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Service bulletins for the 2026 Porsche Cayenne

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.

253 on file from NHTSA, as of 2026-10-19.

About C12B3 on the 2026 Porsche Cayenne: what the code means, and the bulletins and recalls about the same components.

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By trouble code

Only bulletins with trouble code: C12B3 are shown. Show all

Bulletins, newest first
No. 37-262026-05-07. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. Symptom based workshop manual for Information Messages Regarding Assistance System Failures, Fault Memory Entry: Implausible Chassis Number “C12B3F3” in the Assistance Systems Control Unit

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.