Ford 1999 Taurus Owner's Manual page 129

When you use the remote entry UNLOCK, TRUNK
or PANIC buttons, the illuminated entry system
turns on the interior lights for 25 seconds. You can
turn these lights off with the LOCK button or by
turning the ignition to the RUN position.
Memory Seat/Mirrors/Steering Column
Feature
Your vehicle allows the remote keyless entry system
to control the Memory Seat/Mirrors/Steering
Column feature. With this feature, each of the first
two transmitters programmed will recall a different
seat position.
Pressing the transmitter UNLOCK button once will
unlock the driver's door and move the seat to its
corresponding memory seat/mirrors position, just as
if you had pressed the memory button in the
vehicle.
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When your dealer programs new transmitters, the
order of programming controls seat recall as follows:
First Transmitter Programmed — Recall
Seat/Mirrors/Steering Column Position #1
Second Transmitter Programmed — Recall
Seat/Mirrors/Steering Column Position #2
Third Transmitter Programmed — NO
Recall/Memory Seat/Mirrors/Steering Column
(allows only three positions)
You may change seat/mirrors positions at any time.
Once programmed, Transmitter #1 will always
move the seat/mirrors/steering column to position
#1.
The feature is turned on at the factory for your
convenience. You can deactivate the system by
using the OFF button or switching the key fob
switch to OFF.