2023 TOYOTA PRIUS parking sensors

4284-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
■Back-in parking assist mode operating conditions
● In order to operate the function correctly, drive slowly (at a speed at which
the vehicle can be quickly stopped).
● In order to operate the function correctly, drive slowly (at a speed at which
the vehicle can be quickly stopped). Come to a full stop so that the center of
the parking space is nearly perpendicular to the vehicle, and then operate
the S-IPA switch.
● The function cannot be used when the vehicle speed is approximately
30 km/h (19 mph) or higher.
● The front side sensors and rear side sensors are used to detect parked
vehicles and determine the parking spot. Therefore, when detection is not
possible ( P. 439), guidance is not issued.
● If there are no parked vehicles, the parking spot cannot be determined.
Therefore, the back-in parking assist mode cannot be operated.
● If unable to detect the environment surrounding the parking space, the
back-in parking assist mode may not be able to operate.
● Depending on the condition of the park-
ing space, if there is not enough space
in front of the vehicle required to perform
the parking operation, the target parking
spot may not be reachable.
Intended parking spot
Wal l
1
2

4294-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
■ Tips for using the back-in parking assist mode
● Leave a gap of approximately 1 m
(3.3 ft.) from any parked vehicles and
approach the target parking spot. If the
gap between your vehicle and any
parked vehicles is too large, the front
side sensors and rear side sensors may
not be able to detect the parked vehi-
cles.
● Stop so that the center of the target
parking spot is perpendicular to the vehi-
cle. Furthermore, only push the S-IPA
switch when the vehicle is at a complete
stop.
NOTICE
● If the road surface has any dips or inclines, the target parking spot cannot
be correctly set. Therefore, the vehicle may be parked at an angle or may
deviate from the parking spot. In these cases, do not use the back-in park-
ing assist mode.
● When parking in a narrow space, the vehicle will come close to adjacent
vehicles. If it seems the vehicle may make contact, stop the vehicle by
depressing the brake pedal.
● It may not be possible to detect objects that are low to the ground. Directly
confirm the safety of your surroundings and, if it seems the vehicle may
make contact with an obstacle, stop the vehicle by depressing the brake
pedal.
● Depending on the surrounding environment, such as other parked vehi-
cles, the vehicle may be parked at an angle or may deviate from the park-
ing spot. Manually adjust vehi cle alignment as necessary.
1 m
(3.3 ft.)

4354-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
■Sensors
Detect the vehicle to help determine the parking spot.
Front side sensors
Rear side sensors
Precautions during use
1
2
● The sensor detection range when using
back-in parking assist mode
Intended parking spot
● The sensor detection range when using
parallel parking assist mode
Intended parking spot
1
1

4384-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
WARNING
●Do not use the system in the following situations, as the system may be
unable to correctly assist you in reaching the target parking spot and may
lead to an unexpected accident.
• In an area that is not a parking lot
• A parking lot that is not paved and has no parking space lines, such as
a sand or gravel parking lot
• A parking lot that has a slope or undulations in the road
• A frozen, snow-covered or slippery road
• The asphalt is melting due to hot weather
• There is an obstacle between the vehicle and the target parking spot
• Using tire chains or compact spare tire (if equipped)
● Do not use tire other than that provided by the manufacturer. The system
may not operate properly. When replacing tires, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
● The system may not be able position the vehicle in the set location in the
following situations.
• The tires are extremely worn or the tire pressure is low
• The vehicle is carrying very heavy load
• The vehicle is tilted due to having luggage, etc. located on one side of
the vehicle
• There are road heaters installed in the parking lot to prevent the road
surface from freezing.
In any other situations when the set position and vehicle position greatly
differ, have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
● Make sure to observe the following precautions regarding the exit parallel
parking assist mode.
Exit parallel parking assist mode is a function used when departing from a
parallel parking spot. However, this function may not be usable if obsta-
cles or people are detected in front of the vehicle. Only use this function
when departing from a parallel parking s pot. In the event that the steering
control operates, either turn the system off using the S-IPA switch or oper-
ate the steering wheel to stop the control.
● If exit parallel parking assist mode is mistakenly used in the following situ-
ations, the vehicle may make contact with an obstacle.
The departure function is operated in a direction where an obstacle is
present, but the obstacle is not detected by the side sensors (situations
such as when the vehicle is directly beside a pole).

