Lexus GS430 User Manual page 229

Conditions for memorized position activation
D Engine switch in "IG−ON" mode and selector lever in "P"
position, with the vehicle stopped.
D Engine switch in "OFF" mode and within 30 seconds of
opening front passenger's door.
If any seat position memory switch is pushed while one of the
memorized seat position profiles is being activated, the
operation will stop.
To activate the system, push the desired button ("1", "2" or "3")
again.
The seat position memory control system cannot be operated
while the vehicle is moving.
If the vehicle's battery is disconnected, the computer's
memory will be erased and the memorized positions will have
to be set again.
CAUTION
D Do not start the vehicle while the adjustments are
being made.
D Take care not to select the wrong button, or the seat
could strike the rear passenger . If this happens, you
can stop the movement by pressing another driving
position memory switch.
OCCUPANT RESTRAINT SYSTEMS
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