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  • Iridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 Denali

    $36,887

    107,741 mi.
    Est. $693/mo

    John Miles Chevrolet Buick GMC

    4.2
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    Conyers, GA (602 mi)

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  • Sonoma Red Metallic 2015 GMC Sierra 2500 DenaliSonoma Red Metallic 2015 GMC Sierra 2500 DenaliSonoma Red Metallic 2015 GMC Sierra 2500 DenaliSonoma Red Metallic 2015 GMC Sierra 2500 DenaliSonoma Red Metallic 2015 GMC Sierra 2500 DenaliSonoma Red Metallic 2015 GMC Sierra 2500 Denali

    $38,982

    $642
    96,086 mi.
    Est. $733/mo

    AutoNation Chevrolet North Corpus Christi

    4.5
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    Corpus Christi, TX (1,123 mi)

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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $21,999

    219,269 mi.
    Est. $414/mo

    Concord Toyota

    4.8
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    Concord, CA (1,832 mi)
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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $27,225

    $500
    151,621 mi.
    Est. $512/mo

    Sam Pack's Five Star Ford Carrollton

    4.8
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    Carrollton, TX (799 mi)
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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $35,955

    $1.6K
    114,448 mi.
    Est. $676/mo

    Cox Chrysler Dodge Jeep Ram

    4.5
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    Burlington, NC (596 mi)
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  • Iridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 Denali

    $17,991

    417,181 mi.
    Est. $338/mo

    Olympic Chevrolet Buick GMC

    4.6
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    Huron, SD (560 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $37,990

    99,703 mi.
    Est. $714/mo

    Land Rover New Orleans

    4.8
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    Metairie, LA (833 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $32,407

    151,318 mi.
    Est. $609/mo

    Sam Leman Chevrolet Champaign

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    Champaign, IL (125 mi)

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  • Quicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 Denali

    $32,767

    135,934 mi.
    Est. $616/mo

    Best Deal Auto Sales - Angola

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    Angola, IN (137 mi)
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  • Black 2015 GMC Sierra 2500 DenaliBlack 2015 GMC Sierra 2500 DenaliBlack 2015 GMC Sierra 2500 DenaliBlack 2015 GMC Sierra 2500 DenaliBlack 2015 GMC Sierra 2500 DenaliBlack 2015 GMC Sierra 2500 Denali

    $25,275

    206,800 mi.
    Est. $475/mo

    Revvelation Motors

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    Lone Jack, MO (403 mi)
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  • Iridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 Denali

    $34,990

    139,640 mi.
    Est. $658/mo

    Auto Capital Investments

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    Denton, TX (794 mi)
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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $23,995

    290,694 mi.
    Est. $451/mo

    Truck Ranch American Fork

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    American Fork, UT (1,258 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $45,689

    70,821 mi.
    Est. $859/mo

    Lifted Trucks - Mesa

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    Mesa, AZ (1,442 mi)
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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $28,984

    184,962 mi.
    Est. $545/mo

    Lithia Hyundai of Fresno

    3.8
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    Fresno, CA (1,743 mi)

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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $33,396

    87,087 mi.
    Est. $628/mo

    A+ Autobrokers

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    Mt Vernon, OH (287 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $34,944

    98,040 mi.
    Est. $657/mo

    Billion Buick GMC Cadillac

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    Sioux City, IA (449 mi)
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  • White 2015 GMC Sierra 2500 DenaliWhite 2015 GMC Sierra 2500 DenaliWhite 2015 GMC Sierra 2500 DenaliWhite 2015 GMC Sierra 2500 DenaliWhite 2015 GMC Sierra 2500 DenaliWhite 2015 GMC Sierra 2500 Denali

    $28,750

    245,159 mi.
    Est. $540/mo

    Private seller: Jerry

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    Sedgwick, KS (588 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $33,995

    130,338 mi.
    Est. $639/mo

    Car Loft

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    Fredericksburg, VA (592 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $47,000

    74,000 mi.
    Est. $883/mo

    Terry Cullen Southlake Chevrolet

    3.7
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    Jonesboro, GA (603 mi)
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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $31,374

    97,988 mi.
    Est. $590/mo

    Hiller Ford

    4.4
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    Franklin, WI (76 mi)

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  • Quicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 DenaliQuicksilver Metallic 2015 GMC Sierra 2500 Denali

    $30,197

    104,474 mi.
    Est. $568/mo

    Northwest Chevrolet of Bellingham

    4.6
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    Bellingham, WA (1,743 mi)
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  • Iridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 DenaliIridium Metallic 2015 GMC Sierra 2500 Denali

    $37,948

    $350
    127,066 mi.
    Est. $713/mo

    Dave Smith Coeur d'Alene

    3.6
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    Coeur d'Alene, ID (1,475 mi)
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  • Summit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 DenaliSummit White 2015 GMC Sierra 2500 Denali

    $35,399

    160,004 mi.
    Est. $665/mo

    Mountain West Motor - Twin Falls

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    Twin Falls, ID (1,368 mi)
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  • Onyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 DenaliOnyx Black 2015 GMC Sierra 2500 Denali

    $35,975

    160,074 mi.
    Est. $676/mo

    Ray Skillman Buick GMC South

    4.6
    Check Availability
    Indianapolis, IN (174 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 19 Good deals
2025 GMC Sierra 2500 Denali $75,705 26 Great deals
2024 GMC Sierra 2500 Denali $70,359 55 Great deals
2023 GMC Sierra 2500 Denali $60,417 37 Great deals
2022 GMC Sierra 2500 Denali $58,059 54 Great deals
2021 GMC Sierra 2500 Denali $57,000 44 Great deals
2020 GMC Sierra 2500 Denali $53,838 46 Great deals
2019 GMC Sierra 2500 Denali $44,300 19 Great deals
2018 GMC Sierra 2500 Denali $44,102 14 Great deals
2017 GMC Sierra 2500 Denali $42,671 5 Great deals

About the 2015 GMC Sierra 2500 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 2500 Denali
FAQs

How much does the 2015 GMC Sierra 2500 Denali cost?

The 2015 GMC Sierra 2500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2015 Sierra 2500 Denali is $32,699, with pricing starting at $17,991.

What are some similar vehicles and competitors of the 2015 GMC Sierra 2500 Denali?

The 2015 GMC Sierra 2500 Denali compares to and/or competes against the following vehicles:


Is the 2015 GMC Sierra 2500 Denali reliable?

The 2015 GMC Sierra 2500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2015 Sierra 2500 owners.

Ratings (40 reviews)

92% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.8
Interior
4.8
Performance
4.8
Value
4.6
Exterior
4.9
Reliability
4.7
Trims

Denali (4 styles)

Style
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 $53,350 Starting at $53,740 Starting at $50,540 Starting at $56,550
Combined MPG
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)
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GMC Sierra 2500 trims