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Service bulletin 11-116-12R

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 id10084412
Published by NHTSA2016-11-18
Manufacturer's number11-116-12R
Manufacturer's date2013-07-01
NHTSA componentENGINE

NHTSA's summary

"THE PURPOSE OF THIS BULLETIN IS TO ANNOUNCE THE AVAILABILITY OF UPDATED ECM REPROGRAMMING FILES TO ADDRESS DTCS P0301 – P0304 AND P050A. NOTE: THESE REPROGRAMMING FILES ARE INTENDED TO ADDRESS A CONDITION WHEN DTCS ARE PRESENT FOR MISFIRE, BUT NO ACTUAL DRIVABILITY CONDITION EXISTS OR HAS BEEN REPORTED BY THE CUSTOMER. ACTUAL ENGINE MISFIRE OR ROUGHNESS CONDITIONS MUST BE DIAGNOSED ACCORDING TO THE PROCEDURES LISTED IN THE APPLICABLE SERVICE MANUAL."

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

Engine

Trouble codes named

P0301, P0304, P050A

Vehicles listed
SUBARU FORESTER2011, 2012
SUBARU WRX2011 to 2012
SUBARU WRX STI2011 to 2012

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

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