Sierra Denali 4WD Crew CATECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15 Diagonal Head-Up Display, TRANSMISSION ALLISON 10-SPEED AUTOMATIC, DENALI PREFERRED EQUIPMENT GROUP includes standard equipment, DENALI ULTIMATE PACKAGE includes (CWM) Technology Package and (CF5) power sunroof, DARK WALNUT/DARK ASH GREY FORGE PERFORATED LEATHER-APPOINTED SEAT TRIM, HIGH IDLE SWITCH, AUDIO SYSTEM PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8 DIAGONAL COLOUR TOUCH-SCREEN includes multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones advanced voice recognition in-vehicle apps personalized profiles for infotainment and vehicle settings. Includes greater memory. (STD) (Includes (PZ8) Hitch Guidance with hitch view.), 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.), GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness)., WHITE FROST TRICOAT, SUNROOF POWER, WHEELS 20 (50.8 CM) MULTI-DIMENSIONAL POLISHED ALUMINUM (STD), REAR AXLE 3.42 RATIO, Blind Spot Monitor, Tow Hitch, Lane Departure Warning, Rear Parking Aid, Lane Departure Warning, Cross-Traffic Alert, Power Outlet, Heated Front Seat(s), Satellite Radio, Requires Subscription, Power Windows, Bluetooth Connection, Daytime Running Lights, WiFi Hotspot, Power Steering, Bucket Seats, Pass-Through Rear Seat, HD Radio, Premium Sound System, Power Windows, Traction Control, Floor Mats, Mirror Memory, Tires - Front All-Terrain, Rear Head Air Bag, ABS, Adjustable Steering Wheel, Bluetooth Connection, Navigation System, Tires - Rear All-Terrain, Locking/Limited Slip Differential, Passenger Adjustable Lumbar, Blind Spot Monitor, Floor Mats, Cooled Front Seat(s), Driver Restriction Features, Cruise Control, Power Driver Seat, Bluetooth Connection, Tire Pressure Monitor, Lane Departure Warning, Privacy Glass, Seat Memory, Steering Wheel Audio Controls, Power Mirror(s), Security System, Requires Subscription, Auxiliary Audio Input, Running Boards/Side Steps, Front Head Air Bag, Front Side Air Bag, Climate Control, Heated Front Seat(s), Aluminum Wheels, Passenger Air Bag Sensor, Stability Control, Driver Adjustable Lumbar, A/C, Integrated Turn Signal Mirrors, Running Boards/Side Steps, Telematics, Daytime Running Lights, 4-Wheel Disc Brakes, Power Windows, Power Outlet, Leather Steering Wheel, Back-Up Camera, Rear Parking Aid, Leather Seats, Conventional Spare Tire, Heated Mirrors, Auxiliary Audio Input, Power Passenger Seat, Four Wheel Drive, Power Door Locks, Universal Garage Door Opener, Heated Steering Wheel, Cross-Traffic Alert, Smart Device Integration, Auxiliary Audio Input, Heated Rear Seat(s), Fog Lamps, Cooled Front Seat(s), Tow Hooks, Remote Engine Start, Power Folding Mirrors, Auto-Dimming Rearview Mirror, Passenger Air Bag, Multi-Zone A/C, Sliding Rear Window, Driver Air Bag, Bed Liner, Rear Defrost, Smart Device Integration, Power Door Locks, Satellite Radio, AM/FM Stereo, Heated Front Seat(s), Keyless Entry, Keyless Start, Rear Defrost, Requires Subscription, Automatic Highbeams, Front Collision Mitigation, Front Collision Mitigation, Aerial View Display System, Front Collision Warning, Front Collision Warning, Front Collision Warning, Automatic Highbeams, Integrated Tailgate Step, MP3 Capability, MP3 Capability, MP3 Capability