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Service bulletin 030404

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 id10006824
Published by NHTSA2004-05-15
Manufacturer's number030404
Manufacturer's date2004-03-04
NHTSA componentELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

NHTSA's summary

A QUANTITY OF TYPE QT CIRCUIT BREAKERS, CATALOG NUMBER Q3020, WERE MIS-MARKED AT THE FACTORY. THE RESULT IS THAT THE 20A BREAKER IS MARKED AS A 30A AND THE 30A BREAKER IS MARKED AS A 20A. *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

Electrical system, Wiring and fuses

Vehicles listed
SIEMENS Q3020 CIRCUIT BREAKER

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