sensor TOYOTA COROLLA CROSS HYBRID 2023 Service Manual

2754-5. Using the driving support systems
4
Driving
The PKSB (Parking Support
Brake) system can be
enabled/disabled on of the
multi-information display.
(P.463)
When the PKSB (Parking Sup-
port Brake) function is off, the
driving assist information indica-
tor ( P.82) will illuminate.
When turned OFF (disabled), the
PKSB (Parking Supp ort Brake) will
be disabled and will not be enabled
until the setting is changed to ON
again in multi-information display.
(The function will no t be reenabled
by operating the power switch.)
If the hybrid system output restric-
tion control or brake control oper-
ates, a buzzer will sound and a
WARNING
■When to disable the PKSB
(Parking Support Brake) sys-
tem
In the following situations, disable
the PKSB (Parking Support
Brake) as the system may oper-
ate even though there is no possi-
bility of a collision.
●When inspecting the vehicle
using a chassis roller, chassis
dynamo or free roller
●When loading the vehicle onto a
boat, truck or other transport
vessel
●If the suspension has been
modified or tires of a size other
than specified are installed
●If the front of the vehicle is
raised or lowered due to the
carried load
●When equipment that may
obstruct a sensor is installed,
such as a towing eyelet, bumper
protector (an additional trim
strip, etc.), bicycle carrier, or
snow plow
●When using automatic car
washing devices
●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 a tire chains or an emer-
gency tire puncture repair kit is
used
●When your vehicle is towing a
trailer or during emergency tow-
ing
■Precautions for the suspen-
sion
Do not modify the suspension of
the vehicle. If the height or tilt of
the vehicle is c hanged, the sen-
sors may not be able to detect
detectable objects and the system
may not operate correctly, possi-
bly leading to an accident.
Enabling/Disabling the
PKSB (Parking Support
Brake)
Displays and buzzers for
hybrid system output
restriction control and
brake control

2794-5. Using the driving support systems
4
Driving
If the sensors detect a static object, such as a wall, in the travelling
direction of the vehicle and the system determines that a collision
may occur due to the vehicle suddenly moving forward due to an
accidental accelerator pedal operation, the vehicle moving the unin-
tended direction due to the wrong shift position, or while park ing or
traveling at low speeds, the system will operate to lessen the impact
with the detected static object and reduce the resulting damage .
The system operates in the follow ing situations when a static object
is detected in the traveling direction of the vehicle.
■When traveling at a low speed and the brake pedal is not
depressed, or is depressed late
■When the accelerator pedal is depressed excessively
Static Objects Front and Rear of the vehicle

2804-5. Using the driving support systems
■When the vehicle moves in the unintended direction due to
the wrong shift lever position
■Types of sensors
 P.268
■The system will operate when
The function will operate when the
driving assist information indicator is
not illuminated or flashing ( P.82,
408) and all of the following condi-
tions are met:
●Hybrid system output restriction
control
• PKSB (Parking Support Brake) system is enabled.
• The vehicle speed is approxi-
mately 9 mph (15 km/h) or less. • There is a static object in the trav-
eling direction of the vehicle and
approximately 6 to 13 ft. (2 to 4 m)
away.
• The PKSB (Parking Support Brake) determines that a stron-
ger-than-normal brake operation
is necessary to avoid a collision.
●Brake control
• Hybrid system output restriction control is operating.
• The PKSB (Parking Support
Brake) determines that an imme-
diate brake operation is necessary
to avoid a collision.
■The system will stop operating
when
The function will stop operating if
any of the following conditions are
met:
●Hybrid system output restriction
control
• PKSB (Parking Support Brake)
system is disabled.
• The system determines that the collision has become avoidable
with normal brake operation.
• The static object is no longer approximately 6 to 13 ft. (2 to 4 m)
away from the vehicle or in the
traveling direction of the vehicle.
●Brake control
WARNING
■To ensure the system can
operate properly
 P. 2 6 9
■If the system operates unnec-
essarily, such as at a railroad
crossing
 P. 2 7 8
■Notes when washing the vehi-
cle
 P. 2 6 9

