We just recently had this exact same thing happen to us - very scary. We are in the process of once again working with our local dealership to get these issues resolved. We're continually told that there is no code, so we cannot do anything. We have also opened a case with corporate so hopefully, we will get some resolution. Our Explorer ST is 2021 with ~28k miles on it now. These issues have been ongoing for quite some time and have had the vehicle in the shop now going on 4 times.