So here's what happened..
I was driving home from work, nice weather, 75 and sunny. I was going about 45 just minding my own business, when I came to a bridge... I cross this bridge twice a day and once I hit the bridge all of a sudden my ACD warning light came on. I didn't know what it was at the time so I pulled over and turned off my car. I turned it back on and it was gone. I decided to keep driving to see if it would come back on and it didn't. I got out the manual and I read what it was and it said that if u pull over and turn off ur car and the light never came back on when u restarted it then "there is no abnormal condition"
Soooo.. u think I'm fine? I thought this was very weird.

 

The manual says you're fine so you're fine.

 

Check your levels just to go on the safe side...