Two problems related to defogger have been reported for the 2002 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Chevrolet Tahoe based on all problems reported for the 2002 Tahoe.
The blower has gone twice (first time was Jan 2003) since owning vehicle, it suddenly stops working especially at low temperatures (under 32f). Defogger system does not work. Dealership has fixed problem twice. Back blower works fine.
Outside air is able to enter the vehicle although the vents are closed and the fan is off. Nlm.