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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $43,918

    48,293 mi.
    Est. $826/mo

    All American Chrysler Jeep Dodge Fiat of San Angelo

    4.4
    Check Availability
    San Angelo, TX (1,012 mi)

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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $42,316

    $494
    46,140 mi.
    Est. $795/mo

    Southern Chevrolet

    4.4
    Check Availability
    Chesapeake, VA (692 mi)

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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $47,793

    $607
    23,281 mi.
    Est. $898/mo

    Group 1 GMC Rivertown

    4.6
    Check Availability
    Columbus, GA (662 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $47,499

    $500
    22,393 mi.
    Est. $893/mo

    i.g. Burton Lewes Automall Chevrolet Buick GMC

    4.6
    Check Availability
    Lewes, DE (692 mi)
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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $46,489

    $349
    38,529 mi.
    Est. $874/mo

    Sapaugh GM Country

    4.8
    Check Availability
    Herculaneum, MO (291 mi)
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  • Titanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLT

    $53,387

    62,449 mi.
    Est. $1,003/mo

    McCluskey Chevrolet

    4.1
    Check Availability
    Cincinnati, OH (250 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $39,858

    37,445 mi.
    Est. $749/mo

    Rountree Moore Ford Lincoln

    4.2
    Check Availability
    Lake City, FL (855 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $40,035

    32,468 mi.
    Est. $753/mo

    Reynolds GMC

    4.6
    Check Availability
    West Covina, CA (1,724 mi)

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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $49,686

    $3.2K
    15,601 mi.
    Est. $934/mo

    Coulter Cadillac Buick GMC

    4.8
    Check Availability
    Phoenix, AZ (1,449 mi)
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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $42,400

    41,467 mi.
    Est. $797/mo

    Twin Pine Ford

    4.5
    Check Availability
    Ephrata, PA (609 mi)
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  • Titanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLTTitanium Rush Metallic 2025 GMC Sierra 1500 SLT

    $40,909

    $921
    32,534 mi.
    Est. $769/mo

    Lake City Chrysler Dodge Jeep Ram

    4.4
    Check Availability
    Lake City, FL (854 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $39,570

    $2.2K
    44,935 mi.
    Est. $744/mo

    Capitol Chevrolet

    4.7
    Check Availability
    Austin, TX (985 mi)
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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $50,500

    $1K
    17,960 mi.
    Est. $949/mo

    Kirksville Motor Company

    4.9
    Check Availability
    Kirksville, MO (282 mi)
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  • Volcanic Red Tintcoat 2025 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2025 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2025 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2025 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2025 GMC Sierra 1500 SLTVolcanic Red Tintcoat 2025 GMC Sierra 1500 SLT

    $49,999

    6,154 mi.
    Est. $940/mo

    Eric von Schledorn Chevrolet Cadillac

    3.9
    Check Availability
    Saukville, WI (105 mi)

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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $39,688

    $1.5K
    43,000 mi.
    Est. $746/mo

    Clay Cooley Ford

    4.4
    Check Availability
    Arlington, TX (816 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $47,891

    27,392 mi.
    Est. $900/mo

    John Holt Chevrolet

    4.7
    Check Availability
    Chickasha, OK (733 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $42,987

    38,806 mi.
    Est. $808/mo

    EchoPark Automotive Thornton

    4.8
    Check Availability
    Thornton, CO (915 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $42,036

    $1.8K
    43,123 mi.
    Est. $790/mo

    Price Leblanc Nissan

    4.8
    Check Availability
    Gonzales, LA (823 mi)
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  • Sterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLT

    $40,769

    $100
    44,704 mi.
    Est. $766/mo

    Rountree Moore Chevrolet

    4.6
    Check Availability
    Lake City, FL (854 mi)
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  • Sterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLT

    $40,487

    40,126 mi.
    Est. $761/mo

    AutoNation USA St. Louis

    4.6
    Check Availability
    St. Peters, MO (265 mi)

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  • Sterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLTSterling 2025 GMC Sierra 1500 SLT

    $41,672

    42,986 mi.
    Est. $783/mo

    Mark Christopher Chevrolet Buick GMC Cadillac

    4.6
    Check Availability
    Ontario, CA (1,709 mi)
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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $45,180

    $265
    40,201 mi.
    Est. $849/mo

    Audi Hilton Head

    4.6
    Check Availability
    Hardeeville, SC (756 mi)
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  • Summit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLTSummit White 2025 GMC Sierra 1500 SLT

    $39,954

    $263
    38,557 mi.
    Est. $751/mo

    Mazda of Gainesville

    4.3
    Check Availability
    Gainesville, FL (895 mi)
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  • Sterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLTSterling Metallic 2025 GMC Sierra 1500 SLT

    $41,220

    49,351 mi.
    Est. $775/mo

    AutoNation Chevrolet Gulf Freeway

    4.6
    Check Availability
    Houston, TX (948 mi)
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  • Onyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLTOnyx Black 2025 GMC Sierra 1500 SLT

    $44,800

    45,532 mi.
    Est. $842/mo

    Willis Automotive

    4.7
    Check Availability
    Des Moines, IA (316 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLT 51 Great deals
2024 GMC Sierra 1500 SLT $45,869 154 Great deals
2023 GMC Sierra 1500 SLT $44,339 68 Great deals
2022 GMC Sierra 1500 SLT $40,769 54 Great deals
2021 GMC Sierra 1500 SLT $35,730 100 Great deals
2020 GMC Sierra 1500 SLT $33,741 58 Great deals
2019 GMC Sierra 1500 SLT $32,617 19 Great deals
2018 GMC Sierra 1500 SLT $27,890 61 Great deals
2017 GMC Sierra 1500 SLT $25,077 43 Great deals

About the 2025 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 2025 GMC Sierra 1500 SLT
FAQs

How much does the 2025 GMC Sierra 1500 SLT cost?

The 2025 GMC Sierra 1500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2025 Sierra 1500 SLT is $45,201, with pricing starting at $16,980.

What is the MPG of the 2025 GMC Sierra 1500 SLT?

The 2025 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 2025 GMC Sierra 1500 SLT?

The 2025 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:


Is the 2025 GMC Sierra 1500 SLT reliable?

The 2025 GMC Sierra 1500 has an average reliability rating of 4.8 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2025 Sierra 1500 owners.

Ratings (4 reviews)

100% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
5.0
Interior
5.0
Performance
4.8
Value
4.5
Exterior
4.8
Reliability
4.8
Trims

SLT (3 styles)

Style
4WD Crew Cab 157" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 147" SLT
Inventory price
Starting at $58,700 Starting at $54,900 Starting at $58,000
Combined MPG
16 17 16
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
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2025 GMC Sierra 1500 SLT by popular city

GMC Sierra 1500 trims