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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

    $65,679

    MSRP $68,929

    Est. $1,209/mo

    John Miles Chevrolet Buick GMC

    4.3
    Check Availability
    Conyers, GA (23 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

    $65,679

    MSRP $68,929

    Est. $1,209/mo

    John Miles Chevrolet Buick GMC

    4.3
    Check Availability
    Conyers, GA (23 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

    $64,065

    Est. $1,180/mo

    Rick Hendrick Buick GMC

    4.8
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    Duluth, GA (12 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

    $58,685

    Est. $1,081/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 mi)
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  • Summit White 2026 GMC Sierra 1500 SLT

    $64,990

    $3.2K
    Est. $1,197/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 mi)
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  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $62,910

    MSRP $70,660

    Est. $1,158/mo

    ALM GMC South

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    Morrow, GA (24 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

    $58,085

    Est. $1,070/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $56,090

    Est. $1,033/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $57,990

    Est. $1,068/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $60,670

    MSRP $69,095

    Est. $1,117/mo

    Jim Ellis Buick GMC

    4.5
    Check Availability
    Atlanta, GA (1 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

    $58,085

    Est. $1,070/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $60,961

    Est. $1,122/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
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  • Volcanic Red 2026 GMC Sierra 1500 SLTVolcanic Red 2026 GMC Sierra 1500 SLTVolcanic Red 2026 GMC Sierra 1500 SLTVolcanic Red 2026 GMC Sierra 1500 SLTVolcanic Red 2026 GMC Sierra 1500 SLTVolcanic Red 2026 GMC Sierra 1500 SLT

    $60,419

    MSRP $68,844

    Est. $1,112/mo

    Jim Ellis Buick GMC

    4.5
    Check Availability
    Atlanta, GA (1 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

    $58,485

    Est. $1,077/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 mi)

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  • Onyx Black 2026 GMC Sierra 1500 SLT

    $68,570

    Est. $1,263/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 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

    $58,085

    Est. $1,070/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 mi)
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  • Summit White 2026 GMC Sierra 1500 SLT

    $61,261

    Est. $1,128/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
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  • Summit White 2026 GMC Sierra 1500 SLT

    $58,121

    Est. $1,070/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 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

    $56,585

    Est. $1,042/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $65,635

    Est. $1,209/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $59,064

    MSRP $67,489

    Est. $1,088/mo

    Jim Ellis Buick GMC

    4.5
    Check Availability
    Atlanta, GA (1 mi)
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  • Sterling Metallic 2026 GMC Sierra 1500 SLT

    $68,570

    Est. $1,263/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
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  • Sterling Metallic 2026 GMC Sierra 1500 SLT

    $60,411

    $7.2K
    Est. $1,112/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
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  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $58,245

    MSRP $66,995

    Est. $1,072/mo

    ALM GMC South

    Check Availability
    Morrow, GA (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

    $54,995

    Est. $1,013/mo

    Laura Buick GMC

    4.6
    Check Availability
    $920 delivery from Collinsville, IL (460 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

    $57,995

    Est. $1,068/mo

    Laura Buick GMC

    4.6
    Check Availability
    $920 delivery from Collinsville, IL (460 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2025 GMC Sierra 1500 SLT $44,767 21 Great deals

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