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  • Onyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 Base

    $21,839

    86,541 mi.
    Est. $410/mo

    Kerry Chevrolet of Alexandria

    4.5
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    Alexandria, KY (263 mi)

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  • Summit White 2018 GMC Sierra 1500 BaseSummit White 2018 GMC Sierra 1500 BaseSummit White 2018 GMC Sierra 1500 BaseSummit White 2018 GMC Sierra 1500 BaseSummit White 2018 GMC Sierra 1500 BaseSummit White 2018 GMC Sierra 1500 Base

    $19,499

    64,761 mi.
    Est. $367/mo

    Florida Fine Cars Miami

    5.0
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    Miami, FL (1,178 mi)

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  • Onyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLE

    $16,493

    $3.9K
    140,569 mi.
    Est. $310/mo

    Shaheen Chevrolet

    4.5
    Check Availability
    Lansing, MI (167 mi)
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  • Summit White 2018 GMC Sierra 1500 SLESummit White 2018 GMC Sierra 1500 SLESummit White 2018 GMC Sierra 1500 SLESummit White 2018 GMC Sierra 1500 SLESummit White 2018 GMC Sierra 1500 SLESummit White 2018 GMC Sierra 1500 SLE

    $20,995

    101,982 mi.
    Est. $395/mo

    Auto Outlet of Wolcott

    4.5
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    Wolcott, NY (559 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 1500 SLTDark Slate Metallic 2018 GMC Sierra 1500 SLTDark Slate Metallic 2018 GMC Sierra 1500 SLTDark Slate Metallic 2018 GMC Sierra 1500 SLTDark Slate Metallic 2018 GMC Sierra 1500 SLTDark Slate Metallic 2018 GMC Sierra 1500 SLT

    $26,095

    101,811 mi.
    Est. $490/mo

    DriveTime of NE Nashville

    4.5
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    Madison, TN (390 mi)
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  • Onyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLE

    $21,155

    101,000 mi.
    Est. $398/mo

    DELLA Mitsubishi

    4.1
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    Plattsburgh, NY (736 mi)
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  • White 2018 GMC Sierra 1500 BaseWhite 2018 GMC Sierra 1500 BaseWhite 2018 GMC Sierra 1500 BaseWhite 2018 GMC Sierra 1500 BaseWhite 2018 GMC Sierra 1500 BaseWhite 2018 GMC Sierra 1500 Base

    $14,995

    143,810 mi.
    Est. $282/mo

    Buchanan Auto Sales

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    North Augusta, SC (656 mi)
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  • Deep Mahogany Metallic 2018 GMC Sierra 1500 SLTDeep Mahogany Metallic 2018 GMC Sierra 1500 SLTDeep Mahogany Metallic 2018 GMC Sierra 1500 SLTDeep Mahogany Metallic 2018 GMC Sierra 1500 SLTDeep Mahogany Metallic 2018 GMC Sierra 1500 SLTDeep Mahogany Metallic 2018 GMC Sierra 1500 SLT

    $22,838

    $887
    116,013 mi.
    Est. $429/mo

    Vision Automotive Group - Delivery from Rochester, NY for Buffalo, NY

    1.9
    Check Availability
    Online seller

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  • Red Quartz Tintcoat 2018 GMC Sierra 1500 SLERed Quartz Tintcoat 2018 GMC Sierra 1500 SLERed Quartz Tintcoat 2018 GMC Sierra 1500 SLERed Quartz Tintcoat 2018 GMC Sierra 1500 SLERed Quartz Tintcoat 2018 GMC Sierra 1500 SLERed Quartz Tintcoat 2018 GMC Sierra 1500 SLE

    $20,398

    $102
    133,593 mi.
    Est. $383/mo

    Loudon Motors Ford

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    Minerva, OH (349 mi)
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  • 2018 GMC Sierra 1500 SLT2018 GMC Sierra 1500 SLT2018 GMC Sierra 1500 SLT2018 GMC Sierra 1500 SLT2018 GMC Sierra 1500 SLT2018 GMC Sierra 1500 SLT

    $24,991

    138,010 mi.
    Est. $470/mo

    Southgate Motor Sales

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    Cambridge, OH (342 mi)
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  • White 2018 GMC Sierra 1500 SLEWhite 2018 GMC Sierra 1500 SLEWhite 2018 GMC Sierra 1500 SLEWhite 2018 GMC Sierra 1500 SLEWhite 2018 GMC Sierra 1500 SLEWhite 2018 GMC Sierra 1500 SLE

