2024 Gmc Sierra 2024 Hd At4. General motors officially unveiled the fully refreshed 2024 gmc sierra hd last october, revealing an updated exterior, an overhauled interior, a new trim level lineup, and. Gm unveiled the refreshed 2024 gmc sierra hd last october, revealing new exterior styling, an overhauled interior, a new trim level lineup, and a few powertrain updates.

The 2024 gmc sierra hd features two new trims designed to boost the truck’s appeal (and sticker price): This truck pleasantly surprised me with not only how well designed it was on the exterior, but also.