Electrical System Related Problems of the 2003 Toyota Tundra

Table 1 shows five common electrical system related problems of the 2003 Toyota Tundra. The number one most common problem is related to the wiring (two problems). The second most common problem is related to the horn assembly (one problem).

Table 1. Electrical System related problems of Toyota Tundra


Recently reported Electrical System problems of the 2003 Toyota Tundra

The Wiring problem

2003 Toyota Tundra. Consumer states problem with vehicle air bags the consumer stated in September, the air bag light started blinking. He took the vehicle to the dealer, where they supposedly fixed the problem at a cost of $ 177. 12. However, that same evening, the light started blinking again.   Read details...

The Horn Assembly problem

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.   Read details...

The Battery problem

Battery drains with all electrical components shut off. If vehicle left sitting much over one week it will completely drain the battery to the point that it will no longer hold a charge. I've replaced the battery 5 times in one year and finally put a quick disconnect on the negative battery post.   Read details...


Electrical System related problems in other Toyota Tundra model year vehicles:



Safety Ratings of Tundra Cars
Fuel Economy of Tundra Vehicles
Tundra Service Bulletins
Tundra Safety Recalls
Tundra Defect Investigations