{"type":"vehicle","@type":"Vehicle","identifier":"3GTP9EEL2MG175937","name":"2021 GMC Sierra 1500 AT4 Rocky Ridge K2","vin":"3GTP9EEL2MG175937","url":"https://opendealer.shop/countryside-pre-owned-jackson-ga/2021-gmc-sierra-1500-at4-rocky-ridge-k2-3gtp9eel2mg175937","vehicleDetailsUrl":"https://autos.lotlinx.com/?ad=3GTP9EEL2MG175937&pdate=202607300300&request=AdLink&pubId=280000&url=1&utm_source=opendealer&utm_medium=referral&utm_campaign=ai-traffic","detailsUrl":"https://autos.lotlinx.com/?ad=3GTP9EEL2MG175937&pdate=202607300300&request=AdLink&pubId=280000&url=1&utm_source=opendealer&utm_medium=referral&utm_campaign=ai-traffic","dealerWebsite":null,"primaryImage":"https://imgcdn.lotlinx.com/vdn/95602/gmc_sierra%201500_2021_3GTP9EEL2MG175937_95602_2735148406.jpg?ver=20260701","thumbnailUrl":"https://imgcdn.lotlinx.com/vdn/95602/gmc_sierra%201500_2021_3GTP9EEL2MG175937_95602_2735148406.jpg?ver=20260701","make":"GMC","model":"Sierra 1500","vehicleModelDate":2021,"modelCode":null,"trimLevel":"AT4 Rocky Ridge K2","bodyType":"Truck","numberOfDoors":"4","color":"Satin Steel Metallic","vehicleInteriorColor":"Jet Black w/Kalahari Accents","colorCode":null,"interiorColorCode":null,"vehicleTransmission":"Automatic","driveWheelConfiguration":"4WD","vehicleEngine":{"name":"6.2L 8-cyl","engineDisplacement":"6.2L"},"fuelType":"Gasoline","fuelEconomy":{"city":16,"highway":21},"vehicleCondition":"Used","certified":"false","mileageFromOdometer":125960,"offers":{"@type":"Offer","price":34499,"priceCurrency":"USD","availability":"https://schema.org/InStock","url":"https://opendealer.shop/countryside-pre-owned-jackson-ga/2021-gmc-sierra-1500-at4-rocky-ridge-k2-3gtp9eel2mg175937","priceSpecification":{"msrp":null,"internetPrice":34499,"priceChange":null}},"description":"<b>Vehicle Details</b><br>Built for serious capability and premium comfort, this pre-owned 2021 GMC Sierra 1500 AT4 is ready for work, travel, and everything in between. Powered by a commanding V8, 6.2L gasoline engine and equipped with 4WD, this GMC Sierra delivers confident performance on rugged roads, job sites, and weekend adventures alike. With just 0 miles showing and low mileage status, it offers exceptional value for drivers seeking a nearly untouched truck with proven GMC durability.  Inside, the AT4 cabin blends convenience and advanced technology. Stay connected with Android Auto, enjoy easy access to your favorite functions with Steering Wheel Audio Controls, and drive with added peace of mind thanks to Lane Keep Assist, Lane Departure Warning, and Adaptive Cruise Control. These features help make every drive more comfortable, more convenient, and more secure.  This 2021 GMC Sierra 1500 AT4 is located in Jackson, GA and is a standout option for anyone looking for a strong, capable, and well-equipped full-size pickup. If you want a truck that combines bold design, advanced safety features, and impressive power, this GMC Sierra AT4 deserves a closer look. Contact us today to learn more or schedule your test drive.<br><br><b>Equipment</b><br>This unit's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. An off-road package is installed on it so you are ready for your four-wheeling best. The steering wheel audio controls on this unit keep the volume and station within easy reach. Start this GMC Sierra from inside with remote start. This vehicle has a clean CARFAX vehicle history report. Apple CarPlay: Seamless smartphone integration for this vehicle - stay connected and entertained on the go! The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. The installed navigation system will keep you on the right path. This unit stays safely in its lane with Lane Keep Assist. Keep your hands warm all winter with a heated steering wheel i","additionalProperty":[{"@type":"PropertyValue","name":"feature","value":"AT4 Premium Package: AT4 High Clearance Step"},{"@type":"PropertyValue","name":"feature","value":"LT275/65R18C MT BW Tires"},{"@type":"PropertyValue","name":"feature","value":"Driver Alert Package I: Ultrasonic Front and Rear Park Assist"},{"@type":"PropertyValue","name":"feature","value":"Rear Cross Traffic Alert"},{"@type":"PropertyValue","name":"feature","value":"Perimeter Lighting"},{"@type":"PropertyValue","name":"feature","value":"Lane Change Alert with Side Blind Zone Alert"},{"@type":"PropertyValue","name":"feature","value":"AT4 Value Package: LT275/65R18C"}],"image":[{"@type":"ImageObject","url":"https://imgcdn.lotlinx.com/vdn/95602/gmc_sierra%201500_2021_3GTP9EEL2MG175937_95602_2735148406.jpg?ver=20260701","description":"2021 GMC Sierra 1500 - Primary exterior view","representativeOfPage":true}],"seller":{"@type":"AutoDealer","name":"Countryside Pre-Owned","slug":"countryside-pre-owned-jackson-ga","telephone":null,"url":null,"address":{"@type":"PostalAddress","postalCode":"30233","addressRegion":"GA","streetAddress":"846 E 3rd St","addressCountry":"US","addressLocality":"Jackson"},"latitude":"33.2940000","longitude":"-83.9557000","dealerGroup":null,"aggregateRating":{"@type":"AggregateRating","ratingValue":4.4,"reviewCount":163,"bestRating":5,"worstRating":1}},"stockNumber":null,"slug":"2021-gmc-sierra-1500-unknown","dateCreated":"2026-07-30T10:34:56.535Z","dateModified":"2026-07-30T14:25:28.042Z","safetyRating":{"source":"NHTSA","program":"5-Star Safety Ratings (NCAP)","sourceUrl":"https://www.nhtsa.gov/ratings","nhtsaVehicleId":15360,"vehicleDescription":"2021 GMC Sierra 1500 PU/RC 4WD","overall":"5","overallFront":"4","frontalDriver":"5","frontalPassenger":"4","overallSide":"5","sideDriver":"5","sidePassenger":"Not Rated","sidePole":"5","rollover":"4","rolloverPossibility":0.198,"adas":{"electronicStabilityControl":"Standard","forwardCollisionWarning":"Optional","laneDepartureWarning":"No"},"fetchedAt":"2026-07-30T06:03:01.302Z"},"recallSummary":{"source":"NHTSA","scope":"year_make_model","openRecallCount":7,"hasOpenRecalls":true,"hasParkIt":false,"hasParkOutside":false,"fetchedAt":"2026-07-27T12:00:42.906Z"},"referenceSpecs":{"source":"manufacturer_reference","trimName":"AT4","description":"AT4 4dr Crew Cab 4WD 5.8 ft. 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