Toyota LEXUS LS430 2005 Manual page 240

2. While pushing the "SET" button, push button "1", "2"
or "3" until the signal beeps.
The beep sound means that the positions are recorded in the
computer's memory.
By repeating these two steps and pressing the remaining
button, the driving position for another driver can be recorded.
To set a new memorized position, select the desired position
and perform step 2. The previous memory will be erased and
the new position will be set.
To make only slight changes to an already memorized position,
the easiest way is to first activate the memorized position, then
make the desired changes and perform step 2 above.
OCCUPANT RESTRAINT SYSTEMS
Recalling the memorized position
16L300
When you push button "1", "2" or "3", the driving position
will be automatically adjusted to the position recorded for
that button.
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