New 2026 Gmc Sierra 1500 AT4

The 2026 GMC Sierra 1500 AT4 at Sam Boswell Buick GMC is a full-size off-road pickup designed for rugged performance, advanced capability, and modern versatility. Powered by a strong V8 engine with available 4x4 drivetrain and off-road-tuned suspension, the Sierra 1500 AT4 delivers exceptional towing, hauling, and trail-ready performance for work, recreation, and adventure. Its bold exterior features the signature AT4 grille, LED lighting, off-road skid plates, all-terrain tires, and durable alloy wheels, giving it a commanding presence on highways, back roads, and trails. With the MultiPro tailgate, reinforced truck bed, and professional-grade trailering technology, the 2026 Sierra 1500 AT4 is built to handle heavy-duty jobs and weekend adventures with confidence. Inside, the 2026 GMC Sierra 1500 AT4 offers a rugged yet refined cabin with premium seating, a high-resolution touchscreen infotainment system, and seamless connectivity with Apple CarPlay and Android Auto. Advanced safety and driver-assist features, including forward collision alert, lane departure warning, blind-spot monitoring, and rear cross-traffic alert, provide added security and peace of mind. Combining off-road capability, modern technology, and GMC's legendary durability, the 2026 GMC Sierra 1500 AT4 at Sam Boswell Buick GMC is the ideal full-size pickup for drivers seeking strength, versatility, and comfort in one powerful truck.