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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

    $19,989

    $1K
    186,738 mi.
    Est. $341/mo

    Kearns Motor Car Co.

    4.6
    Check Availability
    Free delivery from Johnson Creek, WI (448 mi)
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  • White Frost Tri-Coat 2018 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2018 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2018 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2018 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2018 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2018 GMC Sierra 1500 SLT

    $29,372

    99,748 mi.
    Est. $501/mo

    Laura Buick GMC

    4.5
    Check Availability
    $343 delivery from Collinsville, IL (172 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

    $25,995

    142,075 mi.
    Est. $444/mo

    Weakley Nissan

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    Martin, TN (36 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

    $18,766

    $1K
    172,183 mi.
    Est. $320/mo

    Paducah Ford, Inc.

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    Paducah, KY (39 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

    $24,775

    $624
    146,991 mi.
    Est. $423/mo

    Wildcat Chevrolet

    4.4
    Check Availability
    Cadiz, KY (35 mi)
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About the 2018 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 2018 GMC Sierra 1500 SLT
FAQs

How much does the 2018 GMC Sierra 1500 SLT cost?

The 2018 GMC Sierra 1500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2018 Sierra 1500 SLT is $27,972, with pricing starting at $14,983.

What is the MPG of the 2018 GMC Sierra 1500 SLT?

The 2018 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.

Is the 2018 GMC Sierra 1500 SLT 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.

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

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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