Nissan 370Z Forum - phone and xm radio not working properly

Has anyone experienced this? twice in the last two days when I start the car the blu-tooth starts to dial a number. it doesn’t say the number on the nav screen and when I try to hang up it doesn’t stop the call. Eventually it stops but not after 15 seconds or so and the call is never answered so I don’t know for sure if it’s actually calling someone. also this morning another time when I started the car the sound wasn’t working on the xm radio. I tried the volume, nothing. I tried to change the channel and it wouldn’t. I tried switching over to am/fm and it wouldn’t. I had to pull over to shut the car off and restart it and it was fine. Any clues? I have a 2012 with nav. Owned it for the last year and a half and have had absolutely no problems with it until now. also it hasn’t been modified in any way, or serviced except for an oil change 3 months ago.