Key Features of the 2026 GMC Sierra 2500 HD

Duramax 6.6L Turbo-Diesel V8 with 10-Speed Automatic

When your plans include long grades, heavy trailers, and unpredictable weather, the available Duramax 6.6L turbo-diesel V8 stands out for its combination of strength and control. Rated at 470 horsepower and 975 lb-ft of torque, the Duramax is engineered to move serious weight with calm authority. It’s paired to a 10-speed automatic transmission that helps keep the engine right in its sweet spot, minimizing gear hunting while you’re ascending or descending with confidence. Rear-wheel drive and four-wheel drive configurations allow you to tailor traction to your needs, and the HD’s chassis is tuned to maintain composure with a load on the tongue or in the bed. If you tow regularly, this powertrain’s smooth, torque-rich character and smart gearing bring a notable sense of ease to every mile.

ProGrade Trailering System with Up to 15 Camera Views

Available camera technology provides up to 15 distinct views to make hitching, maneuvering, and lane changes feel more intuitive. Hitch view, bed view, and transparent trailer view are designed to reduce guesswork in tight spaces and help you keep an eye on your cargo and surroundings. Paired with built-in trailering profiles and checklists, the system helps simplify hookup, lighting checks, and maintenance reminders. For drivers who navigate job sites or crowded staging areas, the breadth of angles is a genuine time saver—especially when you’re solo. Once underway, those extra perspectives cut down on stress, so you can concentrate on traffic and terrain instead of second-guessing what’s happening behind you.

MultiPro Tailgate

The available MultiPro Tailgate adds practical versatility to the Sierra HD’s bed. With six distinct functions, it can serve as a conventional tailgate, a load stop for longer materials, a step for easier access, and a makeshift work surface when you’re organizing tools or paperwork. For crews that load and unload frequently, that flexibility reduces strain and speeds up the day’s workflow. Around town, the integrated steps and side bed steps make it easy to grab gear quickly, while available bed lighting, movable tie-downs, and a 120-volt outlet elevate the box into a fully functional work area even after dark. It’s a smart upgrade that turns the whole truck into a more effective tool.

13.4-inch Center Touchscreen with Google Built-in

Higher trims offer a 13.4-inch infotainment display that puts navigation, media, and vehicle settings within easy reach. Google Built-in integrates Google Maps and Google Assistant for voice-guided directions and hands-free tasks, while wireless Apple CarPlay and Android Auto let your smartphone apps flow naturally onto the screen. Many configurations also include a 12.3-inch digital gauge cluster to keep key information clear and configurable. For long days in the saddle, this seamless tech suite reduces distractions, speeds up your learning curve, and makes every interaction feel familiar. Add an available Bose audio system and the cabin takes on a quiet, premium character that complements the Sierra HD’s poised ride.

Comprehensive Safety and Driver Assistance

The Sierra HD brings a thoughtful mix of standard and available safety features for real-world peace of mind. Standard equipment includes Automated Emergency Braking, Lane Departure Warning, and Automatic High-Beam Headlights. Available systems such as Blind-Spot Monitoring, Rear Cross-Traffic Alert, and Adaptive Cruise Control are designed to expand your situational awareness and ease fatigue on longer highway hauls. Combine those features with the available 15-view camera setup and you have a truck that supports good habits behind the wheel—especially when your day involves constant merging, backing, and trailer checks. It’s capability accompanied by meaningful confidence.