Service bulletins for the 2021 Subaru Legacy
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.
460 on file from NHTSA, as of 2026-10-19.
About B1788 on the 2021 Subaru Legacy: 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: B1788 are shown. Show all
| 18-217-22R | 2022-04-05. Service bulletin. EQUIPMENT. This bulletin announces Service Manual corrections for the diagnostic trouble tree for DTC B1788. |
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| 18-217-22 | 2022-02-04. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin announces Service Manual corrections for the diagnostic trouble tree for DTC B1788. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.