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AT4
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Introducing the 2026 GMC Sierra 3500HD AT4, a robust and versatile truck designed to handle anything life throws your way. It's offered in a striking Onyx Black exterior that perfectly complements the Jet Black interior with Kalahari accents. This formidable truck is not only built for power but also for comfort and innovation.
Under the hood, you'll find the mighty Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission. This combination ensures smooth power delivery and impressive torque, making it an ideal choice for both everyday driving and heavy-duty tasks. The 4WD drivetrain guarantees outstanding traction and control, especially on challenging terrains.
Key Features:
Performance and Capability:
Duramax 6.6L V8 Turbodiesel engine
10-speed automatic transmission
4WD drivetrain for optimal traction
Gooseneck/5th Wheel Prep Package and Hitch Package
X31 Off-Road Package with Hill Descent Control
Interior Comfort and Technology:
Spacious 4D Crew Cab design
Heated and ventilated leather seats for both driver and passenger
10-way power-adjustable front seats with lumbar support
Bose Premium 7-Speaker Sound System for crystal-clear audio
GMC Premium 13.4" Diagonal Information Display
Multicolor 15" Diagonal Head-Up Display for key driving information
Keyless Entry and Push Button Start for convenience
Cooled seats and heated steering wheel for added comfort
Wireless Charging and Wireless Phone Projection
Safety and Driver Assistance:
Automatic Emergency Braking and Forward Collision Alert
Lane Departure Warning System
Rear Cross Traffic Alert and Trailer Side Blind Zone Alert
HD Surround Vision and Bed View Camera
Rear Park Assist and Following Distance Indicator
Safety Alert Seat and Tire Pressure Monitoring System
Exterior Highlights:
LED Cargo Area Lighting and GMC MultiPro Tailgate
Off-Road High Clearance Step
Spray-on Pickup Bedliner with GMC Logo
This 2026 GMC Sierra 3500HD AT4 is equipped with the AT4 Preferred and Premium Plus Packages, ensuring that you have all the luxuries and capabilities needed for both daily adventures and tough jobs. Whether you're towing a trailer on a distant journey or navigating local roads, this Sierra ensures you do so with style and confidence.
Embrace the rugged luxury and state-of-the-art technology the Sierra 3500HD AT4 has to offer and experience the pinnacle of truck performance and comfort. 🚗💪
Sunday
11:00am - 5:00pm
Monday
9:00am - 8:00pm
Tuesday
9:00am - 8:00pm
Wednesday
9:00am - 8:00pm
Thursday
9:00am - 8:00pm
Friday
9:00am - 7:30pm
Saturday
9:00am - 7:30pm
Vehicle pricing includes all applicable manufacturer offers (subject to expiration dates) and a documentary service fee*. Tax, title, tags, and government fees are excluded and must be paid by the purchaser. Additional offers (e.g., military, loyalty, college grad) may apply but are not reflected in advertised pricing. Actual dealer pricing may vary from MSRP. Due to limited inventory and third-party data compilation, all prices and offers are subject to change without notice. Vehicles are subject to prior sale and may be in transit; please contact the dealer to confirm availability. Images may be stock photos and might not reflect exact vehicle specifications. Financing is subject to lender approval based on approved credit and may not be compatible with special factory financing. EPA mileage estimates are for comparison only; actual mileage varies. Vehicles may be subject to unrepaired open recalls; visit safercar.gov for current status. Jeff Wyler reserves the right to correct errors/omissions and makes no representations, express or implied, regarding vehicle condition, history, or warranties. Purchaser must confirm all data prior to purchase. Alternate website pricing may not be accepted. All pricing includes a documentary service fee of $398 in OH, $260 in IN, $589 in Jefferson Co., KY, and $498 in Campbell/Kenton Co., KY. This fee does not include preparation of legal documents or documents incidental to credit extension. Credit card payments are subject to a 3% merchant services convenience fee. Wyler® and Jeff Wyler® are registered trademarks of the Jeff Wyler Automotive Family, Inc.
AT4