2017 Camaro SS Humming noise
 

I need some help. A humming noise has been overwhelming on my car rolling at 65 mph on deceleration. The dealer says its uneven tire wear. At this point I have already ruled that out because when I turned it on this morning I was disturbed by this loud humming noise that happens sometimes when I'm driving as well. Dealer cant figure out what it is. Does anyone have any idea on this? This noise is very annoying!!