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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

    $29,000

    $500
    77,077 mi.
    Est. $534/mo

    Larry H. Miller Dodge RAM Peoria

    4.7
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    Peoria, AZ (25 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

    $31,999

    $1K
    95,112 mi.
    Est. $590/mo

    JBA Motors, LLC

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    Mesa, AZ (5 mi)
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  • White Frost Tricoat 2018 GMC Sierra 1500 SLTWhite Frost Tricoat 2018 GMC Sierra 1500 SLTWhite Frost Tricoat 2018 GMC Sierra 1500 SLTWhite Frost Tricoat 2018 GMC Sierra 1500 SLTWhite Frost Tricoat 2018 GMC Sierra 1500 SLTWhite Frost Tricoat 2018 GMC Sierra 1500 SLT

    $28,999

    106,000 mi.
    Est. $534/mo

    Local Car Dealer

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    Phoenix, AZ (15 mi)
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  • Onyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 Denali

    $29,991

    82,995 mi.
    Est. $553/mo

    Ideal Cars East Main (Atlas)

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    Mesa, AZ (19 mi)
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  • White Frost Tricoat 2018 GMC Sierra 1500 DenaliWhite Frost Tricoat 2018 GMC Sierra 1500 DenaliWhite Frost Tricoat 2018 GMC Sierra 1500 DenaliWhite Frost Tricoat 2018 GMC Sierra 1500 DenaliWhite Frost Tricoat 2018 GMC Sierra 1500 DenaliWhite Frost Tricoat 2018 GMC Sierra 1500 Denali

    $25,300

    137,621 mi.
    Est. $466/mo

    Silo Auto Sales

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    Gilbert, AZ (13 mi)
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  • Stone Blue Metallic 2018 GMC Sierra 1500 SLTStone Blue Metallic 2018 GMC Sierra 1500 SLTStone Blue Metallic 2018 GMC Sierra 1500 SLTStone Blue Metallic 2018 GMC Sierra 1500 SLTStone Blue Metallic 2018 GMC Sierra 1500 SLTStone Blue Metallic 2018 GMC Sierra 1500 SLT

    $24,900

    $978
    90,038 mi.
    Est. $459/mo

    Yates Buick GMC

    3.1
    Check Availability
    Goodyear, AZ (25 mi)
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  • Onyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 Denali

    $32,995

    68,118 mi.
    Est. $608/mo

    Rollit Motors

    4.5
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    Mesa, AZ (9 mi)
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  • Quicksilver Metallic 2018 GMC Sierra 1500 SLTQuicksilver Metallic 2018 GMC Sierra 1500 SLTQuicksilver Metallic 2018 GMC Sierra 1500 SLTQuicksilver Metallic 2018 GMC Sierra 1500 SLTQuicksilver Metallic 2018 GMC Sierra 1500 SLTQuicksilver Metallic 2018 GMC Sierra 1500 SLT

    $30,496

    85,259 mi.
    Est. $562/mo

    Yates Buick GMC

    3.1
    Check Availability
    Goodyear, AZ (25 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

    $25,500

    106,000 mi.
    Est. $470/mo

    Yates Buick GMC

    3.1
    Check Availability
    Goodyear, AZ (25 mi)
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  • Onyx Black 2018 GMC Sierra 1500 SLTOnyx Black 2018 GMC Sierra 1500 SLT

    $31,991

    96,863 mi.
    Est. $590/mo

    Mark Kia

    4.1
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    Scottsdale, AZ (8 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

    $36,079

    63,758 mi.
    Est. $665/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (13 mi)
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  • Onyx Black 2018 GMC Sierra 1500 Denali

    $33,990

    88,065 mi.
    Est. $626/mo

    Audi Chandler

    4.9
    Check Availability
    Chandler, AZ (5 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 1500 SLT

    $29,500

    60,365 mi.
    Est. $544/mo

    AutoSavvy Gilbert

    4.7
    Check Availability
    Gilbert, AZ (6 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

    $21,989

    188,105 mi.
    Est. $405/mo

    Kearns Motor Car Co.

