The 2024 GMC Sierra 2500 HD Denali Ultimate is the most luxurious and fully loaded trim in GMC’s heavy-duty truck lineup. It blends premium materials and cutting-edge tech with serious towing and hauling capabilities, making it ideal for those who need a hard-working truck without sacrificing comfort or style.
Powering the Denali Ultimate is a 6.6L Duramax turbo-diesel V8 engine producing 470 horsepower and 975 lb-ft of torque, paired with a 10-speed Allison automatic transmission. This setup offers improved low-end power and smoother towing performance, with a max towing capacity of up to 22,500 lbs when properly equipped.
Inside, the Denali Ultimate is outfitted with full-grain leather upholstery, open-pore wood trim, and premium Alpine Umber accents. It features 16-way power front seats with heat, ventilation, and massage, a 13.4-inch touchscreen with Google Built-In, wireless Apple CarPlay and Android Auto, a 12.3-inch digital gauge cluster, and a 15-inch head-up display. A 12-speaker Bose audio system and a rear camera mirror also come standard.
On the outside, the Ultimate trim includes exclusive Vader chrome accents, 20-inch wheels, LED lighting, power-retractable running boards, and GMC’s versatile MultiPro tailgate with an integrated KICKER audio system.
Safety and towing tech is extensive, including features like a surround-view camera system, Transparent Trailer View, Trailer Side Blind Zone Alert, adaptive cruise control with trailering, and automatic emergency braking.
With its bold design, upscale interior, and immense capability, the 2024 Sierra 2500 HD Denali Ultimate stands out as one of the most refined and powerful heavy-duty trucks on the market today.