OK.. I did a test and was able to re-create the same thing. It does go to a default with the key alone. I am guessing the computer has no idea what profile to use. This will protect the last users settings.

Not that you would use the key alone that often to really be a bother.... You just have to remember to unlock with the remote to get your settings to be used while of gaining access via comfort access.

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2007 4.8i, Space Gray, Dark Burl Walnut Wood, Black Nevada Leather

Packages:
ZCW Cold Weather, ZPP Premium, ZRC Rear Climate, ZSP Sport, ZTP Technology

Options:
217 Active Steering, 322 Comfort Access, 328 Running Boards, 496 Heated Rear Seats, 610 Heads Up Display, 655 Sat Radio, 840 Increased Top Speed to 150 MPH ,2LE 20" Y Spoke Wheels.

Mods:
Stainless Steel Pedal Pads