Discover the pinnacle of off-road capability and premium comfort in the 2026 GMC Sierra 1500 AT4. This exceptional truck is engineered to conquer any terrain while delivering a refined driving experience that will elevate your adventures. - 6.2L EcoTec3 V8 engine with 420 horsepower and 460 lb-ft of torque - Dual, sport-mode enabled active exhaust for an exhilarating sound - LT275/65R18C Goodyear Wrangler Territory MT off-road tires - Preferred Equipment Group 4SB and Trailering Package Elevate your driving experience with premium features such as: - Bose 7-speaker premium sound system - SiriusXM with 360L trial subscription - Steering wheel audio controls - Electric rear-window defogger - 120-volt interior power outlet - Power front and rear windows with express up/down - Push-button start and remote vehicle starter Tackle any challenge with confidence thanks to the AT4's off-road-focused capabilities: - Auto-locking rear differential - Off-road suspension - Power rake and telescoping steering column - 220-amp alternator and heavy-duty air filter - Black chrome grille insert bars and LED cargo area lighting - Spray-on bedliner with GMC logo - Rear wheelhouse liners Elevate your driving experience with cutting-edge technology and convenience features: - HD Surround Vision - Rear Cross Traffic Braking - Rear Pedestrian Detection - Trailer Camera Provisions - Trailer Side Blind Zone Alert - Ultrasonic Front and Rear Park Assist - Wireless charging The 2026 GMC Sierra 1500 AT4 is the ultimate expression of rugged capability and refined luxury. Experience the thrill of conquering any terrain while enjoying the comfort and convenience of a premium truck. Visit our showroom today to discover the power and versatility of the Sierra AT4.