    4.6
    Check Availability
    Free delivery from Johnson Creek, WI (1419 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

    $34,998

    81,755 mi.
    Est. $645/mo

    CarMax South Broadway

    4.4
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    $299 delivery to Gilbert, AZ (13 mi)
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  • Onyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 DenaliOnyx Black 2018 GMC Sierra 1500 Denali

    $35,991

    $1K
    57,937 mi.
    Est. $663/mo

    Mercedes-Benz of Temecula

    3.4
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    Temecula, CA (303 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

    $20,990

    $454
    30,442 mi.
    Est. $387/mo

    AutoNation Toyota Irvine

    4.6
    Check Availability
    Irvine, CA (335 mi)
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  • Red Quartz Tintcoat 2018 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2018 GMC Sierra 1500 Denali

    $40,000

    63,268 mi.
    Est. $737/mo

    Flower Motor Company

    4.3
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    Montrose, CO (420 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

    $32,900

    $1K
    57,367 mi.
    Est. $606/mo

    Shamrock Auto Group

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    Pleasant Grove, UT (483 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

    $36,430

    44,517 mi.
    Est. $671/mo

    Stephen Wade Toyota

    3.8
    Check Availability
    St George, UT (273 mi)
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  • Quartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLT

    $32,455

    $769
    90,288 mi.
    Est. $598/mo

    Reliable Nissan

    4.3
    Check Availability
    Albuquerque, NM (326 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

    $28,992

    72,471 mi.
    Est. $534/mo

    Quebedeaux Buick GMC

    4.5
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    Tucson, AZ (100 mi)
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  • Stone Blue Metallic 2018 GMC Sierra 1500 BaseStone Blue Metallic 2018 GMC Sierra 1500 BaseStone Blue Metallic 2018 GMC Sierra 1500 BaseStone Blue Metallic 2018 GMC Sierra 1500 BaseStone Blue Metallic 2018 GMC Sierra 1500 BaseStone Blue Metallic 2018 GMC Sierra 1500 Base

    $20,990

    120,720 mi.
    Est. $387/mo

    Flagstaff Subaru

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    Flagstaff, AZ (129 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

    $25,756

    $238
    133,544 mi.
    Est. $475/mo

    Modern Classic Motors

    3.5
    Check Availability
    Grand Junction, CO (436 mi)
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  • Quartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLTQuartz 2018 GMC Sierra 1500 SLT

    $43,995

    26,858 mi.
    Est. $811/mo

    Nissan of Bakersfield

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    Bakersfield, CA (427 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

    $29,950

    50,204 mi.
    Est. $552/mo

    Durango Kia

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    Durango, CO (351 mi)
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  • Summit White 2018 GMC Sierra 1500 SLTSummit White 2018 GMC Sierra 1500 SLTSummit White 2018 GMC Sierra 1500 SLTSummit White 2018 GMC Sierra 1500 SLTSummit White 2018 GMC Sierra 1500 SLTSummit White 2018 GMC Sierra 1500 SLT

    $23,999

    117,436 mi.
    Est. $442/mo

    LSM Cars

    4.1
    Check Availability
    Fullerton, CA (348 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $57,659 6 Great deals
2025 GMC Sierra 1500 $52,443 20 Great deals
2024 GMC Sierra 1500 $52,618 5 Great deals
2023 GMC Sierra 1500 $45,599 28 Good deals
2022 GMC Sierra 1500 $48,753 18 Good deals
2021 GMC Sierra 1500 $36,465 7 Great deals
2020 GMC Sierra 1500 $34,558 11 Good deals
2019 GMC Sierra 1500 $30,532 13 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 $27,362, with pricing starting at $9,564.

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.

What are some similar vehicles and competitors of the 2018 GMC Sierra 1500?

The 2018 GMC Sierra 1500 compares to and/or competes against the following vehicles:


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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