Mazda Connect information entertainment system in the Mazda 3 2017 Model

How to soft reset the Mazda Connect infotainment system

If the Mazda CMU freezes or locks up while driving – or if for any reason you need to reset the CMU – you can reset it without turning off the ignition by pressing the following button combination and holding it for 10 seconds:


The infotainment screen will go black then display the Mazda logo as the unit finishes rebooting.

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Michael Visser

I'm a WordPress Plugin developer, UAV & Raspberry Pi enthusiast and general tinkerer. This domain serves as my development playground for non-WordPress Plugin projects.

2 thoughts on “How to soft reset the Mazda Connect infotainment system”

  1. Seemed to work ok, many thanks for the info.
    Hope I don’t have to do it every time I drive..
    BTW, I have seen a lot of posts from folks in the USA saying the system doesn’t seem to like low temperatures, as this is the coldest (and longest) winter we have had in the UK for some years I’m wondering if they might be right…..

  2. Awesome! Thank you so much! Your post was the only one I found that said hold the key combo for 10 seconds; and, of course, it didn’t work until I did that!

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