One problem related to horn assembly has been reported for the 2000 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Toyota Sienna based on all problems reported for the 2000 Sienna.
The contact owns a 2000 Toyota Sienna. The contact stated that while driving at approximately 30 mph, the horn would not work properly. The failure recurred on multiple occasions. The vehicle was not taken to a dealer and was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 130,000.