Toyota Corolla (2020 year). Owner's manual — part 12

182

4-5. Using the driving support systems

WARNING

■

To avoid malfunction of the

front camera

Observe the following precau-

tions.

Otherwise, the front camera may

not operate properly, possibly

leading to an accident resulting in

death or serious injury.

●

Keep the windshield clean at all

times.

• If the windshield is dirty or cov-

ered with an oily film, water

droplets, snow, etc., clean the

windshield.

• If a glass coating agent is

applied to the windshield, it will

still be necessary to use the

windshield wipers to remove

water droplets, etc. from the

area of the windshield in front of

the front camera.

• If the inner side of the wind-

shield where the front camera is

installed is dirty, contact your

Toyota dealer.

●

Do not attach objects, such as

stickers, transparent stickers,

etc., to the outer side of the

windshield in front of the front

camera (shaded area in the

illustration).

From the top of the windshield
to approximately 0.4 in. (1 cm)
below the bottom of the front
camera
Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. [10 cm]
to the right and left from the
center of the front camera)

●

If the part of the windshield in

front of the front camera is

fogged up or covered with con-

densation, or ice, use the wind-

shield defogger to remove the

fog, condensation, or ice.

(



P.387, 392)

●

If water droplets cannot be

properly removed from the area

of the windshield in front of the

front camera by the windshield

wipers, replace the wiper insert

or wiper blade.

If the wiper inserts or wiper blades
need to be replaced, contact your
Toyota dealer.

●

Do not attach window tint to the

windshield.

●

Replace the windshield if it is

damaged or cracked.

If the windshield needs to be

replaced, contact your Toyota

dealer.

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4-5. Using the driving support systems

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WARNING

●

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 your Toyota dealer.

●

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 your Toy-

ota dealer 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

■

Certification



Except for vehicles sold in Canada



For vehicles sold in Canada

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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 your Toyota dealer.

Situation

Actions

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

To clean the part of the windshield in
front of the front camera, use the
windshield wipers or the windshield
defogger of the air conditioning sys-
tem (P.387, 392).

186

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 your Toyota dealer.

• 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

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.

Situation

Actions

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The system can detect the fol-
lowing:


Vehicles



Bicyclists



Pedestrians

■

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
collision 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 colli-
sion is extremely high, the
brakes are automatically applied
to help avoid the collision or
reduce the impact of the colli-
sion.

PCS (Pre-Collision Sys-

tem)

The pre-collision system
uses a radar sensor and
front camera to detect
objects (P.190) in front of
the vehicle. When the sys-
tem determines that the
possibility of a frontal colli-
sion with an object is high, a
warning operates to urge
the driver to take evasive
action and the potential
brake pressure is increased
to help the driver avoid the
collision. If the system
determines that the possi-
bility of a frontal collision
with an object is extremely
high, the brakes are auto-
matically applied to help
avoid the collision or help
reduce the impact of the col-
lision.

The pre-collision system
can be disabled/enabled
and the warning timing can
be changed. (P.189)

Detectable objects

System functions

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4-5. Using the driving support systems

WARNING

■

Limitations of the pre-colli-

sion system

●

The driver is solely responsible

for safe driving. Always drive

safely, taking care to observe

your surroundings.

Do not use the pre-collision sys-

tem instead of normal braking

operations under any circum-

stances. This system will not

prevent collisions or lessen col-

lision damage or injury in every

situation. Do not overly rely on

this system. Failure to do so

may lead to an accident, result-

ing in death or serious injury.

●

Although this system is

designed to help avoid a colli-

sion 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 sys-

tem may operate even if there is

no possibility of a collision:



P.191

• Conditions under which the sys-

tem may not operate properly:



P.192

●

Do not attempt to test the oper-

ation of the pre-collision system

yourself.

Depending on the objects used

for testing (dummies, card-

board objects imitating detect-

able objects, etc.), the system

may not operate properly, possi-

bly 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 function, the pre-colli-

sion braking function operation

will be canceled after approxi-

mately 2 seconds. Depress the

brake pedal as necessary.

●

The pre-collision braking func-

tion 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-collision braking function

from operating.

●

In some situations, while the

pre-collision braking function is

operating, operation of the func-

tion 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 tak-

ing evasive action and possibly

delay the operation timing of the

pre-collision braking function.

■

When to disable the pre-colli-

sion system

In the following situations, disable

the system, as it may not operate

properly, possibly leading to an

accident resulting in death or seri-

ous injury:

●

When the vehicle is being towed

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Enabling/disabling the
pre-collision system

The pre-collision system can be
enabled/disabled on

(P.548) of the multi-informa-
tion display.

