About This GMC Sierra 1500 AT4 Crew Cab

This 2021 GMC Sierra 1500 AT4 Crew Cab combines off-road capability with premium comfort, showing 54,654 miles. Finished in Summit White with a Jet Black interior accented by Kalahari details, it delivers a balanced mix of rugged design and upscale features.
Power comes from an EcoTec3 5.3L V8 engine producing 355 horsepower and 383 lb-ft of torque, paired with a 10-speed shiftable automatic transmission. The AT4 trim adds off-road-focused equipment including front and powertrain skid plates, off-road assist steps, and a spray-on bed liner. This truck rides on 20-inch machined aluminum wheels with painted accents, wrapped in Goodyear Wrangler Territory LT265/60R20 mud-terrain tires, with a full-size spare mounted under the bed. The multi-function tailgate provides added versatility for work and daily use.
Inside, the leather-trimmed interior offers heated and ventilated front seats, heated rear seats, a heated leather-wrapped steering wheel, dual-zone automatic climate control, and rear air vents. Convenience and technology features include push-button start, remote engine start, power-adjustable and memory seats, a digital instrument display, multiple power outlets and USB ports, LED lighting throughout, power-folding heated mirrors, and advanced driver-assist and visibility features. This Sierra 1500 AT4 is well-equipped, capable, and ready for both demanding conditions and everyday driving.