2007 Toyota Yaris Owners Manual - Page 390

06 12.21 The seat belt pretensioners are controlled by the airbag sensor assembly. The airbag sensor assembly consists of a safing sensor and airbag sensor. NOTICE Do not perform any of the following changes without consulting your Toyota dealer. Such changes can interfere with proper operation of the seat belt pretensioners in some cases. z Installation of electronic devices such as a mobile two−way radio, cassette tape player or compact disc player z Repairs on or near the front seat belt retractor assemblies z Modification of the suspension system z Modification of the front end structure z Attachment of a grille guard (bull bar, kangaroo bar, etc.), snowplow, winches or any other equipment to the front end z Repairs made on or near the front fenders, front end structure or console PS13533 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. The seat belt pretensioner system consists mainly of the following components and their locations are shown in the illustration. 1. Front airbag sensors 2. SRS warning light 3. "AIRBAG ON" and "AIRBAG OFF" indicator lights 4. Front passenger's switch seat belt buckle CAUTION 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 Toyota dealer about any repair and modification. 5. Front passenger occupant classification system (ECU and sensors) 6. Seat belt pretensioner assemblies 7. Airbag sensor assembly 54 2007 YARIS HATCHBACK from Feb. '07Prod. (OM52754U)