TOYOTA YARIS 2021 Owners Manual
Manufacturer: TOYOTA, Model Year: 2021, Model line: YARIS, Model: TOYOTA YARIS 2021Pages: 568, PDF Size: 110.34 MB
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4-5. Using the driving support systems
Driving
tions may be generated from the brake
system, but this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunc- tion.
■Automatic reactivation of TRC, Trailer Sway Control and VSC sys-
tems
After turning the TRC, Trailer Sway Con- trol and VSC systems off, the systems
will be automatically re-enabled in the following situations:
●When the engine switch is turned off
●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.
■Operating conditions of Active Cor-
nering Assist
The system operates when the following occurs.
●TRC/VSC can operate
●The driver is attempting to accelerate while turning
●The system detects that the vehicle is drifting to the outer side
●The brake pedal is released
■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 nor-mal within 10 minutes.
■Operating conditions of emergency
brake signal
When the following conditions are met, the emergency brake signal will oper-
ates:
●The emergency flashers are off
●Actual vehicle speed is over 55 km/h (35 mph)
●The system judges from the vehicle deceleration that it is a sudden brak-
ing operation.
■Automatic system cancelation of emergency brake signal
The emergency brake signal will be can-
celed in any of the following situations:
●The emergency flashers are turned
on.
●The system judges from the vehicle
deceleration that is not a sudden brak- ing operation.
■Secondary Collision Brake operat-ing conditions
The system operates when the SRS air- bag sensor detects a collision while the vehicle is in motion.
However, the system does not operate when components are damaged.
■Secondary Collision Brake auto-matic cancelation
The system is automatically canceled in any of the following situations.
●The vehicle speed drops approxi-mately 0 km/h (0 mph)
●A certain amount of time elapses during operation
●The accelerator pedal is depressed a large amount
WARNING
■The ABS does not operate effec-
tively when
●The limits of tire gripping perfor- mance have been exceeded (such
as excessively worn tires on a snow covered road).
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4-5. Using the driving support systems
WARNING
●The vehicle hydroplanes while driv- ing at high speed on wet or slick
roads.
■Stopping distance when the ABS
is operating may exceed that of normal 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 pot-holes or uneven surfaces
■TRC/VSC may not operate effec-tively when
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.
■Active Cornering Assist does not
operate effectively when
●Do not overly rely on Active Corner- ing Assist. Active Cornering Assist
may not operate effectively when accelerating down slopes or driving on slippery road surfaces.
●When Active Cornering Assist fre-quently operates, Active Cornering
Assist may temporarily stop operat- ing to ensure proper operation of the brakes, TRC and VSC.
■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 con-
trol to hold the vehicle on an incline, as doing so may lead to an acci-dent.
■When the TRC/VSC/Trailer Sway Control 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/Trailer Sway
Control 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 driv-ing force, do not turn the
TRC/VSC/Trailer Sway Control sys- tems off unless necessary.Trailer Sway Control is part of the
VSC system and will not operate if VSC is turned off or experiences a malfunction.
■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 pres- sure level.The ABS, TRC Trailer Sway Control
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.
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4-5. Using the driving support systems
Driving
WARNING
■Handling of tires and the suspen- sion
Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may
cause a system to malfunction.
■Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situations. Depending on many fac-
tors such as the conditions of the vehicle, trailer, road surface and driv-ing environment, the Trailer Sway
Control system may not be effective. Refer to your trailer owner’s manual for information on how to tow your
trailer properly.
■If trailer sway occurs
Observe the following precautions. Failing to do so may cause death or serious injury.
●Firmly grip the steering wheel. Steer straight ahead. Do not try to
control trailer sway by turning the steering wheel.
●Begin releasing the accelerator pedal immediately but very gradu-ally to reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehi-cle and trailer should stabilize.
( →P.152)
■Secondary Collision Brake
Do not rely solely upon the Secondary Collision Brake. This system is designed to help reduce the possibil-
ity of further damage due to a second- ary collision, however, that effect changes according to various condi-
tions. Overly relying on the system may result in death or serious injury.