Key Features

An icon representing Body Type
Body Type Pickup
An icon representing Fuel Type
Fuel Type
An icon representing Engine Description
Engine Description
An icon representing Drivetrain
Drivetrain 4WD
An icon representing Cab Type
Cab Type Crew Cab
An icon representing Trim
Trim AT4X

Vehicle Details

checklist

Overview

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Stock Number

G264287

Stock Type

New

Year

2026

Make
GMC
Model
Sierra 1500
Model Code

TK10543

Cab Type

Crew

Vehicle Trim

AT4X

Body Type
Pickup
VIN

3GTUUFE82TG233000

Brake Type

Hydraulic

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Dimensions

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Dimensions

Class

2

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Drivetrain

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Drivetrain

4WD

Transmission

Transmission Type

Automatic

manufacturing

Engine

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Engine Description

3.0L Duramax<sup>&reg;</sup> Turbo Diesel engine

Engine Cylinder Count

6

Engine Model

LZ0

Engine Size (L)

3.0

Horsepower

305

Fuel Type

Diesel

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Seating

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Seat Dimensions

Seating Capacity

5

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Colors

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Exterior Color

White

Interior Color

Obsidian Rush, Full grain leather front seat trim

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Vehicle Options

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  • Floor covering, color-keyed carpeting
  • GMC Premium information Display- 13.4" diagonal Multicolor touch screen
  • GMC Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UHX) Lane Keep Assist with Lane Departure Warning, and (UHY) Automatic Emergency Braking (Includes (T8Z) Buckle to Drive and (HS1) Safety Alert Seat.)
  • Sunroof, power
  • GVWR, 7300 lbs. (3311 kg) (Requires (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.) (STD)
  • SiriusXM Trial Subscription
  • Air vents, rear
  • Glass, deep-tinted
  • Wireless, Apple CarPlay / Wireless Android Auto
  • Steering wheel, heated
  • In-Vehicle Trailering App System, includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
  • Steering column, power rake and telescoping
  • Adaptive Cruise Control
  • Alternator, 220 amps (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
  • Automatic Stop/Start
  • Wipers, front rain-sensing
  • Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
  • Steering column lock, electrical
  • Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
  • Window, power, rear sliding with rear defogger
  • Differential, driver-selectable full-locking rear, e-locking
  • Cargo tie downs (12), fixed
  • Engine, Duramax 3.0L Turbo-Diesel I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.) (STD)
  • Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
  • Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
  • Transfer case, two-speed, electronic Autotrac with push button control (4WD models only) (Includes Terrain mode.)
  • Pickup bed
  • Remote vehicle starter system
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seat Belt Adjustable Guide Loops, front row only
  • Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) Gloss Black painted full-size, spare Aluminum
  • LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
  • Bedliner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Crew Cab models are available with Ship Thru codes (VCO), (VDT), (VYC) or (VYS).)
  • Steering wheel, leather-wrapped
  • Seats, ventilated driver and front passenger
  • CornerStep, rear bumper (Not included with (ULV) AT4X AEV Edition.)
  • Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
  • Lighting, perimeter
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Steering wheel audio controls
  • Trailer Tire Pressure Monitor Sensors includes set of 4 sensors. Sensor functionality requires (UET) In-Vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a center stack display. Includes front camera washer.
  • Window, power front, passenger express up/down
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • LPO, MultiPro Tailgate Audio System by Kicker (dealer-installed)
  • Battery, heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
  • Multicolor 15" Diagonal Head-Up Display
  • Air filter, heavy-duty
  • Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
  • Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Hill Descent Control
  • Skid Plates
  • Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • Theft-deterrent system, unauthorized entry
  • Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
  • Audio System, 13.4" diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance, includes color touch-screen, multi-touch display, AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD)
  • Rear Seat Reminder
  • SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy, visit siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
  • Daytime Running Lamps, LED signature lighting
  • Brake lining wear indicator
  • Trailer Side Blind Zone Alert
  • USB Ports, 2, Charge/Data ports located inside center console
  • Mirror caps, high gloss Black
  • Keyless Open and Start includes remote keyless entry
  • Rear Pedestrian Alert
  • Hitch View with image adjustment, Pan/Zoom/Tilt
  • Door locks, power
  • Bumper, rear body-color with corner steps (Not available with (ULV) AT4X AEV Edition. Bumper color is High Gloss Black on AT4X.)
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • Tire, spare LT275/70R18 blackwall Goodyear Wrangler Territory MT
  • Seat adjuster, passenger 16-way power including lumbar and massage
  • Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
  • Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Seats, front bucket with center console (STD)
  • USB ports, (2) charge-only, rear
  • Electronic Precision Shift and steering column paddle shifters
  • Rear axle, 3.23 ratio
  • Push Button Start
  • Steering, Electric Power Steering (EPS) assist, rack-and-pinion
  • Seat adjuster, driver 16-way power including lumbar and massage
  • Windows, power front, drivers express up/down
  • Air conditioning, dual-zone automatic climate control
  • Premium Floor Liners with removable carpet insert, rear (Deleted with (ULV) AT4X AEV Edition.)
  • Wireless Charging
  • Seat trim, Full grain leather front
  • Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
  • Compass, located in instrument cluster
  • Differential, driver-selectable full-locking front, e-locking
  • Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen (Includes Trailer View Camera Provisions and Trailer Assist Guidelines.)
  • USB Ports, 2 (first row) located on console
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features
  • Universal Home Remote
  • Wheelhouse liners, rear
  • Exhaust, aluminized stainless-steel muffler and tailpipe
  • Exhaust, dual system (No exposed chrome tips in bumper. Only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
  • Capless Fuel Fill
  • Frame, fully-boxed, hydroformed front section
  • OnStar services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Tires, LT275/70R18 blackwall Goodyear Wrangler Territory MT
  • Bluetooth for phone, connectivity to vehicle infotainment system
  • Windows, power rear, express down
  • Trailer Camera Provisions and trailer viewing software
  • Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) Painted aluminum with dark painted pockets (STD)
  • Front and Rear Park Assist, ultrasonic
  • Tailgate and bed rail protection caps, top
  • Premium Floor Liners with removable carpet insert, front (Deleted with (ULV) AT4X AEV Edition.)
  • Defogger, rear-window electric
  • Rear Cross Traffic Braking
  • Safety Alert Seat (Included and only available with (PDI) GMC Pro Safety.)
  • Front Bumper, AEV Stamped-steel high approach Front Bumper with heavy duty cast recovery points
  • Door handles, body-color (Gloss Black with (ULV) AT4X AEV Edition.)
  • Exterior Temperature Display, located in radio display
  • Rear Camera Mirror, inside rearview auto-dimming with full camera display
  • Rear Seat Belt Indicator
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
  • Fog lamps, LED
  • OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (Requires (UE1) OnStar. OnStar Basics includes remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
  • Suspension, Off Road with 2" factory installed lift and Multimatic DSSV dampers (Not available with 22" LPO wheels and tires.)
  • Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) GMC Pro Safety.)
  • Four wheel drive
  • Hitch Guidance
  • Seats, heated second row outboard seats
  • Bose Premium Series with 12-speaker system with CenterPoint, Richbass woofer and AudioPilot
  • Seating, heated driver and front outboard passenger
  • Trailer brake controller, integrated
  • Grille (Gloss Black header with Dark Nickel grille insert bars with gloss black accents.)
  • Engine block heater
  • Transmission, 10-speed automatic with Electronic Precision shift, electronically controlled
  • LPO, Off-Road High Clearance Steps
  • AT4X Preferred Equipment Group
  • Obsidian Rush, Full grain leather front seat trim
  • Summit White
  • LPO, Rear underseat storage, composite storage bin
  • License plate kit, front
  • Emissions, Federal requirements
  • LPO, Hard Folding Truck Bed Cover by RealTruck Advantage

