Experience The Diamond Difference. If you're looking for a vehicle that delivers on performance, utility, comfort, or value, this 2018 GMC Sierra 3500HD Denali may be just the ticket... Vehicle Highlights: Driver Alert PackageForward Collision AlertLane Departure WarningDuramax Plus Package ($8,895 value)Duramax 6.6L Turbo-Diesel V8 EngineAllison 1000 6-Speed Automatic Transmission with OverdriveChrome Recovery HooksPreferred Equipment Group 5SAPower WindowsPower Sliding Rear Window with DefoggerRear 60/40 Folding Bench Seat (folds Up)Remote Locking TailgateDeep-Tinted GlassFront Full Feature Bucket SeatsRemote Keyless EntryRear Wheelhouse LinersColor-Keyed Carpeting Floor CoveringColor-Keyed Carpeted 1st and 2nd Row Floor MatsChrome Bodyside MoldingsRemote Vehicle Starter SystemElectric Rear-Window DefoggerDual-Zone Automatic Climate ControlAuto-Dimming Inside Rearview MirrorDriver and Front Passenger VisorsChrome Power-Adjustable Heated Outside MirrorsChrome Door HandlesAM/FM/SiriusXM Radio with GMC Infotainment and NavigationPower Adjustable Pedals150 Amps Alternator110-Volt AC Power OutletHeated and Ventilated Front SeatingManual Tilt-Wheel/telescoping Steering ColumnElectronic Shift Transfer CaseEZ-Lift and Lower Tailgate18" Chromed Aluminum WheelsPerforated Leather-Appointed Seat TrimFront Halogen Fog LampsSingle-Slot CD/MP3 PlayerHD RadioUltrasonic Front and Rear Park AssistOnStar and GMC Connected Services CapableUniversal Home Remote8" Multi-Color Customizable Driver DisplaySteering Wheel Audio ControlsUnauthorized Entry Theft-Deterrent SystemRear Vision CameraLeather Wrapped Heated Steering WheelFront Frame-Mounted Black Recovery HooksFront Body-Color BumperRear Body-Color Bumper with Bumper CornerstepsGMC 4G LTEDriver Alert PackageTrailering EquipmentSpare LT265/70R18E AS BW Tire Convenience Cruise control with steering wheel mounted controls. Set it and forget it. Road trips used to be stressful, until cruise control set the pace. Simply set the desired speed using the steering wheel mounted controls and it will maintain that speed without driver intervention. This can help minimize driver fatigue and improve overall fuel economy. Resting your right foot is right at your fingertips thanks to cruise control with steering wheel mounted controls.Safety and Security Rear camera - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. The rear camera is an extra set of eyes that's both convenient and safe. Brake assist - Stop right there. Something jumps out into the middle of the road and you need to stop now! With brake assist, you will. It uses the speed of the brake pedals travel to sense panic braking, then applies all available power to boost your stopping power. Brake assist can stop the accident before it is one.Technology and Telematics Smart device mirroring - Smartphone, meet smart car. You can control your device through your vehicle's infotainment system. Smart device mirroring brings together safety and convenience by making it easier to find what you're looking for while keeping your eyes on the road. Mobile hotspot - WiFi on the fly. Connect your devices to the Internet through your vehicles private mobile hotspot and take the internet wherever your journey takes you, without eating up your data allowance. Find the hotspot with mobile hotspot. Other Options/Features GVWR, 11,500 LBS. (5216 KG) WITH SINGLE REAR WHEELS, SUSPENSION PACKAGE, OFF-ROAD, EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, TRANSMISSION, ALLISON 1000 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED, REAR AXLE, 3.73 RATIO, TIRES, LT265/70R18E ALL-TERRAIN, BLACKWALL, PAINT, SOLID, ONYX BLACK, SEATS, FRONT FULL-FEATURE LEATHER-APPOINTED BUCKET WITH (KA1) HEATED SEAT CUSHIONS AND SEAT BACKS., COCOA/DARK SAND, PERFORATED LEATHER-APPOINTED FRONT SEAT TRIM, AUDIO SYSTEM, 8" DIAGONAL COLOR TOUCH SCREEN NAVIGATIO