Service bulletins for the 2023 Mazda CX-30
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.
318 on file from NHTSA, as of 2026-10-19.
About P20F8 on the 2023 Mazda CX-30: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P20F8 are shown. Show all
| 01-003-26a | 2026-05-03. Service bulletin. POWER TRAIN. This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text. 01-003/26 01/30/26 Some vehicles may exhibit a check engine light ON with DTC P20F8:00 stored. P20F8:00 - Swirl control circuit range/performance problem. In these cases, increasing temperature levels of the Swirl Control Valve (SCV) motor due to excessive actuation leads to duty limitation, causing poor openingô€€€angle response and resulting in a stuck judgment. To eliminate this concern, the PCM logic has been modified. REPAIR PROCEDURE Reprogram the PCM with the Mazda Modular Diagnostic System (M-MDS), using Mazda Diagnostic and Repair Software (MDARS). Refer to MDARS ECU Reprogramming Procedure. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.