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Service bulletin SA-072-17

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10188495
Published by NHTSA2021-03-08
Manufacturer's numberSA-072-17
Manufacturer's date2017-11-28
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ELECTRICAL SYSTEM; ENGINE

NHTSA's summary

If you receive a customer complaint of a Check Engine Light on with a DTC P0401 stored in memory, follow the repair procedure below.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Exhaust and emissions, EGR valve

Trouble codes named

P0401

Vehicles listed
MAZDA CX-92016, 2017, 2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.