ME (885 mi)
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  • Smokey Quartz Metallic 2020 GMC Sierra 1500 SLESmokey Quartz Metallic 2020 GMC Sierra 1500 SLESmokey Quartz Metallic 2020 GMC Sierra 1500 SLESmokey Quartz Metallic 2020 GMC Sierra 1500 SLESmokey Quartz Metallic 2020 GMC Sierra 1500 SLESmokey Quartz Metallic 2020 GMC Sierra 1500 SLE

    $28,597

    71,849 mi.
    Est. $538/mo

    John Howerton Honda

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    Beckley, WV (443 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

    $33,471

    36,625 mi.
    Est. $629/mo

    Weathers Motors

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    Media, PA (651 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

    $28,977

    48,258 mi.
    Est. $545/mo

    Your Kar Company

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    Norfolk, VA (698 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
    Check Availability
    Alton, IL (245 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

    $29,000

    89,514 mi.
    Est. $545/mo

    Alexander Family GMC of Bloomsburg

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    Bloomsburg, PA (585 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

    $29,000

    $500
    73,158 mi.
    Est. $545/mo

    Stewart Chrysler Dodge Jeep Ram

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    Colma, CA (1,859 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

    $30,990

    $1K
    82,643 mi.
    Est. $582/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
    Check Availability
    Novi, MI (218 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLE 8 Good deals
2025 GMC Sierra 1500 SLE $45,152 8 Great deals
2024 GMC Sierra 1500 SLE $39,108 31 Great deals
2023 GMC Sierra 1500 SLE $36,145 40 Great deals
2022 GMC Sierra 1500 SLE $33,914 17 Great deals
2021 GMC Sierra 1500 SLE $30,522 42 Great deals
2019 GMC Sierra 1500 SLE $26,210 27 Great deals
2018 GMC Sierra 1500 SLE $23,495 31 Great deals
2017 GMC Sierra 1500 SLE $20,851 38 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 $28,009, 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