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Toyota Sienna 2010-2019 Owners Manual: Front passenger occupant classification system

Toyota Sienna 2010-2019 Owners Manual / For safety and security / For safe use / Front passenger occupant classification system

Your vehicle is equipped with a front passenger occupant classification system. This system detects the conditions of the front passenger seat and activates or deactivates the devices for the front passenger.

Toyota Sienna. Front passenger occupant classification system


  1. SRS warning light
  2. Seat belt reminder light
  3. “AIR BAG OFF” indicator light
  4. “AIR BAG ON” indicator light

Condition and operation in the front passenger occupant classification system

Toyota Sienna. Condition and operation in the front passenger occupant classification system


Toyota Sienna. Condition and operation in the front passenger occupant classification system


Toyota Sienna. Unoccupied


Toyota Sienna. There is a malfunction in the system


*1: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may recognize him/her as a child depending on his/her physique and posture.

*2: In the event the front passenger is wearing a seat belt.

*3: In the event the front passenger does not wear a seat belt.

*4: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/her as an adult depending on his/her physique or posture.

*5: Never install a rear-facing child restraint system on the front passenger seat. A forward-facing child restraint system should only be installed on the front passenger seat when it is unavoidable. *6: In case the indicator light is not illuminated, consult this manual on how to install the child restraint system properly. *7: In the event of a side collision.

*8: In the event of a frontal collision or rollover.

WARNING

Front passenger occupant classification system precautions

Observe the following precautions regarding the front passenger occupant classification system.

Failure to do so may cause death or serious injury.

  • Wear the seat belt properly.
  • Make sure the front passenger’s seat belt plate has not been left inserted into the buckle before someone sits in the front passenger seat.
  • Make sure the “AIR BAG OFF” indicator light is not illuminated when using the seat belt extender for the front passenger seat. If the “AIR BAG OFF” indicator light is illuminated, disconnect the extender tongue from the seat belt buckle, and reconnect the seat belt. Reconnect the seat belt extender after making sure the “AIR BAG ON” indicator light is illuminated. If you use the seat belt extender while the “AIR BAG OFF” indicator light is illuminated, the SRS airbags for the front passenger will not activate, which could cause death or serious injury in the event of a collision.
  • Do not apply a heavy load to the front passenger seat or equipment (e.g.

    Seatback pocket or armrest).

  • Do not put weight on the front passenger seat by putting your hands or feet on the front passenger seat seatback from the rear passenger seat.
  • Do not let a rear passenger lift the front passenger seat with their feet or press on the seatback with their legs.
  • Do not put objects under the front passenger seat.

Front passenger occupant classification system precautions

  • Do not recline the front passenger seatback so far that it touches a rear seat. This may cause the “AIR BAG OFF” indicator light to be illuminated, which indicates that the SRS airbags for the front passenger will not activate in the event of a severe accident. If the seatback touches the rear seat, return the seatback to a position where it does not touch the rear seat. Keep the front passenger seatback as upright as possible when the vehicle is moving. Reclining the seatback excessively may lessen the effectiveness of the seat belt system.
  • If an adult sits in the front passenger seat, the “AIR BAG ON” indicator light is illuminated. If the “AIR BAG OFF” indicator is illuminated, ask the passenger to sit up straight, well back in the seat, feet on the floor, and with the seat belt worn correctly. If the “AIR BAG OFF” indicator still remains illuminated, either ask the passenger to move to the rear seat, or if that is not possible, move the front passenger seat fully rearward.
  • When it is unavoidable to install a forward-facing child restraint system on the front passenger seat, install the child restraint system on the front passenger seat in the proper order.
  • Do not modify or remove the front seats.
  • Do not kick the front passenger seat or subject it to severe impact. Otherwise, the SRS warning light may come on to indicate a malfunction of the front passenger occupant classification system. In this case, contact your Toyota dealer immediately.
  • Child restraint systems installed on the rear seat should not contact the front seatbacks.
  • Do not use a seat accessory, such as a cushion and seat cover, that covers the seat cushion surface.
  • Do not modify or replace the upholstery of the front seat.
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of severe impacts that may cause significant injury to the occupants. They work together with the seat belts to help reduce th ...

Safety information for children
Observe the following precautions when children are in the vehicle. Use a child restraint system appropriate for the child, until the child becomes large enough to properly wear the vehicle’s se ...

Other materials:

Input instructions
(a) The general VIN input instructions using the intelligent tester are shown below: (b) The arrow buttons (UP, DOWN, RIGHT and LEFT) and numerical buttons (0 to 9) are used to input the VIN. (c) Cursor Operation To move the cursor around the tester screen, press the RIGHT and LEFT buttons. ...

Rear Door ECU LH Communication Stop
DTC B1217 Rear Door ECU LH Communication Stop DESCRIPTION DTC B1217 is output when communication between the power slide door ECU LH and the multiplex network gateway ECU stops for more than 10 seconds. DTC No. DTC Detection Condition Trouble Area B1217 ...

Mobile Assistant
The Mobile Assistant feature will activate Apple’s Siri® Eyes Free mode via the steering wheel switches. To operate the Mobile Assistant, a compatible cellular phone must be registered and connected to this system via Bluetooth®. Press and hold the until you hear the beeps ...

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