Toyota 4Runner (2023 year). Manual in english - page 17

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Vehicles that can be detected by the Blind Spot Monitor

The Blind Spot Monitor uses radar sensors to detect the following
vehicles traveling in adjacent lanes and advises the driver of the
presence of such vehicles via 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 rapidly from behind in areas that
are not visible using the outside rear view mirrors (the blind
spots)

Blind Spot Monitor operation

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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 side of
the vehicle

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the

side of the vehicle cannot be detected.

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

: The greater the difference in speed between your vehicle and the

detected vehicle is, the farther away the vehicle will be detected, caus-
ing the outside rear view mirror indicator to illuminate or flash.

WARNING

■

Cautions regarding the use of the system

The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The Blind Spot Monitor is a supplementary function which alerts the driver
that a vehicle is in a blind spot of the outside rear view mirrors or is
approaching rapidly from behind into a blind spot. Do not overly rely on the
Blind Spot Monitor.
As the function cannot judge if it is safe to change lanes, over reliance could
lead to an accident resulting in death or serious injury. As the system may
not function correctly under certain conditions, the driver’s own visual confir-
mation of safety is necessary.

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The Blind Spot Monitor is operational when

The Blind Spot Monitor is operational when all of the following conditions are
met:

●

The engine switch is in the IGNITION ON mode.

●

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 Monitor will detect a vehicle present in the detection area in
the following situations:

●

A vehicle in an adjacent lane overtakes your vehicle.

●

You overtake a vehicle in adjacent lane slowly.

●

Another vehicle enters the detection area when it changes lanes.

■

Conditions under which the system will not detect a vehicle

The Blind Spot Monitor is not designed to detect the following types of vehi-
cles 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 overtaken rapidly by your vehicle.

: Depending on the conditions, detection of a vehicle and/or object may

occur.

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Conditions under which the system may not function correctly

●

The Blind Spot Monitor may not detect vehicles correctly in the following sit-
uations:
• When the sensor is misaligned due to a strong impact to the sensor or its

surrounding area

• When mud, snow, ice, a sticker, etc. is covering the sensor or surround-

ing 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 difference in speed between your vehicle 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 consecutive steep inclines, such as hills, dips

in the road, etc.

• When driving on roads with sharp bends, consecutive curves, or uneven

surfaces

• When vehicle lanes are wide, or when driving on the edge of a lane, and

the vehicle in an adjacent lane is far away from your vehicle

• When an accessory (such as a bicycle carrier) or towing eyelet is

installed to the rear of the vehicle

• When there is a significant difference in height between your vehicle and

the vehicle that enters the detection area

• Immediately after the Blind Spot Monitor is turned on

●

Instances of the Blind Spot Monitor unnecessarily detecting a vehicle and/or
object may increase in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its

surrounding area

• When the distance between your vehicle and a guardrail, wall, etc. that

enters the detection area is short

• When driving up and down consecutive 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 distance between your vehicle and a following vehicle is short
• When an accessory (such as a bicycle carrier) or towing eyelet is

installed to the rear of the vehicle

• When the vehicle throws up water or snow behind.

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Front corner sensors
Rear corner sensors
Rear center sensors

Press

of the meter con-

trol switches, select

Press

of the meter con-

trol switches, select

Press

of the meter control

switch.

Each time

is pressed, the function changes on/off.

When on, the indicator light comes on to inform the driver that the sys-
tem is operational.

Intuitive parking assist



: If equipped

The distance from your vehicle to nearby obstacles when paral-
lel  parking  or  maneuvering  into  a  garage  is  measured  by  the
sensors  and  communicated  via  the  multi-information  display
and  a  buzzer. Always  check  the  surrounding  area  when  using
this system.

Types of sensors

Turning the intuitive parking assist on/off

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Multi-information display

Front corner sensor opera-
tion
Rear corner sensor operation
Rear center sensor operation

Display

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Distance display

Sensors that detect an obstacle will illuminate continuously or blink.

: The images may differ from those shown in the illustrations. (



P. 278)

Sensor detection display, obstacle distance

Multi-information

display

Approximate distance to obstacle

Rear center sensor

Front and rear corner

sensor

(continuous)

Far

Near

4.9 ft. (150 cm) to
2.0 ft. (60 cm)



(continuous)

2.0 ft. (60 cm) to
1.5 ft. (45 cm)

(continuous)

1.5 ft. (45 cm) to
1.2 ft. (35 cm)

(blinking)

Less than
1.2 ft. (35 cm)

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Buzzer operation and distance to an obstacle

A buzzer sounds when the sensors are operating.