4394-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
WARNING
●Observe the following precautions, as the sensors may stop functioning
properly which may lead to an accident.
• Do not subject the sensor to strong shocks by hitting it, etc. The sen-
sors may not function properly.
• When using a high-pressure washer to wash the vehicle, do not spray
water directly on the sensors. Equipment may not function properly if
subjected to an impact from strong water pressure. If the vehicle
bumper strikes something, equipment may not operate properly due to
a sensor malfunction. Have the vehicle inspected at any authorized
Toyota retailer or Toyota authoriz ed repairer, or any reliable repairer.
● In the following situations, the sensors may not operate normally and may
lead to an accident. Drive carefully.
• Obstacles cannot be detected in the side areas until a scan of the side
areas is completed. ( P. 388)
• Even after the scan of the side areas is completed, obstacles such as
other vehicles, people or animals that approach from the sides cannot
be detected.
• The sensor is frozen (if it thaws, the system returns to normal).
A warning message may display at particularly low temperatures due to
the sensor freezing and it may not detect parked vehicles.
• The sensor is blocked by someone’s hand.
• The vehicle is tilted a large amount.
• The temperature is extremely hot or cold.
• The vehicle is driven on undulating roads, slopes, gravel roads, in areas
with tall grass, etc.
• An ultrasonic wave source is nearby, such as the horn or sensors of
another vehicle, a motorcycle engine or the air brake of a large vehicle.
• Heavy rain or a water strikes the vehicle.
• The angle of the sensor may be deviated when assist control starts
even if there is a parked vehicle in the target parking spot. Have the
vehicle inspected at any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
• Do not install any accessories within the sensor detection range.

6768-2. Customization
PRIUS_OM_OM47F32E_(EE)■
Toyota parking assist-sensor* (P. 381)
*: If equipped
■
S-IPA (Simple Intelligent Parking Assist System)* (P. 405)
*: If equipped
■
Automatic air conditioning system (P. 458)
FunctionDefault
settingCustomized
setting
Detection distance of the front
center sensorsFarNear––O
Detection distance of the rear
center sensorsFarNear––O
Buzzer volume31 to 5––O
123
FunctionDefault
settingCustomized
setting
Obstacle detection rangeStandard
Near
––OSlightly far
Far
Back-in parking spaceStandard
Narrow
––OSlightly wide
Wide
Parallel parking spaceStandard
Narrow
––OSlightly wide
Wide
123
FunctionDefault
settingCustomized
setting
Switching between outside air
and recirculated air mode
linked to A/C auto switch oper-
ation
OnOff–OO
123

696Alphabetical index
PRIUS_OM_OM47F32E_(EE)
P position switch ..................... 254
Panoramic view monitor
*
Parking assist sensors
Parking Support Brake
function ............................... 394
S-IPA (Simple Intelligent
Parking Assist System)....... 405
Toyota parking
assist-sensor ...................... 381
Parking brake ........................... 260
Operation .............................. 260
Parking brake engaged
warning buzzer ................... 260
Parking lock ............................. 254
Parking Support Brake
function .................................. 394
PCS (Pre-Collision System) .... 296
Enabling/disabling the
system ................................ 300
Function ................................ 296
Warning light ......................... 582
Personal lights ......................... 470
Switch ................................... 471
Wattage................................. 667
Power control unit coolant ..... 518
Capacity ................................ 662
Checking ............................... 518
Preparing and checking
before winter....................... 452
Radiator ................................ 520
Power outlets ........................... 486
Power steering (Electric
Power Steering) ..................... 442
Function ................................ 442
Warning light ......................... 581Power switch............................ 244
Auto power off function ......... 246
Changing the power
switch modes...................... 246
If your vehicle has to be
stopped in an emergency ... 569
Starting the hybrid system .... 244
Power windows........................ 210
Catch protection function ...... 211
Door lock linked window
operation ............................ 212
Jam protection function......... 211
Operation .............................. 210
Window lock switch............... 210
Pre-Collision System (PCS) .... 296
Enabling/disabling the
system ................................ 300
Function ................................ 296
Warning light ......................... 582
Radar cruise control
Dynamic radar cruise control
with full-speed range .......... 329
Radiator .................................... 520
Radio
*
RCTA (Rear Crossing Traffic
Alert) ....................................... 375
Blind Spot Monitor
function ............................... 372
Rear Crossing Traffic Alert
function ............................... 375
Rear Crossing Traffic Alert
(RCTA) .................................... 375
Blind Spot Monitor
function ............................... 372
Rear Crossing Traffic Alert
function ............................... 375
P
R