One problem related to engine cooling system has been reported for the 2008 Toyota Yaris. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Toyota Yaris based on all problems reported for the 2008 Yaris.
A chronic problem with water not draining from the a/c condensor owing to a design flaw which causes the water to drain into the passengers side floor. Taken to dealer once, but problem remains same.