Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $49,947

    5,458 mi.
    Est. $853/mo

    Pointe GMC

    4.0
    Check Availability
    Penns Grove, NJ (7 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $56,995

    3,693 mi.
    Est. $973/mo

    Joshua Motor Car Co Inc

    4.8
    Check Availability
    Pennsauken, NJ (24 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $59,219

    Est. $1,011/mo

    Pellegrino Buick GMC

    4.7
    Check Availability
    Williamstown, NJ (25 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $48,946

    15,071 mi.
    Est. $836/mo

    Pointe GMC

    4.0
    Check Availability
    Penns Grove, NJ (7 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $65,725

    $500

    MSRP $68,735

    Est. $1,122/mo

    Hill Buick GMC

    5.0
    Check Availability
    Newtown Square, PA (11 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $59,234

    $678
    Est. $1,011/mo

    Pellegrino Buick GMC

    4.7
    Check Availability
    Williamstown, NJ (25 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $62,028

    $681
    Est. $1,059/mo

    Pellegrino Buick GMC

    4.7
    Check Availability
    Williamstown, NJ (25 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLT

    $60,797

    $694
    Est. $1,038/mo

    Pellegrino Buick GMC

    4.7
    Check Availability
    Williamstown, NJ (25 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $66,425

    $500

    MSRP $69,435

    Est. $1,134/mo

    Hill Buick GMC

    5.0
    Check Availability
    Newtown Square, PA (11 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $65,930

    $3.5K

    MSRP $68,940

    Est. $1,126/mo

    Hill Buick GMC

    5.0
    Check Availability
    Newtown Square, PA (11 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $65,230

    $500

    MSRP $68,240

    Est. $1,114/mo

    Hill Buick GMC

    5.0
    Check Availability
    Newtown Square, PA (11 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $71,029

    MSRP $71,029

    Est. $1,213/mo

    Granite Run Buick GMC

    3.8
    Check Availability
    Media, PA (6 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $58,865

    MSRP $68,615

    Est. $1,005/mo

    Pointe GMC

    4.0
    Check Availability
    Penns Grove, NJ (7 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $55,690

    MSRP $68,440

    Est. $951/mo

    Pointe GMC

    4.0
    Check Availability
    Penns Grove, NJ (7 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $55,490

    $500

    MSRP $68,240

    Est. $947/mo

    Pointe GMC

    4.0
    Check Availability
    Penns Grove, NJ (7 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLTGlacier White Tricoat 2026 GMC Sierra 1500 SLT

    $69,864

    MSRP $72,025

    Est. $1,193/mo

    Burns Buick GMC

    4.8
    Check Availability
    MARLTON, NJ (27 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLTSterling Metallic 2026 GMC Sierra 1500 SLT

    $69,743

    MSRP $71,900

    Est. $1,191/mo

    Burns Buick GMC

    4.8
    Check Availability
    MARLTON, NJ (27 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $68,724

    MSRP $70,849

    Est. $1,173/mo

    Burns Buick GMC

    4.8
    Check Availability
    MARLTON, NJ (27 mi)
    Quick view
  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $68,681

    MSRP $70,805

    Est. $1,172/mo

    Burns Buick GMC

    4.8
    Check Availability
    MARLTON, NJ (27 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $61,396

    MSRP $63,295

    Est. $1,048/mo

    Burns Buick GMC

    4.8
    Check Availability
    MARLTON, NJ (27 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLTSummit White 2026 GMC Sierra 1500 SLT

    $67,619

    MSRP $69,710

    Est. $1,154/mo

    Burns Buick GMC

    4.8
    Check Availability
    MARLTON, NJ (27 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 SLT

    $57,199

    MSRP $66,660

    Est. $976/mo

    i.g. Burton Buick GMC of Elkton

    Check Availability
    Elkton, MD (25 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 SLT

    $65,725

    $1.5K

    MSRP $68,735

    Est. $1,122/mo

    Hill Buick GMC

    5.0
    Check Availability
    Newtown Square, PA (11 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 SLT

    $60,069

    MSRP $69,730

    Est. $1,025/mo

    i.g. Burton Buick GMC of Elkton

    Check Availability
    Elkton, MD (25 mi)
    Quick view
  • Glacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLTGlacier White 2026 GMC Sierra 1500 SLT

    $56,701

    Est. $968/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,565 delivery from Collinsville, IL (783 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLTOnyx Black 2026 GMC Sierra 1500 SLT

    $55,754

    Est. $952/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,565 delivery from Collinsville, IL (783 mi)
    Quick view

About the 2026 GMC Sierra 1500 SLT

Basics

SLT shown.

Seating
5
Door count
4
Drivetrain
Rear Wheel Drive
Combined MPG
17
Transmission
10-Speed A/T
Engine
305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
Side view of the 2026 GMC Sierra 1500 SLT
FAQs

How much does the 2026 GMC Sierra 1500 SLT cost?

The 2026 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $55,100.

What is the MPG of the 2026 GMC Sierra 1500 SLT?

The 2026 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 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 2026 GMC Sierra 1500 SLT?

The 2026 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:


Is the 2026 GMC Sierra 1500 SLT reliable?

The 2026 GMC Sierra 1500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.

Ratings (6 reviews)

83% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.3
Interior
4.3
Performance
4.5
Value
3.7
Exterior
4.5
Reliability
4.5
Trims

SLT (3 styles)

Style
2WD Crew Cab 147" SLT 4WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT
Inventory price
Starting at $55,100 Starting at $58,200 Starting at $58,900
Combined MPG
17 16 16
Engine
305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

2026 GMC Sierra 1500 SLT by city

GMC Sierra 1500 trims