For the ultimate heavy-duty truck in GMC’s lineup, there’s the 2025 Sierra 3500HD, fresh off 2024’s major update. This year, the Sierra 3500HD carries over with a series of small tweaks to ...

After a full refresh for 2019, the 2020 GMC Sierra forges ahead by improving access to transmissions, equipment, and safety features. These minor changes add to the versatility already embodied by ...