One problem related to engine overheat has been reported for the 2009 Chevrolet Cobalt. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Chevrolet Cobalt based on all problems reported for the 2009 Cobalt.
I was on the highway driving from new orleans, la to meridian, ms. When I was about 35 miles outside of meridian, ms, my car shut off and a cloud of white smoke came from the engine. None of the indicator lights came on to let me know that there was a problem. I had the 2009 chevy Cobalt towed to the nearest chevy dealer in meridian who told me that the engine was defective and a rod had slipped out of the engine. This took just over two weeks to order the new engine and repair it. The very next day after the engine was repaired, I had the car started but when I went to turn it off, the key was stuck in the ignition. I tried to remove the key but it would not budge. As a result, the engine began to overheat. The tow truck driver had to disconnect the fuses and battery and allow the car to cool before he could tow it.