I have the RA2, though with an iphone 4 (latest SW). I don't know what Uconnect version I have. I took delivery in May.
I have found that the Bluetooth pairing is not very consistent. It's never immediate. Without touching it, it would usually pair within a minute though there was an occasion where I was sure it had not paired in 5 minutes. As a point of comparison, my wife's Mercedes on the other hand pairs instantly and has never failed. She had paired her phone once 3 years ago. I monitor the Jeep every now and then but so far I can probably say it will pair, though not always instantly.
Hope this helps
I have found that the Bluetooth pairing is not very consistent. It's never immediate. Without touching it, it would usually pair within a minute though there was an occasion where I was sure it had not paired in 5 minutes. As a point of comparison, my wife's Mercedes on the other hand pairs instantly and has never failed. She had paired her phone once 3 years ago. I monitor the Jeep every now and then but so far I can probably say it will pair, though not always instantly.
Hope this helps