Service bulletins for the 2011 Subaru Forester
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.
358 on file from NHTSA, as of 2026-10-19.
About P0304 on the 2011 Subaru Forester: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0304 are shown. Show all
| 1111612R | 2023-03-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. DTC P0301 ? P0304 and P050A Reprogramming |
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| 11-100-11R | 2017-03-01. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. DIFFICULTY STARTING, ROUGH IDLE DTCS P0301, P0302, P0303, P0304 P0340, P0341, P0345, P0346 |
| 11-130-13R | 2017-01-31. Service bulletin. ENGINE. "DIFFICULTY STARTING, ROUGH IDLE, CAM POSITION OR MISFIRE DTCS P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, P0301, P0302, P0303 OR P0304 - THIS BULLETIN PROVIDES INSPECTION AND REPAIR PROCEDURES FOR INTAKE AND EXHAUST CAMSHAFT POSITION-RELATED AND/OR ENGINE MISFIRE DTCS FOR THE FA AND FB ENGINE-EQUIPPED MODELS LISTED ABOVE." |
| 11-116-12R | 2016-11-18. Service bulletin. ENGINE. "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 summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.