Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user "as is" without warranty of any kind, either express or implied. All vehicles are subject to prior sale. Prices include all costs to be paid by a consumer, except for licensing costs, registration fees, and taxes. ‡Vehicles shown at different locations are not currently in our inventory (Not in Stock) but can be made available to you at our location within a reasonable date from the time of your request, not to exceed one week.
This 2023 GMC Sierra 2500HD AT4 delivers the capability and refinement you need for serious work and weekend adventures. With its commanding presence and proven engineering, this truck stands ready to handle whatever you demand from it.
- X31 Off-Road Package
- 6.6L V8 engine with 6-Speed Automatic transmission
- 4WD with 2-Speed Active Transfer Case
- 20" Machined Aluminum Wheels with Black accents
- Premium GMC Infotainment System with Apple CarPlay/Android Auto
- Heated & Ventilated Front Bucket Seats
- Hill Descent Control with Off-Road Suspension
- Integrated Trailer Brake Controller with Hitch Guidance
- Spray-On Pickup Box Bed Liner with AT4 Logo
- SiriusXM with 360L satellite radio
- Heated Steering Wheel
- HD Rear Vision Camera
- Keyless Open & Start
- OnStar & GMC Connected Services Capable
- Dual-Zone Automatic Climate Control
The AT4 trim positions this Sierra as more than a work truck—it's engineered for serious off-road performance while maintaining the comfort features you appreciate in daily driving. The X31 Off-Road Package combines a specialized suspension system with Hill Descent Control, giving you confidence on challenging terrain. Inside, the heated and ventilated front seats adapt to seasonal conditions, while the climate control zones ensure comfort for all passengers.
Technology integration keeps you connected without distraction. The premium infotainment system pairs seamlessly with your smartphone through Apple CarPlay and Android Auto, and SiriusXM with 360L gives you access to premium satellite radio throughout your journey. Keyless entry and push-button start add convenience to every trip, while the integrated trailering system with Hitch Guidance simplifies hauling tasks.
The 6.6L V8 engine paired with the 6-Speed Automatic transmission provides the torque you expect from a heavy-duty truck, while 4WD capability with the 2-Speed Active Transfer Case handles diverse driving conditions. The truck's practical features include a spray-on bed liner with the AT4 logo, multiple USB ports throughout the cabin, and strategically placed power outlets for your tools and devices.
Visual presence matters, and this Sierra makes a statement. The Onyx Black exterior combines with 20" machined aluminum wheels and high-gloss black accents for a distinctive appearance. LED cargo area lighting illuminates the bed for nighttime work, while the body-color bumpers and painted black surround grille complete the coordinated design.
Safety and security are integrated throughout this truck's design. Dual front impact airbags, side-impact airbags, and an overhead airbag system provide comprehensive protection. Electronic Stability Control and Traction Control work together to maintain vehicle dynamics in challenging conditions. The security system and keyless open function provide protection and convenience.
Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user "as is" without warranty of any kind, either express or implied. All vehicles are subject to prior sale. Price does not include applicable tax, title, license, processing and/or documentation fees. ‡Vehicles shown at different locations are not currently in our inventory (Not in Stock) but can be made available to you at our location within a reasonable date from the time of your request, not to exceed one week. Residency restrictions may apply.