    $23,995

    104,330 mi.
    Est. $451/mo

    Hot Wheels & Deals

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    Leesburg, FL (960 mi)
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  • Summit White 2018 GMC Sierra 1500Summit White 2018 GMC Sierra 1500Summit White 2018 GMC Sierra 1500Summit White 2018 GMC Sierra 1500Summit White 2018 GMC Sierra 1500Summit White 2018 GMC Sierra 1500

    $21,443

    87,221 mi.
    Est. $403/mo

    Laria Chevrolet Buick

    3.9
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    Rittman, OH (310 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 1500 SLEDark Slate Metallic 2018 GMC Sierra 1500 SLEDark Slate Metallic 2018 GMC Sierra 1500 SLEDark Slate Metallic 2018 GMC Sierra 1500 SLEDark Slate Metallic 2018 GMC Sierra 1500 SLEDark Slate Metallic 2018 GMC Sierra 1500 SLE

    $20,700

    118,197 mi.
    Est. $389/mo

    Sundance Chevrolet

    4.6
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    Grand Ledge, MI (161 mi)
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  • Onyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLEOnyx Black 2018 GMC Sierra 1500 SLE

    $19,870

    137,945 mi.
    Est. $373/mo

    Weirs Motor Sales, Inc.

    4.6
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    Arundel, ME (876 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 1500 SLEQuicksilver Metallic 2018 GMC Sierra 1500 SLEQuicksilver Metallic 2018 GMC Sierra 1500 SLEQuicksilver Metallic 2018 GMC Sierra 1500 SLEQuicksilver Metallic 2018 GMC Sierra 1500 SLEQuicksilver Metallic 2018 GMC Sierra 1500 SLE

    $21,912

    $388
    85,792 mi.
    Est. $412/mo

    Andy Mohr Chevrolet

    4.5
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    Plainfield, IN (164 mi)
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  • Onyx Black 2018 GMC Sierra 1500 SLTOnyx Black 2018 GMC Sierra 1500 SLTOnyx Black 2018 GMC Sierra 1500 SLTOnyx Black 2018 GMC Sierra 1500 SLTOnyx Black 2018 GMC Sierra 1500 SLTOnyx Black 2018 GMC Sierra 1500 SLT

    $23,795

    $200
    99,403 mi.
    Est. $447/mo

    Indy Auto Man - Westfield

    4.4
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    Westfield, IN (150 mi)
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  • Red 2018 GMC Sierra 1500 SLERed 2018 GMC Sierra 1500 SLERed 2018 GMC Sierra 1500 SLERed 2018 GMC Sierra 1500 SLERed 2018 GMC Sierra 1500 SLERed 2018 GMC Sierra 1500 SLE

    $24,595

    101,188 mi.
    Est. $462/mo

    DriveTime of Savannah

    4.9
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    Savannah, GA (772 mi)
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  • Black 2018 GMC Sierra 1500 BaseBlack 2018 GMC Sierra 1500 BaseBlack 2018 GMC Sierra 1500 BaseBlack 2018 GMC Sierra 1500 BaseBlack 2018 GMC Sierra 1500 BaseBlack 2018 GMC Sierra 1500 Base

    $19,495

    $1.5K
    106,642 mi.
    Est. $366/mo

    J&S Autohaus III

    4.3
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    Hamilton, NJ (683 mi)
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  • Onyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 BaseOnyx Black 2018 GMC Sierra 1500 Base

    $24,788

    $211
    76,114 mi.
    Est. $466/mo

    Apple Ford White Bear Lake

    4.6
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    White Bear Lake, MN (349 mi)
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  • Silver 2018 GMC Sierra 1500 BaseSilver 2018 GMC Sierra 1500 BaseSilver 2018 GMC Sierra 1500 BaseSilver 2018 GMC Sierra 1500 BaseSilver 2018 GMC Sierra 1500 BaseSilver 2018 GMC Sierra 1500 Base

    $20,188

    96,968 mi.
    Est. $379/mo

    Lithia Chrysler Jeep Dodge Ram FIAT of Tri-Cities

    4.8
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    Kennewick, WA (1,586 mi)
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  • Blue 2018 GMC Sierra 1500 BaseBlue 2018 GMC Sierra 1500 BaseBlue 2018 GMC Sierra 1500 BaseBlue 2018 GMC Sierra 1500 BaseBlue 2018 GMC Sierra 1500 BaseBlue 2018 GMC Sierra 1500 Base

    $27,995

    66,871 mi.
    Est. $526/mo

    S&M Auto Sales

    2.1
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    Hickory Hills, IL (15 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 1500 SLTRed Quartz Tintcoat 2018 GMC Sierra 1500 SLTRed Quartz Tintcoat 2018 GMC Sierra 1500 SLTRed Quartz Tintcoat 2018 GMC Sierra 1500 SLTRed Quartz Tintcoat 2018 GMC Sierra 1500 SLTRed Quartz Tintcoat 2018 GMC Sierra 1500 SLT

