Get WhenDriving -> 3-6. ABS/TCS/DSC Guide for Toyota Yaris 4 Door Fourth Generation (2021-2026)

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3-6. ABS/TCS/DSC

Antilock Brake System (ABS)

The ABS control unit continuously monitors the speed of each

wheel. If one wheel is about to lock up, the ABS responds by

automatically releasing and reapplying that wheel’s brake.

The driver will feel a slight vibration in the brake pedal and may hear a

chattering noise from the brake system. This is normal ABS system

operation. Continue to depress the brake pedal without pumping the

brakes.

The warning light turns on when the system has a malfunction.

Refer to Contact Your Toyota Dealer and Have Vehicle Inspected on

P. 493.

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●Braking distances may be longer on loose surfaces (snow or gravel, for

example) which usually have a hard foundation. A vehicle with a normal

braking system may require less distance to stop under these conditions

because the tires will build up a wedge of surface layer when the wheels

skid.

●The sound of the ABS operating may be heard when starting the engine or

immediately after starting the vehicle, however, it does not indicate a mal-

function.

WARNING

■Do not rely on ABS as a substitute for safe driving

The ABS cannot compensate for unsafe and reckless driving, excessive

speed, tailgating (following another vehicle too closely), driving on ice and

snow, and hydroplaning (reduced tire friction and road contact because of

water on the road surface). You can still have an accident.

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216

3-6. ABS/TCS/DSC

Traction Control System (TCS)

The Traction Control System (TCS) enhances traction and safety

by controlling engine torque and braking. When the TCS detects

driving wheel slippage, it lowers engine torque and operates the

brakes to prevent loss of traction.

This means that on a slick surface, the engine adjusts automati-

cally to provide optimum power to the drive wheels, limiting

wheel spin and loss of traction.

The warning light turns on when the system has a malfunction.

Refer to Contact Your Toyota Dealer and Have Vehicle Inspected on

P. 493.

To turn off the TCS, press the DSC OFF switch (P. 219).

WARNING

■Do not rely on the Traction Control System (TCS) as a substitute for

safe driving

The Traction Control System (TCS) cannot compensate for unsafe and

reckless driving, excessive speed, tailgating (following another vehicle too

closely), and hydroplaning (reduced tire friction and road contact because

of water on the road surface). You can still have an accident.

■Use snow tires or tire chains and drive at reduced speeds when roads

are covered with ice and/or snow

Driving without proper traction devices on snow and/or ice-covered roads is

dangerous. The Traction Control System (TCS) alone cannot provide ade-

quate traction and you could still have an accident.

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3-6. ABS/TCS/DSC

TCS/DSC Indicator Light

This indicator light stays on for a

few seconds when the ignition is

switched ON. If the TCS or DSC is

operating, the indicator light

flashes.

If the light stays on, the TCS, DSC or the brake assist system may

have a malfunction and they may not operate correctly. Take your

vehicle to your Toyota dealer.

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●In addition to the indicator light flashing, a slight lugging sound will come

from the engine. This indicates that the TCS/DSC is operating properly.

●On slippery surfaces, such as fresh snow, it will be impossible to achieve

high rpm when the TCS is on.

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218

3-6. ABS/TCS/DSC

Dynamic Stability Control (DSC)

The Dynamic Stability Control (DSC) automatically controls

braking and engine torque in conjunction with systems such as

ABS and TCS to help control side slip when driving on slippery

surfaces, or during sudden or evasive maneuvering, enhancing

vehicle safety.

Refer to ABS (P. 215) and TCS (P. 216).

DSC operation is possible at speeds greater than 12 mph (20 km/h).

The warning light turns on when the system has a malfunction.

Refer to Contact Your Toyota Dealer and Have Vehicle Inspected on

P. 493.

WARNING

■Do not rely on the Dynamic Stability Control as a substitute for safe

driving

The Dynamic Stability Control (DSC) cannot compensate for unsafe and

reckless driving, excessive speed, tailgating (following another vehicle too

closely), and hydroplaning (reduced tire friction and road contact because

of water on the road surface). You can still have an accident.

NOTICE

●The DSC may not operate correctly unless the following are observed:

• Use tires of the correct size specified for your Toyota on all 4 wheels.

• Use tires of the same manufacturer, brand and tread pattern on all 4

wheels.

• Do not mix worn tires.

●The DSC may not operate correctly when tire chains are used or a tempo-

rary spare tire is installed because the tire diameter changes.

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3-6. ABS/TCS/DSC

TCS/DSC Indicator Light

This indicator light stays on for a

few seconds when the ignition is

switched ON. If the TCS or DSC is

operating, the indicator light

flashes.

If the light stays on, the TCS, DSC or the brake assist system may

have a malfunction and they may not operate correctly. Take your

vehicle to your Toyota dealer.

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DSC OFF Indicator Light

This indicator light stays on for a

few seconds when the ignition is

switched ON.

It also illuminates when the DSC

OFF switch is pressed and TCS/

DSC is switched off.

Refer to DSC OFF Switch on P. 219.

If the light remains illuminated and the TCS/DSC is not switched off,

take your vehicle to your Toyota dealer. The DSC may have a mal-

function.

DSC OFF Switch

Press the DSC OFF switch to turn

off the TCS/DSC. The DSC OFF

indicator light in the combination

meter will illuminate.

Press the switch again to turn the TCS/DSC back on. The DSC OFF

indicator light will turn off.

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3-6. ABS/TCS/DSC

●When DSC is on and you attempt to free the vehicle when it is stuck, or

drive it out of freshly fallen snow, the TCS (part of the DSC system) will acti-

vate. Depressing the accelerator will not increase engine power and freeing

the vehicle may be difficult. When this happens, turn off the TCS/DSC.

●If the TCS/DSC is off when the engine is turned off, it automatically activates

when the ignition is switched ON.

●Leaving the TCS/DSC on will provide the best traction.

●If the DSC OFF switch is pressed and held for 10 seconds or more, the DSC

OFF switch malfunction detection function operates and the DSC system

activates automatically. The DSC OFF indicator light turns off while the DSC

system is operative.

●If the Low Speed Pre-Collision System operates with the TCS/DSC turned

off, the TCS/DSC becomes operational automatically.

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WhenDriving -> 3-6. ABS/TCS/DSC for Your Toyota Yaris 4 Door Fourth Generation (2021-2026)

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