Got my car from the dealer on Friday after getting my batteries (both) replaced and noticed on the way to work that only the driver side wiper works. Any idea why one wiper would work, especially considering that they are connected to mechanical linkage to a single motor? The linkage looks to be connected. Haven't tried checking the nuts to see if they are tightened down but that is my first thought.

Thanks in advance!

 

Did some inspection at home and found that one of the nuts securing the linkage to the wiper assembly had come loose. A wrench and some loctite and its no longer an issue...