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2026 GMC Sierra 2500HD AT4

VIN 1GT4UPEY8TF375441 · Stock TF375441

2026 GMC Sierra 2500HD AT4 in Titanium, photo 1 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 2 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 3 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 4 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 5 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 6 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 7 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 8 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 9 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 10 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 11 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 12 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 13 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 14 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 15 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 16 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 17 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 18 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 19 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 20 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 21 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 22 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 23 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 24 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 25 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 26 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 27 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 28 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 29 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 30 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 31 of 322026 GMC Sierra 2500HD AT4 in Titanium, photo 32 of 32
32 photos

Details

Engine
6.6L V8 diesel
Transmission
10-speed automatic
Drivetrain
4WD
Engine
Duramax 6.6L V8 Turbodiesel
Body
4D Crew Cab
Exterior
Titanium
Interior
Jet Black With Kalahari Accents
Fuel
Diesel

Equipment 145

Packages

  • AT4 Preferred Package
  • AT4 Premium Plus Package
  • Gooseneck/5th Wheel Prep Package
  • Preferred Equipment Group 4SB
2 more
  • Technology Package
  • X31 Off-Road Package

Safety

  • Emergency communication system: OnStar
  • Lane Departure Warning System
  • Security system
  • Unauthorized Entry Theft-Deterrent System
21 more
  • Automatic Emergency Braking
  • Buckle to Drive
  • Following Distance Indicator
  • Forward Collision Alert
  • Front Pedestrian Braking
  • HD Surround Vision
  • Inside Rearview Auo-Dimming Rear Camera Mirror
  • Rear Cross Traffic Alert
  • Ultrasonic Front and Rear Park Assist
  • Safety Alert Seat
  • Traction control
  • 4-Wheel Disc Brakes
  • ABS brakes
  • Dual front impact airbags
  • Dual front side impact airbags
  • Low tire pressure warning
  • Occupant sensing airbag
  • Overhead airbag
  • Brake assist
  • Electronic Stability Control
  • Panic alarm

Technology

  • 7 Speakers
  • AM/FM radio: SiriusXM with 360L
  • Bose Premium 7-Speaker Sound System
  • Premium audio system: Premium GMC Infotainment System
14 more
  • Radio: AM/FM Stereo with Premium GMC Infotainment System
  • SiriusXM with 360L Trial Subscription
  • Steering Wheel Audio Controls
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • 2 Charge-Only Rear USB Ports
  • 2 Charge/Data USB Ports Inside Center Console
  • 2 USB Ports
  • Apple CarPlay/Android Auto
  • Multicolor 15" Diagonal Head-Up Display
  • OnStar Services Capable
  • Wireless Charging
  • Wireless Phone Projection
  • Steering wheel mounted audio controls

Interior

  • Automatic temperature control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
50 more
  • Driver Memory
  • Memory seat
  • Power driver seat
  • Push Button Start
  • Remote Vehicle Starter System
  • Universal Home Remote
  • Manual Tilt-Wheel/Telescoping Steering Column
  • Keyless Open and Start
  • Power Sunroof
  • LED Cargo Area Lighting
  • Auto-dimming Rear-View mirror
  • Floor-Mounted Center Console
  • Front Premium Floor Liners with Removable Carpet Insert
  • Heated steering wheel
  • Rear Premium Floor Liners with Removable Carpet Insert
  • Rear reading lights
  • Rear seat center armrest
  • Voltmeter
  • 10-Way Power Driver Seat Adjuster with Lumbar
  • 10-Way Power Passenger Seat Adjuster with Lumbar
  • Front Center Armrest
  • Heated 2nd Row Outboard Seats
  • Heated Driver and Front Outboard Passenger Seats
  • Heated front seats
  • Heated rear seats
  • Perforated Leather-Appointed Front Seat Trim
  • Power passenger seat
  • Ventilated Driver and Front Passenger Seats
  • Ventilated front seats
  • Power Front Passenger Windows with Express Up/Down
  • Power Sliding Rear Window with Defogger
  • Air Conditioning
  • Power windows
  • Remote keyless entry
  • Speed control
  • Compass
  • Driver door bin
  • Driver vanity mirror
  • Front reading lights
  • Illuminated entry
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Front Bucket Seats
  • Split folding rear seat
  • Passenger door bin

