2026 GMC Sierra 1500 AT4X

Specifications, live market data, colors, and factory features.

1,874 for sale right now

$55,887 – $99,383

View Listings

Specifications

305

Horsepower

495

lb-ft Torque

MPG Combined

Seats

$79k

Base MSRP

Performance

Engine: 6.2L 6.2L Ecotec3 V8 L87
Horsepower: 305 hp
Torque: 495 lb-ft
Transmission: 10-Speed Automatic
Drivetrain: 4WD

Fuel & Efficiency

Fuel: Gasoline
MPG City: 19 mpg
MPG Highway: 20 mpg
MPG Combined: 19 mpg
Fuel Tank: 24 gal

Dimensions

Length: 232.9″
Width: 81.2″
Height: 78.7″
Wheelbase: 148″
Curb Weight: 5,890 lbs

Body & Practicality

Body Style: Truck
Doors: 4
Seating: 5
Base MSRP: $79,400

Colors

Factory colors on 2026 GMC Sierra 1500 AT4Xs for sale now.

Exterior

Onyx Black(black)39
Summit White(white)36
Sterling Metallic(silver)21
Coastal Dune(brown)18
Dune(brown)11
Sterling(silver)8
White4
Black3
Gray3
Volcanic Red Tintcoat(red)3

Interior

Obsidian Rush(black)149
Obsidian Rush Full Grain Leather Front Seat Trim(black)2
Obsidian Rush Full Grain(black)1
Obsidian Rush, Full Grain Leather Front Seat Trim(blue)1

Live Market Data

Computed from active 2026 GMC Sierra 1500 AT4X listings nationwide, updated continuously.

For sale now1,874

Median price$76,486

Average price$76,935

Price range$55,887 – $99,383

Median vs. MSRP−$2,914

Avg. days on market76

Avg. mileage1,387 mi

New / Used425 / 75

Price Distribution

Price vs. Mileage

Latest AT4X Listings

The newest 2026 GMC Sierra 1500 AT4Xs on the market.

View all 1,874 →

Used 2026 GMC Sierra 1500

AT4X

$69,593

9,944 mi

Est. $1,005/mo*

2 days at this dealer

WhiteBlack

Milton Ruben Superstore

Augusta, GA

New 2026 GMC Sierra 1500

AT4X

$81,019

MSRP: $82,8902.3% off

1 mi

Est. $1,168/mo*

2 days at this dealer

BlackBlack

Crain Buick GMC of Springdale

Springdale, AR

New 2026 GMC Sierra 1500

AT4X

$81,419

MSRP: $84,2903.4% off

1 mi

Est. $1,174/mo*

2 days at this dealer

WhiteBlack

Crain Buick GMC of Springdale

Springdale, AR

New 2026 GMC Sierra 1500

AT4X

$80,575

MSRP: $83,5853.6% off

317 mi

Est. $1,162/mo*

2 days at this dealer

Black

#1 Cochran Buick GMC of Monroeville

Monroeville, PA

Used 2026 GMC Sierra 1500

AT4X

$66,673

20,956 mi

Est. $964/mo*

0 days at this dealer

SilverObsidian Rush

Exclusive Auto Wholesale

Pelham, AL

Used 2026 GMC Sierra 1500

AT4X

$69,347

4,724 mi

Est. $1,002/mo*

5 days at this dealer

Onyx BlackObsidian Rush

Walser Buick GMC Bloomington

Bloomington, MN

Used 2026 GMC Sierra 1500

AT4X

$69,190

4,524 mi

Est. $999/mo*

5 days at this dealer

RedBlack

Snell Motors

Mankato, MN

New 2026 GMC Sierra 1500

AT4X

$82,980

MSRP: $84,9802.4% off

10 mi

Est. $1,196/mo*

5 days at this dealer

BlackBlue

Ed Martin Buick GMC

Carmel, IN

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The median 2026 GMC Sierra 1500 AT4X lists for $76,486 today.

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Factory Features

Standard equipment from the window sticker, reviewed for accuracy.

