1999 Lexus LX 470 Owners Manual - Page 196

Fastening front, second and third (outside seats) seat belts 16X017b Adjust the seat as needed and sit up straight and well back in the seat. To fasten your belt, pull it out of the retractor and insert the tab into the buckle. You will hear a click when the tab locks into the buckle. The seat belt length automatically adjusts to your size and the seat position. The retractor will lock the belt during a sudden stop or on impact. It also may lock if you lean forward too quickly. A slow, easy motion will allow the belt to extend, and you can move around freely. When a passenger's shoulder belt is completely extended and is then retracted even slightly, the belt is locked in that position and cannot be extended. This feature is used to hold the child restraint system securely. (For details, see "Child restraint" on page 209.) To free the belt again, fully retract the belt and then pull the belt out once more. If the seat belt cannot be pulled out of the retractor, firmly pull the belt and release it. You will then be able to smoothly pull the belt out of the retractor.