I have a 2015 dart sxt. After I changed my front tires and gave the car a wheel alignment, tpms sensor came on an there is no reading for the front right tire pressure. Air from that my CEL light came on for my ags (active grill shutter). Checking it at autozone, it showed an obstruction in my ags. After cleaning it, the light still came back on. I have no issues with the car and absolutely love it. Just hate seeing lights on the dash. What can I do ?