pickles

First, I wanted to say hello and thank you for the opportunity to ask a question. My husband and I own a 98 forester, on which he cleaned the negative terminal on the battery. Upon doing this, the hazard lights would not go off, but they were not turned on. He checked the fuses, which were all good. Any other suggestions? Thanks for the time. Oh, by the way, I love my forester, it is a great car. I told my husband that next time if it is not broken, do not fix it.