How do you reset immobilizer on Renault laguna?

To reset the immobilizer on a Renault Laguna, first ensure that all doors are closed and the vehicle is in a safe location. Insert the key into the ignition and turn it to the "On" position without starting the engine. Leave it in this position for about 10 minutes until the immobilizer light on the dashboard turns off, then turn the key to the "Off" position and remove it. Finally, try starting the vehicle again with the same key. If the issue persists, consult a professional or the vehicle's manual for further assistance.