2025 GMC Sierra 2500 Model Review

Performance

Powertrain choices in the GMC Sierra 2500 start with a 6.6-liter V8 that can develop 401 horsepower and 464 pound-feet of torque. It's matched up with a 10-speed automatic transmission and you can move up to a Duramax^® turbodiesel V8 with 445 horsepower.

An available 6.6-liter turbocharged diesel V8 engine is another great option, deploying 470 horsepower and 975 pound-feet of torque. Reno, PA buyers will like the fact that the trail-focused AT4 model and AT4X are equipped with an off-road suspension system and a locking rear differential. Stop by our finance center to get help securing the best available interest rate on a new vehicle loan.

Towing and Hauling

The maximum towing capacity for most 2025 GMC Sierra 2500HD models is 14,500 pounds but you can reach as high as 22,500 pounds on dually diesel models equipped with GMC's Max Tailering package. The maximum payload ranges from 3,381 pounds to 3850 pounds depending on the configuration. The GMC Sierra 2500 HD with the diesel engine can reach a zero-to-60-mph time in a surprisingly strong 6.5 seconds and it will hit the quarter-mile in 15.0 seconds.

Technology

The 2025 GMC Sierra 2500HD operates with a standard 8.0-inch touchscreen as well as a set of rotary knobs and physical buttons that are easy to use. You can elevate to a massive 13.4-inch infotainment touch screen with features like Google built-in, wireless smartphone connectivity for Apple and Android and split-screen navigation. Other available technology includes satellite radio, a premium Bose audio system and even a rear seat entertainment system.

Interior

The 2025 GMC Sierra 2500 HD has an enormous dashboard with a collection of user-friendly switchgear. Most models come with a split-folding front bench that can be replaced by a pair of bucket seats and a full center console. The interior can be upgraded with a heated and ventilated front seats along with a wireless phone charging pad and a head-up display. The interior of the Denali Ultimate comes with leather-wrapped interior pieces, a soft micro-suede headliner and Paldao wood trim pieces.

The Sierra 2500HD also has a versatile cargo bed with an available MultiPro Tailgate, which includes six helpful functions to make loading and unloading easier. With its well-designed interior and practical features, the Sierra 2500HD is an awesome working partner on big-time jobs.