Is adventure calling? The 2026 GMC Sierra 3500HD AT4 is ready to take you there.2026 GMC Sierra 3500HD AT4 4D Crew Cab Onyx Black Backup Camera, Android Auto, Apple CarPlay, Bluetooth, Remote Start, Adaptive Cruise Control, Sierra 3500HD AT4, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Onyx Black, Jet Black With Kalahari Accents Leather, 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, 2-Speed Active Transfer Case, 220 Amp Alternator, Alloy wheels, AT4 Preferred Package, AT4 Premium Plus Package, Auto High-beam Headlights, Auto-Dimming Inside Rearview Mirror w/Camera, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7-Speaker Sound System, Deep-Tinted Glass, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Rain-Sensing Wipers, Fully automatic headlights, Gloss Black Header & Grille Insert Bars, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Keyless Open & Start, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Multicolor 15 Diagonal Head-Up Display, Off-Road High Clearance Step (LPO), Pickup Bed, Power Front Windows w/Passenger Express Up/Down, Power Sliding Rear Window w/Defogger, Power Sunroof, Preferred Equipment Group 4SB, Prem Front Floor Liners w/Removable Carpet Insert, Prem Rear Floor Liners w/Removable Carpet Insert, Push Button Start, Rain sensing wipers, Rear Cross Traffic Alert, Rear Wheelhouse Liners, Remote Vehicle Starter System, Safety Alert Seat, SiriusXM w/360L Trial Subscription, Snow Plow Prep/Camper Package, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Technology Package, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wheels: 20 High Gloss Black 8 Spoke Aluminum, Wireless Charging, Wireless Phone Projection, X31 Off-Road Package. Duramax 6.6L V8 Turbodiesel 4WD 10-Speed AutomaticStop by Woody Buick GMC Naperville today to schedule a test drive and see for yourself why Woody Buick GMC is Chicagoland's most awarded GM dealer! Make sure to take advantage of the best deals and incentives around! We have a 2026 GMC Sierra 3500HD AT4 on sale for you! Price includes: $500 - Buick & GMC Consumer Cash Program. Exp. 01/02/2026

Woody Buick GMC of Naperville
1585 W Ogden Ave
Naperville, IL 60540

Additional Error Text: The Model Year decoded for this VIN may be incorrect. If you know the Model year, please enter it and decode again to get more accurate information.
Antilock Braking System Abs: Standard
Body Class: Pickup
Brake System Type: Hydraulic
Curtain Air Bag Locations: All Rows
Displacement Cc: 6600.0
Displacement Ci: 402.7567110252330741
Displacement L: 6.6
Drive Type: 4WD
Engine Configuration: V-Shaped
Engine Model: L5P
Engine Number Of Cylinders: 8
Front Air Bag Locations: 1st Row (Driver and Passenger)
Fuel Type Primary: Diesel
Gross Vehicle Weight Rating From: Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Gross Vehicle Weight Rating To: Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Other Engine Info: DI, DURAMAX, GEN 5 VAR. 1
Other Restraint System Info: AY0 - Active Manual Belts
Seat Belt Type: Manual
Series: 3500
Side Air Bag Locations: 1st Row (Driver and Passenger)
Trim: AT4
Turbo: Yes
Vehicle Descriptor: 1GT4UVEY*TF
Vehicle Type: TRUCK