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I am developing a carkey application. I have applied to MFi and have obtained a com.apple.developer.carkey.session entitlement. By setting session in Entitlement.plist, the program I created can call CarKeyRemoteControl.start and obtain the session. However, even if VehicleReport() is called, information cannot be obtained and the return value is always empty. In the iPhone standard Wallet, a button is displayed below CarKey, and you can lock and unlock it. My question is, com.apple.developer.carkey.session is set in Entitlement.plist, but do I need to set anything else, such as manufacturerIdentifier? . Also, if I need it, what format should I use? for example, What should I do if I want to specify "TEST" for manufacturerIdentifier?