One problem related to defogger has been reported for the 2003 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chevrolet Tahoe based on all problems reported for the 2003 Tahoe.
Front passenger side vents blow out hot air when heater or a/c is on. . Temp was checked and it was higher than 150 degrees. . . Very very hot.