    $25,188

    104,000 mi.
    Est. $473/mo

    Piazza Honda of Pottstown

    4.7
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    Royersford, PA (640 mi)
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  • Black 2018 GMC Sierra 1500 SLEBlack 2018 GMC Sierra 1500 SLEBlack 2018 GMC Sierra 1500 SLEBlack 2018 GMC Sierra 1500 SLEBlack 2018 GMC Sierra 1500 SLEBlack 2018 GMC Sierra 1500 SLE

    $23,900

    84,233 mi.
    Est. $449/mo

    Suburban Ford of Sterling Heights

    4.6
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    Sterling Heights, MI (241 mi)
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  • Dark Slate Metallic 2018 GMC Sierra 1500 BaseDark Slate Metallic 2018 GMC Sierra 1500 BaseDark Slate Metallic 2018 GMC Sierra 1500 BaseDark Slate Metallic 2018 GMC Sierra 1500 BaseDark Slate Metallic 2018 GMC Sierra 1500 BaseDark Slate Metallic 2018 GMC Sierra 1500 Base

    $17,485

    $510
    140,561 mi.
    Est. $329/mo

    Medina Auto Mall

    4.5
    Check Availability
    Medina, OH (307 mi)
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About the 2018 GMC Sierra 1500

Basics

Base shown (base trim).

Seating
3
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
20
Transmission
6-Speed A/T
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
Side view of the 2018 GMC Sierra 1500
FAQs

How much does the 2018 GMC Sierra 1500 cost?

The 2018 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2018 Sierra 1500 is $27,482, with pricing starting at $350.

What is the MPG of the 2018 GMC Sierra 1500?

The 2018 GMC Sierra 1500 offers up to 18 MPG in city driving and 24 MPG on the highway for a combined rating of 20 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 trim, driving conditions, driving habits, vehicle maintenance, and other factors.

Is the 2018 GMC Sierra 1500 reliable?

The 2018 GMC Sierra 1500 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 2018 Sierra 1500 owners.

Is the 2018 GMC Sierra 1500 a good truck?

Below are the Cars.com consumer ratings for the 2018 GMC Sierra 1500.

(172 reviews)
Rating breakdown (out of 5):
Comfort
4.9
Interior
4.8
Performance
4.7
Value
4.6
Exterior
4.8
Reliability
4.7
Ratings (172 reviews)

93% of drivers recommend this car

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

Base (10 styles)

Style
2WD Crew Cab 143.5" 4WD Crew Cab 143.5" 4WD Double Cab 143.5" 2WD Double Cab 143.5" 4WD Crew Cab 153.0" 2WD Crew Cab 153.0" 4WD Reg Cab 119.0" 2WD Reg Cab 119.0" 2WD Reg Cab 133.0" 4WD Reg Cab 133.0"
Inventory price
Starting at $35,500 Starting at $38,700 Starting at $37,000 Starting at $33,000 Starting at $40,100 Starting at $36,900 Starting at $32,900 Starting at $29,000 Starting at $29,300 Starting at $33,200
Combined MPG
20 19 19 20 18 19 19 20 20 19
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

Denali (3 styles)

Style
4WD Crew Cab 153.0" Denali 2WD Crew Cab 143.5" Denali 4WD Crew Cab 143.5" Denali
Inventory price
Starting at $56,300 Starting at $52,900 Starting at $56,000
Combined MPG
17 18 17
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)

SLE (10 styles)

Style
4WD Double Cab 143.5" SLE 2WD Double Cab 143.5" SLE 4WD Crew Cab 153.0" SLE 2WD Crew Cab 153.0" SLE 2WD Crew Cab 143.5" SLE 4WD Crew Cab 143.5" SLE 2WD Reg Cab 119.0" SLE 4WD Reg Cab 133.0" SLE 4WD Reg Cab 119.0" SLE 2WD Reg Cab 133.0" SLE
Inventory price
Starting at $42,100 Starting at $38,300 Starting at $46,100 Starting at $42,100 Starting at $40,700 Starting at $44,700 Starting at $35,700 Starting at $39,900 Starting at $39,600 Starting at $35,800
Combined MPG
19 20 18 19 20 19 20 19 19 20
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

SLT (5 styles)

Style
2WD Double Cab 143.5" SLT 4WD Crew Cab 143.5" SLT 2WD Crew Cab 143.5" SLT 4WD Double Cab 143.5" SLT 4WD Crew Cab 153.0" SLT
Inventory price
Starting at $42,800 Starting at $48,400 Starting at $45,200 Starting at $46,000 Starting at $48,700
Combined MPG
19 17 18 18 17
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)
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