Summit White 2023 GMC Sierra 3500HD AT4 4WD
When serious capability meets premium refinement, you get a truck like this 2023 GMC Sierra 3500HD AT4. Built for heavy-duty work and backcountry exploration alike, this Sierra delivers the power, technology, and rugged style that drivers across the Pacific Northwest demand.
At its core is the legendary Duramax 6.6L V8 Turbodiesel, paired with a 10-speed automatic transmission and 4WD, providing massive torque, exceptional towing capability, and confident performance whether youre hauling equipment, towing a large trailer, or climbing through mountain passes.
The AT4 trim adds aggressive off-road styling and capability, including red recovery hooks, the X31 Off-Road Package, a 2-speed active transfer case, and a high-gloss black mesh grille that gives this Sierra a bold and commanding presence. LED smoked amber roof marker lamps and deep-tinted glass add to its unmistakable heavy-duty look.
This truck is built to tow and haul with confidence thanks to its impressive trailering technology and equipment, including:
Gooseneck / 5th Wheel Prep Package
Gooseneck / 5th Wheel Package
ProGrade Trailering System
Integrated trailer brake controller
Bed View Camera with trailer camera provisions
HD Surround Vision with trailer view capability
120-volt bed-mounted power outlet
Inside, the Sierra AT4 offers a premium and comfortable cabin designed for long days on the road or at the job site. Features include:
Heated and ventilated front seats
Heated second-row outboard seats
Bose premium 7-speaker sound system
Wireless phone charging
Wireless phone projection
GMC infotainment system with navigation
Wi-Fi hotspot capability
Convenience and everyday functionality are enhanced with thoughtful features like remote vehicle start, power sliding rear window with defogger, universal home remote, perimeter lighting, and multiple USB ports throughout the cabin.
Safety and driver confidence are supported by Driver Alert Package I, which includes:
Lane Change Alert with Side Blind Zone Alert
Rear Cross Traffic Alert
Ultrasonic front and rear park assist
HD rear vision camera
Additional practical touches such as spray-on pickup bed liner with AT4 logo, LED cargo area lighting, rear wheelhouse liners, premium floor liners with removable carpet inserts, and multiple 120-volt and 12-volt power outlets make this truck ready for both work and adventure.
Whether youre towing a large RV through the Cascades, hauling equipment to the job site, or heading off the pavement for a weekend in the mountains, the GMC Sierra 3500HD AT4 delivers the heavy-duty capability and premium comfort to do it all.
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