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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $45,719

    87,643 mi.
    Est. $859/mo

    Ewing Buick GMC

    4.5
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    Plano, TX (790 mi)

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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $28,159

    214,298 mi.
    Est. $529/mo

    Mercedes-Benz of Fort Wayne

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    Fort Wayne, IN (138 mi)

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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $39,500

    152,990 mi.
    Est. $742/mo

    Anchorage Chrysler Dodge Jeep RAM Center

    4.8
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    Anchorage, AK (2,848 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $41,581

    $400
    69,348 mi.
    Est. $782/mo

    Port Orchard Ford

    4.7
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    Port Orchard, WA (1,747 mi)
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  • Bronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 Denali

    $49,888

    40,462 mi.
    Est. $938/mo

    Jake Sweeney Buick GMC

    4.7
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    Lebanon, OH (247 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $29,366

    184,651 mi.
    Est. $552/mo

    Hupp Auto Center

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    Tuppers Plains, OH (358 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $23,500

    284,633 mi.
    Est. $442/mo

    Lou Dominion's Deals on Wheels-Benton Harbor

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    Benton Harbor, MI (65 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $39,129

    127,821 mi.
    Est. $735/mo

    Crain Hyundai of Fort Smith

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    Fort Smith, AR (578 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $25,555

    198,595 mi.
    Est. $480/mo

    Autohaven LLC

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    Shelby Township, MI (242 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $54,444

    65,630 mi.
    Est. $1,023/mo

    44 Auto Mart - Bardstown

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    Bardstown, KY (303 mi)
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  • Black 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 DenaliBlack 2015 GMC Sierra 3500 Denali

    $36,500

    87,711 mi.
    Est. $686/mo

    A Car 4 You LLC- Brick

    3.6
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    Brick Township, NJ (715 mi)
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  • Quicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 DenaliQuicksilver Metallic 2015 GMC Sierra 3500 Denali

    $39,995

    119,623 mi.
    Est. $752/mo

    Motor Cars Mitsubishi

    4.2
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    Aurora, IL (32 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $31,361

    $230
    170,760 mi.
    Est. $589/mo

    Mercedes-Benz of Beaumont

    4.5
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    Beaumont, TX (894 mi)
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  • Stone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 DenaliStone Blue Metallic 2015 GMC Sierra 3500 Denali

    $62,594

    68,402 mi.
    Est. $1,177/mo

    Lifted Trucks - McKinney

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    McKinney, TX (776 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $41,390

    82,955 mi.
    Est. $778/mo

    Ressler Chevrolet

    4.6
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    Bozeman, MT (1,197 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $44,225

    111,349 mi.
    Est. $831/mo

    Carhub

    2.6
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    Stafford, VA (587 mi)
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  • Bronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 DenaliBronze Alloy Metallic 2015 GMC Sierra 3500 Denali

    $44,721

    $1K
    66,930 mi.
    Est. $841/mo

    Vandergriff Acura

    3.3
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    Arlington, TX (822 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $24,985

    265,721 mi.
    Est. $470/mo

    Paradise Automotive Group

    3.4
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    San Juan Capistrano, CA (1,731 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $28,697

    174,715 mi.
    Est. $539/mo

    Northwest Chevrolet of Bellingham

    4.6
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    Bellingham, WA (1,743 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $41,990

    100,673 mi.
    Est. $789/mo

    West Metro Buick GMC

    5.0
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    Monticello, MN (389 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $37,995

    122,403 mi.
    Est. $714/mo

    Lot 99

    1.1
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    Milwaukie, OR (1,752 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $33,995

    124,491 mi.
    Est. $639/mo

    Carz R Us LLC

    2.9
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    Mesa, AZ (1,431 mi)
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  • Summit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 DenaliSummit White 2015 GMC Sierra 3500 Denali

    $39,999

    227,887 mi.
    Est. $752/mo

    Tampa Bay Truck Factory LLC

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    Tampa, FL (1,001 mi)
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  • Onyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 DenaliOnyx Black 2015 GMC Sierra 3500 Denali

    $23,500

    $1.4K
    159,000 mi.
    Est. $442/mo

    Northside Auto Imports LLC

    Check Availability
    Birmingham, AL (581 mi)
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GMC Sierra 3500 prices by year

Model year Average price Deals
2026 GMC Sierra 3500 Denali 10 Great deals
2025 GMC Sierra 3500 Denali $81,554 41 Great deals
2024 GMC Sierra 3500 Denali $75,734 57 Great deals
2023 GMC Sierra 3500 Denali $63,231 10 Great deals
2022 GMC Sierra 3500 Denali $59,861 30 Great deals
2021 GMC Sierra 3500 Denali $55,882 10 Great deals
2020 GMC Sierra 3500 Denali $53,244 14 Great deals
2019 GMC Sierra 3500 Denali $47,118 16 Great deals
2018 GMC Sierra 3500 Denali $45,510 16 Great deals
2017 GMC Sierra 3500 Denali $44,888 9 Great deals

About the 2015 GMC Sierra 3500 Denali

Basics

Denali shown.

Seating
5
Door count
4
Drivetrain
Rear Wheel Drive
Combined MPG
0
Transmission
6-Speed A/T
Engine
360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability)
Side view of the 2015 GMC Sierra 3500 Denali
FAQs

How much does the 2015 GMC Sierra 3500 Denali cost?

The 2015 GMC Sierra 3500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2015 Sierra 3500 Denali is $38,807, with pricing starting at $23,500.

What are some similar vehicles and competitors of the 2015 GMC Sierra 3500 Denali?

The 2015 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2015 GMC Sierra 3500 Denali reliable?

The 2015 GMC Sierra 3500 has an average reliability rating of 4.6 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2015 Sierra 3500 owners.

Ratings (13 reviews)

92% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.6
Interior
4.8
Performance
4.7
Value
4.5
Exterior
4.7
Reliability
4.6
Trims

Denali (8 styles)

Style
4WD Crew Cab 167.7" Denali 2WD Crew Cab 167.7" Denali 2WD Crew Cab 167.7" Denali 4WD Crew Cab 167.7" Denali 2WD Crew Cab 153.7" Denali 4WD Crew Cab 153.7" Denali 2WD Crew Cab 153.7" Denali 4WD Crew Cab 153.7" Denali
Inventory price
Starting at $56,885 Starting at $50,835 Starting at $53,530 Starting at $54,190 Starting at $50,640 Starting at $56,690 Starting at $53,335 Starting at $53,995
Combined MPG
0 0 0 0 0 0 0 0
Engine
360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability)
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