One problem related to horn assembly has been reported for the 2003 Toyota Tundra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Toyota Tundra based on all problems reported for the 2003 Tundra.
Spiral cable, also called clockspring, failed, identical to other Toyota spiral cable failures on other models that were recalled. Another recall needs to be issued that corrects this dangerous problem (it disables the driver airbag and horn) for affected Tundra models.
| Wiring problems | |
| Horn Assembly problems | |
| Battery problems | |
| Electrical System problems | |
| Ignition problems |