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Service bulletin SA-024-20

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 id10171785
Published by NHTSA2020-02-27
Manufacturer's numberSA-024-20
Manufacturer's date2020-02-06
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM:WIRING

NHTSA's summary

If you encounter sputtering, surging or poor driveability with the following DTCs stored, inspect the MAP sensor connection for corroded terminals (as shown below). Recommend replacing the engine wire harness and MAP sensor. Refer to GEPC for applicable part numbers.

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, Equipment and accessories, Wiring and fuses

Vehicles listed
MAZDA CX-92016, 2017, 2018, 2019

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

Recalls for the same vehicles and component
19V4030002019-05-30. ELECTRICAL SYSTEM:WIRING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
07-001/222022-04-05. Service bulletin. Some vehicles may exhibit an unusual noise in the front A/C unit when the recirculate switch is operated. This is caused by a damaged gear in the air intake actuator. Dust and sand adhered to the grease at the air intake link may disturb the movement of the air intake actuator, resulting in the damaged gear. To eliminate this concern, grease application to the air intake link mechanism to the link pin has been reduced.
SA-067-172017-10-12. Service bulletin. Due to a change in the 2017 Mazda3, Mazda6 and 2018 CX-9 A-pillar wiring harness, the EC Mirror w/compass / EC Mirror w/compass + Homelink installation instructions have been updated.