Jun 27, 2025

When it comes to heavy-duty performance, the 2025 GMC Sierra HD lineup sets the benchmark. Whether you’re hauling equipment, towing a trailer, or navigating tough terrain, the Sierra 2500 and Sierra 3500 HD deliver unmatched capability, cutting-edge tech, and advanced safety systems. Here are five key reasons drivers across Texas are upgrading to this powerhouse pickup.

2025 GMC Sierra HD

1. Dual 6.6L Powertrain Options for Maximum Muscle

Choose your level of strength with two high-output engines:

  • Standard 6.6L V8 Gas Engine: Delivers 401 horsepower and 464 lb-ft of torque—ideal for everyday hauling and worksite demands.
  • Available 6.6L Duramax Turbo-Diesel V8: Generates a commanding 470 horsepower and 975 lb-ft of torque, with towing capacities reaching up to 36,000 lbs on properly equipped 3500 HD models.

Both engines are paired with a 10-speed Allison automatic transmission for smooth, responsive shifting under load.

2. Advanced Infotainment with Google Built-In

Stay connected and in control with GMC’s intuitive infotainment systems:

  • Standard 7-inch touchscreen with Apple CarPlay®, Android Auto™, Bluetooth®, and AM/FM radio
  • Available 13.4-inch Premium Infotainment Display on SLE and higher trims, featuring Google Built-In for voice-activated navigation, apps, and scheduling

Whether you’re commuting or on the job, the Sierra HD keeps your digital life within reach.

3. ProGrade Trailering System for Confident Towing

Every Sierra HD comes equipped with GMC’s Trailering Package, designed to simplify and secure your towing experience:

  • Integrated trailer brake controller
  • Hitch Guidance with rearview camera overlay
  • 2.5-inch receiver hitch with 4-pin and 7-pin connectors
  • 7-wire electrical harness for seamless trailer integration

Optional upgrades include up to 14 camera views, Transparent Trailer View, and a dedicated in-vehicle trailering app.

4. MultiPro Tailgate: Six Functions, Endless Utility

The available MultiPro Tailgate transforms how you load, access, and work from your truck bed:

  • Configurable as a step, load stop, workstation, and more
  • Offers easier access to cargo and supports up to 375 lbs
  • Standard on SLT and higher trims, available on PRO and SLE models

It’s more than a tailgate—it’s a productivity tool built into your truck.

5. Sierra HD Pro Safety: Smart Protection on Every Drive

GMC’s Sierra HD Pro Safety Package provides a suite of driver-assistance features to help prevent accidents before they happen:

  • Forward Collision Alert
  • Lane Departure Warning
  • Front Pedestrian Braking
  • Automatic Emergency Braking
  • IntelliBeam® auto high beams
  • Buckle to Drive and Following Distance Indicator

These systems use radar and cameras to monitor your surroundings and respond to potential hazards in real time.


Experience the 2025 Sierra HD in Gatesville, TX

Ready to take command of a truck that blends brute strength with refined technology? Visit Spur Chevrolet GMC in Gatesville, TX, to test drive the Sierra 2500 or 3500 HD and explore available trims, packages, and exclusive offers.

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