How do you reactivate my immobilizer Hyundai iload van?

To reactivate the immobilizer on a Hyundai iLoad van, first ensure that you have the correct key fob and that its battery is functional. Insert the key into the ignition and turn it to the "On" position without starting the engine. Wait for about 10-15 minutes until the security light on the dashboard stops flashing, indicating that the immobilizer has been reset. If issues persist, consult the owner's manual or contact a Hyundai dealer for assistance.