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  • Quicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLT

    $21,438

    77,987 mi.
    Est. $404/mo

    South Dayton Toyota

    4.6
    Miamisburg, OH (237 mi)
    Check Availability

  • White 2015 GMC Sierra 1500 SLTWhite 2015 GMC Sierra 1500 SLTWhite 2015 GMC Sierra 1500 SLTWhite 2015 GMC Sierra 1500 SLTWhite 2015 GMC Sierra 1500 SLTWhite 2015 GMC Sierra 1500 SLT

    $20,499

    125,685 mi.
    Est. $386/mo

    Southern Buick GMC Virginia Beach

    3.5
    Virginia Beach, VA (710 mi)
    Check Availability

  • Quicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLT

    $21,789

    $475
    100,475 mi.
    Est. $410/mo

    LaFontaine Buick GMC of Highland

    4.7
    Highland, MI (210 mi)
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  • Iridium 2015 GMC Sierra 1500 SLTIridium 2015 GMC Sierra 1500 SLTIridium 2015 GMC Sierra 1500 SLTIridium 2015 GMC Sierra 1500 SLTIridium 2015 GMC Sierra 1500 SLTIridium 2015 GMC Sierra 1500 SLT

    $22,796

    120,977 mi.
    Est. $429/mo

    Toyota of Greensboro

    4.4
    Greensboro, NC (579 mi)
    Check Availability
  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $21,990

    $1K
    108,265 mi.
    Est. $414/mo

    Concordville Nissan

    4.8
    Glen Mills, PA (647 mi)
    Check Availability
  • Quicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLT

    $19,996

    $1.7K
    123,321 mi.
    Est. $377/mo

    AutoNation Honda Chandler

    4.8
    Chandler, AZ (1,444 mi)
    Check Availability
  • Black 2015 GMC Sierra 1500 SLTBlack 2015 GMC Sierra 1500 SLTBlack 2015 GMC Sierra 1500 SLTBlack 2015 GMC Sierra 1500 SLTBlack 2015 GMC Sierra 1500 SLTBlack 2015 GMC Sierra 1500 SLT

    $34,998

    19,537 mi.
    Est. $659/mo

    CarMax Merrillville

    4.0
    Merrillville, IN (33 mi)
    Check Availability
  • Bronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLT

    $26,043

    $1.4K
    59,759 mi.
    Est. $491/mo

    Spitzer Chevrolet St. Marys

    4.8
    Saint Marys, PA (470 mi)
    Check Availability
  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $12,648

    221,883 mi.
    Est. $238/mo

    PAW - Public Auto Wholesale

    St. Cloud, MN (411 mi)
    Check Availability

  • Summit White 2015 GMC Sierra 1500 SLTSummit White 2015 GMC Sierra 1500 SLTSummit White 2015 GMC Sierra 1500 SLTSummit White 2015 GMC Sierra 1500 SLTSummit White 2015 GMC Sierra 1500 SLTSummit White 2015 GMC Sierra 1500 SLT

    $11,009

    $805
    190,799 mi.
    Est. $207/mo

    Serra Mazda Brighton

    4.7
    Brighton, MI (203 mi)
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  • Quicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLT

    $21,438

    77,987 mi.
    Est. $404/mo

    South Dayton Toyota

    4.6
    Miamisburg, OH (237 mi)
    Check Availability
  • Sonoma Red Metallic 2015 GMC Sierra 1500 SLTSonoma Red Metallic 2015 GMC Sierra 1500 SLTSonoma Red Metallic 2015 GMC Sierra 1500 SLTSonoma Red Metallic 2015 GMC Sierra 1500 SLTSonoma Red Metallic 2015 GMC Sierra 1500 SLTSonoma Red Metallic 2015 GMC Sierra 1500 SLT

    $19,995

    133,324 mi.
    Est. $377/mo

    Zain Motors

    4.5
    Springfield, IL (178 mi)
    Check Availability
  • Emerald Green Metallic 2015 GMC Sierra 1500 SLTEmerald Green Metallic 2015 GMC Sierra 1500 SLTEmerald Green Metallic 2015 GMC Sierra 1500 SLTEmerald Green Metallic 2015 GMC Sierra 1500 SLTEmerald Green Metallic 2015 GMC Sierra 1500 SLTEmerald Green Metallic 2015 GMC Sierra 1500 SLT

