Introducing the 2026 GMC Sierra 1500 AT4, a premium crew cab diesel truck built for capability and refinement. This white exterior pairs with stunning jet black and Kalahari accent leather to create an interior that feels purposeful yet upscale. Powered by a 3.0L turbodiesel I6 engine with 10-speed automatic transmission and 4WD, the Sierra AT4 combines efficiency with commanding performance to handle any terrain or workload.
- Universal Home Remote
- Navigation System with Hitch Guidance
- Premium Bose 7-Speaker Sound System with SiriusXM
- Power Sliding Rear Window with Rear Defogger
- Heated and Ventilated Leather Front Seats with 10-Way Power Adjustment
- Apple CarPlay / Android Auto with Wireless Connectivity
- Advanced Safety Suite: Automatic Emergency Braking, Lane Keep Assist, Rear Cross Traffic Braking
- Spray-On Bedliner with GMC Logo and LED Cargo Lighting
- 20 Machined Aluminum Wheels
- Integrated Trailer Brake Controller with Side Blind Zone Alert
The AT4 Preferred Package and Trailering Package elevate this truck with premium appointments and intelligent towing features. Standard amenities include remote start, push-button ignition, heated steering wheel, and climate zones throughout. This new Sierra is ready to impress whether you're on the job site or the open road. Visit our showroom today to experience the commanding presence and refined comfort of GMC's iconic diesel truck. Price includes $599 of dealer added accessories.