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

G264224

Stock Type

New

Year

2026

Make
GMC
Model
Sierra 2500
Model Code

TK20743

Cab Type

Crew

Vehicle Trim

SLT

Body Type
Pickup
VIN

1GT4UNEYXTF177724

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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  • 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
  • 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
  • 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
  • SLT Preferred Equipment Group
  • Bose Sound System, premium 7-speaker system with Richbass woofer
  • 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
  • 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 - Sterling Metallic Power in Brownwood, TX
Command the roads of Central Texas with the 2026 GMC Sierra 2500HD SLT, now available at Bruner Auto Group in Brownwood. This Professional Grade heavy-duty pickup is finished in the sophisticated Sterling Metallic and is engineered to handle the most demanding tasks with ease. Whether youre hauling heavy equipment to Early, managing a ranch in Coleman, or towing a large trailer to Lake Brownwood, this Sierra 2500HD SLT is built to deliver unmatched capability and refined luxury.

Unrivaled Duramax Diesel Performance
Under the hood, this Sierra 2500HD is powered by the legendary Duramax 6.6L V8 Turbodiesel engine, producing the massive torque and horsepower required for serious hauling. Paired with a smooth-shifting 10-Speed Automatic Transmission and a robust 4WD system, youll have total confidence whether youre on the highway or navigating off-road terrain. This truck is ready for the unpredictable conditions of the Texas Hill Country.

SLT Luxury Meets Rugged Utility
The SLT trim strikes the perfect balance between high-end comfort and work-ready features. Inside the spacious 4D Crew Cab, youll find a refined Dark Walnut/Slate Leather interior, providing a sanctuary of premium materials and advanced technology.

Key Equipment & Premium Features:

GMC MultiPro Tailgate: Six unique functions to improve loading, unloading, and accessing the cargo bed.

SLT Premium Package: Includes the best of GMC's luxury and functional upgrades, such as heated and ventilated front outboard seats and heated second-row seats.

Advanced Technology: Stay connected with the Premium GMC Infotainment System, featuring a large touchscreen with Google built-in, Wireless Apple CarPlay, and Wireless Android Auto.

Trailering Confidence: Equipped with the Gooseneck/5th Wheel Prep Package, Hitch Guidance with Hitch View, and an in-vehicle trailering app.

X31 Off-Road Package: Ready for the ranch with off-road suspension, Hill Descent Control, and skid plates.

Premium Sound: Enjoy your favorite music with the Bose Premium 7-Speaker Sound System.

Safety First: GMC Pro Safety Plus Package includes Forward Collision Alert, Lane Departure Warning, and HD Surround Vision.

Built for the Texas Lifestyle
At Bruner Auto Group, we understand what it means to be Texas Tough. This Texas SLT Premium Package truck features the durability of a Spray-on Pickup Bedliner with the GMC Logo and LED Cargo Area Lighting, ensuring your truck stays protected and functional for years to come. Whether you're a business owner in Bangs or a outdoor enthusiast in Comanche, this Sierra is the partner you need.

Why Shop Bruner Auto Group in Brownwood?
Located at 224 Early Blvd, weve served the Brownwood and Early communities for generations. We pride ourselves on a transparent, hometown buying experience with competitive financing and top-dollar trade-in values.

vAuto Vehicle Specifications (Copy/Paste)
Year/Make/Model: 2026 GMC Sierra 2500HD SLT

VIN: 1GT4UNEYXTF177724

Stock #: G264224

Exterior Color: Sterling Metallic

Interior Color: Dark Walnut/Slate Leather

Engine: Duramax 6.6L V8 Turbodiesel

Transmission: 10-Speed Automatic

Drivetrain: 4WD

Body Style: 4D Crew Cab

Condition: New - Retail

Experience the Professional Grade difference today. Visit Bruner Auto Group in Brownwood to see this Sterling Metallic Sierra 2500HD SLT in person. Let us help you secure your next heavy-duty GMC and show you why we are the top choice for trucks in Central Texas.
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