GMC Terrain screen black with no sound, issues with fuse and OnStar after battery unplugged on GMC Terrain

Some GMC Terrain owners report experiencing a black screen with no sound after unplugging the battery, which may be attributed to several issues. One common problem is a blown fuse related to the infotainment system, which can lead to these symptoms; replacing the blown fuse might resolve the issue. Additionally, some owners find that the OnStar system may be affected after battery disconnection, potentially disrupting the infotainment system's functionality. Checking the OnStar system's connection could help address the problem. Furthermore, power loss in certain vehicle systems due to battery disconnection can contribute to the black screen and lack of sound, and rebooting or resetting the system may restore power to the affected components. It is advisable for owners facing these issues to investigate these potential causes for a prompt resolution.