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Thunderstorm Gray! 2025 GMC Sierra 2500HD AT4 for sale St Augustine FL AT4 4D Crew Cab Duramax 6.6L V8 Turbodiesel 10-Speed Automatic 4WD Thunderstorm Gray Jet Black With Kalahari Accents Leather 10-Way Power Driver Seat Adjuster wLumbar 10-Way Power Passenger Seat Adjuster wLumbar AMFM radio: SiriusXM with 360L AT4 Preferred Package AT4 Premium Plus Package Bed View Camera w2 Trailer Camera Provisions Bose Premium 7-Speaker Sound System Deep-Tinted Glass Floor-Mounted Center Console Front Prem Floor Liners wRemovable Carpet Insert Front Rain-Sensing Wipers Gloss Black Header Grille & Grille Insert Bars Gooseneck5th Wheel Prep Package HD Surround Vision Heated 2nd Row Outboard Seats Heated Driver & Front Outboard Passenger Seats Hitch Guidance wHitch View In-Vehicle Trailering System App Inside Rearview Auto-Dimming Rear Camera Mirror Lane Departure Warning System LED Cargo Area Lighting LED Smoked Amber Roof Marker Lamps Max Trailering Package Multicolor 15\" Diagonal Head-Up Display Navigation System Off-Road High Clearance Step (LPO) OnStar Services Capable Power Front Passenger Windows wExpress UpDown Power Sliding Rear Window wDefogger Power Sunroof Preferred Equipment Group 4SB Rear Cross Traffic Alert Rear Wheelhouse Liners Remote Vehicle Starter System Safety Alert Seat Security system Spray-On Pickup Bedliner wGMC Logo Technology Package Trailer Cam Provisions & Trailer Viewing Software Trailer Side Blind Zone Alert Ultrasonic Front & Rear Park Assist Universal Home Remote Ventilated Driver & Front Passenger Seats Wheels: 20\" High Gloss Black 8 Spokes Aluminum Wireless Charging Wireless Phone Projection X31 Off-Road Package.<br><br>Prices do not include tax tag title registration any dealer-installed accessories or dealer-provided benefits. Additional fees include a documentary fee of $994 and an Electronic Registration Filing Fe","additionalProperty":[{"@type":"PropertyValue","name":"feature","value":"Navigation System"},{"@type":"PropertyValue","name":"feature","value":"AT4 Preferred Package"},{"@type":"PropertyValue","name":"feature","value":"AT4 Premium Plus Package"},{"@type":"PropertyValue","name":"feature","value":"Gooseneck/5th Wheel Prep Package"},{"@type":"PropertyValue","name":"feature","value":"Max Trailering Package"},{"@type":"PropertyValue","name":"feature","value":"Preferred Equipment Group 4SB"},{"@type":"PropertyValue","name":"feature","value":"Technology Package"},{"@type":"PropertyValue","name":"feature","value":"X31 Off-Road Package"},{"@type":"PropertyValue","name":"feature","value":"7 Speakers"},{"@type":"PropertyValue","name":"feature","value":"AM/FM radio: SiriusXM with 360L"},{"@type":"PropertyValue","name":"feature","value":"Bose Premium 7-Speaker"}],"image":[{"@type":"ImageObject","url":"https://imgcdn.lotlinx.com/vdn/55224/gmc_sierra%202500%20hd_2025_1GT4UPEY0SF145598_55224_2748442934.jpg?ver=20260813","description":"2025 GMC Sierra 2500HD - Primary exterior view","representativeOfPage":true}],"seller":{"@type":"AutoDealer","name":"Jack Hanania Buick GMC","slug":"jack-hanania-buick-gmc-st-augustine-fl","telephone":null,"url":null,"address":{"@type":"PostalAddress","postalCode":"32086","addressRegion":"FL","streetAddress":"2250 U.S. Rte 1","addressCountry":"US","addressLocality":"St. Augustine"},"latitude":"29.8580000","longitude":"-81.3221000","dealerGroup":null,"aggregateRating":{"@type":"AggregateRating","ratingValue":4.4,"reviewCount":1479,"bestRating":5,"worstRating":1}},"stockNumber":null,"slug":"2025-gmc-sierra-2500hd-unknown","dateCreated":"2026-08-14T10:32:28.237Z","dateModified":"2026-08-14T10:32:28.236Z","safetyRating":null,"recallSummary":null,"referenceSpecs":null,"inventoryStatus":"on_lot","estimatedArrival":null,"_raw":{"lot_date":"2026-08-13"},"isFeatured":false,"internetprice":68977,"msrp":null}