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  • Black 2021 GMC Sierra 1500 SLEBlack 2021 GMC Sierra 1500 SLEBlack 2021 GMC Sierra 1500 SLEBlack 2021 GMC Sierra 1500 SLEBlack 2021 GMC Sierra 1500 SLEBlack 2021 GMC Sierra 1500 SLE

    $31,488

    87,657 mi.
    Est. $592/mo

    Ballou Chrysler Dodge Jeep Ram

    4.5
    Check Availability
    Brookville, PA (445 mi)

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  • Quicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLE

    $31,208

    91,737 mi.
    Est. $587/mo

    Crossroads Ford of Sumter

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    Sumter, SC (677 mi)

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  • Quicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLE

    $26,628

    $126
    95,605 mi.
    Est. $501/mo

    Golling Chrysler Dodge Jeep RAM

    4.8
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    Bloomfield Hills, MI (228 mi)
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  • Satin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLE

    $27,387

    $480
    93,251 mi.
    Est. $515/mo

    Bob Allen Motor Mall

    4.6
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    Danville, KY (329 mi)
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  • Brownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLE

    $25,591

    $3.3K
    134,333 mi.
    Est. $481/mo

    Bob Howard Buick GMC

    4.6
    Check Availability
    Oklahoma City, OK (686 mi)
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  • Summit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLE

    $33,435

    $259
    59,399 mi.
    Est. $628/mo

    McGee Toyota of Putnam

    4.9
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    Putnam, CT (810 mi)
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  • Onyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLE

    $29,055

    96,855 mi.
    Est. $546/mo

    Phillipsburg Easton Honda

    4.7
    Check Availability
    Phillipsburg, NJ (653 mi)
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  • Onyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLE

    $33,079

    60,477 mi.
    Est. $622/mo

    Lou Bachrodt Pompano Chevrolet

    4.5
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    Pompano Beach, FL (1,162 mi)

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  • Summit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLE

    $30,972

    71,467 mi.
    Est. $582/mo

    Starling Chevrolet Mount Pleasant

    4.7
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    Mount Pleasant, SC (758 mi)
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  • Onyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLE

    $32,435

    54,540 mi.
    Est. $610/mo

    Mastria Volkswagen of Raynham

    4.9
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    Raynham, MA (855 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $34,995

    63,653 mi.
    Est. $658/mo

    Mall of Georgia Ford

    4.3
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    Buford, GA (573 mi)
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  • Summit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLE

    $29,900

    105,710 mi.
    Est. $562/mo

    Lowery Brothers Motors

    4.7
    Check Availability
    Boaz, AL (538 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $30,994

    82,811 mi.
    Est. $583/mo

    Serra Buick GMC Rochester Hills

    4.7
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    Rochester Hills, MI (237 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $32,492

    84,148 mi.
    Est. $611/mo

    Volunteer Chevrolet

    4.6
    Check Availability
    Sevierville, TN (470 mi)

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  • Quicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLE

    $34,664

    40,752 mi.
    Est. $652/mo

    Sid Dillon Chevrolet Fremont

    4.8
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    Fremont, NE (457 mi)
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  • Brownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLEBrownstone Metallic 2021 GMC Sierra 1500 SLE

    $29,284

    71,473 mi.
    Est. $550/mo

    LaFontaine Ford Lansing

    4.4
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    Lansing, MI (168 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 1500 SLEPacific Blue Metallic 2021 GMC Sierra 1500 SLEPacific Blue Metallic 2021 GMC Sierra 1500 SLEPacific Blue Metallic 2021 GMC Sierra 1500 SLEPacific Blue Metallic 2021 GMC Sierra 1500 SLEPacific Blue Metallic 2021 GMC Sierra 1500 SLE

    $28,875

    67,654 mi.
    Est. $543/mo

    Music City Autoplex

    4.8
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    Madison, TN (389 mi)
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  • Summit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLE

    $36,499

    $400
    100,000 mi.
    Est. $686/mo

    Classic Chrysler Dodge Jeep RAM of Goldsboro

    4.2
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    Goldsboro, NC (690 mi)
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  • Summit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLE

    $30,617

    68,727 mi.
    Est. $575/mo

    Cavender Auto Country Chevrolet Buick GMC

    4.6
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    Weimar, TX (985 mi)
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  • Steel Metallic 2021 GMC Sierra 1500 SLE

    $31,381

    $376
    67,124 mi.
    Est. $590/mo

    Woody Folsom Chrysler Dodge Jeep RAM of Douglas

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    Douglas, GA (766 mi)

