The GMC Sierra HD is a tried and true behemoth, ready to tackle any assignment, from the toughest towing jobs to traversing difficult terrain. For the 2024 model year, the Sierra HD is new, with an exciting and expansive list of features to go over. Delivering new powertrains options, new exterior styling, new trim levels, and brand-new technology, the experts here at Gus Brown Port Perry have you covered. Get your first look at the new 2024 GMC Sierra HD in Ontario, and follow along with our team as we preview key updates and features to this HD truck, before its anticipated arrival in the spring of 2023

Heavy-Duty Performance Meets Rugged Capability

Ready to deliver brawny power and otherworldly towing capability, the Sierra HD comes into 2024 with numerous performance updates. Drivers will find that the Sierra HD’s 6.6 L V8 standard gas engine now comes paired with an Allison 10-speed automatic transmission, previously a diesel exclusive. This provides a noticeable upgrade to power, torque, and efficiency. Diesel enthusiasts can get excited about the updated 6.6 L V8 Turbomax Diesel with an all-new turbocharger. 475 horsepower is now matched to 975 lb-ft of torque for astonishing capability, as 25% more low-end torque compared to last year's model. Wrapping up performance highlights, drivers will find enhanced exhaust brake performance, as well as improved engine braking, with a new turbo vane actuator and uprated valve springs.

Technology Updates

Get ready to trailer like a pro, as the 2024 Sierra HD is set to come with the new available advanced trailering technology. Debuting on the Sierra HD is GMC’s Adaptive Cruise Control with Trailering. Keep confident while you pull your load, as this technology accounts for both additional drag and braking. Keep an eye on your load digitally as gooseneck and fifth-wheel trailers are now compatible with GMC’s transparent trailer view. Rounding out technology updates, drivers will now find a gross combination weight (GWC) alert, this alert indicating how much weight can be loaded into the vehicle and trailer without risking damage to the vehicle.

Modern Design Updates & New Trims Introduced

Standing out with stylish new updates to the exterior, the 2024 GMC Sierra HD moves unapologetically. Find a revised front fascia and newly available LED headlights and taillights, delivering a rugged, yet refined look to the new Sierra HD. Looking at new high-end trim levels introduced for 2024, luxury and off-road enthusiasts will be salivating. AT4X and AT4X AEV editions will be available for the Sierra HD, for the very first time. The unparalleled off-road performance characteristic of the trim, as well as unique styling, makes for a one-of-a-kind truck. Those more drawn to luxury and comfort can look to the debut of the Denali Ultimate trim on Sierra HD. Representing top-tier luxury, style and sophistication, all while providing the power that’s characteristic of Sierra HD.