2005 Lexus GX 470 Owners Manual - Page 188

OCCUPANT RESTRAINT SYSTEMS Once the front seat belt pretensioners have been activated, the seat belt retractors remain locked. CAUTION D Do not modify, remove, strike or open the seat belt pretensioner assemblies, airbag sensor or surrounding area or wiring. Failure to follow these instruction may prevent the seat belt pretensioners from activating correctly, cause sudden operation of the system or disable the system, which could result in death or serious injury. Consult your Lexus dealer about any repairs and modifications. D Do not modify or change the suspension system. Such changes may cause the curtain shield airbags to inflate accidentally, which could result in death or serious injury. Consult your Lexus dealer about any repair and modification. D Do not use tires or wheels other than the manufacture's recommended size. Such a use may cause the curtain shield airbags and seat belt pretensioners to inflate accidentally, which could result in death or serious injury. For details, see "Checking and replacing tires" on page 589. " 1 Front airbag sensors 2 Seat belt pretensioner assemblies 3 Front passenger occupant classification system (ECU and sensors) 4 SRS warning light 5 Front passenger's seat belt buckle switch 6 Airbag sensor assembly The front seat belt pretensioner system consists mainly of the above components, and their locations are shown in the illustration. The front seat belt pretensioners are controlled by the airbag sensor assembly. The airbag sensor assembly consists of a safing sensor and airbag sensor. When the front 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. 163