NHTSA Complaint #11520018 — 2018 JEEP COMPASS

While driving the "coolant temperature high" warning message occasionally pops up and it shows that the temperature is as high as it can go on the temperature meter. It will then shut my engine down and not allow me to resume driving until I completely turn my car off and back on again. After turning it back on, my coolant temperature always reads completely normal between 190-200 degrees Fahrenheit. This problem has occurred multiple times including while I have been on the interstate, in the middle of an intersection, and in heavy traffic. My safety has been severely put at risk multiple times as my car has stopped moving while I was in the process of turning in an intersection and risked being hit from behind and from the side. I have also been in heavy interstate traffic and have been unable to pull-over before my car fully stops moving which puts me at high risk of being hit. I have taken my car to the dealership to have it looked at and they ran diagnostics which showed that there has never been an issue with my coolant system. They have since done an electrical diagnostic as well with which they could not find an issue relating to the coolant system. They replaced my auxiliary battery as they believed it was bad and could have been the cause of my electrical issues and this seemed to cause the issue to go away for a month and a half, but then it started occurring again. The issue also occurs very spontaneously and I have not noticed any signs prior to the issue occurring. Given that it could potentially be days, weeks, or a month before the issue reoccurs, the dealership has not been able to witness the error message or what happens. This issue has occurred on and off for about a year and a half but has started occurring more frequently lately with about seven occurrences in the past five months, the most recent being a significant concern for my safety with my car stopping in an intersection while turning during rush hour.