parking sensors TOYOTA SIENNA 2019 Owners Manual (in English)

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4-5. Using the driving support systems
■The RCTA function is operational when
●The RCTA function is turned on.
● The shift lever is in R.
● Vehicle speed is less than approximately 5 mph (8 km/h).
● 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 vehicles
and/or objects.
● Vehicles approaching from directly behind
● Vehicles backing up in the parking space next to your vehicle
● Guardrails, walls, signs, parked vehicles and similar stationar y objects
*
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles moving away from your vehicle
● Vehicles approaching from the parking spaces next to your vehic le
*
●Vehicles which suddenly accelerate or decelerate near your vehi cle
*: Depending on conditions, detection of a vehicle and/or object may occur.
●
Vehicles that the sensors cannot detect
due to obstructions

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4-5. Using the driving support systems
●Instances of the RCTA function unnecessarily detecting a vehicl e and/or
object may increase in the following situations:
• When a vehicle passes by the side of your vehicle
■ When “Rear Cross Traffic Alert Unavailable” is shown on the mul ti-infor-
mation display
Water, snow, mud, etc., may be built up in the vicinity of the sensor area of
bumper. ( P. 306) Removing the water, snow, mud, etc., from the vicinity of
the sensor area bumper should return it to normal.
Also, the sensor may not function normally when used in extreme ly hot or
cold weather.
■ Setting up BSM function/RCTA function
You can change the BSM function/RCTA function settings. (Custom izable
features: P. 540) • Vehicles that the sensors cannot
detect due to obstructions
• When the parking space faces a street and vehicles are being driven
on the street
• When a vehicle passes by the side of your vehicle
• When the distance between your vehicle and metal objects, such as a
guardrail, wall, sign, or parked vehi-
cle, which may reflect electrical
waves toward the rear of the vehicle,
is short

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4
Driving
Intuitive parking assist
Front corner sensors
(if equipped)
Rear corner sensors
Rear center sensors
Turns the intuitive parking assist
on/off
When on, the indicator light comes
on and the buzzer sounds to inform
the driver that the system is opera-
tional.
: 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 t he multi-information display,
the audio/visual system screen and a buzzer. Always check the
surrounding area when using this system.
Types of sensors
1
2
3
Intuitive parking assist switch

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4-5. Using the driving support systems
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
Sensor detection display, obstacle distance
Multi-
informa- tion
displayInsert displayApproximate distance to obstacle
Toyota
parking assist
monitorPan-
oramic view
monitor
Front and rear
corner sensorsRear center sensors
(continu- ous)(blinking slowly)(blinking slowly)

5.9 ft. (180 cm)
to
2.8 ft. (85 cm)
(continu- ous)(blinking)(blinking)
2.0 ft. (60 cm)
to
1.2 ft. (37.5 cm)2.8 ft. (85 cm)
to
1.5 ft. (45 cm)
(continu-ous)(blinking rapidly)(blinking rapidly)
1.2 ft. (37.5 cm)
to
0.8 ft. (25 cm)1.5 ft. (45 cm)
to
1.1 ft. (35 cm)
(blinking)(continu- ous)(continu- ous)
Less than
0.8 ft. (25 cm)Less than
1.1 ft. (35 cm)
Far
Near

