Suburban 2015 NY

i have the radio station popping up on the dic as well. change back to the info for the speed to be shown but does not stay. Now the screen jumps to the clock but can't change the date. (which is showing Feb even though it is october!! Now my bluetooth is not reconizing my contacts and when I make a call the caller cant hear me!! What is shot,radio??? Help with this would be appriecated!! Thanks