New 2026 GMC Sierra 2500HD AT4 For Sale Oklahoma City, OK

What comes standard on the 2026 GMC Sierra 2500 HD AT4? It comes standard with 10-way power front seats with heating, ventilation and driver memory, heated rear outboard seats, a heated steering wheel, dual-zone climate control and premium floor liners. Technology includes a 13.4-inch touchscreen with Google built-in, wireless Apple CarPlay and Android Auto, a 12.3-inch driver display, a Bose premium sound system and HD Surround Vision. Owner benefits on the window sticker: 3 Year / 36,000 Mile Bumper-to-Bumper Limited Warranty; 5 Year / 100,000 Mile Powertrain Limited Warranty, Roadside Assistance & Courtesy Transportation; First Maintenance Visit (whichever comes first).What color is this Sierra 2500 HD AT4? Onyx Black exterior with a Jet Black interior and Kalahari accents.How much power does this Sierra 2500 HD AT4's 6.6L Duramax produce? The 6.6L Duramax turbo-diesel V8 is rated at 470 horsepower and 975 lb-ft of torque, paired with an Allison 10-speed automatic transmission.Is this Sierra 2500 HD AT4 equipped for towing? Yes. It has the Max Trailering Package, which adds:3500 HD frameLeaf springs12-inch rear axleShock packageGooseneck/5th wheelIt also has the Trailering Package, a trailer brake controller, the Vehicle Trailering App, Trailer Side Blind Zone Alert and StabiliTrak with trailer sway control and Hill Start Assist.Does this Sierra 2500 HD AT4 have the AT4 Premium Plus Package? Yes. It includes:AT4 Preferred Package with a universal home remote, a power sliding rear window and LED roof marker lampsPower sunroofTechnology Package with a rear camera mirror and a multi-color head-up displayDealer-installed AT4 high clearance stepsDoes this Sierra 2500 HD AT4 have a sunroof? Yes. This 2026 Sierra 2500 HD AT4 has a power sunroof.What off-road equipment does this Sierra 2500 HD AT4 have? It has skid plates, all-terrain tires, an automatic locking rear differential, a 2-speed Autotrac transfer case, the Traction Select system with Off-Road mode, a heavy-duty air cleaner and red front recovery hooks.What bed features does this Sierra 2500 HD AT4 have? It has the GMC MultiPro tailgate, a spray-on bedliner, LED cargo lighting, 120V power outlets in the bed and instrument panel, a power sliding rear window and a CornerStep rear bumper.Does this Sierra 2500 HD AT4 have extra safety features? Yes. It has Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, a Following Distance Indicator and IntelliBeam auto high beams. It also has the Safety Alert Seat, HD Surround Vision, front and rear park assist, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, Teen Driver mode and Buckle to Drive.What other options does this Sierra 2500 HD AT4 have? It also has a dealer-installed black lug nut and wheel lock kit, a trailer tire pressure monitor system, a high idle switch and the heavy-duty front springs/camper package.Does this Sierra 2500 HD AT4 include OnStar? Yes. It includes 8 years of OnStar Basics.Does this Sierra 2500 HD AT4 include Mobile Service Plus? Yes. This vehicle includes one year of Mobile Service Plus. With MobileService+, a factory-trained technician comes to your home or work in a purpose-built van for select services, including vehicle diagnostics, software programming, tire services and routine maintenance like oil changes and tire rotations. Contact Bob Moore Buick GMC to see if your location qualifies.Can I buy this Sierra 2500 HD AT4 online? Yes. Bob Moore Buick GMC in Oklahoma City offers complete online purchasing for this Sierra 2500 HD AT4. Customer must finance with General Motors in certain cases to qualify for all available incentives.$2000 - GMC Bonus Cash. Exp. 11/30/2026 $2500 - Buick & GMC Consumer Cash Progr