Bought my 2015 XL screw, 3.5L Eco, FX4, tow and sport package about a month ago brand new. I noticed from the start that the horn was louder than any other vehicle I have owned. I didn't think much about it at the time but now the horn is so muffled that if I use it with the windows rolled up it is barely audible. Is this a common problem/easy to fix or should I take it in and have ford warranty it

 

I would start by checking the horn to see if anything is in it. I have had bugs and birds clog stuff before. If the horn looks ok I would take it in and see what the dealer says.

 

dual tone horn, one has gone out.