Get EssentialSafetyEquipment -> How the SRS Air Bags Work Guide for Toyota Yaris 4 Door Fourth Generation (2021-2026)

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1-4. SRS Air Bags

How the SRS Air Bags Work

Your Toyota is equipped with the following types of SRS air

bags. SRS air bags are designed to work together with the seat

belts to help to reduce injuries during an accident. The SRS air

bags are designed to provide further protection for passengers

in addition to the seat belt functions. Be sure to wear seat belts

properly.

◆ Front Seat Belt Pretensioners

The front seat belt pretensioners are designed to deploy in moder-

ate or severe frontal, near frontal collisions.

In addition, the pretensioners operate when a side collision or a roll-

over accident is detected. The pretensioners operate differently

depending on what types of air bags are equipped. For more details

about the seat belt pretensioner operation, refer to the SRS Air Bag

Deployment Criteria (P. 78).

◆ Driver Air Bag

The driver’s air bag is mounted in the steering wheel.

When air bag crash sensors

detect

a

frontal impact of

greater than moderate force,

the driver’s air bag inflates

quickly helping to reduce injury

mainly to the driver’s head or

chest caused by directly hitting

the steering wheel.

For more details about air bag deployment, refer to “SRS Air Bag

Deployment Criteria” (P. 78).

The driver’s dual-stage air bag controls air bag inflation in two

energy stages. During an impact of moderate severity, the driver’s

air bag deploys with lesser energy, whereas during more severe

impacts, it deploys with more energy.

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75

1-4. SRS Air Bags

◆ Front Passenger Air Bag

The front passenger air bag is mounted in the front passenger

dashboard.

The inflation mechanism for the

front passenger air bag is the

same as the driver’s air bag, as

mentioned above.

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For more details about air bag

deployment, refer to “SRS Air

Bag Deployment Criteria”

(P. 78).

In addition, the front passenger air bag is designed to only deploy in

accordance with the total seated weight on the front passenger

seat. For details, refer to the front passenger occupant classifica-

tion system (P. 82).

◆ Side Air Bags

The side air bags are mounted in the outboard sides of the front

seatbacks.

When the air bag crash sensors

detect a side impact of greater

than moderate force, the sys-

tem inflates the side air bag

only on the side in which the

vehicle was hit. The side air

bag inflates quickly to reduce

injury to the driver or front pas-

senger’s chest caused by

directly hitting interior parts

such as a door or window.

For more details about air bag deployment, refer to “SRS Air Bag

Deployment Criteria” (P. 78).

In addition, the front passenger side air bag is designed to only

deploy when the front passenger occupant classification sensor

detects a passenger sitting on the front passenger’s seat. For

details, refer to the front passenger occupant classification system

(P. 82).

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1-4. SRS Air Bags

◆ Curtain Air Bags

The curtain air bags are mounted in the front and rear window pil-

lars, and the roof edge along both sides.

When the air bag crash sensors detect a side impact of greater

than moderate force, the curtain air bag inflates quickly and helps to

reduce injury mainly to the rear outboard passenger’s head caused

by directly hitting interior parts such as a door or window.

For more details about air bag deployment, refer to “SRS Air Bag

Deployment Criteria” (P. 78).

 In a side impact

Greater than moderate impact to one side of the vehicle will cause

the curtain air bag on that side only to inflate.

Only one side curtain air bag

will deploy on the side of the

vehicle that receives the force

of an impact.

 In a roll-over

In response to a vehicle roll-over, both curtain air bags inflate.

Both curtain air bags will deploy

after the roll-over accident is

detected.

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1-4. SRS Air Bags

◆ Warning Light/Beep

A system malfunction or operation conditions are indicated by a

warning.

Refer to Warning/Indicator Lights on P. 173.

Refer to Warning Sound is Activated on P. 502.

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YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)

EssentialSafetyEquipment -> How the SRS Air Bags Work for Your Toyota Yaris 4 Door Fourth Generation (2021-2026)

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