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How to Reset the On-Board Computer in the Mazda 3?

Model: Mazda 3 BM, BN, MK 3 - Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Warning light – error code

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Video tutorial

This tutorial shows how to reset the on-board computer in the Mazda 3, a very simple and quick operation, for example, as a troubleshooting attempt. First, enter the cabin, then insert the key and turn on the instrument cluster.

Next, access the general menu on the central display, go to "Settings", navigate to the "System" tab, and select "Factory Reset". Now, just confirm the selection, wait for the system to restart, and check that the issues are resolved.


Updated on 15 October 2026 by ScegliAuto


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by ScegliAuto

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