If you don't have a paired device the bluetooth icon will not show....
If you have a paired device and no icon, the icon is hidden...
If you have a paired device, there are no hidden icons, and you do not have the bluetooth icon then you have a problem!
Originally Posted by jatfly
I think after a certain amount of time with out using it it disappears, you should be able to go into the options and disable bluetooth and then re-enable it. Then Do a power cycle.