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  • Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4

    $78,153

    Est. $1,422/mo

    Bob Ross Buick GMC

    4.6
    Check Availability
    Dayton, OH (8 mi)

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  • 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

    $61,988

    6,293 mi.
    Est. $1,128/mo

    Jake Sweeney Chrysler Jeep Dodge

    4.2
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    Cincinnati, OH (23 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 1500 AT4

    $66,896

    $3.2K
    Est. $1,217/mo

    Bush Auto Place

    4.6
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    Wilmington, OH (24 mi)
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  • 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

    $66,551

    $10K
    Est. $1,211/mo

    Reichard Buick Inc

    3.6
    Check Availability
    Dayton, OH (15 mi)
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  • 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

    $61,488

    11,308 mi.
    Est. $1,119/mo

    Jake Sweeney Chevrolet

    4.2
    Check Availability
    Cincinnati, OH (23 mi)
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  • 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

    $66,764

    $3.2K
    Est. $1,215/mo

    Bush Auto Place

    4.6
    Check Availability
    Wilmington, OH (24 mi)
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  • 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

    $64,624

    $2.2K

    MSRP $75,144

    Est. $1,176/mo

    Kerry Buick GMC

    4.7
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    Cincinnati, OH (23 mi)
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  • 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

    $68,000

    MSRP $76,685

    Est. $1,238/mo

    Joseph Buick GMC Trucks

    4.6
    Check Availability
    Cincinnati, OH (30 mi)
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  • 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

    $63,500

    $1.2K

    MSRP $75,440

    Est. $1,156/mo

    Joseph Buick GMC Trucks

    4.6
    Check Availability
    Cincinnati, OH (30 mi)
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  • 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

    $64,977

    $10K
    Est. $1,183/mo

    Reichard Buick Inc

    3.6
    Check Availability
    Dayton, OH (15 mi)
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  • 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

    $69,150

    $4.7K

    MSRP $74,400

    Est. $1,259/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (8 mi)
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  • 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

    $69,045

    $7.2K

    MSRP $76,295

    Est. $1,257/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (8 mi)
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  • 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

    $68,550

    $6.7K

    MSRP $75,800

    Est. $1,248/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (8 mi)
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  • 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

    $64,824

    $6.7K

    MSRP $76,295

    Est. $1,180/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (8 mi)
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  • 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

    $65,480

    MSRP $73,730

    Est. $1,192/mo

    Joseph Buick GMC Trucks

    4.6
    Check Availability
    Cincinnati, OH (30 mi)
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  • 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

    $69,150

    $4.7K

    MSRP $74,400

    Est. $1,259/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (8 mi)
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  • 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

    $89,986

    $5.2K

    MSRP $95,236

    Est. $1,638/mo

    McCluskey Buick GMC

    Check Availability
    Cincinnati, OH (18 mi)
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  • 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

    $89,491

    $5.2K

    MSRP $94,741

    Est. $1,629/mo

    McCluskey Buick GMC

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    Cincinnati, OH (18 mi)
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  • 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

    $71,750

    MSRP $73,500

    Est. $1,306/mo

    McCluskey Buick GMC

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    Cincinnati, OH (18 mi)
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  • 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

    $71,255

    MSRP $73,005

    Est. $1,297/mo

    McCluskey Buick GMC

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    Cincinnati, OH (18 mi)
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  • 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

    $66,152

    $3.2K
    Est. $1,204/mo

    Bush Auto Place

    4.6
    Check Availability
    Wilmington, OH (24 mi)
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  • 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

    $65,716

    $3.2K
    Est. $1,196/mo

    Bush Auto Place

    4.6
    Check Availability
    Wilmington, OH (24 mi)
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  • 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

    $73,550

    MSRP $75,800

    Est. $1,339/mo

    Larkin Cobb Chevrolet Buick GMC

    5.0
    Check Availability
    Eaton, OH (26 mi)
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  • 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

    $64,649

    MSRP $73,905

    Est. $1,177/mo

    Jake Sweeney Buick GMC

    4.7
    Check Availability
    Lebanon, OH (8 mi)
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  • 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

    $61,301

    Est. $1,116/mo

    Laura Buick GMC

    4.5
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    $631 delivery from Collinsville, IL (316 mi)
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  • 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

    $63,662

    $2.2K

    MSRP $72,330

    Est. $1,159/mo

    Woody Buick GMC Naperville

    4.9
    Check Availability
    $299 delivery from Naperville, IL (259 mi)
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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)
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2026 GMC Sierra 1500 AT4 by city

GMC Sierra 1500 trims