2023 TOYOTA RAIZE sensor

2204-5. Using the driving support systems
RAIZE_OM_General_BZ358E
⬛Situations where the RCTA function may not work properly
⚫The RCTA function may not detect vehicles correctly in the following circumstances.
⦁The sensor positions or orientations are off due to a strong impact applied
to the sensors or the surrounding areas
⦁ The sensors or the rear bumper near the sensors are covered with mud,
snow, ice, or stickers
⦁ Driving on a wet road or driving in a puddle under bad weather conditions,
such as heavy rain, snow, or fog
⦁ When several vehicles are passing continuously behind your vehicle or
when a vehicle is approaching from th e opposite direction to the vehicle
detected first
⦁ When the vehicle is parked on a hill or an uneven road
⦁ When the vehicle has accessories such as a bicycle carrier installed in the
rear side
⦁ When the vehicle is moving backward on a steep hill with varying slopes
⦁ When the vehicle is parked diagonally
⦁ Right after turning on the RCTA function
⦁ Right after starting the engine wi th the RCTA function turned on
⦁ When being affected by radio wave interference from the radar sensors
installed on the vehicle parked next to your vehicle
⦁ When getting out from a sloped parking spot
⦁ When a large vehicle is parked next to your vehicle
⦁ When the vehicle is backing up at fast speed
⚫The RCTA function may have more unnecessary detections, especially in the
following circumstances.
⦁The sensor positions or orientations are off due to a strong impact applied
to the sensors or the surrounding areas
⦁ When another vehicle passes through the side of your vehicle
⦁ When the vehicle is traveling on a
road facing a parking lot
⦁ When metal objects (such as guardrails, walls, signs, parked vehicles) that
can easily reflect radio waves are located behind the vehicle
⦁ When the vehicle has accessories such as a bicycle carrier installed in the
rear side
⦁ When buildings or roadside walls are present in the direction to which the
vehicle is backing up
KBRO460508
RAIZE_OM_General_BZ358E.book 220 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2214-5. Using the driving support systems
RAIZE_OM_General_BZ358E✽
: If equipped
Driving
4
Front corner sensors✽/Reverse sensors✽
The front corner sensors and reverse sensors are the system that
uses the sonar to recognize the approximate distance between the
vehicle and the obstacle, and that notifies the driver of its presence
by the buzzer and display indica tors when the vehicle speed is
approx. 10 km/h (6 mph) or less.
Sonar positions and types
a Front sonar
The front corner sensors are used to
recognize necessary information.
bRear sonar
The reverse sensors are used to recog-
nize necessary information.
Switching front corner sensors and reverse sensors
(For vehicles with front corner sensors)
Press the switch
Pressing the switch turns on the front
corner sensors or reverse sensors and
lights up the switch-on indicator.
To turn it off, press the switch again.
How to display the front corner sensors or reverse sensors
Once an obstacle is recognized, they
are displayed automatically.
aFront corner sensor ON indicator
b Reverse sensor ON indicator
12KBRO451001E
KBRO451002E
11
22
KBRO451003E
RAIZE_OM_General_BZ358E.book 221 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2234-5. Using the driving support systems
RAIZE_OM_General_BZ358E
Driving
4
Sonar’s obstacle recognition range
The recognition areas are shown in
the right figure.
However, if the obstacle is too close
to the sonar, the recognition fails.
Depending on the obstacles’ shape
and conditions, the recognition
range may become shorter, or the
recognition may fail.
⬛Operating conditions
⚫Front corner sensors:
⦁When the engine switch is “ON”
⦁ When the front corner sensors/reverse sensors switch is ON
⦁ When the shift lever is set in other than P, and the vehicle speed is approx.
10 km/h or less
⚫Reverse sensors:
⦁When the engine switch is “ON”
⦁ Vehicles with front corner sensors:
When the front corner sensors/reverse sensors switch is ON
⦁ When the shift lever is set in R, and the vehicle speed is approx. 10 km/h or
less
⚫When an obstacle is recognized with all the activation conditions satisfied
and the parking brake not being applied, the buzzer will sound.
⬛Sonar recognition capabilities
⚫The sonar recognition range is limited to the area around the sonar on the
front side of the vehicle and th e rear bumper of the vehicle.
