One problem related to dash wiring has been reported for the 2004 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Hyundai Sonata based on all problems reported for the 2004 Sonata.
The contact owns a 2004 Hyundai Sonata. The wires under the hood were melting in the climate control assembly. This is the second time that the climate control assembly has been replaced. As a result, the insulation is melting from the wires and causing them to become bare. The current mileage was 136,000 and failure mileage was 98,000.