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

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

■

Changing the pre-collision
warning timing

The pre-collision warning timing
can be changed on

(P.548) of the multi-informa-
tion display.

The warning timing setting is
retained when the engine switch is
turned off. However, if the pre-colli-
sion system is disabled and
re-enabled, the operation timing will
return to the default setting (mid-
dle).

WARNING

●

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 engine running and

the tires are allowed to rotate

freely

●

When inspecting the vehicle

using a drum tester such as a

chassis dynamometer or speed-

ometer tester, or when using an

on vehicle wheel balancer

●

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 vehicle has been in an acci-

dent or is malfunctioning

●

When the vehicle is driven in a

sporty manner or off-road

●

When the tires are not properly

inflated

●

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 sen-

sor or front camera is temporar-

ily installed to the vehicle

Changing settings of the
pre-collision system

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4-5. Using the driving support systems

1

Early

2

Middle

This is the default setting.

3

Late

■

Operational conditions

The pre-collision system is enabled and the system determines that the pos-

sibility of a frontal collision with a detected object is high.

Each function is operational at the following speed

●

Pre-collision warning

●

Pre-collision brake assist

●

Pre-collision braking

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 7 to 110 mph

(10 to 180 km/h)

Approx. 7 to 110 mph

(10 to 180 km/h)

Bicyclists and pedestri-

ans

Approx. 7 to 50 mph (10

to 80 km/h)

Approx. 7 to 50 mph (10

to 80 km/h)

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 20 to 110 mph

(30 to 180 km/h)

Approx. 20 to 110 mph

(30 to 180 km/h)

Bicyclists and pedestri-

ans

Approx. 20 to 50 mph

(30 to 80 km/h)

Approx. 20 to 50 mph

(30 to 80 km/h)

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The system may not operate in the following situations:

●

If a 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)

■

Object detection function

The system detects objects based

on their size, profile, motion, etc.

However, an object may not be

detected depending on the sur-

rounding brightness and the motion,

posture, and angle of the detected

object, preventing the system from

operating properly. (P.192)

The illustration shows an image of

detectable objects.

■

Cancelation of the pre-collision

braking

If either of the following occur while

the pre-collision braking function is

operating, it will be canceled:

●

The accelerator pedal is

depressed strongly.

●

The steering wheel is turned

sharply or abruptly.

■

Conditions under which the

system may operate even if

there is no possibility of a colli-

sion

●

In some situations such as the fol-

lowing, the system may determine

that there is a possibility of a fron-

tal collision and operate.

• When passing a detectable object,

etc.

• When changing lanes while over-

taking a detectable object, etc.

• 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 winding road

• When rapidly closing on a detect-

able object, etc.

• When approaching objects on the

roadside, such as detectable

objects, guardrails, utility poles,

trees, or walls

• When there is a detectable object

or other object by the roadside at

the entrance of a curve

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 7 to 110 mph

(10 to 180 km/h)

Approx. 7 to 110 mph

(10 to 180 km/h)

Bicyclists and pedestri-

ans

Approx. 7 to 50 mph (10

to 80 km/h)

Approx. 7 to 50 mph (10

to 80 km/h)

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4-5. Using the driving support systems

• When there are patterns or paint

in front of your vehicle that may be

mistaken for a detectable object

• When the front of your vehicle is

hit by water, snow, dust, etc.

• 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 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 sur-

rounded 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 passing under an object

(road sign, billboard, etc.)

• When approaching an electric toll

gate barrier, parking area barrier,

or other barrier that opens and

closes

• When using an automatic car

wash

• When driving through or under

objects that may contact your

vehicle, such as thick grass, tree

branches, or a banner

• When driving through steam or

smoke

• When driving near an object that

reflects radio waves, such as a

large truck or guardrail

• When driving near a TV tower,

broadcasting station, electric

power plant, or other location

where strong radio waves or elec-

trical noise may be present

■

Situations in which the system

may not operate properly

●

In some situations such as the fol-

lowing, an object may not be

detected by the radar sensor and

front camera, preventing the sys-

tem from operating properly:

• When a detectable object is

approaching your vehicle

• When your vehicle or a detectable

object is wobbling

• If a detectable object makes an

abrupt maneuver (such as sudden

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4-5. Using the driving support systems

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swerving, acceleration or deceler-

ation)

• When your vehicle approaches a

detectable object rapidly

• When a detectable object is not

directly in front of your vehicle

• When a detectable object is near

a wall, fence, guardrail, manhole

cover, vehicle, steel plate on the

road, etc.

