I have a 2005 dodge durango. I had trouble with my battery so I got a new one. Before I changed batteries, where my engine lights come on it gave me an ! inside something that looks like a horseshoe. I put the new battery in and it still shows that. It is in between the 20 and 30 mph on the speedometer. My owners manual said it is my headlights thatare on but it they arent, any info on this? thanks, Edward