2021 GMC Sierra 1500 AT4 Crew Cab 4x4 for Sale in Mobridge, SD

Adventure, capability, and premium craftsmanship define this 2021 GMC Sierra 1500 AT4 Crew Cab 4x4, Stock #5W155A—now available at Beadle Chevrolet – GMC in Mobridge, South Dakota. Offering the rugged AT4 Off-Road Package with a factory 2" lift, advanced safety suites, luxurious Jet Black/Kalahari interior, and a potent 5.3L EcoTec3 V8, this truck is built for drivers who want both refinement and capability. Shoppers from Aberdeen, SD, Pierre, SD, and Bismarck, ND are just a short drive away from this exceptionally equipped Sierra.

2021 GMC Sierra 1500 AT4 Crew Cab 4x4 – Stock #5W155A

Key Features & Highlights

• Engine & Performance: 5.3L EcoTec3 V8 with Dynamic Fuel Management (L84), 10-speed automatic transmission (MQB), Autotrac 2-speed transfer case (NQH), Z71 Off-Road Suspension with 2" lift (Z7X), skid plates (NZZ), Hill Descent Control (JHD), and an external engine oil cooler (KC4).
• AT4 Off-Road Capability: Goodyear Wrangler Territory all-terrain tires (QFV), red off-road recovery hooks (UGA), off-road mode, heavy-duty air filter (K47), and locking rear differential (G80).
• Towing & Utility: Trailer Brake Controller (JL1), Trailering Package (Z82), Hitch Guidance with Hitch View (PZ8), MultiPro tailgate (QK2) with power lock & release (QT5), LED cargo lighting (UF2), spray-on bedliner (CGN), and multiple 120-volt power outlets (KI4, KC9).
• Exterior: Dark Sky Metallic (GJI), AT4-exclusive styling, 20" machined aluminum wheels with Carbon Grey accents (NZH), power-folding heated mirrors with driver's auto-dimming (DEZ), LED fog lamps (T3U), deep-tinted glass (AKO), and CornerStep rear bumper (BWN).
• Interior Comfort & Convenience: Jet Black with Kalahari accents (HVD), front bucket seats with center console (A50), heated and ventilated front seats (KA1, KQV), heated second-row outboard seats (KA6), heated steering wheel (KI3), dual-zone climate control (CJ2), rear sliding power window (A48), driver memory presets (A45), and 60/40 rear seat with storage (SNR).
• Technology: GMC Premium Infotainment System with Navigation (IOT), 8" HD touchscreen, Wireless Apple CarPlay/Android Auto (IOT/PPW), Bose premium sound system (UQA), wireless charging (K4C), HD Rear Vision Camera (UVB), digital high-definition display, USB ports front and rear (MCZ, USS), and OnStar with Wi-Fi capability (UE1/VV4).
• Safety & Driver Assistance:
  • Driver Alert Package I (PQB): Front & Rear Park Assist, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert.
  • Driver Alert Package II (PDJ): Forward Collision Alert, Lane Keep Assist with Departure Warning, Automatic Emergency Braking, Front Pedestrian Braking, IntelliBeam auto high beams (TQ5), Following Distance Indicator, Safety Alert Seat (HS1).
  • Teen Driver (TDM), Tire Fill Alert, Rear Seat Reminder (RSR), perimeter lighting (U12).

Expert Insights

According to automotive reviewers such as Kelley Blue Book and Edmunds, the Sierra AT4 stands out for its premium interior materials, refined ride quality, and true off-road capability straight from the factory. The combination of a 5.3L V8, lifted suspension, and advanced towing tech makes it one of the most versatile half-tons available.

Take the Next Step

See this 2021 GMC Sierra 1500 AT4 Crew Cab 4x4 today at Beadle Chevrolet – GMC in Mobridge, SD. Call 605-845-7277 to schedule a test drive or request pricing. If you're coming from Aberdeen, Bismarck, or Pierre, you're less than two hours from an exceptional truck-buying experience.