Service bulletins for the 2021 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.
230 on file from NHTSA, as of 2026-10-19.
By type
By component
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Only bulletins with component: Engine control module are shown. Show all
| 09-79-21 | 2021-10-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM. This bulletin announces availability of ECM reprogramming files to address isolated concerns of inaccurate values being displayed when accessing Lifetime Tracking Data using the Subaru Select Monitor and / or a Generic Scan Tool (GST). |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.