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How to Reset the Battery Warning Light on a Ford Vehicle

Model: Ford Ranger T6, P375, PX - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
Part: Warning light – error code

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Video tutorial

Learn how to reset the Battery Monitoring System (BMS) on a Ford vehicle. On Ford cars from 2015/2016 onwards, there is a battery monitoring sensor located on the negative cable of the battery; it is a small plastic box with a connector.

This system tracks the age and status of the battery, and when it becomes old, it automatically starts to deactivate certain functions to preserve starting, such as keyless entry, pedal control for the tailgate, some climate functions, and some interior lights.

Each time the battery is replaced, it is necessary to reset the BMS; otherwise, the vehicle will continue to behave as if it still has the old battery, limiting functions and not charging the new battery properly.

Without diagnostic tools, do the following: get in, turn on the ignition, flash the main beam five times, press the brake pedal three times, and wait for 10 seconds. At this point, the battery warning light on the dashboard should flash: this indicates that the reset has been successfully completed.


Posted on 11 November 2026 by ScegliAuto


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