Elevate your driving experience with the exceptional 2026 GMC Sierra 3500HD Pro. Engineered to conquer any challenge, this powerful pickup boasts a commanding presence and uncompromising capability. Meticulously equipped, the Sierra 3500HD Pro offers an impressive array of features to enhance your driving dynamics and convenience: - Duramax 6.6L V8 Turbodiesel engine delivering 470 horsepower and an incredible 975 lb-ft of torque - 10-speed automatic transmission for seamless power delivery - Gooseneck/5th Wheel Prep Package for effortless towing of the heaviest loads - Pro Safety Plus Package with advanced safety technologies like Front and Rear Park Assist, Rear Cross Traffic Alert, and Lane Change Alert with Side Blind Zone Alert - Convenience Package with EZ Lift power tailgate, LED cargo bed lighting, and more The Sierra 3500HD Pro's rugged exterior is complemented by a refined and technology-driven interior, featuring the GMC Infotainment System, 120-volt power outlets, and a Bed View Camera for enhanced visibility. With its impressive capabilities and comprehensive set of features, this truck is ready to tackle any task with confidence. Elevate your driving experience and take command of the road in the 2026 GMC Sierra 3500HD Pro. Visit Castle Buick GMC today to explore this exceptional vehicle and discover how it can transform your driving adventures. Welcome to Castle Buick GMC, your trusted Buick and GMC dealership in North Riverside, IL, proudly serving shoppers from Cicero, Chicago, Berwyn, Oak Park, Brookfield, and nearby suburbs. If you are searching for new Buick vehicles for sale near me or new GMC trucks and SUVs near Chicago, you are in the right place. Explore our lineup of new Buick Envista, Encore GX, Envision, and Enclave modelsperfect for drivers seeking comfort, technology, and exceptional value. On the GMC side, shop our selection of GMC Terrain, Acadia, Yukon, Sierra 1500, and Sierra HD trucks, with multiple trims and configurations to match your performance and towing needs. At Castle Buick GMC, you will enjoy competitive pricing, easy financing, and a knowledgeable sales team ready to help you find the right vehicle. Browse our new Buick and GMC inventory online, schedule a test drive, or visit our North Riverside showroom today. Contact our sales team at (708) 853-3542. Price does not include tax, title.