1999 Lexus SC 300 Owners Manual - Page 118

COMFORT ADJUSTMENT CAUTION This vehicle is equipped with two seat belts in the rear seat. For the safety of passengers, do not let three people ride in the rear seat. After passengers are in, return the seatback until it locks. The seat will then automatically slide rearward. The amount of seat movement varies with the original seat position. Do not place anything under the seat. It might interfere with the seat movement. In the following cases, automatic forward or rearward movement will not be performed or will be cancelled partway: 1. The seat position control switch is operated. 100 2. The seatback is lifted up or inclined while the seat is moving. 3. The passenger's seat belt is used. 4. There is not enough room to move forward or rearward.