Hello fellow journey drivers. I have a concern about my 2015 journey sxt. I recently had the dealership put my snow tires on and since then I have had the check engine light come on twice. The first time I hooked up code reader and it said the engine coolant thermostat was not registering a temp even though thermostat gauge is normal and small screen shows temp is normal running temp. Realized coolant level was low and topped it up and problem went away for two weeks and is now returned. What should I check and is there any common parts that break and should be my first check
thanks