I have 2016 Focus ST and have owned it since new. I have been experiencing an intermittent problem with the front wipers since new. The wipers will sometimes work then either just stop in the middle of the glass and just stay there or sometimes they will just stop working all together. I have explained this to the local dealer a few times since it is still under warranty and they have not been able to reproduce the problem. I am concerned because I feel it is a safety concern since it only happens when I need the wipers during a rain or snow event. For instance, today it was snowing and the wipers worked for about 10 minutes then didn't work for the rest of my commute. I pulled into a wawa and turned the car on and off hoping for some type of reset but they were still not responsive. I just tried them, now a few hours later, and they work again. Has anyone experienced this before? Thanks.