The GMC Sierra 2500HD/3500HD were the first "heavy-duty" trucks to offer an Adaptive Cruise Control (ACC), a Forward Collision Warning System (FCWS), and a Lane Departure Warning System (LDWS) available together as part of the available Driver Assist Package. The Driver Assist Package was standard equipment on the GMC Sierra 2500HD/3500HD Denali, and optional on most other Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD models. Other new options for the Silverado and Sierra 2500HD/3500HD models included an eight-inch, full-color, reconfigurable LCD Driver Information Center (DIC) screen (for Sierra 2500HD/3500HD Denali models only), a 110-Volt AC household-style power outlet, up to six available USB ports, an available eight-inch touchscreen infotainment system, and a power-sliding rear window with integrated defroster