GMC's Sierra lineup offers some of the most durable pickup trucks available, with powerful performance and helpful exterior features. Our dealership is taking a closer look at the new 2025 GMC Sierra 2500 HD and sharing some of the attributes that set it apart from other trucks. more 6 Features That Make the 2025 GMC Sierra 2500 HD a Heavy-Duty Leader 1. 6.6L V8 Gas Engine The Sierra 2500 comes with a 6.6L V8 gas engine that delivers 401 HP at 5200 rpm and 464 lb.-ft. of torque at 4000 rpm. This engine is paired with an Allison 10-speed automatic transmission and comes to standard on all Sierra 2500 models. 2. 6.6L Duramax Turbo-Diesel Engine The available 6.6L Duramax Turbo-Diesel engine is a perfect choice for drivers with extreme towing needs. This engine increases your towing capacity to 22,070 pounds and yields an impressive 470 HP at 2800 rpm and 975 lb.-ft. of torque at 1600 rpm. 3. GMC MultiPro Tailgate The available GMC MultiPro tailgate makes every hauling project easier because it offers six different ways to load and unload cargo. The tailgate has a built-in step that can be folded down to help you climb into the truck bed quickly. The tailgate can also be reconfigured to accommodate longer pieces of cargo, such as lumber. 4. GMC Premium Infotainment System with Google Built-In All 2025 Sierra models come with a GMC Infotainment system, but the SLE and higher trims have a Premium Infotainment system that includes Google built in. This system provides smartphone integration through wireless Apple CarPlay and Android Auto, AM/FM radio, and SiriusXM radio compatibility. With the Google built-in addition, you can use convenient Google features like Maps, Assistant, and Gmail from inside your cabin. 5. Sierra HD Pro Safety The new Sierra 2500 has an exclusive safety package called Sierra HD Pro Safety, which uses driver-assistance functions to survey your surroundings and help you avoid accidents. Sierra HD Pro Safety includes the following assistive driving tools: Forward Collision Alert Following Distance Indicator Front Pedestrian Braking IntelliBeam Lane Departure Warning Buckle to Drive Automatic Emergency Braking The Sierra HD Pro Safety package works by using a combination of sensors and cameras that are placed strategically around your truck. This constantly monitors your path and detects potential hazards that could lead to an accident. 6. ProGrade Trailering Technology Towing is easier than ever thanks to the Sierra 2500's ProGrade trailering technology. Available features like Hitch Guidance and Hitch View let you check in on your trailer through an in-cabin camera, while the GMC trailering app displays important insights about your trailer directly in your truck cabin. Test drive the new Sierra 2500 at Tonkin Chevrolet GMC in The Dalles, OR, today!
