ASSIST STEPS, CHROME, WHEEL TO WHEEL (Not available with any LPO assist steps.) ,CHEVYTEC SPRAY-ON BEDLINER, BLACK (does not include spray-on liner on tailgate due to Black composite inner panel) (Included with (PDZ) Z71 Off-Road and Protection Package. Available with Ship Thru codes (A6T), (TW3), (VCO), (VDT), (VI1), (VDJ), (VKZ), (VYC), (VYS), (WEZ) or (TFA).) ,AUDIO SYSTEM, CHEVROLET INFOTAINMENT 3 PREMIUM SYSTEM with Google built-in compatibility (select service plan required, terms and limitations apply) including navigation capability, 13.4 diagonal HD color touchscreen, includes multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring Wireless Apple CarPlay and Wireless Android Auto capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (STD) ,ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.) *GROSS* ,TRANSMISSION, 10-SPEED AUTOMATIC with Electronic Transmission Range Selector (ETRS), electronically controlled with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)