Immobilizer Antenna Unit (IAU)
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
The IAU (Immobilizer Antenna Unit) is used if the KVM is unable to authorize the smart key. If the KVM is unable to identify the smart key, for example if the smart key battery voltage is low or there is local RF interference, the transponder within the smart key can be read in the conventional manner. The driver will be alerted to this by a chime and a message in the IC (Instrument Cluster) message center 'SMART KEY NOT RECOGNISED, REPOSITION OR PLACE AS SHOWN AND PRESS START BUTTON'.