Meet the 2025 GMC Sierra 1500 AT4, a diesel-powered truck engineered for those who demand capability without compromise. This Silver AT4 delivers the durability and performance you need, whether you're managing daily responsibilities or tackling challenging terrain.

- Power Sunroof
- Technology Package with Rear Camera Mirror and 15" Head-Up Display
- Premium Bose 7-Speaker Sound System with SiriusXM 360L
- AT4 Preferred Package with Universal Home Remote and Power Rear Sliding Window
- 3.0L Diesel I6 Engine with 10-Speed Automatic and 4WD
- Heated and Ventilated Leather Front Seats
- Heated Rear Seats
- Off-Road Suspension with Auto-Locking Rear Differential
- Hill Descent Control
- HD Surround Vision with Bed View Camera
- Multicolor 15" Head-Up Display
- Automatic Emergency Braking and Lane Keep Assist
- Wireless Apple CarPlay and Android Auto
- Wireless Charging
- 20" Machined Aluminum Wheels

The diesel powertrain delivers efficiency you can rely on, achieving 22 city and 26 highway MPG. The 3.0L I6 pairs seamlessly with the 10-Speed Automatic transmission, while the 4WD system ensures traction across varying conditions. An engine block heater is included for year-round reliability.

Inside, the AT4 surrounds you with premium comfort and connectivity. Heated and ventilated front seats with 10-way power adjustment accommodate extended drives, while the available heated rear seats extend comfort to all passengers. The power sunroof invites natural light and fresh air into the spacious cabin. Premium leather trim enhances the refined interior atmosphere.

Technology keeps you connected and informed at every turn. The 15" multicolor head-up display projects critical information directly into your line of sight. The rear camera mirror provides enhanced visibility when backing, while the bed view camera offers new perspective when loading or maneuvering. Wireless Apple CarPlay and Android Auto connectivity ensure your smartphone integrates seamlessly, and wireless charging keeps devices powered throughout your journey.

On the road, advanced driver assistance features work proactively to support your safety. Automatic emergency braking, lane keep assist with departure warning, and rear cross traffic braking provide multiple layers of protection. The trailering package, which includes integrated trailer brake control and hitch view camera, makes towing straightforward and secure.

The AT4's rugged capability is evident in every detail. The off-road suspension system absorbs impacts while maintaining composure, and the auto-locking rear differential enhances traction when conventional systems reach their limits. Hill descent control adds confidence during steep descents. Red recovery hooks signal the truck's readiness for adventure.

This 2025 Sierra 1500 AT4 combines thoughtful engineering, refined comfort, and genuine capability in a package that respects your standards and your investments. Experience the difference a purpose-built diesel truck makes.