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- EcoTec3 5.3L V8 engine with 10-speed automatic transmission
- 4WD with off-road suspension and hill descent control
- LT275/65R18C Goodyear Wrangler DuraTrac tires
- AT4 high clearance step
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- SiriusXM 360L satellite radio with 6-speaker audio
- Spray-on pickup bed liner with AT4 logo
- Heated and ventilated front bucket seats with perforated leather trim
- 10-way power driver and passenger seat adjusters with lumbar support
- Remote vehicle starter system and keyless open and start
- ProGrade Trailering System with integrated trailer brake controller
- Heated steering wheel and auto-dimming rear-view mirror
- HD rear vision camera with hitch guidance and hitch view
- 120-volt bed-mounted and instrument panel power outlets
- Front and rear premium floor liners with removable carpet inserts

This 2021 GMC Sierra 1500 AT4 in black delivers the capability and comfort you expect from a full-size truck. The EcoTec3 5.3L V8 paired with the 10-speed automatic provides strong performance, while the 4WD system with off-road suspension and hill descent control handles challenging terrain with confidence. The Goodyear Wrangler DuraTrac tires offer proven traction in varied conditions.

Inside, the cab combines work-ready functionality with genuine comfort. The heated and ventilated leather front seats keep you comfortable across seasons, while the 10-way power adjusters and heated steering wheel add convenience. The GMC Infotainment System with Apple CarPlay and Android Auto keeps you connected, and SiriusXM 360L entertainment keeps the drive engaging.

This truck is equipped for real-world work. The spray-on bed liner protects your investment, while the ProGrade Trailering System with integrated trailer brake controller and hitch guidance makes towing straightforward. The 120-volt outlets both in the bed and on the instrument panel provide power when you need it. Red recovery hooks, front fog lights, and the HD rear vision camera round out practical features designed for reliability.

The AT4 package distinguishes this Sierra with the high-clearance step for easier access and purposeful styling that reflects its capability. Body-color bumpers, LED cargo lighting, and heated power mirrors add refinement to the truck's rugged character.

The 2021 Sierra 1500 AT4 delivers the balance of work capacity and daily comfort that truck buyers require. Visit our showroom to experience this vehicle and see how its features align with your needs.