Meet this striking 2025 GMC Sierra 1500 AT4 in Black, a diesel-powered crew cab that delivers commanding presence and proven capability. With its 3.0L I6 diesel engine paired to a 10-speed automatic transmission, this 4WD truck balances efficiency with performance, achieving 22 city and 26 highway MPG. This used model shows just 15,531 miles and arrives with a Clean Carfax and an impressive Free 20 Year / 200,000 Mile Powertrain Warranty.
The AT4 premium package elevates this Sierra with:
- Power Sunroof with premium glass
- Technology Package with Navigation System
- Premium Bose 7-Speaker Sound System with SiriusXM 360L subscription
- Off-Road Suspension and Auto-Locking Rear Differential
- Heated and ventilated leather front seats with 10-way power adjustment
- Wireless Apple CarPlay and Android Auto
- HD Surround Vision with Bed View and Rear Camera Mirror
- Advanced safety suite including Automatic Emergency Braking, Lane Keep Assist, and Rear Cross Traffic Braking
- Integrated Trailering Package with trailer brake controller and hitch guidance
- Spray-on bedliner with GMC logo and remote vehicle starter
The Jet Black interior with Kalahari accents and perforated leather seating creates a refined, purpose-built workspace. Premium features throughout include the multicolor 15-inch head-up display, heated steering wheel, wireless charging, and comprehensive camera systems for enhanced visibility in any condition.
This AT4 represents the full capability and refinement GMC engineered into this generation. Experience it in person and discover why the Sierra 1500 AT4 leads its class.