2003 Lexus GS 300 Owners Manual - Page 116

COMFORT ADJUSTMENT CAUTION Do not modify, remove, strike or open the front seat belt pretensioner assemblies, airbag sensor or surrounding area or wiring. Doing any of these may cause sudden operation of the front seat belt pretensioners or disable the system, which could result in death or serious injury. Failure to follow these instructions can result in death or serious injury. Consult your Lexus dealer about any repairs and modifications. " 1 2 3 4 5 6 16G134a Front airbag sensor Front seat belt pretensioner assembly SRS warning light Airbag sensor assembly Occupant detection sensor Seat belt buckle switch NOTICE Do not perform any of the following changes without consulting your Lexus dealer. Such changes can interfere with proper operation of the front seat belt pretensioners in some cases. D Installation of electronic devices such as a mobile two-way radio, cassette tape player or compact disc player. D Repairs on or near the front seat belt retractor assemblies. D Modification of the suspension system. D Modification of the front end structure. D Attachment of a grille guard (bull bar, kangaroo bar, etc.), snowplow, winches or any other equipment to the front end. 95 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 smoke-like gas may be released. This gas is harmless and does not indicate that a fire is occurring. Once the front seat belt pretensioners have been activated, the seat belt retractors remain locked.