Why Buy from Alpine Buick GMC? When you choose this 2020 GMC Sierra 2500HD Denali from Alpine Buick GMC, youre not just buying a used car youre investing in quality, reliability, and peace of mind. Located in Littleton,CO, were proud to offer the best selection of top-tier used cars in our local area. Heres why savvy buyers trust us: Transparent Pricing: At , what you see is what you pay. Certified Quality: Every vehicle, like this 2020 GMC Sierra 2500HD Denali, undergoes a rigorous multi-point inspection to ensure it meets our high standards. Customer-First Service: Our award-winning team treats you like family, backed by an excellent customer satisfaction rating. OTHER NOTABLE FEATURES AND OPTIONS YOU SHOULD KNOW ABOUT: Technology PackageKeyless Open and StartRear Camera MirrorMulticolor 15" Diagonal Head-Up DisplayBed View CameraHD Surround Vision with 2 Trailer View Camera ProvisionsDenali Ultimate Package ($2,370 value)Power SunroofPreferred Equipment Group 5SAPower Sliding Rear Window with DefoggerPower Front Passenger Windows with Express Up/downPower Rear Windows with Express DownDeep-Tinted GlassKeyless Open and StartPower Door LocksPower Windows with Driver Express Up/downRear Wheelhouse LinersRemote Vehicle Starter System6" Rectangular Chromed Tubular Assist StepsElectric Rear-Window DefoggerSpray-On Pickup Box Bed Liner with Denali LogoCompass Located in Instrument ClusterFloor-Mounted Center ConsoleSignature Denali GrilleSafety Alert SeatPremium GMC Infotainment System Radio with NavigationIntegrated Trailer Brake ControllerWireless ChargingHeated Driver and Front Outboard Passenger SeatsHeated 2nd Row Outboard Seats120-Volt Bed Mounted Power Outlet120-Volt Instrument Panel Power Outlet12-Volt Rear Auxiliary Power OutletHeated and Ventilated Front Bucket Seats2 USB Ports2 USB Ports (1st Row)Electrical Lock Control Steering ColumnManual Tilt-Wheel/telescoping Steering Column2-Speed Active Transfer CaseDriver Alert Package IIDriver Alert Package IProGrade Trailering SystemLED Smoked Amber Roof Marker LampsOnStar and GMC Connected Services CapableLED Cargo Area LightingUniversal Home RemoteSteering Wheel Audio Controls2nd Row Dual USB Charge-Only PortsUnauthorized Entry Theft-Deterrent SystemHD Rear Vision CameraChrome Recovery HooksPolished Exhaust TipX31 Off-Road PackageGooseneck/5th Wheel Package ($545 value)Gooseneck/5th Wheel Prep Package PICKUP BED, EMISSIONS, CALIFORNIA STATE REQUIREMENTS, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, GVWR, 11,350 LBS. (5148 KG), REAR AXLE, 3.42 RATIO, SEATS, FRONT BUCKET, JET BLACK, FORGE PERFORATED LEATHER-APPOINTED SEAT TRIM, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8" DIAGONAL COLOR TOUCH-SCREEN, DENALI ULTIMATE PACKAGE, TECHNOLOGY PACKAGE, GOOSENECK / 5TH WHEEL PACKAGE, ENGINE BLOCK HEATER, ALTERNATOR, 220 AMPS, GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH., EXHAUST BRAKE, SUNROOF, POWER, WINTER GRILLE COVER, LICENSE PLATE KIT, FRONT, LPO, CONSOLE-MOUNTED SAFE, MULTICOLOR 15" DIAGONAL HEAD-UP DISPLAY, REAR CAMERA MIRROR, INSIDE REARVIEW AUTO-DIMMING WITH FULL CAMERA DISPLAY, HD SURROUND VISION WITH TWO TRAILER VIEW CAMERA PROVISIONS, BED VIEW CAMERA Safety and Security The vehicle is equipped with a system that senses, and then prepares, the vehicle and/or occupants, for an impending forward collision. The vehicle is equipped with a camera that displays an image of the area behind the vehicle on an interior display. A head-up display projects gauge (speed, RPM, etc.) information onto the inside of the windshield just below the driver's line of sight. Brake assist senses panic braking from the speed of the brake pedal's travel and applies all available power brake boost. The vehicle is equipped with sensors which compare vehicle speed to available distance to the vehicle ahead. If the speed exceeds the required distance to stop before colliding w