Summary
2022 GMC Sierra 2500HD AT4 Duramax Crew Cab 4x4 – 1 Owner – Extensive Service History

Vehicle Details
This 2022 GMC Sierra 2500HD AT4 Crew Cab 4x4 is finished in Onyx Black with a Jet Black interior with Kalahari accents and is powered by the highly desirable 6.6L Duramax Turbo-Diesel V8 paired with the Allison 10-speed automatic transmission.
The AT4 delivers serious heavy-duty capability with 4x4, X31 Off-Road suspension, twin-tube Rancho shocks, skid plates, automatic locking rear differential, 2-speed Autotrac transfer case, all-terrain tires, red recovery hooks, off-road and tow/haul modes, digital variable steering assist, integrated trailer brake controller, and ProGrade Trailering System.
This truck is equipped with the AT4 Premium Package, giving it an impressive combination of luxury and technology. Highlights include heated and ventilated front bucket seats, heated steering wheel, driver-seat and mirror memory, dual-zone automatic climate control, wireless charging, Bose premium audio, power sunroof, rear power-sliding window, and Universal Home Remote.
Driver-assistance and camera technology includes HD Surround Vision, Bed View Camera, trailer camera provisions, Rear Camera Mirror, Head-Up Display, Forward Collision Alert, Lane Departure Warning, Automatic Emergency Braking, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, Safety Alert Seat, IntelliBeam automatic high beams, and front and rear park assist.
For truck utility, this Sierra features the GMC MultiPro tailgate, factory spray-on bedliner with AT4 logo, rear wheelhouse liners, LED cargo-box lighting, 120-volt bed and interior power outlets, fixed cargo tie-downs, CornerStep rear bumper, side bed steps, and power-folding/extending heated trailering mirrors.
It also rides on 20-inch machined aluminum wheels and includes LED reflector headlamps, LED fog lamps, roof marker lamps, and the distinctive AT4 appearance package.
CARFAX shows this as a 1-owner vehicle with no accidents or damage reported and 21 documented service records. The history shows consistent maintenance including repeated oil changes and fuel-filter replacements. Recent documented work includes transmission fluid service, coolant service, brake-fluid service, alignment, tire rotation, and an oil and filter change.
If you are looking for a heavy-duty truck with Duramax diesel power, Allison transmission, AT4 off-road capability, premium leather-appointed equipment, sunroof, Bose audio, Head-Up Display, surround-view cameras, advanced trailering technology, and a strong documented maintenance history, this Sierra 2500HD deserves a close look.
Call or message us today to schedule your test drive and get your exact out-the-door numbers before someone else takes it home.
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Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.

Packages
Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Lane Change Alert with Side Blind Zone Alert; Perimeter Lighting Driver Alert Package II: Forward Collision Alert; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Lane Departure Warning AT4