2009 impala ac off engine hot
 

Problem when starting car. Message pops up. Press sensor panel control for odometer, message goes off. Temperature control stays on c. Heat controls work. No leaks, no smoke, sufficient anti freeze. Engine not obviously hot. Reading messages, many owners have problem with vehicles. Recently had radiator replaced. No warning that coolant was liw or probkem other than when saw steam coming from hood. Any advise