Full Description: CERTIFIED BY CARFAX- NO ACCIDENTS AND ONE OWNER!, FACTORY CERTIFIED PRE-OWNED VEHICLE!, REMAINDER OF FACTORY WARRANTY STILL APPLIES!, SERVICE RECORDS AVAILABLE!, REAR VIEW BACK-UP CAMERA!, BLUETOOTH HANDS-FREE CALLING!, NAVIGATION!, WIFI!, APPLE CARPLAY / ANDROID AUTO!, HEATED AND COOLED LEATHER SEATS!, MOONROOF/SUNROOF!, LANE DEPARTURE ASSIST!, BACK UP WARNING SENSORS!, 4x4 - NEVER WORRY ABOUT THE WEATHER!, TURBO DIESEL POWER!, PREMIUM STEREO!, TOWING PACKAGE!, PREMIUM WHEELS!, 2 SETS OF SMART KEYS WITH REMOTE!, VEHICLE'S MAINTENANCE REQUIREMENTS HAVE ALL BEEN BROUGHT UP TO CURRENT!, Sierra 2500HD Denali, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, Allison 1000 6-Speed Automatic, 4WD, White Frost Tricoat, jet black Leather, Bose 7 Speaker Sound System, Driver Alert Package, Duramax Plus Package, Gooseneck/5th Wheel Prep Package, Heavy-Duty Handling/Trailering Suspension Package, Navigation System, Off-Road Suspension Package, Preferred Equipment Group 5SA, Trailering Equipment. Certified. Driver Alert Package (Forward Collision Alert and Ultrasonic Front & Rear Park Assist), Duramax Plus Package (Chrome Power-Adjustable Heated Outside Mirrors and Chrome Recovery Hooks), Gooseneck/5th Wheel Prep Package, Heavy-Duty Handling/Trailering Suspension Package, Off-Road Suspension Package (Hill Descent Control and Z71 Chrome Front Fender Emblems), Preferred Equipment Group 5SA (Bose 7 Speaker Sound System, 110-Volt AC Power Outlet, 150 Amps Alternator, 8 Multi-Color Driver Instrument Info Display, Auto-Dimming Inside Rear-View Mirror, Black Frame-Mounted Front Recovery Hooks, Body-Color Front Bumper, Chrome Bodyside Moldings, Chrome Door Handles, Color-Keyed Carpeted Floor Mats, Color-Keyed Carpeting Floor Covering, Deep-Tinted Glass, Driver & Front Passenger Vanity Mirror Visors, Dual-Zone Automatic Climate Control, Electric Rear-Window Defogger, Electronic Shift Transfer Case, Front Halogen Fog Lamps, Heated & Ventilated Front Bucket Seats, Heated Leather Wrapped Steering Wheel, Heated Power-Adjustable Outside Mirrors, Manual Tilt-Wheel/Telescoping Steering Column, Power Sliding Rear Window w/Defogger, Power-Adjustable Pedals For Accelerator & Brake, Rear 60/40 Folding Bench Seat (Folds Up), Rear Body-Color Bumper w/Bumper CornerSteps, Rear Wheelhouse Liners, Remote Keyless Entry, Remote Locking Tailgate, Remote Vehicle Starter System, Steering Wheel Audio Controls, Theft Deterrent System (Unauthorized Entry), and Universal Home Remote), Trailering Equipment (Trailer Brake Controller), OnStar & GMC Connected Services Capable (GMC 4G LTE and GMC Connected Access), Sierra 2500HD Denali, GMC Certified Pre-Owned Certified, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, Allison 1000 6-Speed Automatic, 4WD, White Frost Tricoat, jet black Leather, Navigation System, 3.73 Rear Axle Ratio, 4.10 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers BOSE SYSTEM, ABS brakes, Adjustable pedals, Air Conditioning, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Bluetooth For Phone, Bodyside moldings, Brake assist, Bumpers: body-color, CD player, Compass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, Floor Mounted Console, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Full Feature Ventilated Bucket Seats, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Garage door transmitter, HD Radio, Heated door mirrors, Heated Driver and Front Passenger Seats, Heated front seats, Heated steering wheel, High-Intensity Discharge Headlights, Illuminated entry, Low tire pressure warning, Memory seat, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door biHILL DESCENT CONTROL,ENGINE BLOCK HEATER,AUDIO SYSTEM 8" DIAGONAL COLOR TOUCH SCREEN NAVIGATION WITH GMC INFOTAINMENT SYSTEM AM/FM/SIRIUSXM HD RADIO