Call us at 512-900-7062

- 6.2L V8 EcoTec3 engine with Dynamic Fuel Management (420 hp, 460 lb-ft torque)
- 20 machined aluminum wheels with carbon grey metallic accents
- Spray-on pickup bed liner with AT4 logo
- 4WD with off-road suspension and hill descent control
- Heated and ventilated leather front seats with 10-way power adjustment
- GMC Infotainment System with Apple CarPlay and Android Auto
- SiriusXM with 360L satellite radio
- ProGrade Trailering System with integrated trailer brake controller and hitch guidance
- Rear underseat storage with composite bin
- HD rear vision camera
- 120-volt bed-mounted and instrument panel power outlets
- Remote vehicle starter system
- Auto-dimming rear-view mirror with compass

This 2021 GMC Sierra 1500 AT4 in gray delivers the capability and refinement you need for work and weekend adventures. The 6.2L V8 engine combines raw power with intelligent efficiency through Dynamic Fuel Management, allowing the engine to operate in multiple patterns to optimize performance based on your driving needs. Whether you're tackling a job site or exploring off-road terrain, this truck responds with authority.

Built for tough conditions, the AT4 comes equipped with an off-road suspension package and hill descent control that give you confidence on challenging terrain. The 4WD system works seamlessly with electronic traction control and an auto-locking rear differential to keep you moving forward. The spray-on bed liner with AT4 logo protects your cargo area while adding distinctive style.

Inside, the crew cab provides comfort for all passengers. Heated and ventilated leather front seats with lumbar support adjust ten ways to find your ideal position. The rear seats heat up as well, and the split-folding design gives you flexibility for passengers or cargo. Premium floor liners in both rows protect the interior while adding a refined touch.

Technology keeps you connected and in control. The GMC Infotainment System features Apple CarPlay and Android Auto compatibility, while SiriusXM with 360L brings premium audio to your daily drive. The 4.2-inch color driver information center displays vehicle data at a glance. Remote vehicle starter, wireless connectivity capable with OnStar, and rear dual USB charging ports keep your devices powered and your information accessible.

The ProGrade Trailering System transforms this truck into a capable towing platform. Integrated trailer brake control, hitch guidance with hitch view, and recovery hooks come standard. An in-vehicle trailering app helps you manage towing with precision. The rear underseat storage with removable bin keeps smaller items organized and accessible.

Every detail reflects GMC's commitment to quality. Full LED cargo lighting illuminates your truck bed, while body-color bumpers and surround grille create a cohesive appearance. The 20-inch machined aluminum wheels wear Goodyear Wrangler Territory tires that balance on-road comfort with off-road capability. Electronic stability control, four-wheel disc brakes with ABS, and comprehensive airbag protection work together to keep you safe.

Call us at 512-900-7062