Have a 2021 Telluride S. No problems till yesterday when all of a sudden my lane assist stopped working. Washed car as I know where sensors are but still stops working after driving for about 3 minutes in areas where I know it worked previously. Periodically I had issues with the Forward Collision sometimes going off message saying something about radar. Not really conceerned with the Forward collision but I definitely want the lane assist. What else could be wrong besides signal being blocked by dirt?