The 2025 GMC Sierra 3500HD AT4 in Sterling Metallic Silver stands ready to handle whatever demands you place on it. This diesel-powered heavy-duty truck combines capability with refined comfort, delivering the performance and features you need for work or adventure.- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque- Apple CarPlay & Android Auto integration- Heated and cooled leather seats with heated steering wheel- Surround View Camera system- Gooseneck/5th Wheel Prep Package for serious towing- AT4 Preferred Package with universal home remote- Remote Start and keyless entry- Multi-zone automatic climate control- Touchscreen infotainment with premium sound system- Off-Road suspension with active transfer case- 20-inch high-gloss black aluminum wheels- Engine block heater for reliable cold-weather starts- Spray-on bedliner with GMC logoThe Sierra 3500HD AT4 delivers serious capability with its Duramax turbodiesel engine, which produces 975 lb-ft of torque for commanding towing and hauling performance. The 10-speed automatic transmission ensures smooth power delivery across varied conditions, while the 4WD system and off-road suspension provide confidence on any terrain. Whether navigating job sites or remote landscapes, this truck maintains composure and control.Inside the spacious cab, you'll find heated and ventilated leather seats, a heated steering wheel, and multi-zone climate control that keeps all occupants comfortable regardless of weather. The premium Bose sound system delivers clear audio, while Apple CarPlay and Android Auto keep you connected and in control. The 13.4-inch information display provides essential truck data at a glance, and wireless charging keeps devices powered throughout the day.Convenience features define the ownership experience. Remote Start means the cab is warm and ready before you climb in. The universal home remote operates your garage, gates, or other compatible devices. Surround View Camera technology eliminates guesswork when maneuvering in tight spaces, while the gooseneck prep package positions you for serious towing applications. Power windows, locks, steering wheel audio controls, and keyless entry simplify daily operation.126 Point Inspection, Roadside Assistance, Warranty Deductible: $0, Vehicle History, All warranty repairs include parts, labor, & towing to the nearest CarBravo dealership [if necessary]. Should your vehicle need warranty repair, your CarBravo dealer will make sure you have alternative transporation. Earn points from GM Rewards when you buy a CarBravo vehicle, redeemable towards GM Certified Service, eligible accessories & more. You must sign up or be a GM Rewards member at the time of the vehicle delivery to earn points, see dealer for details. Get a 1-month trial of OnStar safety services like Automatic Crash Response & Roadside Assistance. Get 165+ channels in the car plus access to 350+ channels on the SiriusXM app.A clean Carfax with no accidents demonstrates this Sierra's careful service history. The GMC CarBravo Certified designation assures you of thorough inspection and warranty protection. This truck represents solid value for buyers seeking proven diesel performance with contemporary comfort and technology.The 2025 Sierra 3500HD AT4 awaits inspection at our showroom. Contact us to schedule a time to experience its commanding presence and refined capabilities firsthand.