2814-5. Using the driving support systems
4
Driving
• PKSB (Parking Support Brake) system is disabled.
• Approximately 2 seconds have
elapsed since the vehicle was
stopped by brake control.
• The brake pedal is depressed
after the vehicle is stopped by
brake control.
• The static object is no longer
approximately 6 to 13 ft. (2 to 4 m)
away from the vehicle or in the
traveling directi on of the vehicle.
■Detection range
The detection range of the system
differs from the detection range of the intuitive parking assist. (
P.272)
Therefore, even if the intuitive park-
ing assist detects an object and pro-
vides a warning, the PKSB (Parking
Support Brake) may not start oper-
ating.
■Situations in which the system
may not operate properly
 P.270
■Situations in which the system
may operate even if there is no
possibility of a collision
 P.271
If a rear radar sensor detects a vehicle approaching from the right or
left at the rear of the vehicle and the system determines that the pos-
sibility of a collision is high, this function will perform bra ke control to
reduce the likelihood of an impact with the approaching vehicle .
This function will operate in sit uations such as the following if a vehi-
cle is detected in the traveling direction of the vehicle.
■When reversing, a vehicle is approaching and the brake pedal
is not depressed, or is depressed late
■Types of sensors
 P. 2 5 3
Moving Vehicles Rear of the Vehicle

2854-5. Using the driving support systems
4
Driving
■Enhanced VSC (Enhanced
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintai n directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.
■TRAC (Traction Control)
Helps to maintain drive power
and prevent the drive wheels
from spinning when starting the
vehicle or accelerating on slip-
pery roads
■Active Cornering Assist
(ACA)
Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning
■Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■EPS (Electric Power Steer-
ing)
Employs an electric motor to
reduce the amount of effort
needed to turn the steering
wheel.
■E-Four (Electronic
On-Demand AWD system)
(AWD models)
Automatically controls the drive
system such as to front-wheel
drive or AWD (all wheel drive) according to various running
conditions including normal driv-
ing, during cornering, on a
uphill, when starting off, during
acceleration, on a slippery roads
due to snow or rain, thus con-
tributing to stable operability and
driving stability.
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■When the TRAC/VSC/ABS sys-
tems are operating
The slip indicator light will flash
while the TRAC/VSC/ABS systems
are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt
or snow, the TRAC system may
reduce power from the hybrid sys-
tem to the wheels . Pressing to
turn the system off may make it eas-
ier for you to rock the vehicle in
order to free it.
To turn the TRAC system off, quickly
press and release .

2874-5. Using the driving support systems
4
Driving
■Active Cornering Assist opera-
tion sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and
vibrations may b e generated from
the brake system, but this is not a
malfunction.
■EPS operation sound
When the steering wheel is oper-
ated, a motor sound (whirring
sound) may be heard. This does not
indicate a malfunction.
■Automatic reactivation of TRAC
and VSC systems
After turning the TRAC and VSC
systems off, the systems will be
automatically re-enabled in the fol-
lowing situations:
●When the power switch is turned
off
●If only the TRAC system is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned off, automatic
re-enabling will not occur when
vehicle speed increases.
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is at tempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the hybrid system off. The EPS system should
return to normal within 10 minutes.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion.
However, the system does not oper-
ate when the components are dam-
aged.
■Secondary Collision Brake
automatic cancellation
The system is automatically can-
celed in any of th e following situa-
tions.
●The vehicle speed drops below
approximately 0 mph (0 km/h)
●A certain amount of time elapses
during operation
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the veh icle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains

4077-2. Steps to take in an emergency
7
When trouble arises
■LDA indicator (warning buzzer)
■Intuitive parking assist OFF indicator (warning buzzer)
■PCS warning light (warning buzzer)
■Dynamic radar cruise control indicator (warning buzzer)
■Cruise control indicator (warning buzzer)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LDA (Lane Departure Alert).
Follow the instructions di splayed on the multi-infor-
mation display. ( P.412)
Warning lightDetails/Actions
(if equipped)
Indicates a malfunction in the intuitive parking assist func-
tion
 Have the vehicle inspected by your Toyota dealer
immediately.
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.268)
Warning lightDetails/Actions
(Orange)
Indicates a malfuncti on in the PCS (Pre-Collision System).
Follow the instructions display ed on the multi-information
display.
If the PCS (Pre-Collision Syst em) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the dynamic radar cruise control.
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.235)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the cruise control.
 Follow the instructions di splayed on the multi-infor-
mation display. ( P.235)

