Whether you have things to tow, haul, or need a rugged truck for serious off-roading, you can’t go wrong with a 2025 GMC Sierra HD model. From heavy-duty performance to advanced technologies, this year’s lineup is packed with bold features you’ll love.
Pro-Grade Towing and Hauling
The Sierra HD lineup comes standard with a 6.6L V8 gas engine that delivers pro-grade hauling power. Maximum payload capacities range between 3,788 and 7,237 lbs, depending on the configuration and trim. An available 6.6L V8 turbo-diesel engine tunes the truck for heavy-duty towing, with max trailering capacities varying from 22,390 lbs in the Sierra 2500 HD to 36,000 lbs in the Sierra 3500 HD.
Heavy-Duty Trailering Provisions
Whether you opt for the gas or the turbo-diesel engine, each Sierra HD model comes well-equipped for towing. GMC’s Trailering Package, which is standard across the lineup, includes a hitch, hitch platform, connectors, wires, and hitch guidance, to name a few. In-vehicle trailering apps are optional and allow you to enhance your truck with a trailering checklist as well as trailer maintenance reminders and security alerts.
Bold Appearance
A massive, unapologetic exterior design makes this truck perfect for those who want to stand out. Chrome front and rear bumpers and an iconic grille design create a flashy appearance. Animated LED projector headlights with integrated daytime running lights and LED turn signal indicators will make you feel more connected to the vehicle. For easier bed access, the rear bumper integrates a CornerStep.
Upscale Comfort
The Sierra HD is available in a range of cab varieties, but they all provide premium comfort. In the three- and six-passenger configurations, the spacious front bench includes under-seat storage. Five-passenger configurations with front bucket seats and rear under-seat storage are also available, so you can easily customize the cabin to suit your needs. Upholstery materials vary from heavy-duty vinyl and cloth to luxurious leather.
Advanced Tech Features
Built for commercial and other heavy-duty applications, this truck also comes with an advanced infotainment system. The seven-inch center touchscreen provides access to Bluetooth phone control and audio streaming, as well as next-gen smartphone integration with Apple CarPlay and Android Auto. Each trim also includes Wi-Fi hotspot capability, so you can keep your crew connected and entertained.
Smart Driver Assistance
All Sierra 2500 HD models come standard with the Sierra HD Pro Safety Package, a suite of driver assistance technologies that includes a wide range of anti-collision and lane management features. Front pedestrian braking and automatic emergency braking can also keep you nearly worry-free behind the wheel. The Sierra 3500 HD models come with the Pro Safety Plus Package, which adds trailer coverage and rear cross traffic alerts, among others.
Ready to schedule your test drive? Contact us today at Sommer’s Buick GMC in Mequon, WI.
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