2005 Toyota Tundra Owners Manual - Page 574

'05 TUNDRA_U (L/O 0504) 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. The seat belt pretensioners will not operate in a vehicle rollover if the "RSCA OFF" indicator light is on. For details, see "Roll sensing of curtain shield airbags off switch" in this Section. The seat belt pretensioner system consists mainly of the following components and their locations are shown in the illustration. 1. Front airbag sensors 2. Separate seat only-Front passenger occupant classification indicator light 3. Separate seat only-Front passenger occupant classification system (ECU and sensors) 4. Seat belt pretensioner assemblies 5. Front passenger's switch 7. SRS warning light 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 instructions 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. 6. Airbag sensor assembly 68 2005 TUNDRA from Apr. '05 Prod. (OM34440U)