Possibly - though not necessarily.Most likely you battery is low and auto stop start will not engage. not sure of the age of your car but that indicates you cannot use auto stop/start.
It was here recently saying if you have ACC you have set the position of your car too close to the one in front of you. Now, how that shows up when you are just sitting there beats me.
Yes, per my initial post I did check the list of warning icons at the back of the manual and it's not there. Just now I looked up ACC in the Good to Know app and only found what's below, which is not the same icon as it's missing the slash, and my alert is white, not yellow.Did you check owners manual?