Comfort & Convenience

Keyless Open and Start (push-button)
Remote vehicle start / cabin preconditioning
Proximity key multi-function remote with panic alarm and vehicle memory
Universal Home Remote (Homelink 3-channel)
Wireless charging pad (front of console)
Multiple USB data/charge ports (console and rear of console)
120-volt / 115V power outlets (front instrument panel and cargo area)
Wireless Apple CarPlay and Wireless Android Auto
Bluetooth hands-free phone and audio streaming
Wi-Fi hotspot capable (OnStar)
myGMC mobile app connectivity (remote start, vehicle status; plan/terms apply)
OnStar services capable (Automatic Crash Response, remote commands, etc.; plan required)
Navigation with real-time traffic and voice control (Google built-in)
Steering-wheel mounted audio, cruise, phone, and voice controls

Driver Assistance

Adaptive Cruise Control (semi-automatic stop-and-go)
Lane Keep Assist with Lane Departure Warning
IntelliBeam auto high beams
HD Surround Vision multi-camera system
Hitch Guidance and Hitch View
Trailer Side Blind Zone Alert
Integrated trailer brake controller with DIC gain/output display
In-vehicle Trailering App
Hill Descent Control

Entertainment

13.4-inch diagonal GMC Premium Infotainment System with Google built-in (multi-touch)
Google Assistant, Google Maps, and Google Play apps (data/plan requirements may apply)
Bose Premium Series audio system (approximately 12 speakers including subwoofer)
AM/FM radio with SiriusXM with 360L trial subscription capability
Bluetooth streaming audio
MultiPro Audio System by Kicker (independent weatherproof tailgate audio)
Speed-sensitive volume control and Radio Data System

Exterior

Crew Cab, short bed (5.8 ft) configuration only
AEV stamped-steel high-approach front bumper with front winch capability
Stamped boron steel front-approach AEV skid plate
Underbody skid plates (front underbody / oil pan, differential, transfer case protection)
Body-color rear bumper with CornerStep integrated steps
Gloss black header grille with dark nickel insert bars and gloss black accents
Black chrome / AT4X-specific exterior accents; black window trim, mirror caps, and fender lip moldings
Body-color door handles
Active grille shutters
LED reflector headlamps with signature lighting, LED turn signals, and fade-on/fade-off animation
IntelliBeam auto high-beam assist
LED daytime running lamps
LED fog lamps
LED signature taillamps with stop/turn/reverse and fade-on/fade-off animation
Perimeter lighting and puddle lamps
Cargo bed LED lighting / cab-mounted cargo area lamps
Hitch area lighting
18-inch painted aluminum wheels with dark painted pockets
LT275/70R18 Goodyear Wrangler Territory MT all-terrain/mud-terrain tires (~33-inch)
Full-size spare tire on matching aluminum wheel (underbody mount with lock)
High-strength steel pickup bed with GMC-logo spray-on bedliner
GMC MultiPro six-function tailgate with EZ Lift assist, power lock/release, and integrated step
MultiPro Audio System by Kicker (weatherproof tailgate speakers/amp)
12 cargo tie-down anchors
Rear wheelhouse liners
Tailgate and bed rail protection caps
Power sliding rear window with rear defogger
Deep-tinted glass
Rainsense automatic variable intermittent wipers
Power sunroof (tilt/slide, express open/close)
Heated power-folding outside mirrors with driver-side auto-dimming, memory, and black caps
Dual polished aluminum exhaust tips (active dual exhaust on applicable builds)
About 11.5 in. front ground clearance with factory lift

