, EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, TRANSMISSION, 10-SPEED AUTOMATIC, GVWR, 11,350 LBS. (5148 KG), REAR AXLE, 3.42 RATIO, WHEELS, 20 (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS, TIRES, LT275/65R20 ALL-TERRAIN, BLACKWALL, STERLING METALLIC, SEATS, FRONT BUCKET, JET BLACK WITH KALAHARI ACCENTS, PERFORATED FRONT LEATHER SEAT TRIM, AUDIO SYSTEM, 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE, AT4 PREMIUM PLUS PACKAGE, TECHNOLOGY PACKAGE, AT4 PREFERRED PACKAGE, SNOW PLOW PREP/CAMPER PACKAGE, ENGINE BLOCK HEATER, ALTERNATOR, 220 AMP, GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH., EXHAUST BRAKE, SUNROOF, POWER, ASSIST STEPS, POWER RETRACTABLE, BLACK, WINTER GRILLE COVER, LAMPS, SMOKED AMBER ROOF MARKER, (LED), LICENSE PLATE KIT, FRONT, INCANDESCENT LIGHTING, MULTICOLOR 15 DIAGONAL HEAD-UP DISPLAY, WINDOW, POWER, REAR SLIDING WITH REAR DEFOGGER, UNIVERSAL HOME REMOTE, REAR CAMERA MIRROR, Here’s why savvy buyers trust us:Certified Quality: Every vehicle, like this 2026 GMC Sierra 2500HD AT4, 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:AT4 Premium Plus Package ($5,035 value)Power-Retractable Black Assist StepsPower SunroofTechnology PackagePreferred Equipment Group 4SBSiriusXM with 360L Trial SubscriptionPower Front Passenger Windows with Express Up/downDeep-Tinted GlassKeyless Open and StartRear Wheelhouse LinersRear Premium Floor Liners with Removable Carpet InsertFront Premium Floor Liners with Removable Carpet InsertPush Button StartRemote Vehicle Starter SystemElectric Rear-Window DefoggerFront Rain-Sensing WipersSpray-On Pickup Bedliner with GMC LogoFloor-Mounted Center ConsoleGloss Black Header Grille and Grille Insert BarsSafety Alert SeatWireless ChargingHeated Driver and Front Outboard Passenger SeatsHeated 2nd Row Outboard Seats120-Volt Bed Mounted Power Outlet120-Volt Instrument Panel Power OutletVentilated Driver and Front Passenger SeatsManual Tilt-Wheel/telescoping Steering Column2-Speed Active Transfer CaseSierra HD Pro SafetyWireless Phone ProjectionProGrade Trailering SystemTrailer Cam Provisions and Trailer Viewing Software2 Charge/data USB Ports Inside Center Console2 USB Ports2 Charge-Only Rear USB PortsUltrasonic Front and Rear Park AssistOnStar Services CapableLED Cargo Area LightingRear Cross Traffic AlertSteering Wheel Audio ControlsTrailer Side Blind Zone AlertBose Premium 7-Speaker Sound SystemUnauthorized Entry Theft-Deterrent SystemHD Surround VisionBed View Camera with Two Trailer Camera ProvisionsX31 Off-Road PackageAT4 Preferred PackagePower Sliding Rear Window with DefoggerLED Smoked Amber Roof Marker LampsUniversal Home RemoteSnow Plow Prep/camper Package ($530 value)220-Amp AlternatorSkid Plates A Better Way to Buy at Holiday AutomotiveAt Holiday, we believe buying a vehicle should be straightforward. Our Simplified Price takes the guesswork out of negotiations, and our non-commissioned Guest Experience Managers are here to help you find the right truck without the pressure.Come see why buying a vehicle at Holiday is Worth the Trip.Call Now Toll Free! 1-(866) 875-3224. Check out our Full inventory at www.holidayautomotive.com. Holiday Automotive in Fond du Lac, Wisconsin has been a family owned and operated dealership since 1959. We are located at HWY 41 and HWY 23 at Exit 99. We are pleased to offer ON THE SPOT FINANCING. BAD CREDIT OR GOOD CREDIT, we work with over 20 banks to get you APPROVED AT THE MOST COMPETITIVE RATES. We provide AIRPORT TRANSPORTATION and NATIONWIDE DELIVERY OPTIONS. At Holiday Automotive we are worth the trip!While every reasonable effort is made to ensure the accuracy of these data, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with a dealership sales representative.