Front passenger occupant classification system

Your vehicle is equipped with a front passenger occupant classification system. This system detects the conditions 1—4 in the table on page 93 and based on these conditions activates or deactivates the following systems;

• Front passenger airbag

• Side airbag on the front passenger seat

• Front passenger's seat belt pretension-er

The system monitors the weight and load on the front passenger seat, and the seat belt buckle switch to determine conditions 1—4.

In order for the system to detect the conditions correctly, do not do any of the following:

• Apply a heavy load to the front passenger seat or equipment (e.g. seatback pocket).

• Attach a commercial seatback table, etc. to the front passenger seat seatback.

• Put weight on the front passenger seat by putting your hands or feet on the seatback from the rear passenger seat.

The "AIRBAG ON" and "AIRBAG OFF" indicator lights indicate the actuation of the front passenger airbag, side airbag on the front passenger seat and front passenger's seat belt pretensioner.

The "AIRBAG OFF" indicator light will be illuminated when the ignition switch is set at ON with the condition 2 in the table shown below.

If the front passenger occupant classification system determines that a person of adult size sits in the front passenger seat but the "AIRBAG OFF" indicator light is illuminated, one of the following is likely to have occurred:

• A rear passenger lifts the front passenger seat cushion with their legs.

• Objects are placed under the front passenger seat.

• The front passenger seatback is in contact with the rear seat.

To ensure the system correctly detects an adult sitting in the front passenger seat, make sure the above do not occur.

Make sure that the "AIRBAG ON" indicator light is illuminated when an adult is seated in the front passenger seat. If the "AIRBAG OFF" indicator light is illuminated, ask the passenger to sit up straight, well back in the seat, and with the seat belt worn correctly. If the "AIRBAG OFF" indicator light 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.

The "AIRBAG ON" and "AIRBAG OFF" indicator lights will be illuminated initially when the ignition switch is set at ON. After about four seconds, they will go off. After that, the front passenger occupant classification system operates and judges which indicator light be illuminated.

The SRS warning and "AIRBAG OFF" indicator lights will come on if there is a malfunction in the front passenger occupant classification system.

Condition and operation in the front passenger occupant classification system

Condition detected by the front passenger occupant classification system

Indicator/warning light

Devices

"AIRBAG ON" and "AIRBAG OFF" indicator lights

SRS warning light

Front passenger's seat belt reminder light

Front passenger alrbag

Side airbag on the front passenger seat

Curtain shield airbag in the front passenger side

Front passenger's seat belt pretensloner

1. Adult*1

"AIRBAG ON"

Off

Flashing* 4

Activated

2. Child*2 or child restraint system*3

"AIRBAG OFF"

Off

Flashing* 4

Deactivated

Activated

Activated

3. Unoccupied

Not illuminated

Off

Off

Deactivated

Deactivated

4. There is a malfunction in the system

"AIRBAG OFF"

On

Off

Deactivated

Activated

* 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: 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.

*3: 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. (See "Child restraint" on page 95 in this Section as for installing the child restraint system.)

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

To avoid potential death or serious injury when the front passenger occupant classification system does not detect the conditions correctly, observe the following.

• Do not recline the front passenger seat seatback so that it interferes with a rear seat as it may cause the "AIRBAG OFF" indicator light be illuminated. If the seatback interferes with the rear seat, return the seatback to a position where it does not interfere with 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.

• Make sure the "AIRBAG ON" indicator light is illuminated when using the seat belt extender for the front passenger seat. If the "AIRBAG OFF" indicator light is illuminated, disconnect the extender tongue from the seat belt buckle, then reconnect the seat belt. Reconnect the seat belt extender after making sure the "AIRBAG ON" indicator light is illuminated. If you use the seat belt extender while the "AIRBAG OFF" indicator light is illuminated, the front passenger airbag and side airbag on the front passenger side may not activate correctly, which could cause death or serious injury in the event of collision.

• If an adult sits in the front passenger seat, the "AIRBAG ON" indicator light should be illuminated. If the "AIRBAG OFF" indicator light 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 "AIRBAG OFF" indicator light 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.

• Wear the seat belt properly.

• Make sure the front passenger's seat belt tab has not been left inserted into the buckle before someone sits in the front passenger seat.

• Do not apply a heavy load to the front passenger seat or equipment (e.g. seatback pocket).

• 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.

• Child restraint systems installed on the rear seat should not contact the front seatbacks.

• When it is unavoidable to install the forward-facing child restraint system on the front passenger seat, install the child restraint system on the front passenger seat in the proper order. (As for the installation order, see "—Child restraint system" on page 97 in this Section.)

• 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 detection system. In this case, contact your Toyota dealer immediately.

The "AIRBAG ON" indicator light may be illuminated (the front passenger airbag and side airbag on the front passenger seat may deploy) even if observing the above cautions, when a child sits in, or a forward-facing child restraint system is installed on the front passenger seat. Refer to all the cautions in "SRS airbags" on page 76 and "Child restraint" on page 95 in this Section.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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