2024 Gmc Sierra At4x 2024 Release Date. According to sources familiar with the matter, the start of regular production (sorp) for the 2024 gmc sierra 1500 is set to kick off on july 17 th, 2023. Updated on jul 31, 2024.

Prototype of upcoming 2024 gmc sierra hd at4x undergoing testing in august 2022. Updated on jul 31, 2024.