sensor TOYOTA COROLLA 2021 (in English) Owner's Guide

2544-5. Using the driving support systems
COROLLA_Unormally when driving in extremely
hot or cold environments.
■When “Blind Spot Monitor Mal-
function Visit Your Dealer” is
shown on the multi-information
display
There may be a sensor malfunction of misaligned. Have the vehicle
inspected by your Toyota dealer.■Customization
Some functions can be customized.
(  P.581)
■Certification
Except for vehicles sold in Canada
For vehicles sold in Canada

2554-5. Using the driving support systems
4
Driving
COROLLA_U
Use the meter control switches
to turn on/off the function.
1Press or to select .
2 Press or to select
and then press .
WA R N I N G
■Handling the rear side radar
sensor
Blind Spot Monitor sensors are
installed behind t he left and right
sides of the rear bumper respec-
tively. Observe the following to
ensure the Blind Spot Monitor can
operate correctly.
●Keep the sensors and the sur-
rounding areas on the rear
bumper clean at all times.
If a sensor or its surrounding area
on the rear bumper is dirty or cov-
ered with snow, the Blind Spot
Monitor may not operate and a
warning message ( P.253) will
be displayed. In this situation,
clear off the dirt or snow and drive
the vehicle with the operation con-
ditions of the BSM function
(  P.257) satisfied for approxi-
mately 10 minutes. If the warning
message does not disappear,
have the vehicle inspected by
your Toyota dealer.
●Do not attach accessories,
stickers (including transparent
stickers), aluminum tape, etc. to
a sensor or its surrounding area
on the rear bumper.
●Do not subject a sensor or its
surrounding area on the rear
bumper to a strong impact.
If a sensor is moved even
slightly off position, the system
may malfunction and vehicles
may not be detected correctly.
In the following si tuations, have
your vehicle inspected by your
Toyota dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sen- sor is scratched or dented, or
part of them h as become dis-
connected.
●Do not disassemble the sensor.
●Do not modify the sensor or sur-
rounding area on the rear
bumper.
●If a sensor or the rear bumper
needs to be removed/installed
or replaced, contact your Toyota
dealer.
●Do not paint the rear bumper
any color other t han an official
Toyota color.
Turning the Blind Spot
Monitor on/off

2564-5. Using the driving support systems
COROLLA_U
■Vehicles that can be detected by the Blind Spot Monitor
The Blind Spot Monitor uses rear side radar sensors to detect the fol-
lowing vehicles traveling in adjacent lanes and advises the dri ver of
the presence of such vehicles v ia the indicators on the outside rear
view mirrors.
Vehicles that are traveling in areas that are not visible using the
outside rear view mirrors (the blind spots)
Vehicles that are approaching r apidly from behind in areas that
are not visible using the outside rear view mirrors (the blind spots)
■The Blind Spot Monitor detection areas
The areas that vehicles can be detected in are outlined below.
The range of each detection area is:
Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either s ide of
the vehicle
*1
Approximately 3.3 ft. (1 m) forward of the rear bumper
Approximately 9.8 ft. (3 m) from the rear bumper
Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear
bumper
*2
Blind Spot Monitor operation

2574-5. Using the driving support systems
4
Driving
COROLLA_U
*1: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side
of the vehicle cannot be detected.
*2: The greater the difference in speed between your vehicle and t he
detected vehicle is, the farthe r away the vehicle will be detec ted, causing
the outside r ear view mirror indicato r to illuminate or flash.
■The Blind Spot Monitor is oper-
ational when
The Blind Spot Monitor is opera-
tional when all of the following con-
ditions are met:
●The Blind Spot Monitor is on.
●The shift lever is in a position
other than R.
●The vehicle speed is greater than
approximately 10 mph (16 km/h).
■The Blind Spot Monitor will
detect a vehicle when
The Blind Spot Mon itor will detect a
vehicle present in the detection area
in the followin g situations:
●A vehicle in an adjacent lane over-
takes your vehicle.
●You overtake a vehicle in adjacent
lane slowly.
●Another vehicle enters the detec-
tion area when it changes lanes.
■Conditions under which the
Blind Spot Monitor will not
detect a vehicle
The Blind Spot Monitor is not
designed to detect the following
types of vehicles and/or objects:
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles traveling in the opposite
direction
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Following vehicles that are in the
same lane*
●Vehicles traveling 2 lanes away
from your vehicle*
●Vehicles which are being over-
taken rapidly by your vehicle*
*
: Depending on the conditions, detection of a v ehicle and/or
object may occur.
■Conditions under which the
Blind Spot Monitor may not
function correctly
●The Blind Spot Monitor may not
detect vehicles corr ectly in the fol-
lowing situations:
• When the sensor is misaligned
due to a strong impact to the sen-
sor or its surrounding area
• When mud, snow, ice, a sticker,
etc. is covering the sensor or sur-
rounding area on the rear bumper
• When driving on a road surface
that is wet with standing water
during bad weather, such as
heavy rain, snow, or fog
• When multiple vehicles are
approaching with only a small gap
between each vehicle
• When the distance between your
vehicle and a following vehicle is
short
• When there is a significant differ-
ence in speed between your vehi-
cle and the vehicle that enters the
detection area
• When the difference in speed between your vehicle and another
vehicle is changing
• When a vehicle enters a detection area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection
area
• When driving up and down con- secutive steep inclines, such as
hills, dips in the road, etc.
• When driving on r oads with sharp
bends, consecutive curves, or

