2006 Hyundai Sonata rear subframe is completely rotted again had this replaced in 2014 with the recall! What are the chances Hyundai is going to replace this again? Just looking for opinions!

 

Under some conditions salt,road dust etc., all these hold moisture and let the oxygen in the air do it's work. Unfortunately, we don't appreciate what it does.
If the subframe needs to be replaced again, it would be a good move to coat it with an undercoat material to help slow down this problem.
Frequent undercar washing also helps.. Sometimes we can't win.

 

Hi, I have 2006 azera. it has same problem again like you.
Did hyundai offer you 2nd recall again?