One problem related to defogger has been reported for the 2004 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota 4Runner based on all problems reported for the 2004 4Runner.
The contact owns a 2004 Toyota 4 runner. The contact stated that while parked, the defroster was activated when the rear window exploded. The vehicle was then taken to an authorized dealer where they advised the contact that the failure was caused by an electrical malfunction in the defroster. The vehicle was then repaired with new components in the defroster. The failure mileage was 97,000 and the current mileage was 98,488.