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 SLT

Vehicle Details

checklist

Overview

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Stock Number

G264265

Stock Type

New

Year

2026

Make
GMC
Model
Sierra 2500
Model Code

TK20743

Cab Type

Crew

Vehicle Trim

SLT

Body Type
Pickup
VIN

1GT4UNEY1TF190782

Brake Type

Hydraulic

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Dimensions

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Dimensions

Class

3

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Drivetrain

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Drivetrain

4WD

Transmission

Transmission Type

Automatic

manufacturing

Engine

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Engine Description

6.6L Duramax Turbo-Diesel V8 engine

Engine Cylinder Count

8

Engine Model

L5P

Engine Size (L)

6.6

Horsepower

470

Fuel Type

Diesel

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Seating

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Seat Dimensions

Seating Capacity

6

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Colors

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Exterior Color

Gray

Interior Color

Dark Walnut/Slate, Perforated Leather-appointed front outboard seating positions

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Vehicle Options

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  • Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
  • Wipers, front rain-sensing
  • Floor covering, color-keyed carpeting
  • Bed Step, Black integrated on forward portion of bed on driver and passenger side
  • SiriusXM Trial Subscription
  • Wireless phone projection for Apple CarPlay and Android Auto
  • Air vents, rear
  • Bumper, front chrome lower
  • Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Glass, deep-tinted
  • Steering wheel, heated
  • 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.)
  • USB Ports, 2, Charge/Data ports located on instrument panel
  • Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
  • Tire, spare LT275/70R18 all-terrain, blackwall
  • Remote vehicle starter system
  • Tires, LT275/70R18E all-terrain, blackwall (STD)
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Floor mats, carpeted rear (Deleted when LPO floor liners are ordered or (BKF) Premium Floor Liners are ordered.)
  • Seat Belt Adjustable Guide Loops, front row only
  • LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
  • Rear Seat Reminder
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • USB ports, (2) charge-only, rear
  • LED Signature DRL's
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • Bumper, rear chrome with bumper CornerSteps
  • Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Grille (Chrome surround with Chrome insert bars.)
  • Seat trim, Perforated Leather-appointed front outboard seating positions
  • Window, power front, passenger express up/down
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Air filter, heavy-duty
  • Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Cooling, external engine oil cooler
  • Theft-deterrent system, unauthorized entry
  • 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)
  • 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.)
  • OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select 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 select 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.)
  • Daytime Running Lamps, LED signature lighting
  • Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lighting
  • Brake lining wear indicator
  • Keyless Open and Start includes remote keyless entry
  • Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
  • Door locks, power
  • Seat adjuster, driver 10-way power including lumbar
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • 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) Sierra HD Pro Safety.)
  • 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
  • Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
  • Push Button Start
  • Auto-locking rear differential
  • Steering wheel audio controls
  • Windows, power front, drivers express up/down
  • Air conditioning, dual-zone automatic climate control
  • Bluetooth for phone connectivity to vehicle infotainment system
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Compass, located in instrument cluster
  • GMC Premium information Display- 13.4" diagonal Multicolor touch screen
  • Moldings, beltline, chrome
  • Seat adjuster, passenger 10-way power including lumbar
  • Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
  • Mirror caps, chrome
  • Mirror, inside rearview auto-dimming
  • Wheelhouse liners, rear
  • Cooling, auxiliary external transmission oil cooler
  • Air filtration monitoring
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Transfer case, two-speed active, electronic Autotrac with push button control (Requires 4WD models.)
  • Seat, Up-level Rear with Storage Package 60/40 folding bench, 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)
  • Windows, power rear, express down
  • Pickup bed includes bed assist step
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
  • Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Steering wheel, wrapped
  • Tailgate and bed rail protection caps, top
  • Steering column, manual Tilt-Wheel and telescoping
  • Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
  • Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
  • Defogger, rear-window electric
  • 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 (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
  • CornerStep, rear bumper
  • Exterior Temperature Display, located in radio display
  • OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • Floor mats, carpeted front (Deleted when LPO floor liners are ordered or (BKF) Premium Floor Liners are ordered.)
  • Rear Seat Belt Indicator
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • Fog lamps, LED
  • Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Four wheel drive
  • Door handles, chrome
  • Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents (STD)
  • Seating, heated driver and front outboard passenger
  • Trailer brake controller, integrated
  • Sierra HD Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UFL) Lane Departure Warning, (T8Z) Buckle to Drive and (UHY) Automatic Emergency Braking
  • Center Console, floor-mounted
  • Bed View Camera, camera in the CHMSL to show a view of the cargo bed
  • Tailgate, GMC MultiPro Tailgate
  • Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible
  • SLT Preferred Equipment Group
  • Bose Sound System, premium 7-speaker system with Richbass woofer
  • Engine block heater
  • LPO, All-weather floor liner, 1st and 2nd rows
  • Trailer Side Blind Zone Alert
  • Adaptive Cruise Control
  • Exhaust brake
  • Seats, front bucket
  • High idle switch
  • Rear Cross Traffic Alert
  • Universal Home Remote
  • Sierra HD Pro Safety Plus Package
  • Winter Grille Cover
  • Assist steps, chromed tubular, 6" rectangular cab length
  • Trailer Camera Provisions and trailer viewing software
  • Suspension, Off-Road
  • SLT Convenience Package
  • Option/package discount
  • SLT Premium Package
  • Safety Alert Seat
  • Battery, heavy-duty dual 730 cold-cranking amps/70 Amp-hr
  • HD Surround Vision
  • Dark Walnut/Slate, Perforated Leather-appointed front outboard seating positions
  • License plate kit, front, Incandescent lighting
  • X31 Off-Road Package
  • Seats, ventilated driver and front passenger
  • Front and Rear Park Assist, ultrasonic
  • GVWR, 11,350 lbs. (5148 kg)
  • Bedliner, Spray-on, Pickup bedliner
  • Alternator, 220 amp
  • Emissions, Federal requirements
  • Hill Descent Control
  • Sterling Metallic
  • Lamps, Smoked Amber roof marker, (LED)
  • Transmission, 10-speed automatic
  • Skid Plates
  • Seats, heated second row outboard seats
  • Window, power, rear sliding with rear defogger
  • Wireless Charging
  • Capped Fuel Fill
  • Rear axle, 3.42 ratio
  • SLT Preferred Package
  • SLT PREMIUM PACKAGE DISCOUNT DISCOUNT