●

The buzzer sounds faster as the vehicle approaches an obstacle.
When the vehicle comes within the following distance of the
obstacle, the buzzer sounds continuously: Approximately 1.2 ft.
(35 cm).

●

When 2 or more obstacles are detected simultaneously, the
buzzer system responds to the nearest obstacle. If one or both
come within the above distances, the beep will repeat a long
tone, followed by fast beeps.

Approximately 2.0 ft. (60 cm)
Approximately 4.9 ft. (150 cm)

The  diagram  shows  the  detection
range of the sensors. Note that the
sensors  cannot  detect  obstacles
that  are  extremely  close  to  the
vehicle.
The  range  of  the  sensors  may
change depending on the shape of
the object etc.

Detection range of the sensors

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Intuitive parking assist can be operated when

●

Front corner sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in a position other than P.
• The vehicle speed is less than approximately 6 mph (10 km/h).

●

Rear corner and rear center sensors:
• The engine switch is in IGNITION ON mode.
• The shift lever is in R.

■

Intuitive parking assist display

When an obstacle is detected while the Toyota parking assist monitor is in
use, the warning indicator will appear in the upper part of the screen even if
the display setting has been set to off.

■

Sensor detection information

●

The sensor’s detection areas are limited to the areas around the vehicle’s
front corner and rear bumpers.

●

The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection

distance may shorten, or detection may be impossible.

• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even

at slow speeds, there is a possibility that the obstacle will come within the
sensor’s detection areas before the display is shown and the warning
beep sounds.

• Thin posts or objects lower than the sensor may not be detected for colli-

sion when approached, even if they have been detected once.

• It might be difficult to hear beeps due to the volume of audio system or air

flow noise of air conditioning system.

■

Objects which the system may not be properly detected

●

Wires, fences, ropes, etc.

●

Cotton, snow and other materials that absorb sound waves

●

Sharply-angled objects

●

Low obstacles

●

Tall obstacles with upper sections projecting outwards in the direction of
your vehicle

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Situations in which the system may not operate properly

Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect objects. Particular instances where this
may occur are listed below.

●

There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)

●

A sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the sensor display may be
displayed abnormally, or objects, such as a wall, may not be detected.

●

On an extremely bumpy road, on an incline, on gravel, or on grass.

●

When vehicle horns, vehicle detectors, motorcycle engines, air brakes of
large vehicles, the clearance sonar of other vehicles or other devices which
produce ultrasonic waves are near the vehicle

●

A sensor is coated with a sheet of spray or heavy rain.

●

If objects draw too close to the sensor.

●

When a pedestrian is wearing clothing that does not reflect ultrasonic waves
(ex. skirts with gathers or frills).

●

When objects that are not perpendicular to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the detection range.

●

Strong wind is blowing

●

When driving in inclement weather such as fog, snow or a sandstorm

●

When an object that cannot be detected is between the vehicle and a
detected object

●

If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front
of the vehicle or runs out from the side of the vehicle

●

If the orientation of a sensor has been changed due to a collision or other
impact

●

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

●

If the front of the vehicle is raised or lowered due to the carried load

●

If the vehicle cannot be driven in a stable manner, such as when the vehicle
has been in an accident or is malfunctioning

●

When a tire chains, compact spare tire or an emergency tire puncture repair
kit is used

●

When a sensor or the area around a
sensor is extremely hot or cold.

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Situations in which the system may operate even if there is no possibil-
ity of a collision

In some situations, such as the following, the system may operate even
though there is no possibility of a collision.

●

When driving toward a banner, flag, low-hanging branch or boom barrier
(such as those used at railroad crossings, toll gates and parking lots)

●

When there is a rut or hole in the surface of the road

●

When driving on a metal cover (grating), such as those used for drainage
ditches

●

When driving up or down a steep slope

●

If a sensor is hit by a large amount of water, such as when driving on a
flooded road

●

There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)

●

A sensor is coated with a sheet of spray or heavy rain

●

When driving in inclement weather such as fog, snow or a sandstorm

●

When vehicle horns, vehicle detectors, motorcycle engines, air brakes of
large vehicles, the clearance sonar of other vehicles or other devices which
produce ultrasonic waves are near the vehicle

●

If the front of the vehicle is raised or lowered due to the carried load

●

If the orientation of a sensor has been changed due to a collision or other
impact

●

The vehicle is approaching a tall or curved curb

●

Driving close to columns (H-shaped steel beams, etc.) in multi-story parking
garages, construction sites, etc.

