Service bulletins for the 2021 Mazda Mazda3
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.
634 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Air suspension are shown. Show all
| 09-038-23 | 2023-12-05. Service bulletin. SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; UNKNOWN OR OTHER. Some customers may complain about the poor appearance due to an uneven rear beltline molding joint. This concern is caused by the rear beltline molding not being manufactured according to the original designed shape. To eliminate this concern, the rear beltline molding manufacturing process was improved to prevent form shape discrepancies from the original design. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.