Service bulletins for the 2021 Mazda MX-5
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.
213 on file from NHTSA, as of 2026-10-19.
About P0171 on the 2021 Mazda MX-5: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0171 are shown. Show all
| MT-004-22 | 2023-01-05. Service bulletin. ENGINE AND ENGINE COOLING. Some vehicles may experience the Check Engine Light ON with DTC P0171 (Fuel Trim too Lean) and possibly DTCs P030X (Misfire). Vehicles having this concern should use the following Inspection/Repair procedure. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.