Available Adaptive Cruise Control with trailering is an all-new technology for Sierra Heavy Duty. It allows the truck's Adaptive Cruise Control to account for additional drag and increased braking distances when towing a trailer.
Sierra Heavy Duty’s world-class towing capability is enhanced for 2024 with an available 6.6L Duramax Turbo Diesel V8 engine and an all-new, more efficient turbocharger.
This advanced suite of available intelligent technologies helps streamline the hitching and towing process with integrated tools that help enhance your sense of safety, confidence and visibility.
A bold, updated front end further refines Sierra HD Denali’s striking good looks.
Sierra HD Denali stands out with available unique wheels on SRW models.
This available feature includes textured step pads to help provide secure footing and a Deploy Running Board mode for car washes. Illuminated power assist steps standard on Denali Ultimate.
Sierra HD Denali’s interior distinguishes itself with a level of craftsmanship that is the epitome of Professional Grade. This includes aluminum trim and chrome accents and authentic open-pore walnut wood detailing.
Experience serious comfort everywhere you go in Sierra HD Denali Ultimate.
The front seatbacks and center console lid feature Denali Ultimate logos.
The technologically advanced available 12-speaker Bose Premium Series with Centerpoint surround sound analyzes the stereo signal and converts to multiple channels to create a concert-like listening experience.
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
Rear Cross Traffic Alert can warn you of detected left or right cross traffic behind your vehicle when you’re in Reverse.
Lane Change Alert with Side Blind Zone Alert can provide side-mirror visual alerts when a detected moving vehicle is quickly approaching or is in your side blind zone. It can help you avoid lane change collisions.
Forward Collision Alert can warn you if it detects a potential front-end collision with a vehicle you’re following so you can quickly take action. It can also provide a tailgating alert if you’re following a vehicle much too closely.