Service bulletins for the 2020 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.
921 on file from NHTSA, as of 2026-10-19.
About C11A4 on the 2020 Porsche Cayenne: 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: C11A4 are shown. Show all
| No. 231-24 | 2025-03-05. Service bulletin. EXTERIOR LIGHTING. Technical Information - Flashing Function for Auxiliary Headlights Faulty / Fault Memory Entry "C11A401" in Control Unit for Headlight Bulb: Re-Code Control Unit for Headlight Bulb (231/24) |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.