One problem related to defogger heater has been reported for the 2003 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Honda Civic based on all problems reported for the 2003 Civic.
When the heat control was set to maximum, even if the radio was playing low, one could not hear any outside noise, such as horn blowing or other warning devices.