with USB ports auxiliary jack Bluetooth streaming audio for music and most phones Pandora Internet radio and voice-activated technology for radio and phone (STD),WHEELS 20" (50.8 CM) CHROMED CAST ALUMINUM (STD),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 capped fuel fill (K40) exhaust brake and (K05) engine block heater.,GOOSENECK / 5TH WHEEL PREP PACKAGE Hitch platform to accept Gooseneck or Fifth wheel hitch. Includes Hitch platform with tray to accept ball and drilled box holes with removable caps installed box mounted 7-pin trailer harness (similar to (UY2) harness).,SUNROOF POWER,WHITE FROST TRICOAT,MIRRORS OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL TRAILERING MEMORY EQUIPPED UPPER GLASS POWER-FOLDING AND MANUAL EXTENDING CHROME Includes integrated turn signal indicators consisting of 51 square inch flat mirror surface positioned over a 24.5 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated and not power-adjustable) and addition of auxiliary cargo lamp for backing up (helps to see trailer when backing up with a trailer) and amber auxiliary clearance lamp,REAR AXLE 3.73 RATIO,TRANSMISSION ALLISON 1000 6-SPEED AUTOMATIC ELECTRONICALLY CONTROLLED with overdrive electronic engine grade braking and tow/haul mode,SEATS FRONT FULL-FEATURE LEATHER-APPOINTED BUCKET with (KA1) heated seat cushions and seat backs. Includes 12-way power driver and front passenger seat adjusters including 4-way power lumbar control 2-position driver memory adjustable head restraints (D07) floor console and storage pockets and (K4C) wireless charging (STD),GVWR 10 000 LBS. (4536 KG),LPO CHROME RECOVERY HOOKS,PAINT SOLID,JET BLACK PERFORATED LEATHER-APPOINTED SEAT TRIM,DENALI PREFERRED EQUIPMENT GROUP includes standard equipment,DURAMAX PLUS PACKAGE includes (L5P) Duramax 6.6L Turbo-Diesel V8 engine and (VQY) chrome recovery hooks LPO (MW7) Allison 1000 6-speed automatic transmission (Includes (DQS) outside memory equipped heated power-adjustable vertical trailering mirrors.),TIRES LT265/60R20E ALL-TERRAIN BLACKWALL (STD),SUSPENSION PACKAGE OFF-ROAD requires 4WD models includes twin tube Rancho brand shocks and (JHD) Hill Descent Control,EXHAUST BRAKE,Lane Departure Warning,Locking/Limited Slip Differential,Four Wheel Drive,Tow Hitch,Tow Hooks,Power Steering,ABS,4-Wheel Disc Brakes,Aluminum Wheels,Tires - Front All-Terrain,Tires - Rear All-Terrain,Running Boards/Side Steps,HID headlights,Fog Lamps,Heated Mirrors,Power Mirror(s),Integrated Turn Signal Mirrors,Power Folding Mirrors,Privacy Glass,Bed Liner,AM/FM Stereo,Navigation System,Satellite Radio,MP3 Player,Bluetooth Connection,Auxiliary Audio Input,HD Radio,CD Player,MP3 Player,Satellite Radio,Requires Subscription,HD Radio,Premium Sound System,Bluetooth Connection,WiFi Hotspot,Power Driver Seat,Power Passenger Seat,Leather Seats,Bucket Seats,Heated Front Seat(s),Driver Adjustable Lumbar,Passenger Adjustable Lumbar,Seat Memory,Leather Seats,Leather Seats,Bucket Seats,Heated Front Seat(s),Cooled Front Seat(s),Pass-Through Rear Seat,Rear Bench Seat,Adjustable Steering Wheel,Heated Steering Wheel,Steering Wheel Audio Controls,Floor Mats,Power Windows,Rear Defrost,Sliding Rear Window,Power Door Locks,Cruise Control,Security System,Adjustable Pedals,Remote Engine Start,Keyless Entry,Power Door Locks,Universal Garage Door Opener,Climate Control,Multi-Zone A/C,A/C,Rear Defrost,Auto-Dimming Rearview Mirror,Driver Vanity Mirror,Passenger Vanity Mirror,Driver Illuminated Vanity Mirror,Passenger Illuminated Visor Mirror,Traction Control,Stability Control,Daytime Running Lights,Driver Air Bag,Passenger Air Bag,Front Side Air Bag,Front Head Air Bag,Rear Head Air Bag,Rear Parking Aid,Back-Up Camera,Lane Departure Warning,Tire Pressure Monitor,Driver Restriction Features,Telematics