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Frequently asked questions about cars and motorcycles

How to reset the BSI unit of a Citroen C4 Grand Picasso.

Model: Citroen C4 Picasso MK 2 - Years 2013-2022
Part: Control unit

Let's see in this video how to reset the control unit of a Citroen C4 Grand Picasso after disconnecting the battery. First, we need to open the driver's side window, then we will open the hood. Remove the key from the ignition through the window (we won't be able to open the door until the reset is completed) and make sure all the doors are properly closed. Position the key 5 meters away from the vehicle and wait 5 minutes before disconnecting the positive terminal of the battery, then wait twenty seconds. Reconnect the battery terminal and wait three minutes without doing anything, then bring the key back and turn on the lights, again through the window. Insert the key into the ignition and turn on the dashboard. Then turn it off. Now let's lock and unlock the car by pressing the remote buttons. Open the door and start the engine, and check all the functionalities.

Posted on 31 December 2025 by ScegliAuto

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Citroen C4 Picasso (2013-2022 / MK 2) The BSI is the main control unit of the vehicle, in this specific case, the Citroen C4 Picasso, responsible for managing all the essential functions …
Citroen C4 Picasso (2013-2022 / MK 2) In this tutorial, see how to reset the BSI unit in the Citroen C4 Picasso, an operation to perform to resolve any management errors of the various de…
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