4097-2. Steps to take in an emergency
7
When trouble arises
■Brake hold operated indicator (warning buzzer)
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●If luggage is placed on the front
passenger seat, the front passen-
ger detection sensor may cause
the warning light to flash and the
warning buzzer to sound even if a
passenger is not sitting in the
seat.
●If a cushion is placed on the seat,
the sensor may n ot detect a pas-
senger, and the warning light may
not operate properly.
■SRS warning light
This warning light indicates prob-
lems with the following:
●Airbag sensor assembly
●Front impact sensors
●Side impact sensors (front door)
●Side impact sensors (front)
●Front passenger occupant classifi-
cation sensors
●Front passenger’s seat belt buckle
switch
●“AIR BAG ON” indicator light
●“AIR BAG OFF” indicator light
●SRS airbags
●SRS system related wiring har-
nesses and power sources
■Electric power steering system
warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage
temporarily drops, the electric power
steering system warning light may
come on and the warning buzzer
may sound.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: P. 4 1 7
If none of the tires are punctured:
Turn the power switch off then turn it
to ON. Check if th e tire pressure
warning light com es on or blinks.
If the tire pressure warning light
blinks for approximately 1 minute
then stays on
There may be a malfunction in the
tire pressure warning system. Have
the vehicle inspected by your Toyota
dealer immediately.
If the tire pressur e warning light
comes on
1 After the temperature of the tires
has lowered sufficiently, check
the inflation pressure of each tire
and adjust them to the specified
level.
2 If the warning light does not turn
off even after several minutes
have elapsed, check that the
inflation pressure of each tire is
at the specified level and perform
initialization. ( P.364)
■The tire pressure warning light
may come on due to natural
causes
The tire pressure warning light may
come on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
Warning lightDetails/Actions
(Flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspected by your Toyota dealer
immediately.

4147-2. Steps to take in an emergency
equipped)
● BSM (Blind Spot Monitor) (if
equipped)
● RCTA (Rear Cross Traffic
Alert) (if equipped)
● Safe Exit Assist (if equipped)
●Intuitive parking assist (if
equipped)
● PKSB (Parking Support
Brake) (if equipped)
Follow the followi ng correction
methods.
• Check the voltage of the 12-volt battery
• Check the sensors that the Toyota Safety System 3.0 uses for foreign
matter covering them. Remove
them if any. ( P.207)
• Remove any dirt or foreign matter from the rear side radar sensors
• Close the back door
Indicates the sensors may not be
operating properly. ( P.207)
When problems are solved and the
sensors are operatio nal, this indica-
tion may disappear by itself.
■If “System Stopped Front Cam-
era Low Visibility See Owner’s
Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●LDA (Lane Departure Alert)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist) (if
equipped)
Follow the followi ng correction
methods.
• Using the windshield wipers, remove the dirt o r foreign matter
from the windshield. • Using the air conditioning system,
defog the windshield.
• Close the hood, remove any stick- ers,etc. to clear the obstruction
infront of the front camera.
■If “System Stopped Front Cam-
era Out of Temperature Range
Wait until Normal Temperature”
is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●LDA (Lane Departure Alert)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist) (if
equipped)
Follow the following correction
methods.
• If the front camer a is hot, such as
after the vehicle is 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 conditioning system to
increase the temperature around
the front camera
■If “System Stopped Front Radar
Sensor Blocked Clean Radar
Sensor” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●LDA (Lane Departure Alert)

4157-2. Steps to take in an emergency
7
When trouble arises
●AHB (Automatic High Beam)
●Dynamic radar cruise control
Follow the followi ng correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or
radar sensor cover and clean
them if necessary ( P.207)
• This message may be displayed when driving in an open area with
few nearby vehicles or structures,
such as a desert, grasslands, sub-
urbs, etc.
The message may be cleared by
driving the vehicle in an area with
structures, vehicles, etc., nearby.
■If “System Stopped Front Radar
Sensor Out of Temperature
Range Wait until Normal Tem-
perature” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●LDA (Lane Departure Alert)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
The temperature of the radar senso-
ris outside of the operating range.
Wait for the temperature to become
appropriate.
■If “System Stopped Front Radar
In Self Calibration See Owner’s
Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision system)
●LTA (Lane Tracing Assist)
●LDA (Lane Departure Alert)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
Follow the followi ng correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or radar sensor cover and clean
them if necessary (
P.207)
• The radar sensor may be mis- aligned and will be adjusted auto-
matically while d riving. Continue
driving for a while.
■If “Cruise Control Unavailable
See Owner's Manual” is dis-
played
Indicates one of the following sys-
tems is disabled.
●Dynamic radar cruise control
●Cruise control
A message is displayed when the
driving assist s witch is pushed
repeatedly.
Press the driving assist switch
quickly and firmly.
■If “Maintenance Required
Soon” is displayed
Indicates that all maintenance
according to the driven distance on
the maintenance schedule
* should
be performed soon.
Comes on approximately 4500
miles (7200 km) after the message
has been reset. If necessary, per-
form maintenance. Please reset the
message after the maintenance is
performed. ( P.444)
*: Refer to the separate “Scheduled
Maintenance” or “Owner’s Man-
ual Supplement” for the mainte-
nance interval applicable to your
vehicle.
■If “” is displayed
Indicates that all maintenance is
required to correspond to the driven
distance on the maintenance sched-
ule
*.
Comes on approximately 5000
miles (8000 km) after the message
has been reset. (The indicator will
not work properly unless the mes-
sage has been rese t.) Perform the
necessary maintenance. Please