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■The intuitive parking assist can be operated when
●The engine switch is in the “ON” position (vehicles without a s mart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system).
● Front corner sensors:
• The shift lever is not in P.
• The vehicle speed is approximately 6 mph (10 km/h) or less.
● Rear corner and rear center sensors:
The shift lever is in R.
■ Intuitive parking assist display
When an obstacle is detected while the rear view monitor system or pan-
oramic view monitor (if equipped) is in use, the warning indica tor 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 th e vehicle’s
bumper.
● Depending on the shape of the obstacle and other factors, the detection dis-
tance may shorten, or detection may be impossible.
● Obstacles may not be detected if they are too close to the sens or.
● There will be a short delay between obstacle detection and disp lay. Even at
slow speeds, there is a possibility that the obstacle will come within the sen-
sor’s detection.
● Thin posts or objects lower than the sensor may not be detected when
approached, even if they have been detected once.
● It might be difficult to hear beeps due to the volume of audio/ visual system
or air flow noise of the air conditioning system.
■ Certification (Canada only)
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.
WARNING
■When using the Intuiti ve parking assist-sensor
Observe the following precautions.
Failure to do so may result in the vehicle being unable to be d riven safely
and possibly cause an accident.
● Do not use the sensor at speeds in excess of 6 mph (10 km/h).
● The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle ( especially
the sides of the vehicle) for safety, and drive slowly, using t he brake to
control the vehicle’s speed.
● Do not install accessories within the sensors’ detection areas.

SIENNA_OM_OM08025U_(U)
3214-5. Using the driving support systems
4
Driving
WARNING
■Sensors
Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctl y detect an obstacle. Particular instances where
this may occur are listed below.
● There is dirt, snow or ice on the sensor. (Wiping the sensors w ill resolve
this problem.)
● The sensor is frozen. (Thawing the area will resolve this probl em.)
In especially cold weather, if a sensor is frozen the screen ma y show an
abnormal display, or obstacles may not be detected.
● The sensor is covered in any way.
● The vehicle is leaning considerably to one side.
● On an extremely bumpy road, on an incline, on gravel, or on grass.
● The vicinity of the vehicle is noisy due to vehicle horns, moto rcycle
engines, air brakes of large vehicles, or other loud noises pro ducing ultra-
sonic waves.
● There is another vehicle equipped with parking assist sensors i n the vicin-
ity.
● The sensor is coated with a sheet of spray or heavy rain.
● The sensor is drenched with water on a flooded road.
● The vehicle is equipped with a fender pole or wireless antenna.
● Towing eyelets are installed.
● The bumper or sensor receives a strong impact.
● The vehicle is approaching a tall or curved curb.
● The detection range is reduced due to an object such as a sign.
● In harsh sunlight or intense cold weather.
● The area directly under the bumpers is not detected.
● If obstacles draw too close to the sensor.
● A non-genuine Toyota suspension (lowered suspension, etc.) is i nstalled.
● A backlit license plate is installed.
In addition to the examples above, there are instances in which , because of
their shape, signs and other objects may be judged by a sensor to be closer
than they are.

578Alphabetical index
SIENNA_OM_OM08025U_(U)
Navigation system*Noise from under vehicle............ 8
Odometer.................................... 90
OilEngine oil .............................. 518
Opener
Back door.............................. 134
Fuel filler door ....................... 258
Hood ..................................... 407
Outer foot lights Outer foot lights .................... 347
Replacing light bulbs............. 456
Outside rear view mirrors Adjusting and folding ............ 181
BSM (Blind spot monitor) ...... 303
Driving position memory ....... 169
Outside rear view mirror defoggers ........................... 336
Outside temperature display ...................................... 90
Overhead console ................... 358
Overheating, Engine................ 509 Panoramic view monitor
*
Parking assist sensors
(intuitive parking assist)....... 315
Parking brake........................... 240 Operation .............................. 240
Parking brake
engaged warning
buzzer ................................ 471
Parking lights Light switch ........................... 241
Replacing light bulbs .... 450, 456
Wattage ................................ 525
PCS (Pre-Collision System).... 267 Enabling/disabling the
system .......... ...................... 270
Function ................................ 267
Warning light......................... 472
Personal lights Switch ................................... 348
Wattage ................................ 525
Power back door ..................... 133
Power outlets ........................... 365
Power windows Jam protection function ........ 185
Operation .............................. 184
Window lock switch .............. 184
Pre-collision system (PCS)..... 267
Enabling/disabling the system .......... ...................... 270
Function ................................ 267
Warning light......................... 472
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