2584-5. Using the driving support systems
COROLLA_Uuneven surfaces
• When vehicle lanes are wide, or when driving on the edge of a
lane, and the vehicle in an adja-
cent lane is far away from your
vehicle
• When an accessory (such as a bicycle carrier) is installed to the
rear of the vehicle
• When there is a significant differ- ence in height between your vehi-
cle and the vehicle that enters the
detection area
• Immediately after the Blind Spot Monitor is turned on
●Instances of the Blind Spot Moni-
tor unnecessarily d etecting a vehi-
cle and/or object may increase in
the following situations:
• When the sensor is misaligned
due to a strong impact to the sen-
sor or its surrounding area
• When the distanc e between your
vehicle and a guar drail, wall, etc.
that enters the detection area is
short
• When driving up and down con- secutive steep inclines, such as
hills, dips in the road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a
lane, and a vehicle traveling in a
lane other than the adjacent lanes
enters the detection area
• When driving on roads with sharp
bends, consecutive curves, or
uneven surfaces
• When the tires are slipping or
spinning
• When the distanc e between your
vehicle and a following vehicle is
short
• When an accessory (such as a bicycle carrier) is installed to the
rear of the vehicle
*: If equipped
Meter control switches
Turning the RCTA function on/off.
When the RCTA function is dis-
abled, the RCTA OFF indicator illu-
minates.
Outside rear view mirror indi-
cators
When a vehicle approaching from
the right or left a t the rear of the
vehicle is detected, both outside
rear view mirror indicators will flash.
Audio system display
RCTA (Rear Cross Traf-
fic Alert) function*
The RCTA function uses the
BSM rear side radar sensors
installed behind the rear
bumper. This function is
intended to assist the driver
in checking areas that are
not easily visible when
backing up.
System components

2594-5. Using the driving support systems
4
Driving
COROLLA_UIf a vehicle appr
oaching from the
right or left at the rear of the vehicle
is detected, the RCTA icon
(  P.260) for the det ected side will
be displayed on t he audio system
display. This illustration shows an
example of a vehicle approaching
from both sides of the vehicle.
RCTA buzzer
If a vehicle appr oaching from the
right or left at the rear of the vehicle
is detected, a b uzzer will sound.
The buzzer also sounds for approx-
imately 1 second immediately after
the RCTA function is turned on.
Use the meter control switches
to enable/disable the RCTA
function. ( P.101)
1 Press or to select .
2 Press or to select
“RCTA” and then press .
When the RCTA function is dis-
abled, the RCTA OFF indicator
( P.88) illuminates. (Each time the
engine switch is turned off then
changed to ON, the RCTA function
will be enabled a utomatically.)
■Outside rear vie w mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicator may be difficult
to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noises, such as if the
audio system volume is high.
■When “Rear Cross Traffic Alert
Unavailable” is shown on the
multi-information display
Water, snow, mud, etc., may be
attached to the rear bumper around
the sensors. ( P.255) Removing
the water, snow, mud, etc., from the
attached to the rear bumper around
the sensors to normal.
Additionally, the function may not
function normally when used in
extremely hot or cold environments.
■Rear side radar sensors
 P.255
Turning the RCTA func-
tion on/off
WA R N I N G
■Cautions regarding the use of
the function
The driver is solely responsible for
safe driving. Always drive safely,
taking care to observe your sur-
roundings.
The RCTA function is only a sup-
plementary function which alerts
the driver that a vehicle is
approaching from the right or left
at the rear of the vehicle. As the
RCTA function may not function
correctly under certain condi-
tions, the driver’s own visual con-
firmation of safety is necessary.
Over reliance on this function may
lead to an accident resulting
death or serious injury.

