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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

    $39,695

    $300
    89,551 mi.
    Est. $746/mo

    Starling Buick GMC Stuart

    4.9
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    Stuart, FL (1,095 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

    $40,224

    96,086 mi.
    Est. $756/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

    $37,581

    114,448 mi.
    Est. $706/mo

    Cox Chrysler Dodge Jeep Ram

    4.5
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    Burlington, NC (596 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

    $41,799

    58,950 mi.
    Est. $786/mo

    Suburban Honda

    4.6
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    Farmington Hills, MI (220 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

    $45,000

    75,790 mi.
    Est. $846/mo

    Shaheen Chevrolet

    4.5
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    Lansing, MI (167 mi)
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  • Bronze Alloy Metallic 2015 GMC Sierra 2500 DenaliBronze Alloy Metallic 2015 GMC Sierra 2500 DenaliBronze Alloy Metallic 2015 GMC Sierra 2500 DenaliBronze Alloy Metallic 2015 GMC Sierra 2500 DenaliBronze Alloy Metallic 2015 GMC Sierra 2500 DenaliBronze Alloy Metallic 2015 GMC Sierra 2500 Denali

    $41,103

    $2.2K
    78,755 mi.
    Est. $773/mo

    Heritage Buick GMC

    4.6
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    Rockwall, TX (786 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

    $31,283

    $565
    161,509 mi.
    Est. $588/mo

    Performance Chrysler Jeep Dodge RAM

    4.6
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    Columbus, OH (272 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

    $38,621

    107,741 mi.
    Est. $726/mo

    John Miles Chevrolet Buick GMC

    4.3
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    Conyers, GA (602 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

    $47,450

    $150
    68,150 mi.
    Est. $892/mo

    Tonkin Chevrolet GMC

    5.0
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    The Dalles, OR (1,683 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

    $21,780

    178,120 mi.
    Est. $409/mo

    Transportation Center Of Western New York

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    Niagara Falls, NY (452 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

    $30,995

    181,007 mi.
    Est. $583/mo

    Parker's Used Cars

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    Blenheim, SC (673 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

    $37,998

    100,069 mi.
    Est. $714/mo

    Real Steal Auto Sales Inc.

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    Gastonia, NC (575 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

    $30,950

    165,807 mi.
    Est. $582/mo

    Leshen Auto Sales

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    Des Moines, IA (309 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

    $31,995

    151,318 mi.
    Est. $601/mo

    Sam Leman Chevrolet Champaign

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    Champaign, IL (125 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

    $29,990

    139,913 mi.
    Est. $564/mo

    CV Wholesale

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    Green Bay, WI (181 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

    $45,995

    82,842 mi.
    Est. $865/mo

    Skyline Auto Group LLC

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    Waynesboro, VA (531 mi)
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  • Gray 2015 GMC Sierra 2500 DenaliGray 2015 GMC Sierra 2500 DenaliGray 2015 GMC Sierra 2500 DenaliGray 2015 GMC Sierra 2500 DenaliGray 2015 GMC Sierra 2500 DenaliGray 2015 GMC Sierra 2500 Denali

    $31,900

    178,997 mi.
    Est. $600/mo

    Auto Town USA

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    Caldwell, ID (1,469 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

    $21,999

    242,699 mi.
    Est. $414/mo

    Top Deals Automotive

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    Conyers, GA (606 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

    $31,588

    $2K
    134,305 mi.
    Est. $594/mo

    Randy Wise Hyundai

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    Flint, MI (212 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

    $30,995

    97,988 mi.
    Est. $583/mo

    Hiller Ford

    4.4
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    Franklin, WI (76 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

    $32,998

    87,087 mi.
    Est. $620/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

    $39,900

    90,679 mi.
    Est. $750/mo

    Rides Auto Sales

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    Bismarck, ND (734 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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  • 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
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    Indianapolis, IN (174 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

    $31,497

    $500
    104,474 mi.
    Est. $592/mo

    Northwest Chevrolet of Bellingham

    4.6
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    Bellingham, WA (1,743 mi)
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GMC Sierra 2500 prices by year

Model year Average price Deals
2026 GMC Sierra 2500 Denali 9 Great deals
2025 GMC Sierra 2500 Denali $75,527 28 Great deals
2024 GMC Sierra 2500 Denali $70,459 17 Great deals
2023 GMC Sierra 2500 Denali $59,880 51 Great deals
2022 GMC Sierra 2500 Denali $58,450 41 Great deals
2021 GMC Sierra 2500 Denali $56,632 13 Great deals
2020 GMC Sierra 2500 Denali $52,894 9 Great deals
2019 GMC Sierra 2500 Denali $43,293 7 Great deals
2018 GMC Sierra 2500 Denali $44,185 49 Good deals
2017 GMC Sierra 2500 Denali $41,991 29 Good 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 $35,603, with pricing starting at $21,780.

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