TOYOTA COROLLA 2020 Owners Manual (in English)
Manufacturer: TOYOTA, Model Year: 2020, Model line: COROLLA, Model: TOYOTA COROLLA 2020Pages: 588, PDF Size: 13.49 MB
Page 181 of 588

1814-5. Using the driving support systems
COROLLA_U
4
Driving
WARNING
■To avoid malfunction of the 
radar sensor
Observe the following precau-
tions.
Otherwise, the radar sensor may 
not operate properly, possibly 
leading to an accident resulting in 
death or serious injury.
●Keep the radar sensor and the 
grille cover clean at all times.
1.8 L 4-cylinder (2ZR-FAE) 
engine
Radar sensor
Grille cover
If the front of the radar sensor or 
the front or back of the grille cover 
is dirty or covered with water 
droplets, snow, etc., clean it.
Clean the radar s ensor and grille 
cover with a soft cloth to avoid 
damaging them.
2.0 L 4-cylinder (M20A-FKS) 
engine
Radar sensor
Grille cover
If the front of the radar sensor or 
the front or back of the grille cover 
is dirty or covered with water 
droplets, snow, etc., clean it.
Clean the radar se nsor and grille 
cover with a soft cloth to avoid 
damaging them.
●Do not attach accessories, 
stickers (including transparent 
stickers) or other items to the 
radar sensor, grille  cover or sur-
rounding area.
●Do not subject the radar sensor 
or its surrounding area to a 
strong impact.
If the radar sensor, front grille, 
or front bumper has been sub-
jected to a strong impact, have 
the vehicle inspected by your 
Toyota dealer.
●Do not disassemble the radar 
sensor.
●Do not modify or paint the radar 
sensor or grille cover.
●If the radar sensor, front grille, 
or front bumper needs to be 
removed and installed, or 
replaced, contact your Toyota 
dealer. 
Page 182 of 588

1824-5. Using the driving support systems
COROLLA_U
WARNING
■To avoid malfunction of the 
front camera
Observe the following precau-
tions.
Otherwise, the fr ont 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 o ily 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 wipe rs 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 dirt y, 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 fr ont 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. 
Page 183 of 588

1834-5. Using the driving support systems
COROLLA_U
4
Driving
WARNING
●Do not allow liqui ds 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. 
Page 184 of 588

1844-5. Using the driving support systems
COROLLA_U
■Certification
Except for vehicles sold in Canada
For vehicles sold in Canada 
Page 185 of 588

1854-5. Using the driving support systems
COROLLA_U
4
Driving
■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 cond itions are detected, the message will disappear 
and the system will be come operational.
If the message does not disappear, contact your Toyota dealer.
SituationActions
When the area around a sensor is 
covered with dirt, moisture (fogged 
up, covered with condensation, ice, 
etc.), or other foreign matterTo 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). 
Page 186 of 588

1864-5. Using the driving support systems
COROLLA_U
●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.
SituationActions 
Page 187 of 588

1874-5. Using the driving support systems
COROLLA_U
4
Driving
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 
Page 188 of 588

1884-5. Using the driving support systems
COROLLA_U
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. 1 9 1
• Conditions under which the sys- tem may not operate properly: 
P. 1 9 2
●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-co llision 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 
Page 189 of 588

1894-5. Using the driving support systems
COROLLA_U
4
Driving
■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 
Page 190 of 588

1904-5. Using the driving support systems
COROLLA_U
1Early 2
Middle
This is the default setting.
3Late
■Operational conditions
The pre-collision syst em is enabled and the syste m 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 objectsVehicle speedRelative speed between 
your vehicle and object
VehiclesApprox. 7 to 110 mph  (10 to 180 km/h)Approx. 7 to 110 mph (10 to 180 km/h)
Bicyclists and pedestri- ansApprox. 7 to 50 mph (10 to 80 km/h)Approx. 7 to 50 mph (10 to 80 km/h)
Detectable objectsVehicle speedRelative speed between your vehicle and object
VehiclesApprox. 20 to 110 mph  (30 to 180 km/h)Approx. 20 to 110 mph (30 to 180 km/h)
Bicyclists and pedestri- ansApprox. 20 to 50 mph (30 to 80 km/h)Approx. 20 to 50 mph (30 to 80 km/h)