2004 Lexus IS 300 Owners Manual - Page 138

03 07.09 OCCUPANT RESTRAINT SYSTEMS D Be sure to wear the seat belt without the seat belt extender if you can fasten the seat belt without the extender. D Do not use the seat belt extender when installing a child restraint system on the front or rear passenger seat. If installing a child restraint system with the seat belt extender connected to the seat belt, the seat belt will not securely hold the child restraint system, which could cause death or serious injury to the child or other passengers in the event of collision. SV16050 To connect the extender to the seat belt, insert the tab into the seat belt buckle so that the "PRESS" signs on the buckle release buttons of the extender and the seat belt are both facing outward as shown. You will hear a click when the tab locks into the buckle. When releasing the seat belt, press on the buckle release button on the extender, not on the seat belt. This helps prevent damage to the vehicle interior and extender itself. When not in use, remove the extender and store in the vehicle for future use. 119