Page 354 of 744

3545-3. Operating the lights and wipers
PRIUS PHV_OM_OM47A89E_(EE)
WARNING
■Caution regarding the use of windshield wipers in AUTO mode
The windshield wipers may operate unexpectedly if the sensor is touched or
the windshield is subject to vibration in AUTO mode. Take care that your fin-
gers etc. do not become caught in the windshield wipers.
■ Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility. This
may lead to an accident, resulting in death or serious injury.
NOTICE
■ When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■ When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■ When a nozzle becomes blocked
In this case, contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
Do not try to clear it with a pin or other object. The nozzle will be damaged.
■ To prevent 12-volt battery discharge
Do not leave the wipers on longer than necessary when the hybrid system
is off.
Page 360 of 744

3605-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
The pre-crash safety system is equipped with a sophisticated com-
puter that will record certain data, such as:
• Accelerator status
• Brake status
• Vehicle speed
• Operation status of the pre-crash safety system functions
• Information (such as the distance and relative speed between your
vehicle and the vehicle ahead or other objects)
• Images from the camera sensor (available only when the pre-crash
braking function is operating)
The pre-crash safety system does not record conversations, sounds
or pictures.
●Data usage
Toyota may use the data recorded in this computer to diagnose
malfunctions, conduct research and development, and improve
quality.
Toyota will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the
lessee if the vehicle is leased
• In response to an official request by the police, a court of law or a
government agency
• For use by Toyota in a lawsuit
• For research purposes where the data is not tied to a specific
vehicle or vehicle owner
Vehicle data recording
Page 361 of 744
3615-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
Two types of sensors, located behind the front grille and windshield,
detect information necessary to operate the drive assist systems.
Radar sensor
Camera sensor
Sensors
1
2
Page 362 of 744

3625-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
WARNING
■To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operate properly, possibly leading to
an accident resulting in death or serious injury.
● Keep the radar sensor and front grille emblem clean at all times.
● Do not attach accessories, stickers (including transparent stickers) or
other items to the radar sensor, front grille emblem or surrounding area.
● Do not subject the radar sensor or surrounding area to a strong impact.
If the radar sensor, front grille, or front bumper has been subjected to a
strong impact, have the vehicle inspected by any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
● Do not disassemble the radar sensor.
● Do not modify or paint the radar sensor, front grille emblem or surrounding
area.
● If the radar sensor, front grille, or front bumper needs to be removed and
installed, or replaced, contact any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
Radar sensor
Front grille emblem
If the front of the radar sensor or the
front or back of the front grille emblem
is dirty or covered with water droplets,
snow, etc., clean it.
Clean the radar sensor and front grille
emblem with a soft cloth so you do not
mark or damage them.
1
2
Page 363 of 744

3635-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
WARNING
■To avoid malfunction of the camera sensor
Observe the following precautions.
Otherwise, the camera sensor may not operate properly, possibly leading to
an accident resulting in death or serious injury.
● Keep the windshield clean at all times.
• If the windshield is dirty or cover ed with an oily film, water droplets,
snow, etc., clear the windshield.
• If a glass coating agent is applied to t he windshield, it will still be neces-
sary to use the windshield wipers to remove water droplets, etc. from
the area of the windshield in front of the camera sensor.
• If the inner side of the windshield where the camera sensor is installed
is dirty, contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
● If the part of the windshield in front of the camera sensor is fogged up or
covered with condensation or ice, use the windshield defogger to remove
the fog, condensation or ice. ( P. 509)
● If water droplets cannot be properly removed from the area of the wind-
shield in front of the camera sensor by the windshield wipers, replace the
wiper insert or wiper blade.
• To replace the wiper insert: P. 613
• If the wiper blades need to be replaced, contact any authorized Toyota
dealer or repairer, or another dul y qualified and equipped professional.
● Do not attach window tinting to the windshield.
● Replace the windshield if it is damaged or cracked.
If the windshield needs to be replaced, contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional.
● Do not get the camera sensor wet.
● Do not allow bright lights to shine into the camera sensor.
●Do not install an antenna or attach stick-
ers (including transparent stickers) or
other items to the area of the windshield
in front of the camera sensor (shaded
area in the illustration).
Page 364 of 744

3645-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
WARNING
●Do not dirty or damage the camera sensor.
When cleaning the inside of the windshi eld, do not allow glass cleaner to
contact the lens. Also, do not touch the lens.
If the lens is dirty or damaged, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
● Do not subject the camera sensor to a strong impact.
● Do not change the installation position or direction of the camera sensor or
remove it.
● Do not disassemble the camera sensor.
● Do not install an electronic device or device that emits strong electric
waves near the camera sensor.
● Do not modify any components of the vehicle around the camera sensor
(inside rear view mirror, etc.) or ceiling.
● Do not attach any accessories that may obstruct the camera sensor to the
hood, front grille or front bumper. Contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional for details.
● If a surfboard or other long object is to be mounted on the roof, make sure
that it will not obstruct the camera sensor.
● Do not modify the headlights or other lights.
Page 368 of 744

3685-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
PCS (Pre-Crash Safety system)
◆Pre-crash warning
When the system determines
that the possibility of a frontal
collision is high, a buzzer will
sound and a warning message
will be displayed on the multi-
information display to urge the
driver to take evasive action.
The pre-crash safety system uses a radar sensor and camera
sensor to detect vehicles and pedestrians
*1 in front of your vehi-
cle. When the system determines that the possibility of a frontal
collision with a vehicle or pedestrian is high, a warning operates
to urge the driver to take evasive action and the potential brake
pressure is increased to help the driver avoid the collision. If the
system determines that the possibility of a frontal collision with
a vehicle or pedestrian is extremely high, the brakes are auto-
matically applied
*2 to help avoid the collision or help reduce the
impact of the collision.
The pre-crash safety system can be disabled/enabled and the warn-
ing timing can be changed. (P. 372)
*1: Depending on the region in which the vehicle was sold, the pedestrian
detection function may not be available. Contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional for
details.
*2: Depending on the region in which the vehicle was sold, the pre-crash
braking function (automatic braking function) may not be available. Con-
tact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional for details.
Page 371 of 744

3715-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
WARNING
■When to disable the pre-crash safety system
In the following situations, disable the system, as it may not operate prop-
erly, possibly leading to an accident resulting in death or serious injury:
● When the vehicle is being towed
● When your vehicle is towing another vehicle
● When transporting the vehicle via truck, boat, train or similar means of
transportation
● When the vehicle is raised on a lift with the hybrid system operating and
the tires are allowed to rotate freely
● When inspecting the vehicle using a drum tester such as a chassis dyna-
mometer or speedometer tester, or when using an on vehicle wheel bal-
ancer
● When a strong impact is applied to the front bumper or front grille, due to
an accident or other reasons
● If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle has been in an accident or is malfunctioning
● When the vehicle is driven in a sporty manner or off-road
● When the tires are not properly inflated
● When the tires are very worn
● When tires of a size other than specified are installed
● When tire chains are installed
● When a compact spare tire or an emergency tire puncture repair kit is used
● If equipment (snow plow, etc.) that may obstruct the radar sensor or cam-
era sensor is temporarily installed to the vehicle