Two problems related to engine cooling system have been reported for the 2009 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Toyota Corolla based on all problems reported for the 2009 Corolla.
When driving on I-355, many dashboard lights went up and car temperature is very high too. It is a brand new Toyota Corolla (<2000 miles). Had to tow it to the dealer and was told that a rodent chewed up ac and coolant tubes. Never heard of it. What a lousy design or parts that attract rodents.
Our 2007 Toyota Corolla has a failure in the air conditioning system. After the winter, the a/c was turned on and it would not cool. Freon was put into the system and it cooled down again. However, a hissing noise was coming from the car after putting in the freon. Turns out there is a leak in the air conditioner's condenser. The TSB on the 2003 - 3005 Corolla indicated there was a problem with the air conditioning system. Supposedly, Toyota corrected this problem on future Corolla's, but evidently there is still a problem with it. We are having the condenser replaced.