⚫It takes some time from when the sonar recognizes an obstacle until the
front corner sensors or reverse sensors become activated. If the vehicle gets
too close to the obstacle before the buzzers sounds, the buzzer may not
sound even when the vehicle is traveling at a slow speed.
⚫While the audio or air conditioning system is turned on, the music or fan
noise makes the buzzer sound difficult to hear.
KBRO451004E
RAIZE_OM_General_BZ358E.book 223 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2244-5. Using the driving support systems
RAIZE_OM_General_BZ358E
⬛When the high-pitch short beeps sound 3 times repeatedly and the front
corner sensor or reverse sensor ON indicator appears at 2 front locations
or 2 rear locations (or all 4 locations) simultaneously
⚫The front corner sensor or reverse se nsor functionality has been degraded.
When the front corner sensor or re verse sensor functionality temporarily
turns off, check if the sonar is not cove red with rain, snow, ice, or dirt. Remove
those attached to it, then wait for the f unctionality to be restored to normal.
⚫If the master warning light turns on at this time, it may indicate a malfunc-
tion of the system. Have the vehicle inspected at your Toyota dealer.
⚫Vehicles with TFT color multi-informati on display: Depending on the condi-
tions, the warning messages as “Son ar Sensor Function Stop” and “Sonar
Sensor Malfunction Visit Your Dealer” will be displayed.
⬛Front corner sensors and reverse sensors
In the following cases, the system ma y become activated even when there is
no obstacle within the operating range.
⚫When driving an area where the road slopes suddenly change
⚫When passing through plastic curtains or driving under flags
⚫When water splashes or drifting snow whirls up
⚫When passing an obstacle at close range
⚫When using an elevator for automobiles or using a mechanical parking lot
⚫When driving over a bump with an obstacle near the vehicle
⚫When there is an obstacle near the side of the vehicle
⚫When the road surface has large bumps, curbstones or protrusions, or when
the ground surface has tire tracks and holes
⚫When entering into a tight space
⚫During pouring rain or when water splashes over the vehicle
⚫Bad weather (heavy rain, snowstorm, fog, etc.)
⚫When the following is present near the vehicle: the sound of other vehicles’
horns, motorcycle engines, and air brakes of large vehicles, the devices emitting
ultrasonic waves, such as vehicle detect ors, or sonar systems of other vehicles
⚫When commercially available electrical components (such as an internally illu-
minated number plate, radio antenna) are installed near the sonar sensors
⚫When the vehicle body has been considerably tilted
⚫When the vehicle height has significantly changed by the load conditions, etc.
⚫When the direction of the sonar sensors is deviated by a collision or other
causes
⚫When the sonar sensors are covere d with rain, snow, ice or dirt
RAIZE_OM_General_BZ358E.book 224 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2254-5. Using the driving support systems
RAIZE_OM_General_BZ358E
Driving
4
WARNING
⬛Before using the front corner sensors or reverse sensors
Make sure to observe the following precautions.
Failure to do so is dangerous, as it may lead to an unforeseen accident.
⚫Do not let the vehicle speed exceed approx. 10 km/h (6 mph).
⚫There is a limit to the sonar’s recognition range and activation speed. When
you move your vehicle forward or backward, make sure to check the safety
around the vehicle, which is outside the sonar’s recognition range (especially
the sides of the vehicle), use the brak e pedal to control the speed adequately
and drive slowly.
⚫Do not paste stickers or install accesso ries on the sonar sensors or their sur-
rounding areas.
⚫Vehicles with TFT color multi-informa tion display: If the warning message
“Sonar Sensor Function Stop” appears, check the sonar conditions. If the
warning message appears even when the sonar is not covered with rain,
snow, ice, or dirt, it could be due to a malfunction of the front corner sensors
or reverse sensors. Have the vehicl e inspected at your Toyota dealer.
⬛Front corner sensors and reverse sensors
In the following situations, the front corner sensors or reverse sensors may
not work normally and could lead to an unforeseen accident. Make sure to
drive carefully.
⚫Road conditions (slopes, unevenness, etc.)
⚫Vehicle’s maintenance conditions (brake-r elated issues, worn out tires, infla-
tion pressure, driving on a spare tire, etc.)
⚫Bad weather (heavy rain, snowstorm, fog, etc.)