• When a detectable object is under

a structure

• When part of a detectable object

is hidden by an object, such as

large baggage, an umbrella, or

guardrail

• When multiple detectable objects

are close together

• If the sun or other light is shining

directly on a detectable object

• When a detectable object is a

shade of white and looks

extremely bright

• When a detectable object appears

to be nearly the same color or

brightness as its surroundings

• If a detectable object cuts or sud-

denly emerges in front of your

vehicle

• When the front of your vehicle is

hit by water, snow, dust, etc.

• When a very bright light ahead,

such as the sun or the headlights

of oncoming traffic, shines directly

into the front camera

• When approaching the side or

front of a vehicle ahead

• If a vehicle ahead is a motorcycle

• If a vehicle ahead is narrow, such

as a personal mobility vehicle

• If a preceding vehicle has a small

rear end, such as an unloaded

truck

• If a preceding vehicle has a low

rear end, such as a low bed trailer

• If a vehicle ahead has extremely

high ground clearance

• If a vehicle ahead is carrying a

load which protrudes past its rear

bumper

• If a vehicle ahead is irregularly

shaped, such as a tractor or side

car

• If a vehicle ahead is a child sized

bicycle, a bicycle that is carrying a

large load, a bicycle ridden by

more than one person, or a

uniquely shaped bicycle (bicycle

with a child seat, tandem bicycle,

etc.)

• If a pedestrian/or the riding height

of a bicyclist ahead is shorter than

approximately 3.2 ft. (1 m) or taller

than approximately 6.5 ft. (2 m)

• If a pedestrian/bicyclist is wearing

oversized clothing (a rain coat,

long skirt, etc.), making their sil-

houette obscure

• If a pedestrian is bending forward

or squatting or bicyclist is bending

forward

• If a pedestrian/bicyclist is moving

fast

• If a pedestrian is pushing a

stroller, wheelchair, bicycle or

other vehicle

• When driving in inclement weather

such as heavy rain, fog, snow or a

sandstorm

194

4-5. Using the driving support systems

• When driving through steam or

smoke

• When the surrounding area is dim,

such as at dawn or dusk, or while

at night or in a tunnel, making a

detectable object appear to be

nearly the same color as its sur-

roundings

• When driving in a place where the

surrounding brightness changes

suddenly, such as at the entrance

or exit of a tunnel

• After the engine has started the

vehicle has not been driven for a

certain amount of time

• While making a left/right turn and

for a few seconds after making a

left/right turn

• While driving on a curve and for a

few seconds after driving on a

curve

• If your vehicle is skidding

• If the front of the vehicle is raised

or lowered

• If the wheels are misaligned

• If a wiper blade is blocking the

front camera

• The vehicle is being driven at

extremely high speeds

• When driving on a hill

• If the radar sensor or front camera

is misaligned

●

In some situations such as the fol-

lowing, sufficient braking force

may not be obtained, preventing

the system from performing prop-

erly:

• If the braking functions cannot

operate to their full extent, such as

when the brake parts are

extremely cold, extremely hot, or

wet

• If the vehicle is not properly main-

tained (brakes or tires are exces-

sively worn, improper tire inflation

pressure, etc.)

• When the vehicle is being driven

on a gravel road or other slippery

surface

■

If VSC is disabled

●

If VSC is disabled (P.252), the

pre-collision brake assist and

pre-collision braking functions are

also disabled.

●

The PCS warning light will turn on

and “VSC Turned OFF Pre-Colli-

sion Brake System Unavailable”

will be displayed on the

multi-information display.

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*

: If equipped

LTA (Lane Tracing

Assist)

*

When driving on highways
and freeways with white
(yellow) lane lines, this
function alerts the driver
when the vehicle might
depart from its lane or
course

*

and provides assis-

tance by operating the
steering wheel to keep the
vehicle in its lane or
course

*

. Furthermore, the

system provides steering
assistance when dynamic
radar cruise control with
full-speed range is operat-
ing to keep the vehicle in its
lane.

The LTA system recognizes
white (yellow) lane lines or a
course

*

using the front cam-

era. Additionally, it detects
preceding vehicles using
the front camera and radar.

*

: Boundary between asphalt and

the side of the road, such as
grass, soil, or a curb

WARNING

■

Before using LTA system

●

Do not rely solely upon the LTA

system. The LTA system does

not automatically drive the vehi-

cle or reduce the amount of

attention that must be paid to

the area in front of the vehicle.

