Sierra 3500 4WD Crew CabLAMPS SMOKED AMBER LED ROOF MARKER (LED), HIGH IDLE SWITCH, UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at [Link Removed] SLT PREFERRED EQUIPMENT GROUP includes standard equipment, ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (445 hp [332 kW] @ 2800 rpm 910 lb-ft of torque [1220 Nm] @ 1600 rpm) (Includes (K05) engine block heater.), BED LINER SPRAY-ON Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel), CAYENNE RED TINTCOAT, GOOSENECK / 5TH WHEEL PACKAGE includes (Z6A) Gooseneck / 5th Wheel Prep Package. (Includes (CGN) spray-on bed liner and (UVN) Bed View Camera., JET BLACK PERFORATED LEATHER-APPOINTED FRONT OUTBOARD SEATING POSITIONS, X31 OFF-ROAD PACKAGE includes (JHD) Hill Descent Control (NZZ) skid plates Off-Road suspension Twin-tube Rancho shocks and X31 hard badge, Bluetooth Connection, Power Steering, ABS, Locking/Limited Slip Differential, Running Boards/Side Steps, Tow Hitch, Four Wheel Drive, Tow Hooks, 4-Wheel Disc Brakes, Requires Subscription, Satellite Radio, Power Windows, Heated Steering Wheel, Auxiliary Audio Input, Daytime Running Lights, Tires - Rear All-Terrain, Mirror Memory, Power Outlet, Seat Memory, Stability Control, Privacy Glass, Conventional Spare Tire, A/C, Power Passenger Seat, Satellite Radio, Climate Control, Split Bench Seat, Adjustable Steering Wheel, Power Door Locks, Driver Adjustable Lumbar, Smart Device Integration, Back-Up Camera, Requires Subscription, Power Driver Seat, Heated Front Seat(s), WiFi Hotspot, HD Radio, Multi-Zone A/C, Rear Head Air Bag, Front Side Air Bag, Leather Steering Wheel, Fog Lamps, Power Mirror(s), Bluetooth Connection, Telematics, Floor Mats, Heated Mirrors, Bluetooth Connection, Power Folding Mirrors, Passenger Air Bag Sensor, Power Door Locks, Rear Defrost, Power Outlet, Rear Bench Seat, Front Head Air Bag, Steering Wheel Audio Controls, Daytime Running Lights, Auto-Dimming Rearview Mirror, Remote Engine Start, Smart Device Integration, AM/FM Stereo, Auxiliary Audio Input, Security System, Driver Restriction Features, Power Windows, Keyless Entry, Floor Mats, Leather Seats, Driver Air Bag, Integrated Turn Signal Mirrors, Pass-Through Rear Seat, Tires - Front All-Terrain, Passenger Adjustable Lumbar, Aluminum Wheels, Tire Pressure Monitor, Cruise Control, Passenger Air Bag, Traction Control, Keyless Start, Requires Subscription, Integrated Tailgate Step, MP3 Capability