●

If the vehicle cannot be driven in a stable manner, such as when the vehicle
has been in an accident or is malfunctioning

●

When driving on a narrow road

●

When strong winds are blowing

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4-5. Using the driving support systems

●

When a tire chains, compact spare tire or an emergency tire puncture repair
kit is used

■

When the system malfunctions

●

If “Clean park sonar” is shown
A sensor may be dirty or covered with snow or ice. In such cases, if it is
removed from the sensor, the system should return to normal. Also, due to
the sensor being frozen at low temperatures, a malfunction display may
appear or an obstacle may not be detected. If the sensor thaws out, the sys-
tem should return to normal.

●

If “Check park sonar system” is shown
Depending on the malfunction of the sensor, the device may not be working
normally. Have the vehicle inspected by your Toyota dealer.

■

Customization that can be configured at Toyota dealer

Some functions can be customized. (Customizable features



P. 549)

■

Certification



For vehicles sold in the U.S.A.

This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions; (1) This device may not cause harmful interfer-
ence, and (2) This device must accept any interference received, including
interference that may cause undesired operation.



For vehicles sold in Canada

This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.

●

On an extremely bumpy road, on an
incline, on gravel, or on grass

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WARNING

■

Cautions regarding the use of the system

There is a limit to the degree of recognition 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’ surroundings
and driving safely.

■

To ensure the system can operate properly

Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven safely
and possibly cause an accident.

●

Do not damage the sensors, and always keep them clean.

●

Do not attach a sticker or install an electronic component, such as a backlit
license plate (especially fluorescent type), fog lights, fender pole or wire-
less antenna near a radar sensor.

●

Do not subject the surrounding area of the sensor to a strong impact. If
subjected to an impact, have the vehicle inspected by your Toyota dealer.
If the front or rear bumper needs to be removed/installed or replaced, con-
tact your Toyota dealer.

●

Do not modify, disassemble or paint the sensors.

●

Do not attach a license plate cover.

●

Keep your tires properly inflated.

■

When to disable the function

In the following situations, disable the function as it may operate even
though there is no possibility of a collision.

●

Failing to observe the warnings above.

●

A non-genuine Toyota suspension (lowered suspension, etc.) is installed.

■

Notes when washing the vehicle

Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.

●

When using a high pressure washer to wash the vehicle, do not spray the
sensors directly, as doing so may cause a sensor to malfunction.

●

When using steam to clean the vehicle, do not direct steam too close to
the sensors as doing so may cause a sensor to malfunction.

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4-5. Using the driving support systems

Multi-information display

Turning the RCTA function on/off.

Outside rear view mirror indica-
tors

When  a  vehicle  approaching  from
the  right  or  left  at  the  rear  of  the
vehicle  is  detected,  both  outside
rear  view  mirror  indicators  will
flash.

Navigation system screen

If a vehicle approaching from the
right or left at the rear of the vehicle
is detected, the RCTA icon (



288) for the detected side will be
displayed.

RCTA buzzer

If a vehicle approaching from the right or left at the rear of the vehicle is
detected, a buzzer will sound.

The RCTA function can be enabled/disabled on

screen of the

multi-information display. (



P. 95)

When the RCTA function is disabled, the “RCTA OFF” indicator will come
on. Each time the engine switch is turned off then changed to the IGNI-
TION ON mode, the RCTA function will be enabled automatically.

RCTA (Rear Cross Traffic Alert)

The RCTA function uses the BSM radar sensors installed on the
inner side of the rear bumper. This function is intended to assist
the driver in checking areas that are not easily visible when
backing up.

System components

Turning the RCTA function on/off

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Outside rear view mirror indicator 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 “RCTA Unavailable” is shown on the multi-information display

Water, snow, mud, etc., may be attached to the rear bumper around the sen-
sors (



P. 272). Removing the water, snow, mud, etc., from the vicinity of the

sensor area should return it to normal. Also, the sensor may not function nor-
mally when used in extremely hot or cold weather.

■

When “RCTA Malfunction Visit Your Dealer” is shown on the multi-infor-
mation display

There may be a sensor malfunction or misaligned. Have the vehicle
inspected by your Toyota dealer.

■

Radar sensors



P. 272

■

Customization

Some functions can be customized. (



P. 558)

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Operation of the RCTA function

The  RCTA  function  uses  radar  sensors  to  detect  vehicles
approaching  from  the  right  or  left  at  the  rear  of  the  vehicle  and
alerts  the  driver  of  the  presence  of  such  vehicles  by  flashing  the
outside 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 navigation system screen.
Example:

Vehicles

are

approaching from both sides of
the vehicle.

RCTA function

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