2022 TOYOTA COROLLA HATCHBACK sensor

203
4
4-3. Operating the lights and wipers
Driving
beams in the following situations:
• When vehicles ahead suddenly appear from a curve
• When the vehicle is cut in front of by
another vehicle • When vehicles ahead are hidden from
sight due to repeated curves, road
dividers or roadside trees • When vehicles ahead appear from the
faraway lane on wide road
• When vehicles ahead have no lights
●The high beams may be changed to
the shaded high beams if a vehicle ahead that is using fog lights without
its headlights turned on is detected.
●House lights, streetlights, traffic sig-
nals, and illuminated billboards or
signs and other reflective objects may cause the high beams to change to
the shaded high beams, cause the
high beams not to change to the shaded high beams, or change the
area that is not illuminated.
●The following factors may affect the
amount of time taken to turn the high
beam on or off, or the speed by which the areas not illuminated change:
• The brightness of headlights, fog
lights, and tail lights of vehicles ahead • The movement and direction of vehi-
cles ahead
• When a vehicle ahead only has oper- ational lights on one side
• When a vehicle ahead is a
two-wheeled vehicle • The condition of the road (gradient,
curve, condition of the road surface
etc.) • The number of passengers and
amount of luggage
●The light distribution control of the
headlights may change unexpectedly.
●Bicycles or similar objects may not be detected.
●In the following sit uations the system 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 daz-
zle pedestrians or vehicles ahead. In
such a case, it is necessary to manu-
ally switch between the high and low beams.
• When driving in inclement weather
(heavy rain, snow, fog, sandstorms, 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 camera
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 vehi-
cles ahead are turned off, dirty, chang-
ing 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 inter-
mittently changing brightness and
darkness • When frequently and repeatedly driv-
ing ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads,
gravel roads, etc.)
• When frequently and repeatedly tak- ing curves or driving on a winding
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 con-
tainer on a truck
• When the vehicle’s headlights are damaged or dirty, or are not aimed
properly
• When the vehicle is listing or tilting
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 drivers

207
4
4-3. Operating the lights and wipers
Driving
pulled and held, the headlight cleaners
will operate once. After this, the head-
light cleaners will operate every 5th
time the lever is pulled.
Rain-sensing wi ndshield wipers
1 Rain-sensing windshield
wiper operation
2 Low speed windshield
wiper operation
3 High speed windshield
wiper operation
4 Temporary operation
When “AUTO” is selected, the wipers
will operate automat ically when the
sensor detects falling rain. The system
automatically adjust s wiper timing in
accordance with rain volume and vehi-
cle speed.
When “AUTO” is selected, the sen-
sor sensitivity can be adjusted as
follows by turning the switch ring.
5 Increases the rain-sensing wind-
shield wiper sensitivity
6 Decreases the rain-sensing
windshield wiper sensitivity
7 Washer/wiper dual opera-
tion
Pulling the lever operates the wipers
and washer.
Wipers will automatical ly operate a cou-
ple of times after the washer squirts.
Vehicles with headlight cleaners: When
the headlights are on and the lever is
pulled and held, the headlight cleaners
will operate once. After this, the head-
light cleaners will operate every 5th
time the lever is pulled.
■The windshield wiper and washer can be operated when
The engine switch is in ON.

2084-3. Operating the lights and wipers
■Effects of vehicle speed on wiper
operation (vehicles with rain-sens- ing windshield wipers)
Vehicle speed affects the Intermittent
wiper interval.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●The raindrop sensor judges the amount of raindrops.
An optical sensor is adopted. It may
not operate properly when sunlight from the rising or setting of the sun
intermittently strikes the windshield, or
if bugs etc. are present on the wind- shield.
●If the wiper is turned to AUTO mode while the engine switch is in ON, the
wipers will operate once to show that
AUTO mode is activated.
●If the temperature of the raindrop sen-
sor is 85°C (185°F) or higher, or -15°C (5°F) or lower, automatic operation
may not occur. In this case, operate
the wipers in any mode other than AUTO mode.
■If no windshield washer fluid
sprays
Check that the washer nozzles are not blocked if there is washer fluid in the
windshield washer fluid reservoir.
■When stopping the engine in an
emergency while driving
If the windshield wipers are operating when the engine is stopped, the wind-
shield wipers will operate in high speed
operation. After the vehicle is stopped, operation will return to normal when the
engine switch is turned to ON, or opera-
tion will stop when the driver’s door is opened.
WA R N I N G
■Caution regarding the use of
windshield wipers in AUTO mode
(vehicles with rain-sensing wind- shield wipers)
The windshield wipers may operate
unexpectedly if the sensor is touched or the windshield is subject to vibra-
tion in AUTO mode. Take care that
your fingers or anything else do not
become caught in the windshield wip- ers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer
fluid until the windshield becomes warm. The fluid may freeze on the
windshield and cause low visibility.
This may lead to an accident, result- ing in death or serious injury.
NOTICE
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump
may be caused if the lever is pulled
toward you and held continually.
■When a nozzle becomes blocked
In this case, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

