Service bulletins for the 2018 Subaru WRX
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.
368 on file from NHTSA, as of 2026-10-19.
About C1531 on the 2018 Subaru WRX: what the code means, and the bulletins and recalls about the same components.
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By component
By trouble code
Only bulletins with trouble code: C1531 are shown. Show all
| 06-77-20R | 2020-11-05. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This bulletin announces the availability of reprogramming files to optimize the control module for the Vehicle Dynamics Control system (VDCCM). DTCs C1531 and/or C1741 may set, the Hill Holder warning lamp and cancellation alarm may activate and/or the VDC warning lamp can illuminate. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.