2006 Lexus LX 470 Owners Manual - Page 153

OCCUPANT RESTRAINT SYSTEMS CAUTION D Make sure the roll sensing of curtain shield airbags off indicator light is not on. D When the roll sensing of curtain shield airbags off switch is turned on (and the roll sensing of curtain shield airbags off indicator light is on), the seat belt pretensioners will not operate in a vehicle rollover and turning off the seat belt pretensioners can reduce the occupant protection which your vehicle safety systems can provide to you in certain accidents and increase the likelihood of death or serious personal injuries. 16X676a " 1 Airbag sensor assembly 2 Front passenger occupant classification system (ECU and sensors) 3 SRS warning light 4 Front passenger's seat belt buckle switch 5 Seat belt pretensioner assemblies 6 Front airbag sensors The seat belt pretensioner system consists mainly of the above components, and their locations are shown in the illustration. The seat belt pretensioners are controlled by the airbag sensor assembly. The airbag sensor assembly consists of a safing sensor and airbag sensor. When the seat belt pretensioners are activated, an operating noise may be heard and a small amount of non−toxic gas may be released. This does not indicate that a fire is occurring. This gas is normally harmless. Once the seat belt pretensioners have been activated, the seat belt retractors remain locked. 131