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How to Reset the i-stop Warning Light on a Mazda 3

Model: Mazda 3 MK 3, BN, BM - Years 2013-2019
Part: Warning light – error code

To reset the "i-stop" warning light on a Mazda 3, start by turning on the ignition and then starting the engine; once the engine is running, you will notice that the "i-stop" light on the rev counter is flashing red; and you will see two errors on the infotainment display, including the start and stop (i-stop) and a battery error; to resolve these two errors, simply replace the vehicle's battery, so loosen the positive and negative terminal clamps, unscrew the nuts of the bracket holding the battery; once the old battery is removed, take the new battery with the "start and stop" function, place it in its location, tighten the bracket nuts, reconnect the battery terminals, turn on the ignition and the engine, and you will notice that the "i-stop" light remains solid green and the error messages on the infotainment display have disappeared.

Updated on 26 August 2026 by ScegliAuto

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