2003 Lexus LX 470 User Guide 2 - Page 151

COMFORT ADJUSTMENT CAUTION D Do not modify, remove, strike or open the seat belt pretensioner assemblies, airbag sensor or surrounding area or wiring. Doing any of these may cause sudden operation of the seat belt pretensioners or disable the system, which could result in death or serious injury. D Do not use tires or wheels other than the manufacturer'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 367. D Do not place luggage heavier than specified on the roof luggage carrier. Such luggage may cause the curtain shield airbags and seat belt pretensioners to inflate accidentally, which could result in death or serious injury. For details, see "Roof luggage carrier" on page 83. 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. Failure to follow these instructions can result in death or serious injury. Consult your Lexus dealer before performing any repairs and modifications. 16X254a " 1 2 3 4 Seat belt pretensioner assembly SRS warning light Airbag sensor assembly Front airbag sensors The seat belt pretensioner system mainly consists 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 smoke-like gas may be released. This gas is harmless and does not indicate that a fire is occurring. Once the seat belt pretensioners have been activated, the seat belt retractors remain locked. 133