| Bulletin Date: | Feb. 27, 2024 |
| Component: | Electrical system |
| Bulletin Summary: | This preliminary information communicates that a software update is in the works and to disconnect the 12 volt battery to clear the codes. |
| Vehicles covered in this TSB: |
2023 Brightdrop Zevo 600,
2023 Cadillac Lyriq,
2024 Cadillac Lyriq,
2023 Cadillac Lyriq Ev,
2024 Cadillac Lyriq Ev,
2022 GMC Hummer Ev,
2023 GMC Hummer Ev,
2024 GMC Hummer Ev.
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Also see Common Cadillac problems