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July 20, 2020 Service bulletin

Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster...

Mazda technical service bulletin SA-029-20f for 2019-2020 Mazda MAZDA3 and 2020 Mazda CX-30.

Bulletin number
SA-029-20f
Component
Electrical system
Summary
Some customers may experience a "IN-VEHICLE NETWORK MALFUNCTION" warning message in the instrument cluster with one or more of the following DTC's stored:

Owners of these vehicles have filed 19 complaints in the electrical category.

Vehicles covered

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