The driver must always assume

full responsibility for driving

safely by paying careful atten-

tion to the surrounding condi-

tions and operating the steering

wheel to correct the path of the

vehicle. Also, the driver must

take adequate breaks when

fatigued, such as from driving

for a long period of time.

●

Failure to perform appropriate

driving operations and pay care-

ful attention may lead to an

accident, resulting in death or

serious injury.

●

When not using the LTA system,

use the LTA switch to turn the

system off.

■

Situations unsuitable for LTA

system

In the following situations, use the

LTA switch to turn the system off.

Failure to do so may lead to an

accident, resulting in death or

serious injury.

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4-5. Using the driving support systems

WARNING

●

Vehicle is driven on a road sur-

face which is slippery due to

rainy weather, fallen snow,

freezing, etc.

●

Vehicle is driven on a snow-cov-

ered road.

●

White (yellow) lines are difficult

to see due to rain, snow, fog,

dust, etc.

●

Vehicle is driven in a temporary

lane or restricted lane due to

construction work.

●

Vehicle is driven in a construc-

tion zone.

●

A spare tire, tire chains, etc. are

equipped.

●

When the tires have been

excessively worn, or when the

tire inflation pressure is low.

●

When tires of a size other than

specified are installed.

●

Vehicle is driven in traffic lanes

other than that highways and

freeways.

●

During emergency towing.

■

Preventing LTA system mal-

functions and operations per-

formed by mistake

●

Do not modify the headlights or

place stickers, etc. on the sur-

face of the lights.

●

Do not modify the suspension

etc. If the suspension etc. needs

to be replaced, contact your

Toyota dealer.

●

Do not install or place anything

on the hood or grille. Also, do

not install a grille guard (bull

bars, kangaroo bar, etc.).

●

If your windshield needs

repairs, contact your Toyota

dealer.

■

Conditions in which functions

may not operate properly

In the following situations, the

functions may not operate prop-

erly and the vehicle may depart

from its lane. Drive safely by

always paying careful attention to

your surroundings and operate

the steering wheel to correct the

path of the vehicle without relying

solely on the functions.

●

When the follow-up cruising dis-

play is displayed (



P.201) and

the preceding vehicle changes

lanes. (Your vehicle may follow

the preceding vehicle and also

change lanes.)

●

When the follow-up cruising dis-

play is displayed (



P.201) and

the preceding vehicle is sway-

ing. (Your vehicle may sway

accordingly and depart from the

lane.)

●

When the follow-up cruising dis-

play is displayed (



P.201) and

the preceding vehicle departs

from its lane. (Your vehicle may

follow the preceding vehicle and

depart from the lane.)

●

When the follow-up cruising dis-

play is displayed (



P.201) and

the preceding vehicle is being

driven extremely close to the

left/right lane line. (Your vehicle

may follow the preceding vehi-

cle and depart from the lane.)

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WARNING

●

Vehicle is being driven around a

sharp curve.

●

Objects or patterns that could

be mistaken for white (yellow)

lines are present on the side of

the road (guardrails, reflective

poles, etc.).

●

Vehicle is driven where the road

diverges, merges, etc.

●

Repair marks of asphalt, white

(yellow) lines, etc. are present

due to road repair.

●

There are shadows on the road

that run parallel with, or cover,

the white (yellow) lines.

●

The vehicle is driven in an area

without white (yellow) lines,

such as in front of a tollgate or

checkpoint, or at an intersec-

tion, etc.

●

The white (yellow) lines are

cracked, “Botts’ dots”, “Raised

pavement marker” or stones are

present.

●

The white (yellow) lines cannot

be seen or are difficult to see

due to sand, etc.

●

The vehicle is driven on a road

surface that is wet due to rain,

puddles, etc.

●

The traffic lines are yellow

(which may be more difficult to

recognize than lines that are

white).

●

The white (yellow) lines cross

over a curb, etc.

●

The vehicle is driven on a bright

surface, such as concrete.

●

If the edge of the road is not

clear or straight.

●

The vehicle is driven on a sur-

face that is bright due to

reflected light, etc.

●

The vehicle is driven in an area

where the brightness changes

suddenly, such as at the

entrances and exits of tunnels,

etc.

●

Light from the headlights of an

oncoming vehicle, the sun, etc.

enters the camera.

●

The vehicle is driven on a slope.

●

The vehicle is driven on a road

which tilts left or right, or a wind-

ing road.