The 2019 Chevrolet Silverado 2500HD has four trims: Work Truck (WT), LT, LTZ and High Country. Work Truck trim includes 17-inch steel wheels, vinyl upholstery, a 40/20/40-split front bench seat, power door locks and windows, a rearview camera, air conditioning, cruise control. The LT trim adds 17-inch alloy wheels, heated power-adjustable mirrors, keyless entry, a remote-locking tailgate, rear privacy glass, cloth upholstery. LTZ trim includes 18-inch chrome alloy wheels, foglights, power-folding mirrors, remote engine start, dual-zone automatic climate control, an auto-dimming rearview mirror, leather upholstery, heated power-adjustable front seats. High Country comes with 20-inch wheels, all-terrain tires, side-assist steps, cargo box tie-downs, a spray-in bedliner, power-adjustable pedals, ventilated front seats, leather upholstery, a heated steering wheel, wireless phone charging, a navigation system and a Bose audio system..