- Buick Ownership
- 2013 Regal T
I was replacing the battery for the first time on my 2013 and noticed that there was a lot of corrosion around the negative battery terminal. Even worse, there is a second cable attached which has been practically worn through probably by rubbing on the battery cover. The wire itself is too thin to actually be the main ground. It is barely hanging by a thread. What is this cable for? Is it hard to fix or replace?