How do you reset the immobilizer in citroen saxo?

To reset the immobilizer in a Citroën Saxo, you typically need to use the vehicle's key. Insert the key into the ignition and turn it to the "On" position without starting the engine. Leave it in this position for about ten minutes, allowing the immobilizer system to reset. Afterward, turn the key off, wait a few seconds, and then try starting the engine again. If issues persist, consulting the owner's manual or a professional may be necessary.