This 2021 GMC Sierra 1500 AT4 in white presents a well-equipped crew cab ready for work or weekend adventures. The Jet Black leather interior with Kalahari accents creates a premium atmosphere, while the 3.0L turbocharged diesel engine paired with a 10-speed automatic transmission delivers both capability and efficiency across its 4WD platform. With over 157,000 miles, this truck has been actively used but remains a solid choice for buyers seeking proven reliability and genuine off-road credentials.
- 3.0L Turbocharged I-6 Diesel Engine with 10-Speed Automatic & 4WD
- AT4 Premium Package with Off-Road Suspension and Hill Descent Control
- 20 Machined Aluminum Wheels with Carbon Grey Metallic Accents
- Technology Package: GMC Infotainment System with Apple CarPlay/Android Auto, 8 Color Driver Information Center
- Premium Bose 7-Speaker Audio System with SiriusXM
- Heated & Ventilated Front Seats with 10-Way Power Adjustment and Lumbar Support
- Advanced Safety: Lane Keep Assist, Forward Collision Alert, Rear Cross Traffic Alert, Automatic Emergency Braking
- HD Surround Vision Camera System with Bed View & Rear Camera Mirror
- ProGrade Trailering System with Integrated Trailer Brake Controller
- All-Weather Floor Liners and Spray-On Bed Liner with AT4 Logo
This Sierra 1500 AT4 combines rugged capability with genuine comfort and modern convenience features. Come see it in person and experience the blend of premium interior quality and outdoor-ready performance that defines the AT4 lineup.




