The GMC Sierra 3500HD CC 2026 is a heavy-duty pick-up truck noted for its robust capabilities. This model year is part of the vehicle's third generation (2015-present). It's available in 4 trims: Regular Cab, Work Truck, SLE, and SLT. Powering the Sierra 3500HD CC is a standard 6.6L V8 gasoline engine producing 401 hp and 464 lb-ft of torque, and an optional powerful 6.6L Duramax Turbodiesel V8 that boasts a massive 445 hp and 910 lb-ft. This truck employs a six-speed automatic transmission for the standard engine and an Allison® 10-speed automatic for the Duramax diesel. Both RWD and 4WD drivetrains are offered. It features the latest GMC Infotainment System with an 8" diagonal color touchscreen. Apple CarPlay and Android Auto are standard features. It also hosts a wide spectrum of safety features, including StabiliTrak with Traction Control, rear vision camera, and ProGrade Trailering System. The updates for this model year have yet to be revealed.