Toyota C-HR (2023 year). Manual in english

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4-5. Using the driving support systems

WARNING

●

If the part of the windshield in front of the front camera is fogged up or cov-
ered with condensation, or ice, use the windshield defogger to remove the
fog, condensation, or ice. (



P. 549)

●

If water droplets cannot be properly removed from the area of the wind-
shield in front of the front camera by the windshield wipers, replace the
wiper insert or wiper blade.

●

Do not attach window tint to the windshield.

●

Replace the windshield if it is damaged or cracked.
After replacing the windshield, the front camera must be recalibrated. Con-
tact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer for details.

●

Do not allow liquids to contact the front camera.

●

Do not allow bright lights to shine into the front camera.

●

Do not dirty or damage the front camera.
When cleaning the inside of the windshield, do not allow glass cleaner to
contact the lens of the front camera. Also, do not touch the lens.
If the lens is dirty or damaged, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

●

Do not subject the front camera to a strong impact.

●

Do not change the installation position or direction of the front camera or
remove it.

●

Do not disassemble the front camera.

●

Do not modify any components of the vehicle around the front camera
(inside rear view mirror, etc.) or ceiling.

●

Do not attach any accessories to the hood, front grille or front bumper that
may obstruct the front camera. Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer for details.

●

If a surfboard or other long object is to be mounted on the roof, make sure
that it will not obstruct the front camera.

●

Do not modify the headlights or other lights.

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4-5. Using the driving support systems

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■

If a warning message is displayed on the multi-information display

A system may be temporarily unavailable or there may be a malfunction in
the system.

●

In the following situations, perform the actions specified in the table. When
the normal operating conditions are detected, the message will disappear
and the system will become operational.

If the message does not disappear, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

Situation

Actions

When  the  area  around  a  camera  is
covered  with  dirt,  moisture  (fogged
up,  covered  with  condensation,  ice,
etc.), or other foreign matter

Using the wiper and A/C function,
remove the dirt and other attached
matter. (



P. 549)

When  the  temperature  around  the
front  camera  is  outside  of the  opera-
tional  range,  such  as  when  the  vehi-
cle  is  in  the  sun  or  in  an  extremely
cold environment

If  the  front  camera  is  hot,  such  as
after  the  vehicle  had  been  parked  in
the sun, use the air conditioning sys-
tem  to  decrease  the  temperature
around the front camera.
If  a  sunshade  was  used  when  the
vehicle was parked, depending on its
type,  the  sunlight  reflected  from  the
surface  of  the  sunshade  may  cause
the temperature of the front camera to
become excessively high.

If the front camera is cold, such after
the vehicle is parked in an extremely
cold environment, use the air condi-
tioning system to increase the tem-
perature around the front camera.

The area in front of the front camera
is obstructed, such as when the hood
is open or a sticker is attached to the
part of the windshield in front of the
front camera.

Close the hood, remove the sticker,
etc. to clear the obstruction.

When “Pre-Collision System Radar in
self calibration Unavailable See
owner’s manual.” is displayed.

Check whether there is attached
materials on the radar and radar
cover, and if there is, remove it.

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4-5. Using the driving support systems

●

In the following situations, if the situation has changed (or the vehicle has
been driven for some time) and the normal operating conditions are
detected, the message will disappear and the system will become opera-
tional.

If the message does not disappear, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

• When the temperature around the radar sensor is outside of the opera-

tional range, such as when the vehicle is in the sun or in an extremely
cold environment

• When the front camera cannot detect objects in front of the vehicle, such

as when driving in the dark, snow, or fog, or when bright lights are shining
into the front camera

• Depending on the conditions in the vicinity of the vehicle, the radar may

judge the surrounding environment can not be properly recognized. In
that case, “Pre-Collision System Unavailable See owner’s manual.” is
displayed.

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4-5. Using the driving support systems

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PCS (Pre-Collision System)



: If equipped

The pre-collision system uses a radar sensor and front camera
to detect objects (



P. 368) in front of the vehicle. When the sys-

tem determines that the possibility of a frontal collision with an
object is high, a warning operates to urge the driver to take eva-
sive action and the potential brake pressure is increased to help
the driver avoid the collision. If the system determines that the
possibility of a frontal collision with an object is extremely high,
the brakes are automatically applied to help avoid the collision
or help reduce the impact of the collision.

