One problem related to frame rust has been reported for the 2004 Hyundai XG350. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Hyundai XG350 based on all problems reported for the 2004 XG350.
The contact owns a 2004 Hyundai xg 350. While the vehicle was being serviced, the technician noticed that the rear subframe was rusted and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The approximate failure mileage was 72,000.