How do you reset octavia immobiliser?

To reset the Octavia immobilizer, first, ensure that you have the correct key fob for the vehicle. 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 turns off, then turn the key to the "Off" position and remove it. Repeat this process a couple of times if necessary, and then try starting the vehicle. If issues persist, consult a professional or your vehicle's manual for further instructions.