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
  • Onyx Black 2026 GMC Sierra 1500 AT4

    $70,148

    Est. $1,280/mo

    Lorenzo Buick GMC

    4.4
    Check Availability
    Miami, FL (9 mi)

    Quick view
  • Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4

    $76,401

    MSRP $75,210

    Est. $1,394/mo

    Brickell Buick & GMC

    4.4
    Check Availability
    Miami, FL (9 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $74,945

    MSRP $75,450

    Est. $1,367/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4

    $72,843

    MSRP $77,549

    Est. $1,329/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4

    $70,801

    MSRP $75,329

    Est. $1,292/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4

    $72,269

    MSRP $76,925

    Est. $1,318/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $72,885

    MSRP $77,595

    Est. $1,330/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $72,300

    MSRP $76,959

    Est. $1,319/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4Coastal Dune 2026 GMC Sierra 1500 AT4

    $72,544

    MSRP $77,224

    Est. $1,323/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4

    $70,801

    MSRP $75,329

    Est. $1,292/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $71,767

    MSRP $76,379

    Est. $1,309/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $74,545

    MSRP $74,050

    Est. $1,360/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $75,250

    MSRP $74,755

    Est. $1,373/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $74,050

    MSRP $73,555

    Est. $1,351/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $73,424

    MSRP $73,929

    Est. $1,339/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Dune 2026 GMC Sierra 1500 AT4Dune 2026 GMC Sierra 1500 AT4Dune 2026 GMC Sierra 1500 AT4Dune 2026 GMC Sierra 1500 AT4Dune 2026 GMC Sierra 1500 AT4Dune 2026 GMC Sierra 1500 AT4

    $73,919

    MSRP $74,424

    Est. $1,348/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $73,919

    MSRP $74,424

    Est. $1,348/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $75,244

    MSRP $75,749

    Est. $1,373/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $74,945

    MSRP $75,450

    Est. $1,367/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Sterling 2026 GMC Sierra 1500 AT4Sterling 2026 GMC Sierra 1500 AT4Sterling 2026 GMC Sierra 1500 AT4Sterling 2026 GMC Sierra 1500 AT4Sterling 2026 GMC Sierra 1500 AT4Sterling 2026 GMC Sierra 1500 AT4

    $75,440

    MSRP $75,945

    Est. $1,376/mo

    Williamson Buick GMC

    4.6
    Check Availability
    Miami, FL (2 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4

    $127,192

    MSRP $75,650

    Est. $2,320/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $113,703

    MSRP $75,155

    Est. $2,074/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $127,192

    MSRP $75,650

    Est. $2,320/mo

    Vera Buick GMC

    4.7
    Check Availability
    Pembroke Pines, FL (24 mi)
    Quick view
  • Gray 2026 GMC Sierra 1500 AT4Gray 2026 GMC Sierra 1500 AT4Gray 2026 GMC Sierra 1500 AT4Gray 2026 GMC Sierra 1500 AT4Gray 2026 GMC Sierra 1500 AT4Gray 2026 GMC Sierra 1500 AT4

    $66,995

    $3.2K
    Est. $1,222/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $841 delivery from Reidsville, NC (738 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $66,495

    Est. $1,213/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $841 delivery from Reidsville, NC (738 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $63,796

    $1K
    6,043 mi.
    Est. $1,164/mo

    Ed Morse Sawgrass Auto Mall

    4.3
    Check Availability
    Sunrise, FL (34 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4Onyx Black 2026 GMC Sierra 1500 AT4

    $103,908

    MSRP $75,650

    Est. $1,896/mo

    Ed Morse Sawgrass Auto Mall

    4.3
    Check Availability
    Sunrise, FL (34 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4

    $64,246

    MSRP $76,648

    Est. $1,172/mo

    Ed Morse Sawgrass Auto Mall

    4.3
    Check Availability
    Sunrise, FL (34 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4Sterling Metallic 2026 GMC Sierra 1500 AT4

    $69,990

    $3.2K

    MSRP $78,988

    Est. $1,277/mo

    Ed Morse Sawgrass Auto Mall

    4.3
    Check Availability
    Sunrise, FL (34 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $67,791

    $299

    MSRP $76,520

    Est. $1,237/mo

    Sheehan Buick GMC

    4.7
    Check Availability
    Lighthouse Point, FL (44 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $67,996

    MSRP $74,630

    Est. $1,240/mo

    Sheehan Buick GMC

    4.7
    Check Availability
    Lighthouse Point, FL (44 mi)
    Quick view
  • Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4Summit White 2026 GMC Sierra 1500 AT4

    $67,640

    MSRP $74,255

    Est. $1,234/mo

    Sheehan Buick GMC

    4.7
    Check Availability
    Lighthouse Point, FL (44 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 1500 AT4

    $71,335

    Est. $1,301/mo

    Coral Springs Buick GMC

    4.8
    Check Availability
    Coral Springs, FL (40 mi)
    Quick view

About the 2026 GMC Sierra 1500 AT4

Basics

AT4 shown.

Seating
5
Door count
4
Drivetrain
Four Wheel Drive
Combined MPG
23
Transmission
10-Speed A/T
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
Side view of the 2026 GMC Sierra 1500 AT4
FAQs

How much does the 2026 GMC Sierra 1500 AT4 cost?

The 2026 GMC Sierra 1500 AT4 price depends on optional features. Prices typically start at $67,000.

What is the MPG of the 2026 GMC Sierra 1500 AT4?

The 2026 GMC Sierra 1500 AT4 offers up to 21 MPG in city driving and 24 MPG on the highway for a combined rating of 23 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 AT4?

The 2026 GMC Sierra 1500 AT4 compares to and/or competes against the following vehicles:


Is the 2026 GMC Sierra 1500 AT4 reliable?

The 2026 GMC Sierra 1500 has an average reliability rating of 4.4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.

Ratings (5 reviews)

80% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
4.4
Value
3.4
Exterior
4.4
Reliability
4.4
Trims

AT4 (2 styles)

Style
4WD Crew Cab 147" AT4 4WD Crew Cab 157" AT4
Inventory price
Starting at $67,000 Starting at $67,500
Combined MPG
23 23
Engine
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 AT4 by city

GMC Sierra 1500 trims