Bluestar issues

[WILWAXU]

I installed the unit in my 2007 Trailblazer SS recently, the unit worked correctly for about a week or two, but now has issues with every use.

iPhone 6S

1) Only occasionally pairs on its own, usually I have to manually connect it.
2) After paired, will not activate a call using the onstar call button until I cycle the button, and manually connect to call with the phone. After that, I usually get one call in that works correctly, but then...
3) The unit will not disconnect from a call after phone call is over. I have to manually disconnect bluetooth on my phone to disconnect.

All of this manual manipulation of the phone defeats the reason I have bluetooth.

Please help.