Additional Key cannot be Registered (Share Key) [10/2023 - ]: Description

In order to additionally register a share key, it is necessary to pair the mobile device to be additionally registered with the vehicle. If pairing fails or an error occurs during pairing, it is suspected that the mobile device to be additionally registered as a share key, the digital key ECU assembly, or the certification ECU (smart key ECU assembly) is defective.

Also, if an error occurs prior to pairing, as the vehicle is not malfunctioning, it is necessary to refer to the digital key application in order to perform the correct registration procedure.