Hi,
I own a Sonata hybrid equipped with a 2L petrol engine.
I am not from USA.
I suspect that US recall 198 involves engines of the same type I have (2.0L petrol G4NG made in Korea).
Local agent wouldn't check with Hyundai hq.
In order to be sure, should your vehicle had this recall, please provide your engine type.

 

https://static.nhtsa.gov/odi/rcl/202...0V746-7654.pdf

Here is something related to your question. Hyundai's website for the recall is not working at present.