2024 GMC SLT DIESEL 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 powerful towing capability begins with robust drivetrain components like the 445 horsepower and 910 lb-ft of torque, 6.6L Duramax Turbo Diesel engine with the Dual Path Air Induction System paired with the available Allison 10-speed automatic transmission, which delivers optimized gear shifts for maximum power, torque and efficiency. 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. Edmunds saidFor most people, we recommend the midrange SLT trim. It adds several features that dress up the interior and improve capabilities, making it feel much more polished than the rather spartan lower trims. The SLT trim equips the truck with added styling, comfort and convenience features Power-folding and -extending trailering mirrors with auto-dimming, rain sensing wipers, leather trim, keyless access with pushbutton start, remote engine start, power adjustable front seats with drivers memory, heated front seats and heated steering wheel, high-definition back up camera with hitch view angle, and smartphone trailering app. This SLT also features, 20 inch 6 spoke aluminum rims, a 10-way power drivers seat, and a theft deterrent system
