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  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $66,735

    MSRP $68,735

    Est. $1,209/mo

    Mastria GMC Cadillac

    4.5
    Check Availability
    Raynham, MA (14 mi)
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  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $66,085

    Est. $1,197/mo

    Battles Buick GMC

    4.9
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    Bourne, MA (28 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2026 GMC Sierra 1500 SLT

    $68,885

    MSRP $68,885

    Est. $1,248/mo

    Mastria GMC Cadillac

    4.5
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    Raynham, MA (14 mi)
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  • Black 2026 GMC Sierra 1500 SLTBlack 2026 GMC Sierra 1500 SLTBlack 2026 GMC Sierra 1500 SLTBlack 2026 GMC Sierra 1500 SLTBlack 2026 GMC Sierra 1500 SLTBlack 2026 GMC Sierra 1500 SLT

    $60,034

    MSRP $68,735

    Est. $1,087/mo

    Robertsons GMC

    4.8
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    Wareham, MA (22 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 1500 SLTTitanium Rush Metallic 2026 GMC Sierra 1500 SLTTitanium Rush Metallic 2026 GMC Sierra 1500 SLTTitanium Rush Metallic 2026 GMC Sierra 1500 SLTTitanium Rush Metallic 2026 GMC Sierra 1500 SLTTitanium Rush Metallic 2026 GMC Sierra 1500 SLT

    $63,605

    Est. $1,152/mo

    Tasca Buick GMC Woonsocket

    4.8
    Check Availability
    Woonsocket, RI (27 mi)
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  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $66,735

    $2K

    MSRP $68,735

    Est. $1,209/mo

    Mastria GMC Cadillac

    4.5
    Check Availability
    Raynham, MA (14 mi)
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  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $49,000

    $495
    15,714 mi.
    Est. $888/mo

    Mastria GMC Cadillac

    4.5
    Check Availability
    Raynham, MA (14 mi)
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  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $64,119

    MSRP $69,970

    Est. $1,161/mo

    Vendetti Buick GMC

    4.9
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    Franklin, MA (29 mi)
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  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $59,470

    Est. $1,077/mo

    Marty's GMC

    4.7
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    Kingston, MA (27 mi)
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  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $68,240

    MSRP $68,240

    Est. $1,236/mo

    Mastria GMC Cadillac

    4.5
    Check Availability
    Raynham, MA (14 mi)
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  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $62,076

    MSRP $70,975

    Est. $1,124/mo

    Vendetti Buick GMC

    4.9
    Check Availability
    Franklin, MA (29 mi)
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  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $61,655

    MSRP $69,480

    Est. $1,117/mo

    Vendetti Buick GMC

    4.9
    Check Availability
    Franklin, MA (29 mi)
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  • Sterling 2026 GMC Sierra 1500 SLTSterling 2026 GMC Sierra 1500 SLTSterling 2026 GMC Sierra 1500 SLTSterling 2026 GMC Sierra 1500 SLTSterling 2026 GMC Sierra 1500 SLTSterling 2026 GMC Sierra 1500 SLT

    $63,519

    MSRP $69,370

    Est. $1,151/mo

    Vendetti Buick GMC

    4.9
    Check Availability
    Franklin, MA (29 mi)
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  • White 2026 GMC Sierra 1500 SLTWhite 2026 GMC Sierra 1500 SLTWhite 2026 GMC Sierra 1500 SLTWhite 2026 GMC Sierra 1500 SLTWhite 2026 GMC Sierra 1500 SLTWhite 2026 GMC Sierra 1500 SLT

    $60,785

    $6.2K
    Est. $1,101/mo

    Marty's GMC

    4.7
    Check Availability
    Kingston, MA (27 mi)
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  • Gray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLT

    $63,909

    MSRP $68,610

    Est. $1,158/mo

    Robertsons GMC

    4.8
    Check Availability
    Wareham, MA (22 mi)
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  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $62,509

    $5.7K
    Est. $1,132/mo

    Marty's GMC

    4.7
    Check Availability
    Kingston, MA (27 mi)
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  • Glacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLT

    $67,335

    MSRP $69,335

    Est. $1,220/mo

    Mastria GMC Cadillac

    4.5
    Check Availability
    Raynham, MA (14 mi)
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  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $62,884

    MSRP $68,735

    Est. $1,139/mo

    Vendetti Buick GMC

    4.9
    Check Availability
    Franklin, MA (29 mi)
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  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $68,735

    MSRP $68,735

    Est. $1,245/mo

    Mastria GMC Cadillac

    4.5
    Check Availability
    Raynham, MA (14 mi)
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  • Glacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLT

    $65,079

    Est. $1,179/mo

    PAUL MASSE BUICK GMC SOUTH

    4.7
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    South Kingstown, RI (24 mi)
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  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $63,984

    Est. $1,159/mo

    PAUL MASSE BUICK GMC SOUTH

    4.7
    Check Availability
    South Kingstown, RI (24 mi)
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  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $65,779

    MSRP $70,130

    Est. $1,192/mo

    Vendetti Buick GMC

    4.9
    Check Availability
    Franklin, MA (29 mi)
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  • Gray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLTGray 2026 GMC Sierra 1500 SLT

    $54,300

    24 mi.
    Est. $984/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $673 delivery from Reidsville, NC (591 mi)
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  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $53,900

    24 mi.
    Est. $976/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $673 delivery from Reidsville, NC (591 mi)
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About the 2026 GMC Sierra 1500 SLT

Basics

SLT shown.

Seating
5
Door count
4
Drivetrain
Rear Wheel Drive
Combined MPG
17
Transmission
10-Speed A/T
Engine
305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
Side view of the 2026 GMC Sierra 1500 SLT
FAQs

How much does the 2026 GMC Sierra 1500 SLT cost?

The 2026 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $55,100.

What is the MPG of the 2026 GMC Sierra 1500 SLT?

The 2026 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 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 2026 GMC Sierra 1500 SLT?

The 2026 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:


Is the 2026 GMC Sierra 1500 SLT reliable?

The 2026 GMC Sierra 1500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.

Ratings (4 reviews)

75% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.0
Interior
4.0
Performance
4.2
Value
3.5
Exterior
4.2
Reliability
4.5
Trims

SLT (3 styles)

Style
2WD Crew Cab 147" SLT 4WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT
Inventory price
Starting at $55,100 Starting at $58,200 Starting at $58,900
Combined MPG
17 16 16
Engine
305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
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Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

2026 GMC Sierra 1500 SLT by city

GMC Sierra 1500 trims