One problem related to catalytic convertor has been reported for the 2003 Kia Motor RIO. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Kia Motor RIO based on all problems reported for the 2003 RIO.
When it rains the vehicle fails to start. Also, the catalytic convertor is giving out a rotten egg odor that comes through the air vents. Dealership was not willing to service the vehicle. They were only saying it takes a year before the smell goes away.