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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

    $24,700

    91,619 mi.
    Est. $464/mo

    Frankfort Auto Haus

    4.9
    Check Availability
    Frankfort, IL (24 mi)
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  • Cardinal Red 2018 GMC Sierra 1500 SLTCardinal Red 2018 GMC Sierra 1500 SLTCardinal Red 2018 GMC Sierra 1500 SLTCardinal Red 2018 GMC Sierra 1500 SLTCardinal Red 2018 GMC Sierra 1500 SLTCardinal Red 2018 GMC Sierra 1500 SLT

    $26,750

    106,917 mi.
    Est. $503/mo

    Shaver Preferred Motors

    4.2
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    Merriville, IN (29 mi)
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  • White 2018 GMC Sierra 1500 DenaliWhite 2018 GMC Sierra 1500 DenaliWhite 2018 GMC Sierra 1500 DenaliWhite 2018 GMC Sierra 1500 DenaliWhite 2018 GMC Sierra 1500 DenaliWhite 2018 GMC Sierra 1500 Denali

    $19,990

    153,115 mi.
    Est. $376/mo

    Auto Gallery Chicago

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    Addison, IL (17 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 1500 BaseQuicksilver Metallic 2018 GMC Sierra 1500 BaseQuicksilver Metallic 2018 GMC Sierra 1500 BaseQuicksilver Metallic 2018 GMC Sierra 1500 BaseQuicksilver Metallic 2018 GMC Sierra 1500 BaseQuicksilver Metallic 2018 GMC Sierra 1500 Base

    $12,495

    171,865 mi.
    Est. $235/mo

    Schererville Auto Sales

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    Schererville, IN (28 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
    Check Availability
    Hickory Hills, IL (12 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

    $19,999

    34,358 mi.
    Est. $376/mo

    West Chicago Auto Mall

    3.6
    Check Availability
    West Chicago, IL (5 mi)
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  • $38,888

    50,169 mi.
    Est. $731/mo

    Chicago Auto Place

    4.0
    Check Availability
    Downers Grove, IL (17 mi)
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  • $26,950

    113,139 mi.
    Est. $507/mo

    Rizza Cadillac Buick GMC

    4.2
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    Tinley Park, IL (19 mi)
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  • $25,888

    64,393 mi.
    Est. $487/mo

    Chevrolet of Merrillville

    4.9
    Check Availability
    Merrillville, IN (30 mi)
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  • White 2018 GMC Sierra 1500 SLTWhite 2018 GMC Sierra 1500 SLTWhite 2018 GMC Sierra 1500 SLTWhite 2018 GMC Sierra 1500 SLTWhite 2018 GMC Sierra 1500 SLTWhite 2018 GMC Sierra 1500 SLT

    $31,998

    76,421 mi.
    Est. $601/mo

    CarMax Bristol

    5.0
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    $399 delivery to Oak Lawn, IL (11 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

    $33,905

    $1K
    44,724 mi.
    Est. $637/mo

    Andy Mohr Chevrolet

    4.5
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    $300 delivery from Plainfield, IN (163 mi)
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  • Onyx Black 2018 GMC Sierra 1500 4WD Crew Cab 143.5" DenaliOnyx Black 2018 GMC Sierra 1500 4WD Crew Cab 143.5" DenaliOnyx Black 2018 GMC Sierra 1500 4WD Crew Cab 143.5" DenaliOnyx Black 2018 GMC Sierra 1500 4WD Crew Cab 143.5" DenaliOnyx Black 2018 GMC Sierra 1500 4WD Crew Cab 143.5" DenaliOnyx Black 2018 GMC Sierra 1500 4WD Crew Cab 143.5" Denali

    $30,376

    92,887 mi.
    Est. $571/mo

    Your Choice Autos Waukegan

    4.7
    Check Availability
    Waukegan, IL (37 mi)
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  • Gray 2018 GMC Sierra 1500 DenaliGray 2018 GMC Sierra 1500 DenaliGray 2018 GMC Sierra 1500 DenaliGray 2018 GMC Sierra 1500 DenaliGray 2018 GMC Sierra 1500 DenaliGray 2018 GMC Sierra 1500 Denali

    $28,376

    126,793 mi.
    Est. $533/mo

    Your Choice Auto Sales of Joliet

    4.7
    Check Availability
    Joliet, IL (33 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

    $22,990

    119,893 mi.
    Est. $432/mo

    Fox Valley Buick GMC

    4.3
    Check Availability
    St Charles, IL (33 mi)
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  • Mahogany 2018 GMC Sierra 1500 SLEMahogany 2018 GMC Sierra 1500 SLEMahogany 2018 GMC Sierra 1500 SLEMahogany 2018 GMC Sierra 1500 SLEMahogany 2018 GMC Sierra 1500 SLEMahogany 2018 GMC Sierra 1500 SLE

    $29,955

    61,659 mi.
    Est. $563/mo

    Ray Chevrolet

    4.6
    Check Availability
    Fox Lake, IL (46 mi)
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  • Stone Blue Metallic 2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLTStone Blue Metallic 2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLTStone Blue Metallic 2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLTStone Blue Metallic 2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLTStone Blue Metallic 2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLTStone Blue Metallic 2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLT

    $23,376

    126,757 mi.
    Est. $439/mo

    Your Choice Autos Waukegan

    4.7
    Check Availability
    Waukegan, IL (37 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

    $23,937

    91,920 mi.
    Est. $450/mo

    Simotes Motor Sales

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    Minooka, IL (41 mi)
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  • Onyx Black 2018 GMC Sierra 1500 Denali

    $28,912

    110,259 mi.
    Est. $543/mo

    Woody Buick GMC of Gurnee

    5.0
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    Gurnee, IL (40 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $61,922 5 Great deals
2025 GMC Sierra 1500 $55,901 8 Great deals
2024 GMC Sierra 1500 $49,278 38 Good deals
2023 GMC Sierra 1500 $47,738 12 Great deals
2022 GMC Sierra 1500 $44,438 14 Great deals
2021 GMC Sierra 1500 $37,784 9 Great deals
2020 GMC Sierra 1500 $35,287 7 Great deals
2019 GMC Sierra 1500 $31,876 11 Good deals

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 $27,404, with pricing starting at $9,574.

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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