From 2006 DTS Manual:
"MEMORY SEAT RECALL
If the vehicle has this feature, it allows you to select
your preference for the memory seat recall feature. See
Memory Seat, Mirrors and Steering Wheel on
page 2-51 for more information.
Press the customization button until MEMORY SEAT
RECALL appears in the display. Press the set/reset
button to access the settings for this feature. Then
press the menu up/down button to scroll through the
following settings:
OFF (default): No memory seat recall will occur.
ON: The driver’s seat will automatically move to the
stored driving position when the unlock button on
the remote keyless entry transmitter is pressed.
NO CHANGE: No change will be made to this feature.
The current setting will remain.
Choose one of the available settings and press the
set/reset button while it is displayed on the DIC to
select it."