Home / New vehicles / GMC / Sierra 2500HD
2026 GMC Sierra 2500HD AT4
VIN 1GT4UPEY6TF399754 · Stock TZ399754
Details
- Engine
- 6.6L V8 diesel
- Transmission
- 10-speed automatic
- Drivetrain
- 4WD
- Engine
- Duramax 6.6L V8 Turbodiesel
- Body
- 4D Crew Cab
- Exterior
- Onyx Black
- Interior
- Jet Black With Kalahari Accents
- Fuel
- Diesel
Equipment 150
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
- 3 Years SiriusXM
- 7 Speakers
- AM/FM radio: SiriusXM with 360L
- Bose Premium 7-Speaker Sound System
15 more
- Premium audio system: Premium GMC Infotainment System
- 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
25 more
- Body Color Wheel Arch Moldings
- Bumpers: body-color
- Front License Plate Kit
- Gloss Black Header Grille and Grille Insert Bars
- GMC MultiPro Tailgate Step Lights
- 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
- Hard Folding Truck Bed Cover
- Black Lug Nut & Wheel Lock Kit
- 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
Meet the 2026 GMC Sierra 2500HD AT4, a heavy-duty powerhouse finished in striking Black with luxurious Jet Black and Kalahari Accents leather inside. Built on a Crew Cab Standard Bed platform with 4WD capability, this truck combines serious capability with premium comfort and advanced technology to handle work and life with confidence.
Powered by the robust Duramax 6.6L V8 Turbodiesel engine and mated to a smooth 10-Speed Automatic transmission, the Sierra 2500HD delivers the strength you need. The AT4 Preferred Package, AT4 Premium Plus Package, and X31 Off-Road Package equip this truck with rugged credentials, while the Gooseneck/5th Wheel Prep Package and Technology Package add versatility and connectivity.
Key Features:
- Duramax 6.6L V8 Diesel Turbocharged engine
- Off-Road Suspension with Hill Descent Control
- Multicolor 15" Diagonal Head-Up Display
- Inside Rearview Auto-Dimming Rear Camera Mirror
- Power Sunroof and Power Sliding Rear Window
- LED Smoked Amber Roof Marker Lamps
- Universal Home Remote
- Apple CarPlay/Android Auto with Wireless Phone Projection
- Premium Bose 7-Speaker Sound System with SiriusXM
- Heated and Ventilated Front Seats with 10-Way Power Adjustment
Advanced safety features include Automatic Emergency Braking, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, and HD Surround Vision. The wireless charging, Ultrasonic Park Assist, and comprehensive camera system make every drive safer and more convenient.
This new Sierra 2500HD is ready to impress both on the job site and beyond. Visit us to experience this exceptional truck firsthand.
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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