My passenger-side wing mirror won't stay in place.  It's as if the detent has worn out and the mirror sags toward the back.  This would not be a big deal except that it has messed up the 360 surround cam view.  The cam now has a blind spot toward the back and the view is skewed.  Is there any way to tighten the detent, or am I stuck going to the dealer for a new mirror?
	
		
			
		
		
	
				
			
	
