Dealer
Contacts
For the least amount of hassle with the purchase of a vehicle, we recommend that you speak only with the above-listed credit union Dealer Representative(s).
Seller’s Comments
Come see why driving a Buick isn't just transportation—it's an upgrade to everything you expect on the road.
This 2026 GMC Sierra 2500HD AT4 is a true powerhouse, built to conquer any terrain and elevate your driving experience. Equipped with the legendary Duramax 6.6L V8 Turbodiesel engine, this truck delivers an impressive 470 horsepower and an astounding 975 lb-ft of torque, ensuring effortless towing and hauling capabilities.
- 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel
ompatible)
- 10-Speed Automatic Transmission
- 4-Wheel Drive
- 7 Speakers
- Bose Premium 7-Speaker Sound System
- 3.73 Rear Axle Ratio
- Pickup Box
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Power Driver Seat with Memory
- Push Button Start
- Remote Vehicle Starter System
- Off-Road Suspension
- Spray-on Pickup Bedliner with GMC Logo
- Heated Steering Wheel
- Trailer Cam Provisions and Trailer Viewing Software
- Wireless Charging
The Sierra 2500HD AT4 is designed to tackle any adventure, on-road or off. Its rugged yet refined exterior, combined with a meticulously crafted interior, creates a truly impressive package. From the bold, gloss black grille to the power-retractable assist steps, every detail has been thoughtfully engineered to deliver uncompromising capability and style.
Inside, you'll find a wealth of premium features that elevate your driving experience. The Bose premium sound system, heated and ventilated front seats, and dual-zone automatic climate control ensure your comfort, while the wireless charging and 120-volt power outlets keep your devices powered up and ready to go.
The Sierra 2500HD AT4 also comes equipped with an impressive array of advanced safety technologies, including Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert, giving you the confidence to tackle any road with peace of mind.
At the end of the day, the right vehicle doesn't just get you where you're going—it changes how you feel getting there. That's exactly what Buick delivers. Smooth, stylish, and packed with features you'll appreciate every single drive.
Don't just take our word for it—come experience it for yourself. Stop by today, take a seat behind the wheel, and see why so many drivers are making the switch to Buick. Your next upgrade is waiting. Price includes all applicable rebates:$1000 - Buick & GMC Consumer Cash Program. Exp. 06/01/2026
Summary
-
Miles
2 -
Ext. Color
Gray -
Int. Color
Jet Black With Kalahari Accents -
Engine
Duramax 6.6L V8 Turbodiesel -
Transmission
Automatic -
Trim
AT4 -
Drivetrain
4WD -
City MPG
0 -
Highway MPG
0 -
VIN
1GT4UPEY4TF275613 -
Stock #
TF275613
Features
Options
- X31 Off-Road Package
- 7 Speakers
- AM/FM radio: SiriusXM with 360L
- Bose Premium 7-Speaker Sound System
- 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
- Air Conditioning
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Memory seat
- Power driver seat
- Power steering
- Power windows
- Push Button Start
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Manual Tilt-Wheel/Telescoping Steering Column
- Off-Road Suspension
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Emergency communication system: OnStar
- Front anti-roll bar
- Front wheel independent suspension
- Keyless Open and Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Pickup Box
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Hill Descent Control
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Unauthorized Entry Theft-Deterrent System
- Speed control
- 2-Speed Active Transfer Case
- Heavy-Duty 80 Amp Battery
- Auto-dimming door mirrors
- Bumpers: body-color
- Gloss Black Header Grille and Grille Insert Bars
- Heated door mirrors
- IntelliBeam Automatic High Beam on/Off
- LED Cargo Area Lighting
- Power door mirrors
- Power-Retractable Black Assist Steps
- Rear step bumper
- Rear Wheelhouse Liners
- Spray-on Pickup Bedliner with GMC Logo
- Turn signal indicator mirrors
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- 2 USB Ports
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Bed View Camera with Two Trailer Camera Provisions
- Buckle to Drive
- Compass
- Driver door bin
- Driver vanity mirror
- Floor-Mounted Center Console
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- Front Premium Floor Liners with Removable Carpet Insert
- Front reading lights
- HD Surround Vision
- Heated steering wheel
- Illuminated entry
- Inside Rearview Auo-Dimming Rear Camera Mirror
- OnStar Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Cross Traffic Alert
- Rear Premium Floor Liners with Removable Carpet Insert
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trailer Cam Provisions and Trailer Viewing Software
- Trailer Side Blind Zone Alert
- Trip computer
- Ultrasonic Front and Rear Park Assist
- Voltmeter
- Wireless Charging
- Wireless Phone Projection
- 10-Way Power Driver Seat Adjuster with Lumbar
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Front Bucket Seats
- 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
- Safety Alert Seat
- Split folding rear seat
- Ventilated Driver and Front Passenger Seats
- Ventilated front seats
- Passenger door bin
- Hitch Guidance with Hitch View
- in-Vehicle Trailering System App
- Alloy wheels
- Wheels: 20" High Gloss Black 8 Spokes Aluminum
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
- Power Front Passenger Windows with Express Up/Down
- Rain sensing wipers
- Variably intermittent wipers
- 3.73 Rear Axle Ratio
Location
Big Star Buick GMC
4411 East FwyBaytown, TX 77521
