In addition to its brute strength, the 2025 GMC Sierra HD features many impressive highlights that make it the go-to choice for Las Vegas pickup truck buyers. These include advanced assistance technology, impressive off-road capabilities, and a luxurious cabin.
Powerful V8 Options
The Sierra HD features two engine options: a 6.6L gas V8 and a Duramax 6.6L Turbo-Diesel V8. The gas engine comes standard, producing 401 horsepower and 464 lb-ft of torque. While it’s an excellent choice for hauling and everyday driving, the available diesel V8 is the right choice for heavy-duty trailering. This powerplant churns out 470 horsepower and 975 lb-ft of torque, enabling the Sierra 2500 HD to tow 21,870 lbs and the Sierra 3500 HD to tow 36,000 lbs.
Allison Transmission
Both gas and diesel V8 engines come linked to an electronically controlled Allison 10-speed automatic transmission. The Allison transmission is especially popular for its smooth power delivery and driver-friendly operation in heavy-duty trucks. It offers a dedicated Tow/Haul mode, which reduces shift cycling for smoother power delivery when handling heavy loads. The transmission also features Auto Grade Braking, which automates downshifting and enables engine braking, reducing reliance on the brake pedal.
Impressive Off-Road Performance
For answering work calls from deep within nature, the Sierra HD lineup features two off-road trims. The AT4’s off-road suspension, Rancho shocks, skid plates, and BFGoodrich off-road tires help you tackle most rugged trails around Las Vegas with confidence. If you are looking for more extreme off-road capabilities, the AT4X, which is only available for the Sierra 2500 HD, is the right choice. It comes with a 1.5-inch suspension lift, Multimatic DSSV dampers, a rear electronic-locking differential, and much more.
Luxurious Interior
Passengers inside the Sierra HD are treated to a comfortable ride. Depending on the trim level, the pickup truck can feature perforated leather seats with 10-way power adjustment, heating, and ventilation for the front row and heating for the rear row. Dual-zone automatic climate control, which is standard in all trim levels above SLT, enables the driver and front passenger to set their own temperatures. Other luxuries occupants enjoy include a 13.4-inch center touchscreen and a Bose premium sound system.
Modern Assistance Technology
An array of technologies makes driving the Sierra HD safe and convenient. Some of the standard safety and driver assistance features are emergency automatic braking, forward collision alert, and lane departure warning. Buyers can upgrade the truck’s tech suite with available adaptive cruise control, trailer side blind zone alert, and front and rear park assist.
If you are shopping for a V8-powered pickup with a luxurious cabin, you can’t go wrong with the GMC Sierra HD. Reach out to us at AutoNation Buick GMC West Sahara in Las Vegas, NV to learn more about this heavy-duty truck’s features and capabilities.
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