Ginger

I recently had to replace the battery in my 2011 Ford Edge Limited. I was stranded and did not use a Ford dealeship to replace the battery. Since replacing it a warning light "Service Advance Trac" keeps coming on and staying on. I followed instructions from the manual to try to fix the problem, but it stays in the off position and will not go back into the on position. Any suggestions as to what is going on and how it can be fixed?