2026 GMC Sierra 2500HD AT4

VIN 1GT4UPEY5TF399695 · Stock TF399695

Photos coming soon

Details

Engine: 6.6L V8 diesel
Transmission: 10-speed automatic
Drivetrain: 4WD

Engine: Duramax 6.6L V8 Turbodiesel
Body: 4D Crew Cab
Exterior: Sterling Metallic
Interior: Jet Black With Kalahari Accents
Fuel: Diesel

Equipment 139

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

18 more

Bumpers: body-color
Gloss Black Header Grille and Grille Insert Bars
IntelliBeam Automatic High Beam on/Off
LED Smoked Amber Roof Marker Lamps
Rear step bumper
Rear Wheelhouse Liners
Spray-on Pickup Bedliner with GMC Logo
Turn signal indicator mirrors
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

10 more

2-Speed Active Transfer Case
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
Hitch Guidance with Hitch View
in-Vehicle Trailering System App
3.73 Rear Axle Ratio
Power steering
Front anti-roll bar

From the store

Call us at 512-954-9290

This 2026 GMC Sierra 2500HD AT4 in Silver delivers premium capability and refined comfort. Built on a Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission, this crew cab standard bed truck combines raw power with advanced technology. The AT4 trim brings serious off-road credentials alongside luxury-focused appointments.

- Duramax 6.6L V8 Turbodiesel with 10-Speed Automatic

- AT4 Preferred Package, AT4 Premium Plus Package, and X31 Off-Road Package

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

- Gooseneck/5th Wheel Prep Package for heavy hauling

- Technology Package including Multicolor 15" Head-Up Display and Wireless Phone Projection

- Premium Bose 7-Speaker Sound System with SiriusXM 360L Trial

- Heated and Ventilated Leather Seats with 10-Way Power Adjustment

- Advanced Safety: HD Surround Vision, Rear Cross Traffic Alert, Ultrasonic Park Assist, Automatic Emergency Braking

- Bed View Camera with Trailer Viewing Software and Hitch Guidance

- Spray-on Bedliner with LED Cargo Lighting and Power Outlets

The interior features Jet Black leather with Kalahari accents, wireless charging, and a premium infotainment system. 4WD capability and sophisticated off-road technology make this truck ready for any terrain. Visit our showroom to experience the commanding presence and capability of this exceptional Sierra 2500HD.

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