Service bulletins for the 2018 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.
445 on file from NHTSA, as of 2026-10-19.
About B2242 on the 2018 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: B2242 are shown. Show all
| 15-225-18R | 2019-10-31. Service bulletin. ELECTRICAL SYSTEM. This Service Information bulletin provides a procedure to use when diagnosing the infotainment system, a DTC B2242- “UART COMMUNICATION” is stored in memory. UART communication occurs between the infotainment head unit (H/U) and the Auto HVAC system control panel. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.