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Service bulletin WQC-39

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 id10047519
Published by NHTSA2012-12-04
Manufacturer's numberWQC-39
Manufacturer's date2012-11-30
ReplacesWQC-39-A
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; ENGINE

NHTSA's summary

SUBARU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOFTWARE CHANGE WILL NOT AFFECT FUEL ECONOMY OR PERFORMANCE, EVEN THOUGH A CORRECTION, FOR ENGINE CONTROL MODULE, HAS BEEN DEVELOPED FOR THE DEFICIENCY IN OBDII SYSTEM THERMOSTAT MONITORING LOGIC. MODELS 2011-2012 LEGACY, OUTBACK, IMPREZA SEDAN, WAGON, FORESTER, TRIBECA AND 2013 BRZ. *PE UPDATED 1/31/13. *PE

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, Engine, Software

Vehicles listed
SUBARU B9 TRIBECA2011
SUBARU BRZ2013
SUBARU FORESTER2011, 2012
SUBARU IMPREZA2011, 2012
SUBARU LEGACY2011, 2012
SUBARU OUTBACK2011, 2012, 2013

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

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