Lexus 2003 LS Owner's Manual page 126

COMFORT ADJUSTMENT
16L259

For passenger's seat
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.
112
Adjusting seatback angle
16L260a
Move the control switch in the desired direction.
Releasing the switch will stop the seatback in that position.
CAUTION
To reduce the risk of sliding under the lap belt during a
collision, avoid reclining the seatback any more than
needed. The seat belts provide maximum protection in
a frontal or rear collision when the driver and the
passenger are sitting up straight and well back in the
seats. If you are reclined, the lap belt may slide past
your hips and apply restraint forces directly to the
abdomen. In the event of a frontal collision, the more the
seat is reclined, the greater the risk of personal injury.