Service bulletins for the 2021 Porsche 911
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.
750 on file from NHTSA, as of 2026-10-19.
About B143C on the 2021 Porsche 911: 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: B143C are shown. Show all
| No. 47-24 | 2024-10-07. Service bulletin. ELECTRICAL SYSTEM. Symptom based workshop manual for a warning message. "Ignition lock faulty - service required" in the instrument cluster/fault memory entry (B143C29) in the rear end electronics control unit |
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| No. 47-24 | 2024-05-02. Service bulletin. ELECTRICAL SYSTEM. Symptom-based workshop manual for the "ignition lock faulty - service required" in the instrument cluster/faulty memory entry B143C29 |
| No. 2125.1 | 2022-02-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Instructions on advanced technical information for the 911 ignition lock warning along with fault code B143C29. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.