The 2026 GMC Sierra 2500 HD offers a cabin built for comfort and control. Drivers in Jasper, IN can choose from seven trims, each with its own set of features. The base Pro trim starts with vinyl seats and a 7-inch color touchscreen with wireless Apple CarPlay and Android Auto. Moving up to the SLE and SLT trims, you get a larger 13.4-inch Premium GMC Infotainment System with Google built-in apps like navigation and voice assistance.