2026 GMC Sierra 3500HD AT4

The 2026 GMC Sierra 3500HD AT4 is a powerhouse built for drivers who demand serious capability with a premium level of comfort. Its bold AT4 styling gives it an aggressive, confident look, while its heavy-duty performance is ready for demanding towing, hauling, and off-road adventures. Inside, the Sierra 3500HD AT4 offers a refined cabin packed with modern technology and thoughtful features designed to make every drive more comfortable. Whether you're tackling tough jobs, pulling a heavy trailer, or exploring beyond the pavement, the 2026 Sierra 3500HD AT4 delivers the strength, confidence, and versatility to take on whatever comes next.

Contact our sales department at 250-860-7700 for more information. $695 documentation fee, plus a $599 business admin fee will be charged on the purchase of all New and Pre-Owned vehicles from Bannister Cadillac Buick GMC LTD