The pre-collision system can be disabled/enabled and the warning
timing can be changed. (



P. 373)

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4-5. Using the driving support systems

The system can detect the following (The detectable objects differs
depending on the function.):

The countries and areas for each region listed in the table are current
as of August 2020. However, depending on when the vehicle was
sold, the countries and areas of each region may be different. Contact
any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer for details.

Detectable objects and function availability

Regions

Detectable

objects

Function availability

Countries/ areas

• Vehicles
• Bicyclists
• Pedestrians

The pre-collision warning,
pre-collision brake assist,
pre-collision braking,
emergency steering
assist and intersection
right/left turn assistance
are available

Iceland, Albania,
Andorra, Austria,
Belgium, Bosnia and
Herzegovina, Bulgaria,
Canary Islands, Croatia,
Cyprus, Czech Republic,
Denmark, Estonia,
Faroe Islands, Finland,
France, Germany,
Gibraltar, Greece,
Hungary, Ireland, Israel,
Italy, Latvia, Lithuania,
Luxembourg,
Macedonia, Malta,
Monaco, Montenegro,
Netherlands, Norway,
Poland, Portugal,
Romania, Serbia,
Slovakia, Slovenia,
Spain, Sweden,
Switzerland, Turkey,
Ukraine, United
Kingdom

Vehicles

The pre-collision warning,
pre-collision brake assist
and pre-collision braking
are available

Georgia

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4-5. Using the driving support systems

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■

Pre-collision warning

When  the  system  determines
that  the  possibility  of  a  frontal
collision  is  high,  a  buzzer  will
sound and  a  warning  message
will  be  displayed  on  the  multi-
information  display  to  urge  the
driver to take evasive action.

■

Pre-collision brake assist

When the system determines that the possibility of a frontal colli-
sion is high, the system applies greater braking force in relation to
how strongly the brake pedal is depressed.

■

Pre-collision braking

If the system determines that the possibility of a frontal collision is
extremely high, the brakes are automatically applied to help avoid
the collision or reduce the impact of the collision.

■

Emergency steering assist (for region A)

If  the  system  determines  that  the  possibility  of  a  collision  with  a
pedestrian is high and that there is sufficient space for the vehicle
to be steered into within its lane, and the driver has begun evasive
maneuver  or  steering,  emergency  steering  assist  will  assist  the
steering  movements  to  help  enhance  the  vehicle  stability  and  for
lane departure prevention.

System functions

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4-5. Using the driving support systems

■

Intersection right/left turn assistance (for region A)

If the system determines that there is a high possibility of a collision
in the following situations, it will assist with Pre-collision warning
and, if necessary Pre-collision braking.
Depending on the configuration of the intersection, it may not be
possible to support.

●

When you turn right/left at an
intersection and cross the
path of an oncoming vehicle

●

When  you  turn  right/left,
pedestrian  is  detected  in  the
forward  direction  and  esti-
mated to enter your vehicle’s
path  (bicyclists  are  not
detected.)

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WARNING

■

Limitations of the pre-collision system

●

The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
Do not use the pre-collision system instead of normal braking operations
under any circumstances. This system will not prevent collisions or lessen
collision damage or injury in every situation. Do not overly rely on this sys-
tem. Failure to do so may lead to an accident, resulting in death or serious
injury.

●

Although this system is designed to help avoid a collision or help reduce
the impact of the collision, its effectiveness may change according to vari-
ous conditions, therefore the system may not always be able to achieve
the same level of performance.
Read the following conditions carefully. Do not overly rely on this system
and always drive carefully.
• Conditions under which the system may operate even if there is no pos-

sibility of a collision:



P. 378

• Conditions under which the system may not operate properly:



P. 381

●

Do not attempt to test the operation of the pre-collision system yourself.
Depending on the objects used for testing (dummies, cardboard objects
imitating detectable objects, etc.), the system may not operate properly,
possibly leading to an accident.

■

Pre-collision braking

●

When the pre-collision braking function is operating, a large amount of
braking force will be applied.

