Havig the identical problem with a 2013 300H. I will sych only some of my GALAXY S-III contacts without any correlation between how they're saved top the phone, when they were entered, or how they were entered.
Dealer's techie in Clearwater FL tried his phone, and it did the same thing with his contacts list. Dealer tried to blame Verizon, who blamed Bluetooth, who all said it's LEXUS PROBLEM. They claim they can solve it at the 5000 service, but I sure don't know how witout complete;ly updating their software.
And while they do that. they need to update the VOICE RECOGNITION and WEATER SCREENS!!
Truly disappointing for a $50K vehicle!!