Sierra 2500 4WD Crew CabENGINE 6.6L V8 with Direct Injection and Variable Valve Timing gasoline (401 hp [299 kW] @ 5200 rpm 464 lb-ft of torque [629 N-m] @ 4000 rpm) (STD), Tow Hooks, Locking/Limited Slip Differential, Running Boards/Side Steps, Tow Hitch, Four Wheel Drive, Power Steering, Smart Device Integration, Daytime Running Lights, Aluminum Wheels, Requires Subscription, Fog Lamps, Integrated Turn Signal Mirrors, MP3 Player, AM/FM Stereo, 4-Wheel Disc Brakes, Satellite Radio, Conventional Spare Tire, Bluetooth Connection, Tires - Front All-Terrain, Auxiliary Audio Input, Privacy Glass, Bluetooth Connection, Tires - Rear All-Terrain, Power Mirror(s), Heated Mirrors, Power Folding Mirrors, ABS, Driver Adjustable Lumbar, WiFi Hotspot, Power Driver Seat, Bluetooth Connection, Auxiliary Audio Input, Requires Subscription, Passenger Adjustable Lumbar, Split Bench Seat, Power Passenger Seat, Smart Device Integration, Satellite Radio, Leather Seats, Heated Steering Wheel, Power Outlet, Leather Steering Wheel, Power Windows, Floor Mats, Seat Memory, Mirror Memory, Pass-Through Rear Seat, Floor Mats, Rear Bench Seat, MP3 Player, Steering Wheel Audio Controls, Back-Up Camera, Back-Up Camera, Remote Engine Start, Keyless Start, Climate Control, A/C, Front Head Air Bag, Tire Pressure Monitor, Rear Defrost, Power Windows, Passenger Air Bag, Security System, Power Windows, Telematics, Power Door Locks, Keyless Entry, Multi-Zone A/C, Passenger Air Bag Sensor, Adjustable Steering Wheel, Requires Subscription, Power Door Locks, Front Side Air Bag, Auxiliary Audio Input, Power Outlet, Driver Restriction Features, Stability Control, Auto-Dimming Rearview Mirror, Driver Air Bag, Daytime Running Lights, Traction Control, Rear Head Air Bag, Cruise Control