Bruner Early GMC ci2 Test Site

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Listing Notes
2026 GMC Sierra 1500 AT4X Extreme Off-Road Luxury in Brownwood, TX
Take your Texas adventures to the absolute limit with the 2026 GMC Sierra 1500 AT4X, now available at Bruner Auto Group. Finished in a clean Summit White, the AT4X is the apex of GMCs off-road lineup, engineered for those in Brown County who refuse to compromise between hardcore capability and ultra-premium luxury. Whether youre conquering the rugged ranch trails of Comanche, hauling a boat to Lake Brownwood, or making a statement in Early, this truck is the ultimate Professional Grade machine.

High-Torque Duramax Power & Elite Off-Road Hardware
The AT4X is powered by the legendary 3.0L Duramax Turbo-Diesel I6 engine, delivering a massive 495 lb-ft of torque. Paired with a precision 10-speed automatic transmission, this powertrain provides the low-end grunt needed for technical off-roading and heavy towing.

Multimatic DSSV Spool-Valve Dampers: High-performance shocks that provide incredible control both on the highway and over the roughest Texas terrain.

Front and Rear E-Locking Differentials: A class-exclusive feature that ensures maximum traction when things get vertical.

AVEV Stamped Steel Bumpers: Heavy-duty protection with integrated recovery points and a winch-ready front bumper.

Underbody Skid Plates: Full-length protection for the transfer case, fuel tank, and differential.

Obsidian Rush Luxury Interior
The Obsidian Rush leather interior is a Denali-level sanctuary designed for the dirt. It features full-grain leather seats with technical grain accents and authentic Vanta ash wood trim.

16-Way Power Massaging Front Seats: Heated and ventilated to keep you refreshed during long hauls across Central Texas.

12-Speaker Bose Premium Series: A studio-quality sound system featuring Stainless Steel speaker grilles.

13.4 Diagonal Infotainment Touchscreen: Featuring Google Built-In, wireless Apple CarPlay, and Android Auto.

15 Head-Up Display: Projects vital off-road and driving data directly onto the windshield.

Rugged Styling & MultiPro Utility
The Summit White exterior is accented by gloss black details and high-clearance hardware that commands respect in Brownwood.

GMC MultiPro Tailgate: Six functional positions for easier loading, unloading, and a built-in step.

18 Gloss Black Wheels: Wrapped in aggressive 33-inch Mud-Terrain tires for maximum grip.

Spray-on Bedliner with AT4X Logo: Durable protection for the cargo box against tools, gear, and the elements.

LED Signature Lighting: Features dark-tinted headlamps and C-shape LED daytime running lamps.

ProGrade Safety & Trailering
Confidence is standard, whether you are on the road or off the grid.

Sierra Safety Plus Package: Includes Rear Cross Traffic Braking, Rear Pedestrian Alert, and Trailer Side Blind Zone Alert.

HD Surround Vision with Off-Road Views: Provides multiple camera angles to help you navigate tight trails and avoid obstacles.

Adaptive Cruise Control: Automatically maintains a safe distance on the long highway stretches to Abilene or Fort Worth.

Why Buy from Bruner Auto Group in Brownwood?
At Bruner Auto Group, we have been a proud part of the Brownwood, TX community for generations. We know that an AT4X isn't just a truckit's a statement of capability. Our team is dedicated to providing a transparent, hometown buying experience and the expert off-road service you need to keep your Sierra performing at its peak.

Visit Bruner Auto Group today to test drive the 2026 GMC Sierra 1500 AT4X. See why this is the most capable Sierra ever built!
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