2024 GMC Sierra 2500HD vs 2023 GMC Sierra 1500

The 2023 GMC Sierra 1500 had undergone a styling update in 2022, which refined its already impressive design for a full-size truck. The changes included a wider, more imposing grille and updated headlights, maintaining its sharp appearance. However, these exterior modifications felt more like a lateral move rather than a significant upgrade. The interior, on the other hand, marked a notable departure from its predecessor, aligning more with the trend of making truck cabins resemble those of daily driver cars and SUVs. The new dash featured a large screen, moving away from the simpler layout of the past. While the updated infotainment system was more complex, it retained traditional climate controls, a volume dial, and a home button, which some users appreciated.

In contrast, the 2024 GMC Sierra 2500HD Denali Ultimate was a sight to behold, especially for fans of large grilles. Its road presence was formidable, almost rivaling that of 18-wheelers. Our test model, finished in Onyx Black with an Alpine Umber tan interior, exuded a menacing attitude that commanded attention. The HD lineup for 2024 received an updated front bumper and grille assembly, complete with standard LED headlights and taillights, as well as sequential turn signals. The Denali Ultimate trim offered a six-passenger Crew Cab with two cargo bed length options, featuring handy side steps for easy access. The MultiPro Tailgate, standard on this trim, provided six configurations, enhancing its versatility for various tasks.

The 2023 GMC Sierra 1500 offered four powertrain options, starting with a 2.7-litre turbocharged four-cylinder engine producing 310 horsepower and 430 lb-ft of torque. Our test drive featured the 3.0-litre Duramax turbocharged inline-six diesel engine, delivering 305 hp and 495 lb-ft of torque. This diesel engine received a boost in power for 2023, while the gas turbo-four saw increased torque. Two gas V8 options were also available: a 5.3-litre V8 with 355 hp and 383 lb-ft, and a 6.2-litre V8 generating 420 hp and 460 lb-ft. The gas four-cylinder engine came with an eight-speed automatic transmission, while the others were paired with a 10-speed automatic. The Sierra 1500 had a towing capacity of up to 5,987 kg and a maximum payload capacity of 1,093 kg, depending on the engine configuration. The diesel engine's sound added to its heavy-duty presence, and the 10-speed automatic transmission ensured optimal performance. The Sierra 1500 Denali Ultimate offered a smooth and composed ride, though maneuverability in tight spaces was challenging due to its size.

The 2024 GMC Sierra 2500HD Denali Ultimate featured a 6.6-litre Duramax turbocharged diesel V8 engine, producing 470 horsepower and an impressive 975 lb-ft of torque. Paired with a 10-speed Allison automatic transmission and standard four-wheel drive, this powertrain delivered strong performance. Additional mechanical features included a locking rear differential, two-speed transfer case, all-terrain tires, and a diesel exhaust brake. Despite its size, the HD Denali Ultimate offered smooth acceleration and strong highway passing power. The automatic transmission performed seamlessly, enhancing the truck's performance in various driving situations. While handling was influenced by its size, the HD Denali Ultimate felt reasonably agile in city and highway traffic. However, its firm ride and suspension settings were tailored for towing and hauling, leading to a less comfortable experience on rough roads.

The 2023 GMC Sierra 1500 offered various cab and bed configurations, including regular, single, double, and crew cabs with different bed lengths. Our test model featured the crew cab/short-bed setup, providing ample cabin space with generous head and legroom for both rows. The interior boasted large storage trays in the doors and multiple spots for water bottles. The centre console included two large cup holders, a tray, and a deep storage compartment. The rear bench folded up for additional storage space. The MultiPro tailgate, standard on the Denali Ultimate, offered multiple configurations for added convenience.

The 2024 GMC Sierra 2500HD Denali Ultimate featured a luxurious interior with full-grain leather seats, leather-covered door panels, stainless-steel speaker grills, and wood trim. Power-operated running boards made entry easier, while the spacious cabin provided excellent stretch-out room and storage options. The front seats were wide, supportive, and equipped with heating, ventilation, and massage functions. The rear seat offered limo-like legroom and ample headroom. The centre console provided ample storage space, and a locking safe was available as an option. However, accessing items in the front door pockets proved challenging while driving.

The 2023 GMC Sierra 1500 Pro came with a 7-inch touchscreen and a carryover infotainment system, offering Apple CarPlay and Android Auto compatibility. Other trims featured a 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto. The updated infotainment system had a logical layout, large icons, and a home button. It also included Google-connected apps, trailering status apps, and average fuel economy displays. The Denali Ultimate trim featured a wireless charging pad, USB ports, and a wall-style power outlet. A 12.3-inch fully digital instrument panel was standard on all trims except the base Pro.

The 2024 GMC Sierra 2500HD Denali Ultimate boasted a 13.4-inch touchscreen, a 15-inch multi-colour head-up display, wireless Apple CarPlay and Android Auto, and a 12-speaker Bose surround-sound audio system. The navigation system was sharp and accurate, while the climate control system featured convenient buttons and dials. However, the steering-column-mounted gearshift stalk obstructed part of the centre screen. The HD Denali Ultimate also included a range of trailer aids, such as a trailer-brake controller, hitch guidance, and the ProGrade trailering system with 14 camera views.

The 2023 GMC Sierra 1500 came standard with forward collision warning, automatic emergency braking, pedestrian detection, lane keep assist, lane departure warning, and GM’s Teen Driver system. Higher trims, including the Denali Ultimate, offered additional features like blind-spot monitoring, rear cross-traffic alert, adaptive cruise control, and GM’s Super Cruise driver assist system. The rear headrests could be flipped down for improved visibility, and the rear-vision camera mirror provided added assistance.

The 2024 GMC Sierra 2500HD Denali Ultimate featured standard safety features such as automatic emergency braking, forward collision warning, pedestrian detection, and lane departure warning. Optional features, standard on the Denali Ultimate, included front and rear parking sensors, a surround-view parking camera, adaptive cruise control, rear cross-traffic alert, and blind-spot monitoring. The power-operated side mirrors provided an expansive view, and their extendable design offered additional rearward visibility.