    $27,095

    71,804 mi.
    Est. $510/mo

    DriveTime of Albany

    5.0
    Albany, GA (739 mi)
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  • Quicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLT

    $21,100

    139,395 mi.
    Est. $398/mo

    Albany Chrysler Dodge Jeep Ram

    4.4
    Albany, GA (738 mi)
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  • Iridium Metallic 2015 GMC Sierra 1500 SLTIridium Metallic 2015 GMC Sierra 1500 SLTIridium Metallic 2015 GMC Sierra 1500 SLTIridium Metallic 2015 GMC Sierra 1500 SLTIridium Metallic 2015 GMC Sierra 1500 SLTIridium Metallic 2015 GMC Sierra 1500 SLT

    $19,833

    122,153 mi.
    Est. $374/mo

    KarGenie

    2.3
    Fontana, CA (1,700 mi)
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  • Gray 2015 GMC Sierra 1500 SLTGray 2015 GMC Sierra 1500 SLTGray 2015 GMC Sierra 1500 SLTGray 2015 GMC Sierra 1500 SLTGray 2015 GMC Sierra 1500 SLTGray 2015 GMC Sierra 1500 SLT

    $27,795

    $600
    105,071 mi.
    Est. $524/mo

    DriveTime of Dallas

    5.0
    Dallas, TX (814 mi)
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  • White Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLT

    $18,968

    $400
    131,429 mi.
    Est. $357/mo

    Motorcars Express

    4.9
    Alsip, IL (16 mi)
    Check Availability
  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $16,022

    163,030 mi.
    Est. $302/mo

    Skyline Mitsubishi

    4.9
    Thornton, CO (917 mi)
    Check Availability
  • Bronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLT

    $25,700

    68,568 mi.
    Est. $484/mo

    Bob Maxey Chevrolet Inc

    4.5
    Garden City, MI (222 mi)
    Check Availability
  • White Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLTWhite Diamond Tricoat 2015 GMC Sierra 1500 SLT

    $16,337

    $513
    167,523 mi.
    Est. $308/mo

    Link Chrysler Dodge Jeep Ram

    4.8
    Rice Lake, WI (322 mi)
    Check Availability
  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $21,110

    $1.1K
    118,509 mi.
    Est. $398/mo

    Santa Fe Mazda

    Santa Fe, NM (1,076 mi)
    Check Availability

  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $20,245

    134,248 mi.
    Est. $381/mo

    Lewiston Auto Co., Inc.

    4.9
    Lewiston, MN (259 mi)
    Check Availability
  • Silver 2015 GMC Sierra 1500 SLTSilver 2015 GMC Sierra 1500 SLTSilver 2015 GMC Sierra 1500 SLTSilver 2015 GMC Sierra 1500 SLTSilver 2015 GMC Sierra 1500 SLTSilver 2015 GMC Sierra 1500 SLT

    $10,184

    $1K
    243,000 mi.
    Est. $192/mo

    Frieling Auto Sales

    Manhattan, KS (503 mi)
    Check Availability
  • GRAY 2015 GMC Sierra 1500 SLTGRAY 2015 GMC Sierra 1500 SLTGRAY 2015 GMC Sierra 1500 SLTGRAY 2015 GMC Sierra 1500 SLTGRAY 2015 GMC Sierra 1500 SLTGRAY 2015 GMC Sierra 1500 SLT

    $16,191

    165,910 mi.
    Est. $305/mo

    Ratchet Motorsports LLC

    Gibsonton, FL (1,015 mi)
    Check Availability
  • Bronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLTBronze Alloy Metallic 2015 GMC Sierra 1500 SLT

    $18,055

    $400
    114,251 mi.
    Est. $340/mo

    TML Auto

    Appleton, WI (173 mi)
    Check Availability
  • Quicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLTQuicksilver Metallic 2015 GMC Sierra 1500 SLT

