2005 Lexus RX 330 Owners Manual - Page 201

OCCUPANT RESTRAINT SYSTEMS SRS DRIVER AIRBAGS AND FRONT PASSENGER AIRBAG In response to a severe frontal impact, the SRS front airbags work together with the seat belts to help reduce injury by inflating. The SRS front airbags deploy when receiving the severe frontal impact that may cause serious injuries to the driver and front passenger. And together with the feature of the seat belts to restrain their bodies, the SRS front airbags help reduce injuries mainly to the driver's and front passenger's heads and chests caused by hitting the vehicle interior. The SRS front passenger airbag will not activate if there is no passenger sitting in the front passenger seat. However, the front passenger airbag may deploy if luggage is put in the seat, or the seat belt is buckled up, regardless of the presence of an occupant in the seat. Always wear your seat belt properly. " 1 Driver airbag 2 Front passenger airbag 3 Driver knee airbag The SRS (Supplemental Restraint System) front airbags are designed to provide further protection for the driver and front passenger in addition to the primary safety protection provided by the seat belts. 170