Service bulletins for the 2025 Cadillac Optiq
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.
299 on file from NHTSA, as of 2026-10-19.
About P29BB on the 2025 Cadillac Optiq: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P29BB are shown. Show all
| PIT6352A | 2025-04-01. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates A vehicle may come to the dealer with a service high voltage message and P29BB. The dealer is advised not to replace the heater. They are to clear the code and advise the customer that engineering is working on a design improvement. |
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| PIT6352 | 2025-03-17. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates A vehicle may come to the dealer with a service high voltage message and P29BB. The dealer is advised not to replace the heater. They are to clear the code and advise the customer that engineering is working on a design improvement. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.