●

If the vehicle is stopped by the operation of the pre-collision braking func-
tion, the pre-collision braking function operation will be canceled after
approximately 2 seconds. Depress the brake pedal as necessary.

●

The pre-collision braking function may not operate if certain operations are
performed by the driver. If the accelerator pedal is being depressed
strongly or the steering wheel is being turned, the system may determine
that the driver is taking evasive action and possibly prevent the pre-colli-
sion braking function from operating.

●

In some situations, while the pre-collision braking function is operating,
operation of the function may be canceled if the accelerator pedal is
depressed strongly or the steering wheel is turned and the system deter-
mines that the driver is taking evasive action.

●

If the brake pedal is being depressed, the system may determine that the
driver is taking evasive action and possibly delay the operation timing of
the pre-collision braking function.

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4-5. Using the driving support systems

WARNING

■

Emergency steering assist (for region A)

●

As emergency steering assist operation will be canceled when the system
determines that lane departure prevention function has been completed.

●

Emergency steering assist may not operate or may be cancel in the follow-
ing cases as the system may determine the driver is taking actions.
• If the accelerator pedal is being depressed strongly, the steering wheel

is being operated sharply, the brake pedal is being depressed or the
turn signal lever is being operated. In this case, the system may deter-
mine that the driver is taking evasive action and the emergency steering
assist may not operate.

• In some situations, while the emergency steering assist is operating,

operation of the function may be canceled if the accelerator pedal is
depressed strongly, the steering wheel is operated sharply or the brake
pedal is being depressed and the system determines that the driver is
taking evasive action.

• When the emergency steering assist is operating, if the steering wheel

is held firmly or is operated in the opposite direction to that which the
system is generating torque, the function may be canceled.

■

When to disable the pre-collision system

In the following situations, disable the system, as it may not operate prop-
erly, possibly leading to an accident resulting in death or serious injury:

●

When the vehicle is being towed

●

When your vehicle is towing another vehicle

●

When transporting the vehicle via truck, boat, train or similar means of
transportation

●

When the vehicle is raised on a lift with the hybrid system on and the tires
are allowed to rotate freely

●

When inspecting the vehicle using a drum tester such as a chassis dyna-
mometer or speedometer tester, or when using an on vehicle wheel bal-
ancer

●

When a strong impact is applied to the front bumper or front grille, due to
an accident or other reasons

●

If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle has been in an accident or is malfunctioning

●

When the vehicle is driven in a sporty manner or off-road

●

When the tires are not properly inflated

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Enabling/disabling the pre-collision system

The pre-collision system can be enabled/disabled on

(



P. 785)

of the multi-information display.

The system is automatically enabled each time the power switch is
turned to ON mode.

If  the  system  is  disabled,  the
PCS  warning  light  will  turn  on
and  a  message  will  be  dis-
played  on  the  multi-information
display.

WARNING

●

When the tires are very worn

●

When tires of a size other than specified are installed

●

When tire chains are installed

●

When a compact spare tire or an emergency tire puncture repair kit is used

●

If equipment (snow plow, etc.) that may obstruct the radar sensor or front
camera is temporarily installed to the vehicle

Changing settings of the pre-collision system

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4-5. Using the driving support systems

■

Changing the pre-collision warning timing

The pre-collision warning timing can be changed on

(



P. 785)

of the multi-information display.

The warning timing setting is retained when the power switch is turned
off. However, if the pre-collision system is disabled and re-enabled, the
operation timing will return to the default setting (middle).

For region A: If the pre-collision warning timing is changed, emer-
gency steering assist timing will also be changed accordingly.
If late is selected, emergency steering assist would not operate in
case of an emergency.

Early
Middle

This is the default setting.

Late

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■

Operational conditions for each pre-collision function

The pre-collision system is enabled and the system determines that the pos-
sibility of a frontal collision with a detected object is high.
The system may not operate in the following situations:

• If a 12-volt battery terminal has been disconnected and reconnected and

then the vehicle has not been driven for a certain amount of time

• If the shift lever is in R
• When the VSC OFF indicator is illuminated (only the pre-collision warning

function will be operational)

The operation speeds and operation cancellation for each function is listed
below.