⚫When the vehicle is signif icantly tilted by carrying a heavy load or being on
the surface with different height, or when the vehicle height has significantly
changed
⚫Distance from the obstacle, orientatio n or position (the obstacle is located
near the center of the vehicle)
⚫When driving on a steep slope
⚫When the sonar system cannot recognize the obstacle correctly (the follow-
ing cases in particular)
⦁ When an obstacle is extremely clos e to the sonar (when approaching too
close to the obstacle, the buzzer may change from continuous sound to
intermittent sound)
⦁ When an obstacle is located at a high position from the ground
⦁ Short obstacles
⦁ Small obstacles (such as small animals and infants), narrow obstacles
RAIZE_OM_General_BZ358E.book 225 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2264-5. Using the driving support systems
RAIZE_OM_General_BZ358E
WARNING
⦁Moving objects (those appearing sudd enly or traveling across the vehicle)
⦁ Sponge-like items or obstacles with soft surfaces such as snow, which are
likely to absorb sound waves
⦁ When the obstacle’s surface is diagonal to the vehicle
⦁ A wall that is not perpendicular to the ground
⦁ Non-planar walls, such as those with uneven or wavy surface
⦁ Thin obstacles such as wires, wire mesh , ropes, road signs, utility poles and
other poles
⦁ When pillars or pipes are sticking out from the wall
⦁ When an unrecognizable obstacle is located between a recognizable
obstacle and the vehicle
⦁ Obstacles located outside of the sonar’s recognition range
⦁ When the sonar sensor areas are extremely hot under the blazing sun or
extremely cold during winter
⦁ When the sonar sensors are covere d with rain, snow, ice or dirt
⦁ During pouring rain or when water splashes over the vehicle, or strong
wind blowing
⦁ When there is a loud noise around, or there are devices emitting ultra-
sonic waves (the sound of other vehicles’ horns, motorcycle engines, and
air brakes of large vehicles, vehicle detectors, or sonar systems of other
vehicles)
⦁ When commercially availa ble electrical components (such as an internally
illuminated number plate, radio anten na) are installed near the sonar sen-
sors
⦁ When the direction of the sonar sensors is deviated by a collision or other
causes
RAIZE_OM_General_BZ358E.book 226 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2274-5. Using the driving support systems
RAIZE_OM_General_BZ358E
Driving
4
NOTICE
⬛Abnormality with the front corner sensors and reverse sensors
In the following cases, abnormalities with the sonar may be preventing the sys-
tem from working properly. Have the vehicle inspected at your Toyota dealer.
⚫When the front corner sensors or reverse sensors became activated while
no obstacle is recognized
⚫When a strong impact or force is ap plied to the sonar or its surrounding
areas
⚫When the sonar’s surrounding area has been deformed by an accident or
other reasons
⬛Precautions when wa shing the vehicle
⚫Do not splash water directly to the sonar areas using a high-pressure washer
during a car wash. The high water pressure adds stress and may prevent the
system from working properly.
⚫When you wash the car with a machine using steam, keep the steam away
from the sonar area. The steam may cause the system to malfunction.
RAIZE_OM_General_BZ358E.book 227 ページ ２０２２年５月１７日　火曜日　午後１時５９分

2595-1. Using the air conditioning system and defogger
RAIZE_OM_General_BZ358E
Interior features
5
⬛Operation of the automatic mode
The fan speed is adjusted automatically in accordance with the temperature
setting and ambient conditions. Th erefore, immediately after is
pressed, the fan may stop for a while until warm or cool air is ready to flow.
⬛Temperature control sensors
The automatic air conditioning system has sensors so that it can control tem-
perature automatically.
a Solar radiation sensor
Detects the amount of solar radia-
tion.
b Inside air temperature sensor
Detects the temperature of inside
air.
If an object is placed on the solar radiation sensor, or the inside air tempera-
ture sensor is covered up with stickers or the like, these sensors may not work
properly.
⬛Using the air conditioni ng system for cooling
In rare cases, it may appear that fog is blowing out of the air outlet, but this is
normal when moist air is suddenly cooled.
⬛Fogging up of the windows
⚫The windows will easily fog up when th e humidity in the vehicle is high.
Turning on will flow the dehumi dified air from the outlets and
defog the windshield effectively.
⚫If you turn off, the windows may fog up more easily.
⚫The windows may fog up if the re circulated air mode is used.
1
2
KBRO510221E
RAIZE_OM_General_BZ358E.book 259 ページ ２０２２年５月１７日　火曜日　午後１時５９分