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  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 SLECayenne Red Tintcoat 2021 GMC Sierra 1500 SLECayenne Red Tintcoat 2021 GMC Sierra 1500 SLECayenne Red Tintcoat 2021 GMC Sierra 1500 SLECayenne Red Tintcoat 2021 GMC Sierra 1500 SLECayenne Red Tintcoat 2021 GMC Sierra 1500 SLE

    $34,000

    49,000 mi.
    Est. $639/mo

    Basil Ford of Niagara Falls

    4.4
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    Niagara Falls, NY (449 mi)
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  • Summit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLESummit White 2021 GMC Sierra 1500 SLE

    $31,224

    87,027 mi.
    Est. $587/mo

    Volvo Cars Hill Country

    4.9
    Check Availability
    Austin, TX (973 mi)
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  • Blue 2021 GMC Sierra 1500Blue 2021 GMC Sierra 1500Blue 2021 GMC Sierra 1500Blue 2021 GMC Sierra 1500Blue 2021 GMC Sierra 1500Blue 2021 GMC Sierra 1500

    $28,998

    51,442 mi.
    Est. $545/mo

    CarMax Buford

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    Buford, GA (575 mi)
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  • Cardinal Red 2021 GMC Sierra 1500 SLECardinal Red 2021 GMC Sierra 1500 SLECardinal Red 2021 GMC Sierra 1500 SLECardinal Red 2021 GMC Sierra 1500 SLECardinal Red 2021 GMC Sierra 1500 SLECardinal Red 2021 GMC Sierra 1500 SLE

    $34,547

    37,944 mi.
    Est. $649/mo

    Harold Chevrolet

    4.8
    Check Availability
    Angola, IN (137 mi)
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  • Onyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLE

    $30,320

    62,748 mi.
    Est. $570/mo

    Stafford Chrysler Dodge Jeep Ram

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    Stafford Springs, CT (786 mi)
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  • White 2021 GMC Sierra 1500 SLEWhite 2021 GMC Sierra 1500 SLEWhite 2021 GMC Sierra 1500 SLEWhite 2021 GMC Sierra 1500 SLEWhite 2021 GMC Sierra 1500 SLEWhite 2021 GMC Sierra 1500 SLE

    $28,999

    84,895 mi.
    Est. $545/mo

    Elite Motors Auto Sales

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    Fargo, ND (571 mi)
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  • Satin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLESatin Steel Metallic 2021 GMC Sierra 1500 SLE

    $26,422

    $896
    64,366 mi.
    Est. $497/mo

    Honda of Rutland

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    Rutland, VT (753 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLEQuicksilver Metallic 2021 GMC Sierra 1500 SLE

    $38,977

    29,902 mi.
    Est. $733/mo

    Unique Ford

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    Goffstown, NH (824 mi)
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  • Onyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLEOnyx Black 2021 GMC Sierra 1500 SLE

    $33,997

    93,273 mi.
    Est. $639/mo

    Michael's Auto Plaza

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    East Greenbush, NY (714 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLE 7 Great deals
2025 GMC Sierra 1500 SLE $44,758 9 Great deals
2024 GMC Sierra 1500 SLE $39,461 21 Great deals
2023 GMC Sierra 1500 SLE $36,236 50 Great deals
2022 GMC Sierra 1500 SLE $33,950 16 Great deals
2020 GMC Sierra 1500 SLE $28,089 36 Great deals
2019 GMC Sierra 1500 SLE $26,191 30 Great deals
2018 GMC Sierra 1500 SLE $23,975 35 Great deals
2017 GMC Sierra 1500 SLE $20,523 32 Great deals

About the 2021 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 2021 GMC Sierra 1500 SLE
FAQs

How much does the 2021 GMC Sierra 1500 SLE cost?

The 2021 GMC Sierra 1500 SLE price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 SLE is $31,213, with pricing starting at $22,244.

What is the MPG of the 2021 GMC Sierra 1500 SLE?

The 2021 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 2021 GMC Sierra 1500 SLE?

The 2021 GMC Sierra 1500 SLE compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 1500 SLE reliable?

The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.

Ratings (56 reviews)

60% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Trims

SLE (5 styles)

Style
4WD Crew Cab 147" SLE 4WD Crew Cab 157" SLE 2WD Double Cab 147" SLE 2WD Crew Cab 147" SLE 4WD Double Cab 147" SLE
Inventory price
Starting at $47,100 Starting at $47,400 Starting at $41,400 Starting at $43,800 Starting at $44,700
Combined MPG
19 19 21 21 19
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)
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GMC Sierra 1500 trims