It keeps disconnecting
I got my Rumor 2 to work just fine in my 2010 Santa Fe and my brother has connected his phone to his 2011 Santa Fe. Just follow the directions in the Drivers Manual that came with the vehicle. Works like a charm.
The LG Rumor 2 is currently not part of the list of phones compatible with the 2011 Hyundai Santa Fe. Check compatible phones from the link below.
Link: compatible phones