The info about the key Fob is correct I found it in Press Kit ON RTL-E and Black Edition models in Press Kit says Driver Preference as explained seating HVAC for specific driver fob. If both are walking up at same time first one their.I just noticed the key fob connection related to seat/mirror settings when my wife got in our 2 day old RTL-E this morning. But you are sayings what... that it also relates to the various customizations each key fob holder may have made to the various system technology settings? Is there somewhere you have seen that documented? And to what settings does it apply... all?
All that begs another question: If you are both riding in the car... and you both have your key fob... how does the system know which fob number customization to apply (fob 1 or 2)? Is it which one was recognized when the door was opened? Would love to know where this information might be found.