2020 TOYOTA COROLLA sensor

1744-3. Operating the lights and wipers
COROLLA_Ufrom around a curve
• When the vehicle is cut in front of by another vehicle
• When vehicles ahead cannot be detected due to repeated curves,
road dividers or roadside trees
• When vehicles ahead appear in a faraway lane on a wide road
• When the lights of vehicles ahead
are not on
●The high beams may be turned off
if a vehicle ahead that is using fog
lights without its headlights turned
on is detected.
●House lights, streetlights, traffic
signals, and illumi nated billboards
or signs and other reflective
objects may cause the high
beams to change to the low
beams, or the low beams to
remain on.
●The following factors may affect
the amount of time taken for the
high beams to turn on or off:
• The brightness of the headlights, fog lights, and tail lights of vehi-
cles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has
operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradi- ent, curve, condition of the road
surface, etc.)
• The number of passengers and amount of luggage in the vehicle
●The high beams may turn on or off
unexpectedly.
●Bicycles or similar vehicles may
not be detected.
●In the following situations the sys-
tem may not be able to correctly
detect the surrounding brightness
level. This may cause the low
beams to remain on or the high
beams to flash or dazzle pedestri-
ans or vehicles ahead. In such a
case, it is necess ary to manually
switch between the high and low
beams. • When driving in inclement weather
(heavy rain, snow, fog, sand-
storms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or
damaged
• When the camera sensor is deformed or dirty
• When the temperature of the cam- era sensor is extremely high
• When the surrounding brightness
level is equal to that of headlights,
tail lights or fog lights
• When headlights or tail lights of
vehicles ahead are turned off,
dirty, changing color, or not aimed
properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding
vehicle
• When driving through an area of intermittently changing brightness
and darkness
• When frequently and repeatedly driving ascending/descending
roads, or roads with rough, bumpy
or uneven surfaces (such as
stone-paved roads, gravel roads,
etc.)
• When frequently and repeatedly taking curves or driving on a wind-
ing road
• When there is a highly reflective object ahead of the vehicle, such
as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as
a container on a truck
• When the vehicle’s headlights are damaged or dirty, or are not aimed
properly
• When the vehicle is listing or titling due to a flat tire, a trailer being
towed, etc.
• When the headlights are changed between the high beams and low
beams repeatedly in an abnormal
manner
• When the driver believes that the high beams may be flashing or
dazzling pedestrians or other driv-
ers

1754-3. Operating the lights and wipers
COROLLA_U
4
Driving
■Temporarily lowering sensor
sensitivity
The sensitivity of the sensor can be
temporarily lowered.
1 Turn the engine switch off while
the following conditions are met.
●The headlight swit ch is in or
.
●The headlight swit ch lever is in
high beam position.
●Automatic High Beam switch is
on.
2 Turn the engine switch to ON.
3 Within 60 seconds after step 2,
repeat pulling the headlight
switch lever to the original posi-
tion then pushing it to the high
beam position quickly 10 times,
then leave the lever in high beam
position.
4 If the sensitivity is changed, the
Automatic High Beam indicator
is turn on and off 3 times.
Automatic High Beam (headlights)
may turn on even when the vehicle
is stopped.
■Switching to the low beams
Pull the lever to its original posi-
tion.
The Automatic High Beam indicator
will turn off.
Push the lever away from you to
activate the Automatic High Beam
system again.
■Switching to the high
beams
Press the Automatic High Beam
switch.
The Automatic High Beam indicator
will turn off and the high beam indi-
cator will turn on.
Press the switch to activate the
Automatic High Beam system
again.
Turning the high beams
on/off manually

1804-5. Using the driving support systems
COROLLA_U
4-5.Using the driving support systems
■PCS (Pre-Collision System)
 P.187
■LTA (Lane Tracing Assist)*
P.195
*: If equipped
■LDA (Lane Departure Alert
with steering control)
*
P.205
*: If equipped
■Automatic High Beam
 P.173
■RSA (Road Sign Assist)*
P.233
*: If equipped
■Dynamic radar cruise con-
trol with full-speed range
*
P.213
*: If equipped
■Dynamic radar cruise con-
trol
*
P.223
*: If equipped
Two types of sensors, located
behind the front grille and wind-
shield, detect information neces-
sary to operate the drive assist
systems.
Radar sensor
Front camera
Toyota Safety Sense
2.0
The Toyota Safety Sense 2.0
consists of the following
drive assist systems and
contributes to a safe and
comfortable driving experi-
ence:
Driving assist system
WARNING
■Toyota Safety Sense 2.0
The Toyota Safety Sense 2.0 is
designed to operate under the
assumption that the driver will
drive safely, and is designed to
help reduce the impact to the
occupants and the vehicle in the
case of a collision or assist the
driver in normal driving condi-
tions.
As there is a limit to the degree of
recognition accuracy and control
performance that this system can
provide, do not overly rely on this
system. The driver is always
responsible for paying attention to
the vehicle’s surroundings and
driving safely.
Sensors

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.

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).

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

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

1924-5. Using the driving support systems
COROLLA_U• 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