“Hood open” message won’t go away on 2011 CTS
 

I have a 2011 cts sedan, after I’ve washed the car I get this annoying “hood open” message that won’t go away, i’ve tried opening and closing the hood, its completely closed and latched. the problem with the message is that when its on I can’t turn on the fog lights !

How can i fix this ? And why won’t the fog lights turn on when this happens ?