One problem related to wiring has been reported for the 2003 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Highlander based on all problems reported for the 2003 Highlander.
Electrical short in headliner between sun roof and sun visor. Burn mark 5-6 inches long through headliner. No fire or flames but could smell strong odor of smoke.
| Electrical System problems | |
| Fuses And Circuit Breaker problems | |
| Wiring problems |