2004 Toyota Sienna Owners Manual - Page 104

04 SIENNA_U (L/O 0408) -Front seat belt pretensioners CAUTION Make sure the belt is not twisted and that it lies flat. The driver and front passenger's seat belt pretensioners are designed to be activated in response to a severe frontal impact. When the airbag sensor detects the shock of a severe frontal impact, the front seat belts are quickly drawn back in by the retractors so that the belts snugly restrain the front seat occupants. The front seat belt pretensioners are activated even with no passenger in the front seat. The seat belt pretensioners and SRS airbags may not operate together in case of collisions at certain speeds and angles. This indicator comes on when the ignition key is turned to the "ON" position. It goes off after about 6 seconds. This means the front seat belt pretensioners are operating properly. This warning light system monitors the airbag sensor assembly, front airbag sensors, side and curtain shield airbag sensors, curtain shield airbag sensors, driver's seat position sensor, driver's seat belt buckle switch, front seat belt pretensioner assemblies, inflators, warning light, interconnecting wiring and power sources. (For details, see "Service reminder indicators and warning buzzers" on page 167 in Section 1−5.) 104 2004 SIENNA from Aug. '04 Prod. (OM45422U)