<p> Trustworthy and worry-free, this 2025 GMC Sierra 2500HD Denali Ultimate comfortably packs in your passengers and their bags with room to spare. Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering, Trailer Tire Pressure Monitor Sensors includes set of 4 sensors. Sensor functionality requires (UET) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories, Trailer Side Blind Zone Alert, Trailer Camera Provisions and trailer viewing software, Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire). </p> <p><strong> Let the GMC Sierra 2500HD Put Your Family's Safety First </strong><br /> Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver, StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist, Seat Belt Adjustable Guide Loops, front row only, Safety Alert Seat, Rear Seat Belt Indicator, Rear Cross Traffic Alert, OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.), OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (OnStar Basics includ