2013 renegade radiator fan

Hi everyone this is my 1st post I just bought a used 2013 renegade and sitting at idle the limp mode temperature warning came on so I cleaned the radiator and if you stayed moving it was fine but at idle it came on again so I checked my antifreeze and it was good and I was gonna check the fuses when I reached down and tried spinning the fan by hand and it would not budge so unless I am mistaken the fan is locked up I know the car fans I have replaced in the past you could spin with 1 finger with the car off any advice or input would be appreciated being my 1st night with can am I already have a problem 🙁