Bruner Early GMC ci2 Test Site

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Listing Notes
2026 GMC Sierra 2500HD SLT Heavy-Duty Luxury in Brownwood, TX
Dominate the road and the ranch with the 2026 GMC Sierra 2500HD SLT, now available at Bruner Auto Group. Finished in a professional Sterling Metallic, this heavy-duty powerhouse is engineered for the serious drivers of Brown County. Whether you are hauling heavy equipment through Early, towing a large fifth-wheel to Lake Brownwood, or managing a major operation in Comanche, this Sierra 2500HD provides the perfect balance of Professional Grade strength and premium comfort.

Unmatched Duramax Diesel Performance
This 2500HD is powered by the legendary Duramax 6.6L V8 Turbodiesel engine, delivering relentless torque and towing authority. Paired with the world-renowned Allison 10-speed automatic transmission, it offers a towing experience that is both smooth and commanding.

4WD Authority: Features a 2-speed active transfer case for seamless transitions when the Central Texas terrain gets challenging.

Gooseneck/5th Wheel Prep Package: Factory-installed and ready to work the moment you leave our lot.

X31 Off-Road & Protection Package: Equipped with off-road suspension and Hill Descent Control to protect your investment in rugged conditions.

Exhaust Brake & High Idle Switch: Superior control for descending steep grades and managing auxiliary power needs.

SLT Premium Luxury & Technology
The Dark Walnut/Slate Leather interior creates a quiet, upscale sanctuary that doubles as a high-tech mobile office.

Heated & Ventilated Front Seats: Stay perfectly comfortable through the peak of a Texas summer and chilly winter starts.

Heated Steering Wheel & 2nd Row Outboard Seats: Premium comfort for the entire crew or family.

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

Bose Premium 7-Speaker Sound System: Crystal-clear audio to soundtrack your long hauls across the Heart of Texas.

Power Sunroof: Open up the cabin to the expansive Texas sky.

Professional-Grade Utility & Styling
The Sterling Metallic exterior is accented by chrome detailing and the Texas SLT Premium Package, giving this truck a commanding presence in Brownwood.

GMC MultiPro Tailgate: Featuring six unique functions to improve loading, unloading, and bed access.

20 Bright Face Wheels: Bold styling meets heavy-duty durability.

Spray-on Pickup Bedliner: Maximum protection for your bed against scratches, dents, and the elements.

6 Rectangular Chromed Tubular Assist Steps: Providing easy access to the cabin and the front of the truck bed.

Advanced Safety & Trailering Confidence
Safety is a top priority when youre hauling heavy. This truck features the Sierra HD Pro Safety Plus Package:

HD Surround Vision with Bed View: Multiple camera angles make solo-hitching and parking effortless.

Trailer Side Blind Zone Alert: Extra awareness when navigating highway traffic with a trailer in tow.

Adaptive Cruise Control: Automatically maintains a safe following distance, even while trailering.

Ultrasonic Front and Rear Park Assist: Simplifies maneuvering in tight spaces around town.

Why Buy from Bruner Auto Group?
At Bruner Auto Group, we have been a cornerstone of the Brownwood, TX community for generations. We understand that a 2500HD isn't just a vehicleit's a critical tool for your business and lifestyle. Our team is dedicated to providing a transparent, hometown buying experience and the expert heavy-duty service you need to keep your GMC on the road for years to come.

Visit Bruner Auto Group today to test drive the 2026 GMC Sierra 2500HD SLT. Put the power of a Duramax to work for you!
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