Lexus SC 430 2004 Manual page 116

Adjusting seat position
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Move the control switch in the desired direction.
Releasing the switch will stop the seat in that position. Do not
place anything under the seat, as this might interfere with the
seat movement.
If you push back the seat backward when the seatback
reclined too far backward, the seat will adjust the seatback
angle forward. This function does not work after reconnecting
the battery. In addition, the driving position memory system
does not work in this case. When you push back the seat or
recline the seatback backward, a buzzer sounds to warn that
the rear seat may interfere with the seatback movement.
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.
OCCUPANT RESTRAINT SYSTEMS
2. Move the seatback angle switch forward until a beeping
sound is emitted.
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