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Service bulletin 3401

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10010646
Published by NHTSA2004-12-04
Manufacturer's number3401
Manufacturer's date2004-10-11
NHTSA componentPOWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

APPROVED OIL FOR MANUAL TRANSMISSION. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Manual transmission

Vehicles listed
PORSCHE CAYENNE2004
PORSCHE CAYENNE S2004 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO2004 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.