2604-5. Using the driving support systems
COROLLA_U
■Operation of the RCTA function
The RCTA function uses rear side radar sensors to detect vehicles
approaching from the right or left at the rear of the vehicle a nd alerts
the driver of the presence of such vehicles by flashing the out side
rear view mirror indicators and sounding a buzzer.
Approaching vehicles
Detection areas of approaching vehicles
■RCTA icon display
When a vehicle approaching
from the right or left at the rear
of the vehicle is detected, the
following will be displayed on
the audio system display.
 Toyota parking assist moni-
tor: Vehicles are approaching
from both sides of the vehicle
■RCTA function detection areas
The areas that vehicles can be detected in are outlined below.
RCTA function

2614-5. Using the driving support systems
4
Driving
COROLLA_U
The buzzer can alert the driver
of faster vehicles approaching
from farther away.
Example:
■The RCTA function is opera-
tional when
The RCTA function operates when
all of the followin g conditions are
met:
●The engine swit ch is in ON.
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than
approximately 5 mph (8 km/h).
●The approaching vehicle speed is
between approximately 5 mph (8
km/h) and 18 mph (28 km/h).
■Conditions under which the
RCTA function will not detect a
vehicle
The RCTA function is not designed
to detect the following types of vehi-
cles and/or objects:
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking
space next to your vehicle
●Vehicles that the sensors cannot
detect due to obstructions
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles moving away from your
vehicle
●Vehicles approaching from the
parking spaces nex t to your vehi-
cle
*
*
: Depending on the conditions, detection of a v ehicle and/or
object may occur.
■Conditions under which the
RCTA function may not function
correctly
●The RCTA function may not detect
vehicles correctly in the following
situations:
• When a sensor i s misaligned due
to a strong impact to the sensor or
its surrounding area
• When mud, snow, ice, a sticker, etc. is covering a sensor or its sur-
rounding area on the rear bumper
• When driving on a road surface that is wet with standing water
during bad weather, such as
heavy rain, snow, or fog
• When multiple vehicles are
approaching with only a small gap
between each vehicle
• If a vehicle is approaching the rear
of your vehicle rapidly
• When a towing eyelet is installed to the rear of the vehicle. (if
equipped)
• When backing up on a slope with a sharp change in grade
Approaching
vehicle speed Approximate
alert distance
18 mph (28
km/h) (fast)65 ft. (20 m)
5 mph (8 km/h) (slow)18 ft. (5.5 m)

2624-5. Using the driving support systems
COROLLA_U• When backing out of a shallow
angle parking spot
• Immediately after the RCTA func- tion is turned on
• Immediately after the engine is started with the RCTA function on
• When the sensors cannot detect a
vehicle due to obstructions
●Instances of the RCTA function
unnecessarily detecting a vehicle
and/or object may increase in the
following situations:
• When a vehicle passes by the side of your vehicle
• When the parking space faces a
street and vehicles are being
driven on the street • When the distance between your
vehicle and metal objects, such as
a guardrail, wall, sign, or parked
vehicle, which may reflect electri-
cal waves toward the rear of the
vehicle, is short
• When a towing eyelet is installed to the rear of the vehicle (if
equipped)

2724-5. Using the driving support systems
COROLLA_U
■ABS (Anti-lock Brake Sys-
tem)
Helps to prevent wheel lock
when the brakes are applied
suddenly, or if the brakes are
applied while driving on a slip-
pery road surface
■Brake assist
Generates an increased level of
braking force after the brake
pedal is depressed when the
system detects a panic stop sit-
uation
■VSC (Vehicle Stability Con-
trol)
Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces.
■Enhanced VSC (Enhanced
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain 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.
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
Driving assist systems
To keep driving safety and
performance, the following
systems operate automati-
cally in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when oper-
ating the vehicle.
Summary of the driving
assist systems