One problem related to horn assembly has been reported for the 2003 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Corolla based on all problems reported for the 2003 Corolla.
Takata recall. The contact owns a 2003 Toyota Corolla. While the vehicle was parked, the horn independently activated. Also, both frontal air bags and seat belt pretensioners deployed inadvertently. No injuries were sustained. A police report was not filed. The vehicle was towed to a dealer, but was not diagnosed or repaired. The manufacturer was notified of the failures. The VIN was included in NHTSA campaign numbers: 15v043000 (air bags) and 15v286000 (air bags). The failure mileage was 273,000.