Do it yourself
Frequently asked questions about cars and motorcycles

How to Reset the BMS on a Ford Focus Mk3

Model: Ford Focus MK 3 - Years 2011-2018
Part: Warning light – error code

In this video tutorial, you will learn how to reset the BMS (Battery Management System) on a Ford Focus Mk3. The BMS is an electronic device that ensures the health of the battery cells by monitoring key parameters and optimising performance. After replacing the old battery with a new one of the same amperage, get into the vehicle and press the ignition button without pressing the clutch pedal, so do not start the engine. Within 10 seconds, press the rear fog light button five times, then press the hazard light button three times. After about 5 seconds, you will see the battery icon light up three times; if it does not, you need to try the reset again.

Updated on 13 July 2026 by ScegliAuto

Video tutorial

Related tutorials

Ford Focus (2011-2018 / MK 3) In this short guide, we will see the instructions that will allow us to reset the BMS of the Ford Focus, in simple and quick steps. First of all, we …
Ford Focus (2011-2018 / MK 3) To clear the BMS (Battery Management System) light from the instrument cluster of the Ford Focus, first ensure that the new battery is installed and …
Ford Focus (2011-2018 / MK 3) Today, you will learn how to reset the battery warning light on a Ford Focus (resetting the so-called BMS). First, get inside the vehicle and turn on…

Other guides you may be interested in

    Frequently Asked Questions

    • Focus 2004-2011 - How to find the radio code of the Ford Focus 6000 CD? Read answer

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos