For the past week or two, every time I've tried Smart Summon, I get the message that 'Smart Summon is currently not ready'. Doesn't matter how close to the car I am. I even put Summon in standby mode and got the same message. I'm on 36.10, if that helps. Thinking about a service appointment. This feature has worked before in the many times I've used it. Any ideas what could be the problem? Regular Summon works fine.