213
4
4-5. Using the driving support systems
Driving
4-5.Using the driving support systems
*: If equipped
■PCS (Pre-Collision System)
 P. 2 2 4
■LTA (Lane Tracing Assist)*
P. 2 3 1
*: If equipped
■LDA (Lane Departure Alert
with steering control)*
 P. 2 4 1
*: If equipped
■AHS (Adaptive High-beam
System)*
 P. 2 0 1
*: If equipped
■AHB (Automatic High Beam)*
P. 1 9 9
*: If equipped
■RSA (Road Sign Assist)*
P. 2 7 6
*: If equipped
■Dynamic radar cruise control
with full-speed range*
 P. 2 4 9
*: If equipped
■Dynamic radar cruise control*
P.260
*: If equipped
Two types of sensors, located
behind the front grille and wind-
shield, detect in formation neces-
sary to operate the drive assist
systems.
Radar sensor
Front camera
Toyota Safety Sense*
The Toyota Safety Sense con-
sists of the following drive
assist systems and contrib-
utes to a safe and comfortable
driving experience:
Driving assist system
WA R N I N G
■Toyota Safety Sense
The Toyota Safety Sense 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 conditions.
As there is a limit to the degree of rec-
ognition accuracy and control perfor- mance 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

2144-5. Using the driving support systems
WA R N I N G
■To avoid malfunction of the radar
sensor
Observe the following precautions. Otherwise, the radar sensor may not
operate properly, possibly leading to
an accident resulting in death or seri- ous injury.
●Keep the radar sensor and the
radar sensor cover clean at all times.
Radar sensor
Radar sensor cover
If the front of the radar sensor or the
front or back of the radar sensor
cover is dirty or covered with water
droplets, snow, etc., clean it.
Clean the radar sensor and radar
sensor cover with a soft cloth to avoid
damaging them.
●Do not attach accessories, stickers
(including transparent stickers) or
other items to the radar sensor, radar sensor cover or surrounding
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 subjected to
a strong impact, have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
●Do not disassemble the radar sen- sor.
●Do not modify or paint the radar sensor or radar sensor cover.
●In the following cases, the radar sensor must be recalibrated. Con-
tact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer for details.
• When the radar sensor or front
grille are removed and installed, or replaced
• When the front bumper is replaced
■To avoid malfunction of the front
camera
Observe the following precautions.
Otherwise, the front camera may not
operate properly, possibly leading to an accident resulting in death or seri-
ous injury.
●Keep the windshield clean at all
times.
• If the windshield is dirty or covered 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 neces-
sary 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 windshield
where the front camera is installed is dirty, contact any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

223
4
4-5. Using the driving support systems
Driving
●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 mes- sage 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.
• When the temperature around t he radar sensor is outside of the operational 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
SituationActions
When the area around a sensor is cov-
ered with dirt, moisture (fogged up, cov-
ered with condensation, ice, etc.), or
other foreign matter
To clean the part of the windshield in
front of the front camera, use the wind-
shield wipers or the windshield defogger
of the air conditioning system ( P.424,
429).
When the temperature around the front
camera is outside of the operational
range, such as when the vehicle 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 conditi oning system 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 conditioning
system to increase the temperature
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 cam-
era.
Close the hood, remove the sticker, etc.
to clear the obstruction.

2244-5. Using the driving support systems
*: If equipped
The system can detect the follow-
ing:
 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 mess age 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 collision is
extremely high, the brakes are
automatically applied to help avoid
the collision or reduce the impact of
the collision.
PCS (Pre-Collision Sys-
tem)*
The pre-collision system uses
a radar sensor and front cam-
era to detect objects ( P.227)
in front of the vehicle. When
the system determines that the
possibility of a frontal collision
with an object is high, a warn-
ing 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 sys-
tem determines that the possi-
bility of a frontal collision with
an object is extremely high, the
brakes are automatically
applied to help avoid the colli-
sion or help reduce the impact
of the collision.
The pre-collision system can
be disabled/enabled and the
warning timing can be
changed. ( P.226)
Detectable objects
System functions

2264-5. Using the driving support systems
■Enabling/disabling the pre-col-
lision system
The pre-collisio n system can be
enabled/disabled on ( P.577)
of the multi-information display.
The system is auto matically 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 di splayed on the
multi-information display.
■Changing the pre-collision
warning timing
The pre-collision warning timing
can be changed on ( P.577) of
the multi-information display.
The warning timing setting is retained
when the engine switch is turned off.
However, if the pr e-collision system is
disabled and re-enabled, the operation
timing will return to the default setting
(middle).
1 Early
2 Middle
WA R N I N G
●When inspecting the vehicle using
a drum tester such as a chassis
dynamometer or speedometer 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 accident 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 sensor or front camera is temporarily installed
to the vehicle
Changing settings of the
pre-collision system