2026 GMC Sierra 3500HD SLT Heavy-Duty Power in Brownwood, TXExperience unmatched towing capability and professional-grade luxury at Bruner Auto Group.… Read More…
2026 GMC Sierra 3500HD SLT Heavy-Duty Power in Brownwood, TX Experience unmatched towing capability and professional-grade luxury at Bruner Auto Group. This 2026 GMC Sierra 3500HD SLT, finished in the stunning Volcanic Red Tintcoat, is built for the heavy-duty demands of Brown County. Whether you are hauling livestock through Early, towing a large fifth-wheel to Lake Brownwood, or managing a job site in Comanche, this Sierra 3500HD is the ultimate Texas workhorse.
Elite Duramax Diesel Performance Equipped with the legendary Duramax 6.6L V8 Turbodiesel engine and the world-class Allison 10-speed automatic transmission, this truck delivers relentless power and smooth shifting under the heaviest loads.
4WD & Dual Rear Wheels (DRW): Maximum stability and traction for the biggest jobs in Central Texas.
Gooseneck/5th Wheel Prep Package: Factory-installed and ready to hitch up on day one.
Exhaust Brake & High Idle Switch: Enhanced control and utility for professional-grade applications.
X31 Off-Road Package: Includes off-road suspension and twin-tube Rancho shocks to handle rugged ranch terrain.
SLT Premium Luxury & Interior The Black Leather interior offers a sophisticated sanctuary, blending high-end comfort with the durability needed for a workday.
Heated & Ventilated Front Seats: Stay comfortable year-round, from the peak of Texas summer to chilly winter mornings.
Heated Steering Wheel & 2nd Row Outboard Seats: Premium comfort for the entire crew.
13.4 Diagonal Infotainment Touchscreen: Featuring Google Built-In, wireless Apple CarPlay, and Android Auto.
Bose Premium 7-Speaker Sound System: High-fidelity audio for those long drives across Texas.
Power Sunroof: Open up the cabin to the big Texas sky.
Work-Ready Utility & Styling The Volcanic Red Tintcoat exterior is accented with chrome and high-end functional features that make a statement in Brownwood.
GMC MultiPro Tailgate: Six unique functions to improve loading, unloading, and bed access, plus the Kicker Audio System for the ultimate job site or tailgate experience.
Spray-on Pickup Bedliner: Durable protection for your truck bed against heavy equipment and the elements.
20 Bright Face Wheels: A bold, commanding stance on the road.
LED Cargo Area Lighting & Smoked Amber Roof Marker Lamps: Superior visibility for early mornings and late nights.
Advanced Safety & Trailering Tech Haul with confidence thanks to GMCs most advanced safety and trailering technology.
HD Surround Vision & Bed View Camera: Multiple camera angles make solo-hitching and parking effortless.
Trailer Side Blind Zone Alert: Keeps you aware of vehicles in your trailer's blind spots.
Adaptive Cruise Control: Automatically maintains a safe following distance, even while trailering.
Sierra HD Pro Safety Plus Package: Includes Forward Collision Alert, Automatic Emergency Braking, and Lane Departure Warning.
Why Choose Bruner Auto Group? At Bruner Auto Group, we have been a trusted part of the Brownwood, TX community for decades. We understand that a 3500HD is more than just a truckits an investment in your livelihood. Our team is committed to a transparent, hometown buying experience and expert service to keep your Sierra on the road for years to come.
Visit Bruner Auto Group today to test drive the 2026 GMC Sierra 3500HD SLT. Put the power of a Duramax to work for you! Read Less
Chassis Details
Stock Number
G264321
Stock Type
New
Year
2026
Make
GMC
Model
Sierra 3500
Class
3
GVWR
14,000
Drivetrain
4WD
Cab Type
Crew
Vehicle Trim
SLT DRW
Vehicle VIN
1GT4UUEY2TF197458
Interior Color
Jet Black, Perforated Leather-appointed front seat trim
Seating Capacity
6
Exterior Color Description
Volcanic Red Tintcoat
Engine Cylinder Count
8
Engine
6.6L Duramax Turbo-Diesel V8 engine
Transmission Type
Automatic
Fuel Type
Diesel
Engine Model
L5P
Engine Size (L)
6.6
Horsepower
470
Brake Type
Hydraulic
Vehicle Options
Steering, Digital Variable Steering Assist This system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger) lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm])
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.)
Wipers, front rain-sensing
Floor covering, color-keyed carpeting
Bed Step, Black integrated on forward portion of bed on driver and passenger side
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
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)
Steering wheel audio controls
Grille, Chrome surround with chrome insert bars
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
Driver memory, recalls driver "presets" for power driver seat and outside mirrors
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
Daytime Running Lamps LED signature lighting
SiriusXM
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
Remote vehicle starter system
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
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
USB ports, (2) charge-only, rear
LED Signature DRL's
Bumper, rear chrome with bumper CornerSteps
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)
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
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.)
Air filter, heavy-duty
Compass, located in instrument cluster
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
Window, power front, drivers express up/down
Cooling, external engine oil cooler
Theft-deterrent system, unauthorized entry
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.)
Indicator-Seat Belt WARNING, Rear Seat (Requires Crew Cab or Double Cab model.)
Brake lining wear indicator
Exterior Temperature Display located in radio display
Keyless Open and Start includes remote keyless entry
Door locks, power
Seat adjuster, driver 10-way power including lumbar
GMC Premium information Display- 13.4" diagonal Multicolor touch screen
Wireless Phone Projection for Apple CarPlay and Android Auto
Seat adjuster, passenger 10-way power including lumbar
Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
Mirror caps, chrome
Suspension Package (Not available with (X31) Off-Road Package.)
Headlamps, Animated LED projectors, LED turn signals and Daytime Running Lamps
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 underseat storage, (includes child seat top tether anchor)
Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
Moldings, beltline, stainless steel
Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Tire Pressure Monitoring System auto learn, includes Tire Fill Alert (does not apply to spare tire)
Transfer case, two-speed active electronic Autotrac with push button control (Requires 4WD models.)
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)
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
Defogger, rear-window electric
CornerStep, rear bumper
Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance (Deleted when (ZW9) pickup bed delete is ordered.)
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.)
Fog lamps, LED
Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
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.)
Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
Four wheel drive
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
Door handles, chrome
Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
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