Used Car Inventory, Trucks, SUV's, Cars in Dacono, Co

The 2026 GMC Sierra 1500 AT4X 6.2 delivers capability and refinement for those who demand both performance and presence. This White truck stands ready to handle any responsibility you place on it, whether navigating city streets or venturing into challenging terrain.

- EcoTec3 6.2L V8 engine with 420 hp and 460 lb-ft of torque
- Dual sport-mode active exhaust system
- 10-speed automatic transmission with 4WD
- Driver-selectable full-locking front and rear differentials
- Off-road suspension with hill descent control
- MultiPro Tailgate with audio system by Kicker
- Bose premium audio system with 12 speakers and SiriusXM
- Advanced safety features including automatic emergency braking and lane keep assist
- Integrated trailering system with trailer camera and integrated brake controller
- 16-way power driver seat with lumbar and ventilation
- Heads-up display and navigation system
- Wireless charging and Apple CarPlay/Android Auto compatibility
- Power sunroof and spray-on bedliner with GMC logo

The AT4X designation represents more than a trim level—it reflects a commitment to serious off-road engineering. The driver-selectable locking differentials give you command over terrain, while the off-road suspension with hill descent control manages steep descents with precision. The high-clearance steps provide practical access to the truck's elevated stance.

Power and efficiency work together in this Sierra. The EcoTec3 V8 combines Dynamic Fuel Management with the dual sport-mode active exhaust, delivering 420 horsepower and 460 pound-feet of torque when you need it. The 10-speed automatic transmission optimizes performance across the RPM range, achieving 14 MPG city and 16 MPG highway.

Inside, the truck welcomes you with full-grain leather, genuine wood accents, and a 16-way power driver seat offering lumbar support and ventilation. The Bose premium audio system with 12 speakers fills the cabin with clarity, while the multicolor 15-inch heads-up display keeps essential information within your line of sight. Wireless charging, Apple CarPlay, and Android Auto keep your devices connected seamlessly.

Safety technology surrounds you with confidence. Automatic emergency braking, lane keep assist, rear cross traffic braking, and rear pedestrian detection work together to help protect you and your passengers. The integrated trailering system with trailer camera and side blind zone alert ensures command when towing.

The Preferred Equipment Group 4SG and Trailering Package position this Sierra as a truck built for serious work and adventure. From its 18-inch painted aluminum wheels to its spray-on bedliner with GMC logo, every detail reflects intentional design.

Dacono, Longmont, Frederick, Firestone, Loveland, Front Range, Denver, Greeley, Ft Collins, Weld 80514. Here at Interstate Ford we try to make your buying experience as positive and hassle free as possible. All vehicles go through an inspection prior to sale and include a complimentary AutoCheck Vehicle History Report. Call our experienced Internet Sales Team today and see what sets Interstate Ford apart from the competition. Interstate Ford is located 2 blocks east of I-25 on Highway 52. We are just south of Longmont, Just north of Thornton.