Service bulletins for the 2011 Subaru Impreza
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.
252 on file from NHTSA, as of 2026-10-19.
About P0304 on the 2011 Subaru Impreza: 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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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.