Service bulletins for the 2017 Mazda CX-9
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.
513 on file from NHTSA, as of 2026-10-19.
About P0401 on the 2017 Mazda CX-9: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0401 are shown. Show all
| SA-072-17 | 2021-03-08. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ELECTRICAL SYSTEM; ENGINE. If you receive a customer complaint of a Check Engine Light on with a DTC P0401 stored in memory, follow the repair procedure below. |
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| 01-017-18-3518 | 2018-10-09. Service bulletin. ENGINE. Some customers may experience a check engine light on and DTC P0401:00 stored in memory without any drivability issues. P0401:00 - [PCM] EGR flow insufficient detected. This concern may be caused by the detection logic for the DTC is too sensitive. To eliminate this concern, the control logic of the PCM has been modified. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.