    $13,399

    $500
    170,688 mi.
    Est. $252/mo

    Eide Chevrolet

    Mandan, ND (737 mi)
    Check Availability
  • Light Steel Gray Metallic 2015 GMC Sierra 1500 SLTLight Steel Gray Metallic 2015 GMC Sierra 1500 SLTLight Steel Gray Metallic 2015 GMC Sierra 1500 SLTLight Steel Gray Metallic 2015 GMC Sierra 1500 SLTLight Steel Gray Metallic 2015 GMC Sierra 1500 SLTLight Steel Gray Metallic 2015 GMC Sierra 1500 SLT

    $19,948

    $2K
    112,669 mi.
    Est. $376/mo

    Ron Marhofer Buick GMC

    4.2
    North Canton, OH (330 mi)
    Check Availability

  • Stone Blue Metallic 2015 GMC Sierra 1500 SLTStone Blue Metallic 2015 GMC Sierra 1500 SLTStone Blue Metallic 2015 GMC Sierra 1500 SLTStone Blue Metallic 2015 GMC Sierra 1500 SLTStone Blue Metallic 2015 GMC Sierra 1500 SLTStone Blue Metallic 2015 GMC Sierra 1500 SLT

    $12,900

    199,469 mi.
    Est. $243/mo

    Matt and Terrys Auto Sales

    Granby, MO (494 mi)
    Check Availability
  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $18,395

    156,235 mi.
    Est. $347/mo

    Reo Motors

    Milwaukee, WI (79 mi)
    Check Availability
  • Onyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLTOnyx Black 2015 GMC Sierra 1500 SLT

    $22,390

    $2.8K
    95,093 mi.
    Est. $422/mo

    John's Rt.13 Auto Sales

    Levittown, PA (678 mi)
    Check Availability

GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 SLT 202 Great deals
2025 GMC Sierra 1500 SLT $41,126 504 Great deals
2024 GMC Sierra 1500 SLT $43,215 221 Great deals
2023 GMC Sierra 1500 SLT $41,294 171 Great deals
2022 GMC Sierra 1500 SLT $38,730 81 Great deals
2021 GMC Sierra 1500 SLT $33,791 146 Great deals
2020 GMC Sierra 1500 SLT $32,418 99 Great deals
2019 GMC Sierra 1500 SLT $30,788 59 Great deals
2018 GMC Sierra 1500 SLT $26,817 144 Great deals
2017 GMC Sierra 1500 SLT $23,365 52 Great deals

About the 2015 GMC Sierra 1500 SLT

Basics

SLT shown.

Seating
6
Door count
4
Drivetrain
Rear Wheel Drive
Combined MPG
19
Transmission
6-Speed A/T
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
Side view of the 2015 GMC Sierra 1500 SLT
FAQs

How much does the 2015 GMC Sierra 1500 SLT cost?

The 2015 GMC Sierra 1500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2015 Sierra 1500 SLT is $19,977, with pricing starting at $5,500.

What is the MPG of the 2015 GMC Sierra 1500 SLT?

The 2015 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 23 MPG on the highway for a combined rating of 19 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 2015 GMC Sierra 1500 SLT?

The 2015 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:


Is the 2015 GMC Sierra 1500 SLT reliable?

The 2015 GMC Sierra 1500 has an average reliability rating of 4.4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2015 Sierra 1500 owners.

Ratings (140 reviews)

87% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.6
Interior
4.7
Performance
4.5
Value
4.4
Exterior
4.7
Reliability
4.4
Trims

SLT (6 styles)

Style
4WD Crew Cab 143.5" SLT 2WD Crew Cab 153.0" SLT 4WD Crew Cab 153.0" SLT 2WD Crew Cab 143.5" SLT 4WD Double Cab 143.5" SLT 2WD Double Cab 143.5" SLT
Inventory price
Starting at $46,860 Starting at $44,010 Starting at $47,160 Starting at $43,710 Starting at $44,500 Starting at $41,250
Combined MPG
18 19 18 19 18 19
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

2015 GMC Sierra 1500 trims