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How to Reset the BMS on a Ford Focus MK3

Model: Ford Focus MK 3 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Warning light – error code

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On Ford vehicles, the BMS is the battery management system that monitors the battery's condition and intervenes to prolong its life by disabling certain electrical functions if necessary. This system must be reset every time the battery is changed or when using a charger to recharge the existing battery.

The system will remember that the battery is flat. You can avoid this issue by leaving the vehicle off for at least eight hours or by performing the reset; in any case, the vehicle must have been off for at least 30 minutes.

Turn the key to the ON position and wait for the battery warning light to flash at least 5 times; press and release the brake pedal 3 times. After 5 to 10 seconds, the light should turn off. You may need to repeat the operation, but allow the system to cool down for 30 minutes.


Updated on 27 June 2026 by ScegliAuto


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How to Reset the Tire Pressure Light on a MG ZS?

On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

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