Interior

Obsidian Rush full-grain leather front seating with red/white double-needle stitching
16-way power heated and ventilated front bucket seats with lumbar and massage (driver and passenger)
Driver seat memory (2 presets) with easy-entry
Heated rear outboard seats
60/40 split-folding rear bench with under-seat storage, seatback storage, and center armrest with cupholders
5-passenger seating
Leather-wrapped heated steering wheel
Power tilt and telescoping steering column with memory
12.3-inch customizable digital Driver Information Center
Multi-color 15-inch diagonal Head-Up Display (includes off-road inclinometer)
Rear Camera Mirror (camera-based auto-dimming rearview mirror)
Dual-zone automatic climate control with rear seat air vents and air filtration
Premium floor mats/liners (rubber/vinyl with carpet inserts where equipped)
Front center console with armrest and storage
Carpeted flooring
Dual illuminating vanity mirrors
Front and rear reading lights / assist handles
Power windows with express-up/down (driver) and lockout; one-touch for four windows
Instrumentation: oil pressure, transmission temperature, powertrain hour meter, compass, external temperature, trip computer

Mechanical & Performance

Duramax 3.0L turbo-diesel I6 (305 hp, 495 lb-ft) — standard engine
10-speed automatic transmission with Electronic Precision Shift and paddle shifters
4WD only (part-time with on-demand setting)
Two-speed Autotrac electronic transfer case (2HI / Auto / 4HI / 4LO / Neutral)
Driver-selectable front electronic locking differential
Driver-selectable rear electronic locking differential
Off-road suspension with 2-inch factory lift
Multimatic DSSV spool-valve dampers (front and rear)
Independent front suspension with upper/lower control arms and coil springs
Solid live axle rear suspension with multi-leaf springs
Front stabilizer bar
3.23 rear axle ratio
Hill Descent Control
Hill holder control
Drive mode selector / Tow-Haul mode
Auto stop/start
Heavy-duty air filter
Heavy-duty battery (approx. 730–850 CCA, maintenance-free) with battery saver
Alternator (standard rating; higher-output optional)
Electric power steering with variable assist
4-wheel antilock ventilated disc brakes with Electronic Brake Force Distribution and brake assist
Electronic parking brake (auto-off)
StabiliTrak electronic stability control with traction control and roll stability control
Trailer stability control
Integrated trailer brake controller
Trailering package: hitch platform with 2-inch receiver, 4-pin and 7-pin connectors
In-vehicle Trailering App (checklist, light sequencing, hitch guidance, diagnostics)
24-gallon fuel tank
Capless fuel fill
Fully boxed high-strength steel frame with hydroformed front section

Safety & Security

GMC Pro Safety suite
6 airbags: dual-stage front, front seat-mounted side-impact, and head-curtain airbags for outboard positions
Passenger Sensing System (front outboard passenger airbag)
Automatic Emergency Braking
Front Pedestrian Braking
Forward Collision Alert
Following Distance Indicator
Lane Keep Assist with Lane Departure Warning
Safety Alert Seat (haptic driver seat alerts)
Buckle to Drive
Rear Seat Reminder
Rear Seat Belt Indicator
Front and rear park assist
Rear Cross Traffic Braking / Cross Traffic Alert
Rear Pedestrian Alert
Blind Zone Steering Assist / blind spot monitoring with Trailer Side Blind Zone Alert
HD Surround Vision (360° camera system) with hitch view and guidelines
HD Rear Vision Camera
Bed View Camera
Tire Pressure Monitoring System with Tire Fill Alert (trailer-ready)
LATCH child seat anchors and child security rear door locks
3-point seat belts with pretensioners and seat-belt warning
Theft-deterrent system with vehicle immobilizer and unauthorized-entry alarm
Power door locks with auto-locking / anti-lockout
Programmable safety key / steering column lock (electrical)

Warranty

Basic limited warranty: 3 years / 36,000 miles
Powertrain limited warranty: 5 years / 60,000 miles
Duramax diesel engine/powertrain coverage: 5 years / 100,000 miles (as applicable)
Corrosion warranty: 3 years / 36,000 miles; rust-through perforation: 6 years / 100,000 miles
Roadside Assistance: 5 years / 60,000 miles
Courtesy Transportation: 5 years / 100,000 miles (program terms apply)
First scheduled maintenance visit: included (typically first 12 months / 12,000 miles per GMC program)