2026 GMC Sierra 3500 HD Pro

At Brennan Buick GMC, we're here for you throughout the life of your vehicle. If you're in the market for a new or used truck, SUV, or car, visit our dealership to see the best that Brennan Buick GMC has to offer. - 6.6L V8 Engine with 10-Speed Automatic Transmission - 4WD with 2-Speed Electronic Shift Transfer Case - Gooseneck/5th Wheel Prep Package - Snow Plow Prep/Camper Package - X31 Off-Road Package with Off-Road Suspension and Hill Descent Control - Suspension Package - Convenience Package - EZ Lift Power Lock and Release Tailgate - Spray-on Pickup Bedliner - 220 Amp Alternator with Heavy-Duty 80 Amp-Hour Battery - Front 40/20/40 Split-Bench Seats with Lockable Storage - Electric Rear-Window Defogger - 120-Volt Bed Mounted Power Outlet and 120-Volt Instrument Panel Power Outlet - LED Cargo Area Lighting - 18 Machined Aluminum Wheels The 2026 GMC Sierra 3500HD Pro arrives in a striking Beige exterior that commands attention on any job site or road. This truck is engineered for serious work, combining raw capability with the refined features you expect from GMC. The powerful 6.6L V8 engine paired with a 10-Speed Automatic transmission delivers the performance needed for demanding applications. With 4WD and a 2-Speed Electronic Shift Transfer Case, you have the control to tackle challenging terrain and weather conditions with confidence. This Sierra 3500HD Pro comes equipped with multiple specialized packages designed for versatility. The Gooseneck/5th Wheel Prep Package and Snow Plow Prep/Camper Package prepare this truck for whatever specialized work you need to accomplish. The X31 Off-Road Package includes an advanced suspension system and Hill Descent Control, giving you exceptional traction and stability both on and off the pavement. The front 40/20/40 split-bench seats with lockable storage provide practical comfort and security for your crew and gear. Practicality extends throughout this truck's design. The spray-on pickup bedliner protects your cargo investments, while LED cargo area lighting ensures visibility during early mornings or late evenings. The EZ Lift Power Lock and Release tailgate simplifies loading and unloading, and dual power outlets one mounted in the bed and one on the instrument panel keep your tools and devices charged throughout the workday. The 220 Amp Alternator and heavy-duty battery system ensure reliable power for all your electrical demands. Safety features work seamlessly with capability on this Pro model. Automatic Emergency Braking, Forward Collision Alert, and Front Pedestrian Braking provide active protection. Lane Departure Warning System and Following Distance Indicator keep you aware of your surroundings. Electronic Stability Control and Traction Control help maintain composure in challenging conditions. The rear backup camera gives you clear visibility when reversing. Technology integrates thoughtfully into the work environment. The GMC Infotainment System with AM/FM radio keeps you connected, while Wireless Phone Projection allows safe device integration. OnStar Services capability provides emergency communication and support. Auto-Dimming inside rear-view mirror and IntelliBeam Automatic High Beam technology enhance visibility and convenience during varied driving conditions. Comfort features acknowledge that professional drivers spend significant time behind the wheel. Four-way manual adjusters for both driver and passenger seats let you find your ideal position. The tilt steering wheel adds further customization for your driving comfort. Climate control, power windows, and heated door mirrors make everyday operation more pleasant. The remote keyless entry and push button start streamline your access and startup. Contact Brennan Buick GMC today to schedule your test drive of this capable 2026 GMC Sierra 3500HD Pro and discover how i