Sierra 1500 Trim Levels

Research: New GMC Sierra 1500 Trim Levels

The 2025 Sierra 1500 enters its final two years with subtle yet thoughtful tweaks. While maintaining its familiar lineup, from Pro through Denali Ultimate, the model introduces fresh styling updates, including unique grille designs for the Denali and AT4X trims and refreshed lighting signatures across select models. New 22‑inch wheel options also arrive, helping refresh the truck's presence on the road. Exterior colors have been trimmed slightly, with Dynamic Blue Metallic and Deep Bronze Metallic discontinued for 2025. Learn more about the 2025 Sierra 1500 from O'Fallon Buick GMC near Troy and St Charles below! 

Stepping up to the SLE and Elevation trims, you'll find additional features and upgrades. It offers a similar engine, producing 310 horsepower, but comes available in a Duramax Turbo-Diesel Engine with upwards of 500 pounds of torque. The SLE and Elevation includes larger 17-inch wheels, a more advanced infotainment system with an 8-inch touchscreen, and additional USB ports for charging devices. It also introduces features like remote keyless entry, a Wi-Fi hotspot, and a trailering package, making it well-suited for towing and hauling tasks. By upgrading to the Elevation model, you can expect better choices in wheels, colors, and monochromatic features. The SLE starts at a modest $50,300 while the Elevation starts around $52,000.

Powertrain & Performance Refinements

Under the hood, 2025 brings no new engines but introduces tuning enhancements for smoother throttle response and more responsive shift mapping-improving the overall driving feel. The familiar lineup remains in place: the TurboMax 2.7L Turbo I4, 5.3L and 6.2L EcoTec3 V8s, and the Duramax 3.0L I6 Turbo-Diesel. These engines continue to deliver best‑in‑class torque and impressive towing capabilities-capped at 13,200 lbs for the diesel-powered models in 4WD.

Interior & Tech Upgrades

Inside, the Sierra delivers noticeable interior upgrades. The center stack now features an available 13.4‑inch touchscreen with integrated Google apps and seamless wireless Apple CarPlay/Android Auto support. The driver display has grown to 12.3 inches, and a 15‑inch head‑up display is now available, all contributing to over 40 inches of combined digital displays-claiming to be the most in its class. GMC has also refined cabin materials and contrast stitching, especially on Denali and AT4X trims, and has improved noise insulation for a quieter ride.

Off‑Road & AT4X Enhancements

The AT4X model continues to be the off‑road pinnacle. The 2025 AT4X returns with enhancements including updated skid plates, front and rear electronic locking differentials (unique in its class), and AEV-certified off‑road hardware like stamped steel bumpers, winch provisions, and tough wheels-all available via the AEV Edition package. Under its hood, the standard 3.0L Duramax diesel delivers 305 hp and 495 lb‑ft of torque, yielding a solid 19 MPG combined.

These upgrades make the 2025 Sierra a polished continuation of its already strong reputation, with thoughtful refinements rather than sweeping change. Happy to expand further or include trim-specific bullet points!