Todays crop of full-size trucks are plenty capable for most users, but for the select few who need to tow and haul even more, heavy-duty trucks are the way to go. The 2024 Sierra 2500HD is the first rung in GMC's heavy-duty lineup, supporting the even more capable 3500HD. When this Sierra HD generation debuted four years ago, it lagged behind rivals in towing capacity and interior quality, but improvements along the way have largely evened the playing field. Within that field, the GMC Sierra is positioned as a more luxurious version of the related Chevrolet Silverado 2500HDEdmunds
Sierra heavy dutys 6.6L V8 gas engine, standard on, most models, is now paired with the Allison 10-speed automatic transmission. This allows the engine to be held closer to its peak power band, optimizing power, torque and efficiency. The gasoline engine also upgrades to a 10-speed transmission, replacing the previous six-speed.
All 2024 Sierras also receive the suite of driver assistants that include Forward collision Mitigation, Lane departure warning, Automatic high-beams, and a rear seat reindeer. In addition to al of the standard features found on the GMC Pro edition SLE adds popular features such as power-adjustable heated trailering mirrors, the Multi-Pro configurable tailgate, an integrated brake trailer controller, cloth seats, cruise control, power door locks and windows, keyless entry, a 13.4 inch touchscreen infotainment display and Google built in apps for navigation and voice assistance.
This SLT also features 20 inch rims a 10-way power seat, LED fog lamps, remote start heated driver and front passenger seats, and a heated steering wheel.