Service bulletins for the 2023 Cadillac CT5
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
518 on file from NHTSA, as of 2026-10-19.
About P30EF on the 2023 Cadillac CT5: what the code means, and the bulletins and recalls about the same components.
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By component
By trouble code
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Only bulletins with trouble code: P30EF are shown. Show all
| PIC6496A | 2023-06-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates the direction a technician needs to take when DTC P30EF is set. |
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| PIC6496 | 2023-04-17. Service bulletin. POWER TRAIN. This Preliminary information communicates the direction a technician needs to take when DTC P30EF is set. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.