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  • Summit White 2026 GMC Sierra 1500 SLT

    $60,387

    26,285 mi.
    Est. $1,110/mo

    McCluskey Chevrolet

    4.1
    Check Availability
    Cincinnati, OH (17 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

    $56,989

    $7.2K

    MSRP $68,239

    Est. $1,047/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 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

    $60,164

    MSRP $71,475

    Est. $1,106/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $65,576

    $1.2K

    MSRP $75,675

    Est. $1,205/mo

    Joseph Buick GMC Trucks

    4.5
    Check Availability
    Cincinnati, OH (19 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

    $57,399

    $5.3K

    MSRP $68,985

    Est. $1,055/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $57,945

    $5.3K

    MSRP $69,585

    Est. $1,065/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $60,710

    $6.7K

    MSRP $72,075

    Est. $1,116/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $59,634

    $7.2K

    MSRP $70,884

    Est. $1,096/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 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

    $66,970

    $1.1K

    MSRP $77,170

    Est. $1,231/mo

    Joseph Buick GMC Trucks

    4.5
    Check Availability
    Cincinnati, OH (19 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

    $59,034

    $7.2K

    MSRP $70,284

    Est. $1,085/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 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

    $60,164

    MSRP $71,475

    Est. $1,106/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $62,851

    $1.2K

    MSRP $73,825

    Est. $1,155/mo

    Joseph Buick GMC Trucks

    4.5
    Check Availability
    Cincinnati, OH (19 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

    $63,387

    $1.2K

    MSRP $75,700

    Est. $1,165/mo

    Joseph Buick GMC Trucks

    4.5
    Check Availability
    Cincinnati, OH (19 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

    $59,886

    $6.7K

    MSRP $73,570

    Est. $1,101/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $62,004

    $1.7K

    MSRP $70,375

    Est. $1,140/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $59,191

    $4.7K

    MSRP $70,375

    Est. $1,088/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 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

    $59,522

    $4.7K

    MSRP $70,975

    Est. $1,094/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (28 mi)
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  • Summit White 2026 GMC Sierra 1500 SLT

    $63,544

    MSRP $68,794

    Est. $1,168/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 mi)
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  • Onyx Black 2026 GMC Sierra 1500 SLT

    $65,034

    MSRP $70,284

    Est. $1,195/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 SLT

    $59,034

    $7.2K

    MSRP $70,284

    Est. $1,085/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 mi)
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  • $62,490

    MSRP $67,740

    Est. $1,148/mo

    Mark Sweeney Buick GMC

    4.2
    Check Availability
    Cincinnati, OH (10 mi)
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  • Sterling Metallic 2026 GMC Sierra 1500 SLT

    $61,387

    48,799 mi.
    Est. $1,128/mo

    McCluskey Chevrolet

    4.1
    Check Availability
    Cincinnati, OH (17 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

    $55,939

    $1K
    Est. $1,028/mo

    Laura Buick GMC

    4.6
    Check Availability
    $613 delivery from Collinsville, IL (307 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

    $55,298

    $1K
    Est. $1,016/mo

    Laura Buick GMC

    4.6
    Check Availability
    $613 delivery from Collinsville, IL (307 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

    $58,554

    Est. $1,076/mo

    Reichard Buick Inc

    3.6
    Check Availability
    Dayton, OH (50 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

    $59,067

    $6.4K
    Est. $1,086/mo

    Reichard Buick Inc

    3.6
    Check Availability
    Dayton, OH (50 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

    $59,844

    Est. $1,100/mo

    Reichard Buick Inc

    3.6
    Check Availability
    Dayton, OH (50 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

    $58,444

    Est. $1,074/mo

    Reichard Buick Inc

    3.6
    Check Availability
    Dayton, OH (50 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

    $63,512

    Est. $1,167/mo

    Bush Auto Place

    4.6
    Check Availability
    Wilmington, OH (40 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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2026 GMC Sierra 1500 SLT by city

GMC Sierra 1500 trims