Service bulletins for the 2004 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.
444 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| 516 | 2004-10-21. Service bulletin. ELECTRICAL SYSTEM. CHECK ENGINE WARNING LIGHT IS ACTIVATED IN INSTURMENT CLUSTER. *TC |
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| 406 | 2004-10-21. Service bulletin. ELECTRICAL SYSTEM. DUE TO FAULTY SOFTWARE IN THE TOWBAR SYSTEM CONTROL UNIT, THERE IS THE POSSIBILITY THAT THE WARNING MESSAGE CHECK TRAILER LIGHTING IN THE IC WILL BE ACTIVATED WHEN THE RIGHT DIRECTION INDICATOR LIGHT IS SWITCHED ON WITH SIMULTANEOUS BRAKING FOR AT LEAST 3 SECONDS WHEN TOWING A TRAILER. *TT |
| 1103 | 2004-06-04. Service bulletin. ELECTRICAL SYSTEM:WIRING. CHECK ROUTING OF THE MAIN WIRING HARNESS. ATTACHMENT C ADMINISTRATIVE PROCEDURE, RECALL CAMPAIGN A311. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.