If it was realated to the key what happens when both keys are in the car??
I had this on my TL. I had 2 remotes. one was labeled 1 and the other 2. They coincided with the 2 memory buttons in the car. When I unlocked the car everything was adjusted to me and vica versa with my wife.

 

"When I unlocked the car everything was adjusted to me and vica versa with my wife."
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Wow! Now that's a nice feature!

 

Yes it is! I miss that most about the TL. Oh and I miss Xeon headlights too!