Service bulletins for the 2021 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.
371 on file from NHTSA, as of 2026-10-19.
About B1571 on the 2021 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: B1571 are shown. Show all
| 18-230-26 | 2026-06-01. Service bulletin. ENGINE. This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT) are detected by Keyless Access with Push Button Start(KACM). |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.