Exterior

  • Pickup Box
  • Auto High-beam Headlights
  • Front fog lights
  • Auto-dimming door mirrors
21 more
  • Bumpers: body-color
  • Front License Plate Kit
  • Gloss Black Header Grille and Grille Insert Bars
  • IntelliBeam Automatic High Beam on/Off
  • LED Smoked Amber Roof Marker Lamps
  • Off-Road High Clearance Step
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Spray-on Pickup Bedliner with GMC Logo
  • Turn signal indicator mirrors
  • Winter Grille Cover
  • Wheels: 20" High Gloss Black 8 Spokes Aluminum
  • Deep-Tinted Glass
  • Front Rain-Sensing Wipers
  • Rain sensing wipers
  • Delay-off headlights
  • Fully automatic headlights
  • Heated door mirrors
  • Power door mirrors
  • Alloy wheels
  • Variably intermittent wipers

Mechanical

  • Off-Road Suspension
  • Speed-sensing steering
  • Front wheel independent suspension
  • Hill Descent Control
13 more
  • 2-Speed Active Transfer Case
  • 220-Amp Alternator
  • Engine Block Heater
  • Exhaust Brake
  • Heavy-Duty 80 Amp Battery
  • Bed View Camera with Two Trailer Camera Provisions
  • Trailer Cam Provisions and Trailer Viewing Software
  • Trailer Side Blind Zone Alert
  • Upfitter Switch Kit (5)
  • Hitch Guidance with Hitch View
  • in-Vehicle Trailering System App
  • Power steering
  • Front anti-roll bar

From the store

Call us at 512-954-9290

The 2026 GMC Sierra 2500HD AT4 stands ready for serious work and adventure. Finished in elegant Silver with a sophisticated Jet Black and Kalahari Accents leather interior, this powerful Crew Cab Standard Bed truck is built to handle whatever demands you place on it. Powered by the legendary Duramax 6.6L V8 Turbodiesel engine paired with a smooth 10-Speed Automatic transmission, the Sierra 2500HD delivers commanding capability and confidence on the road.

- Duramax 6.6L V8 Turbodiesel engine with 220-amp alternator and engine block heater

- 4WD 2-Speed Active Transfer Case with Hill Descent Control and Off-Road Suspension

- Gooseneck/5th Wheel Prep Package with hitch platform capability

- Premium Bose 7-speaker sound system with SiriusXM 360L trial subscription

- Multicolor 15-inch head-up display with advanced trailer camera system

- Heated and ventilated leather front seats with power adjusters and lumbar support

- HD Surround Vision with bed view camera and ultrasonic park assist

- Power sunroof with deep-tinted glass and power sliding rear window

- Wireless phone projection and charging with Apple CarPlay/Android Auto

- Spray-on bedliner with GMC logo and 120-volt powered outlets

Loaded with technology, comfort, and capability, this AT4 is engineered for those who demand excellence. Visit our showroom to experience the commanding presence and premium features that set the Sierra 2500HD apart, and discover why this is the truck for your most demanding tasks.

Call us at 512-954-9290 Price includes: $2000 - GMC Bonus Cash. Exp. 11/30/2026 $2500 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026

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2026 GMC Sierra 2500HD AT4Stock TF375441 · Covert Buick GMC Bee Cave

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2026 GMC Sierra 2500HD AT4Stock TF375441 · Covert Buick GMC Bee Cave

An email or a phone number is enough.

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2026 GMC Sierra 2500HD AT4Stock TF375441 · Covert Buick GMC Bee Cave

An email or a phone number is enough.

By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email.