Ask a Car Question, Get an Answer ASAP!
is the warning for coolant temp or ambient temperature?
Ok in that case its going to be an faulty ambient temp sensor thats located in front of radiator
you can either reach up form underneath , having removed the undertray or reach in through the grill to disconnect the sensor and clean its connections and check its wiring for damage
if thats OK then replace the sensor as they don't last forever
glad to help
if you wouldn't mind rating my answer please