Get Driving -> Driving assist systems Guide for Toyota Aygo SUV Second Generation (2015-2021)

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4-6. Using the driving support systems

Driving assist systems

To keep driving safety and performance, the following systems

operate automatically in response to various driving situations.

Be aware, however, that these systems are supplementary and

should not be relied upon too heavily when operating the vehi-

cle.

◆ ABS (Anti-lock Brake System)

Helps to prevent wheel lock when the brakes are applied suddenly,

or if the brakes are applied while driving on a slippery road surface

◆ Brake assist

Generates an increased level of braking force after the brake pedal

is depressed when the system detects a panic stop situation

4

◆ VSC (Vehicle Stability Control)

Helps the driver to control skidding when swerving suddenly or

turning on slippery road surfaces

◆ TRC (Traction Control)

Helps to maintain drive power and prevent the drive wheels from

spinning when starting the vehicle or accelerating on slippery roads

◆ EPS (Electric Power Steering)

Employs an electric motor to reduce the amount of effort needed to

turn the steering wheel

◆ Hill-start assist control

Helps to reduce the backward movement of the vehicle when start-

ing on an uphill

◆ PCS (Pre-Collision system) (if equipped)

P. 217

◆ Emergency brake signal

When the brakes are applied suddenly, the emergency flashers

automatically flash to alert the vehicle behind.

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4-6. Using the driving support systems

When the TRC/VSC systems are operating

The slip indicator light will flash

while the TRC/VSC systems are

operating.

Disabling the TRC system

If the vehicle gets stuck in mud, dirt or snow, the TRC system may

reduce power from the engine to the wheels. Pressing

to turn the

system off may make it easier for you to rock the vehicle in order to

free it.

To turn the TRC system off, quickly press

and release

.

The “TRC OFF” indicator will come on.

Press

on.

again to turn the system back

■Turning off both TRC and VSC systems

To turn the TRC and VSC systems off,

press and hold

for more than 3 sec-

onds while the vehicle is stopped.

The “TRC OFF” indicator and the VSC off

indicator will come on.*

Press

on.

again to turn the system back

*: On vehicles with pre-collision system, pre-collision brake assist and pre-

collision braking will also be disabled. The PCS warning light will come on.

(P. 229)

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has not been

4-6. Using the driving support systems

■When the “TRC OFF” indicator light comes on even if

pressed

TRC is temporary deactivated. If the indicator light continues to remain on,

contact any authorized Toyota retailer or Toyota authorized repairer, or any

reliable repairer.

■Operating conditions of hill-start assist control

When the following four conditions are met, the hill-start assist control will

operate:

●Vehicles with a multi-mode manual transmission: The shift lever is in a posi-

tion other than N (when starting off forward/backward on an upward incline)

●Vehicles with a manual transmission: The shift lever is in a position other

than R when starting off forward on an upward incline, or the shift lever is in

R when starting off backward on an upward incline

●The vehicle is stopped

●The accelerator pedal is not depressed

4

●The parking brake is not engaged

■Automatic system cancelation of hill-start assist control

The hill-start assist control will turn off in any of the following situations:

●Vehicles with a multi-mode manual transmission: The shift lever is shifted to

N

●Vehicles with a manual transmission: The shift lever is shifted to R when

starting off forward on an upward incline, or the shift lever is shifted to other

than R when starting off backward on an upward incline

●The accelerator pedal is depressed

●The parking brake is engaged

●2 seconds at maximum elapsed after the brake pedal is released

■Sounds and vibrations caused by the ABS, brake assist, VSC, TRC and

hill-start assist control systems

●A sound may be heard from the engine compartment when the brake pedal

is depressed repeatedly, when the engine is started or just after the vehicle

begins to move. This sound does not indicate that a malfunction has

occurred in any of these systems.

●Any of the following conditions may occur when the above systems are

operating. None of these indicates that a malfunction has occurred.

ꢀ Vibrations may be felt through the vehicle body and steering.

ꢀ A motor sound may be heard also after the vehicle comes to a stop.

