Lexus SC 430 2004 Manual page 166

Recalling the memorized position
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When you push button "1" or "2", the signal beeps and the
driving position automatically adjusts to the position
recorded for that button.
Conditions for memorized position activation
Driver's side:
D Ignition switch "ON" and selector lever in "N" or "P" position
with the vehicle stopped.
All parts of the memorized positions can be activated.
D Ignition switch off and within 30 seconds of opening driver's
door.
The memorized position can be activated, except for the tilt
and telescopic steering.
OCCUPANT RESTRAINT SYSTEMS
Front passenger's side:
D Ignition switch "ON" and selector lever in "N" or "P" position
with the vehicle stopped.
D Within 30 seconds of opening front passenger's door.
If any driving position memory button is pushed while one of
the memorized driving position profiles is being activated, the
operation will stop.
To activate the system, push the desired button ("1" or "2")
again.
The driving position memory control system cannot be
operated while the vehicle is moving.
If the vehicle's battery is disconnected, this system will not
work and the memory will be erased. The following procedure
must be performed after first reconnecting the battery.
1. Move the seat position control switch forward until a
beeping sound is emitted.
2. Move the seatback angle switch forward until a beeping
sound is emitted.
3. Set the driving position again.
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