●

Pre-collision warning

●

Pre-collision brake assist

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 10 to 180 km/h

(7 to 110 mph)

Approx. 10 to 180 km/h (7

to 110 mph)

For region A: Bicy-

clists and pedestrians

Approx. 10 to 80 km/h

(7 to 50 mph)

Approx. 10 to 80 km/h (7

to 50 mph)

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 30 to 180 km/h

(20 to 110 mph)

Approx. 30 to 180 km/h

(20 to 110 mph)

For region A: Bicy-

clists and pedestrians

Approx. 30 to 80 km/h

(20 to 50 mph)

Approx. 30 to 80 km/h (20

to 50 mph)

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4-5. Using the driving support systems

●

Pre-collision braking

If either of the following occur while the pre-collision braking function is oper-
ating, it will be canceled:

• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.

●

Emergency steering assist (for region A)
When the turn signal lights are flashing, emergency steering assist will not
operate in case of an emergency.

If any of the following occur while the emergency steering assist function is
operating, it will be canceled:

• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 10 to 180 km/h

(7 to 110 mph)

Approx. 10 to 180 km/h (7

to 110 mph)

For region A: Bicy-

clists and pedestrians

Approx. 10 to 80 km/h

(7 to 50 mph)

Approx. 10 to 80 km/h (7

to 50 mph)

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Pedestrians

Approx. 40 to 80 km/h

(25 to 50 mph)

Approx. 40 to 80 km/h (25

to 50 mph)

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●

Intersection right/left turn assistance (pre-collision warning) (for region A)
When the turn signal lights are not flashing, support for turning left or right
at an intersection which targets oncoming vehicles does not work.

●

Intersection right/left turn assistance (pre-collision braking) (for region A)
When the turn signal lights are not flashing, support for turning left or right
at an intersection which targets oncoming vehicles does not work.

Detectable

objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your

vehicle and object

Vehicles

Approx. 10 to

25 km/h (7 to 15

mph)

Approx. 30 to

55 km/h (20 to

35 mph)

Approx. 40 to

80 km/h (25 to

50 mph)

Pedestrians

Approx. 10 to

25 km/h (7 to 15

mph)

Approx. 10 to

25 km/h (7 to

15 mph)

Detectable

objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your

vehicle and object

Vehicles

Approx. 15 to

25 km/h (10 to 15

mph)

Approx. 30 to

45 km/h (20 to

28 mph)

Approx. 45 to

70 km/h (28 to

43 mph)

Pedestrians

Approx. 10 to

25 km/h (7 to 15

mph)

Approx. 10 to

25 km/h (7 to

15 mph)

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4-5. Using the driving support systems

■

Object detection function

The system detects objects based on their size, profile, motion, etc. However,
an object may not be detected depending on the surrounding brightness and
the motion, posture, and angle of the detected object, preventing the system
from operating properly. (



P. 381)

The illustration shows an image of detectable objects.

■

Conditions under which the system may operate even if there is no pos-
sibility of a collision

●

In some situations such as the following, the system may determine that
there is a possibility of a frontal collision and operate.
• When passing a detectable object, etc.
• When changing lanes while overtaking a detectable object, etc.

• When rapidly closing on a detectable object, etc.
• When approaching objects on the roadside, such as detectable objects,

guardrails, utility poles, trees, or walls



Region A



Region B

• When approaching a detectable

object in an adjacent lane or on the
roadside, such as when changing the
course of travel or driving on a wind-
ing road

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• When there are patterns or paint in front of your vehicle that may be mis-

taken for a detectable object

• When the front of your vehicle is hit by water, snow, dust, etc.

• When a detectable object approaches very close and then stops before

entering the path of your vehicle

• If the front of your vehicle is raised or lowered, such as when on an

uneven or undulating road surface

• When driving on a road surrounded by a structure, such as in a tunnel or

on an iron bridge

• When there is a metal object (manhole cover, steel plate, etc.), steps, or a

protrusion in front of your vehicle

• When there is a detectable object or

other object by the roadside at the
entrance of a curve

• When overtaking a detectable object

that is changing lanes or making a
right/left turn

• When passing a detectable object in

an oncoming lane that is stopped to
make a right/left turn

• When passing under an object (road

sign, billboard, etc.)

Toyota C-HR (2023 year). Manual in english - page 18