ꢀ The brake pedal may pulsate slightly after the ABS is activated.

ꢀ The brake pedal may move down slightly after the ABS is activated.

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■EPS operation sound

4-6. Using the driving support systems

When the steering wheel is operated, a motor sound (whirring sound) may be

heard. This does not indicate a malfunction.

■Automatic reactivation of TRC and VSC systems

After turning the TRC and VSC systems off, the systems will be automatically

re-enabled in the following situations:

●When the engine switch is turned to the “LOCK” position (vehicles without a

smart entry & start system) or off (vehicles with a smart entry & start sys-

tem).

●If only the TRC system is turned off, the TRC will turn on when vehicle

speed increases

If both the TRC and VSC systems are turned off, automatic re-enabling will

not occur when vehicle speed increases.

■Reduced effectiveness of the EPS system

The effectiveness of the EPS system is reduced to prevent the system from

overheating when there is frequent steering input over an extended period of

time. The steering wheel may feel heavy as a result. Should this occur, refrain

from excessive steering input or stop the vehicle and turn the engine off. The

EPS system should return to normal within 10 minutes.

■Operating conditions of emergency brake signal

When the following three conditions are met, the emergency brake signal will

operate:

●The emergency flashers are off

●Actual vehicle speed is over 55 km/h (35 mph)

●The brake pedal is depressed in a manner that cause the system to judge

from the vehicle deceleration that this is a sudden braking operation

■Automatic system cancelation of emergency brake signal

The emergency brake signal will turn off in any of the following situations:

●The emergency flashers are turned on

●The brake pedal is released

●The system judges from the vehicle deceleration that is not a sudden brak-

ing operation

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4-6. Using the driving support systems

WARNING

■The ABS does not operate effectively when

●The limits of tire gripping performance have been exceeded (such as

excessively worn tires on a snow covered road).

●The vehicle hydroplanes while driving at high speed on wet or slick roads.

■Stopping distance when the ABS is operating may exceed that of nor-

mal conditions

The ABS is not designed to shorten the vehicle’s stopping distance. Always

maintain a safe distance from the vehicle in front of you, especially in the

following situations:

●When driving on dirt, gravel or snow-covered roads

●When driving with tire chains

●When driving over bumps in the road

●When driving over roads with potholes or uneven surfaces

■TRC/VSC may not operate effectively when

4

Directional control and power may not be achievable while driving on slip-

pery road surfaces, even if the TRC/VSC system is operating. Drive the

vehicle carefully in conditions where stability and power may be lost.

■Hill-start assist control does not operate effectively when

●Do not overly rely on hill-start assist control. Hill-start assist control may

not operate effectively on steep inclines and roads covered with ice.

●Unlike the parking brake, hill-start assist control is not intended to hold the

vehicle stationary for an extended period of time. Do not attempt to use

hill-start assist control to hold the vehicle on an incline, as doing so may

lead to an accident.

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4-6. Using the driving support systems

WARNING

■When the TRC/VSC is activated

The slip indicator light flashes. Always drive carefully. Reckless driving may

cause an accident. Exercise particular care when the indicator light flashes.

■When the TRC/VSC systems are turned off

Be especially careful and drive at a speed appropriate to the road condi-

tions. As these are the systems to help ensure vehicle stability and driving

force, do not turn the TRC/VSC systems off unless necessary.

■Replacing tires

Make sure that all tires are of the specified size, brand, tread pattern and

total load capacity. In addition, make sure that the tires are inflated to the

recommended tire inflation pressure level.

The ABS, TRC and VSC systems will not function correctly if different tires

are installed on the vehicle.

Contact any authorized Toyota retailer or Toyota authorized repairer, or any

reliable repairer for further information when replacing tires or wheels.

■Handling of tires and the suspension

Using tires with any kind of problem or modifying the suspension will affect

the driving assist systems, and may cause a system to malfunction.

Driving -> Driving assist systems for Your Toyota Aygo SUV Second Generation (2015-2021)

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