2022 TOYOTA PRIUS PLUG-IN HYBRID sensor

4415-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QConditions under which the system may not function correctly
OThe Blind Spot Monitor function may not detect vehicles correctly in the fol-
lowing situations:
• 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 a bicycle carrier or other accessory 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 function is turned on

4425-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)OInstances of the Blind Spot Monitor function unnecessarily detecting a vehi-
cle 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 a bicycle carrier or other accessory is installed to the rear of the
vehicle

4435-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
The Rear Crossing Traffic Alert functions when your vehicle is in
reverse. It can detect other vehicles approaching from the righ t or left
rear of the vehicle. It uses radar sensors to alert the driver of the other
vehicle’s existence through flashing the outside rear view mirr or indi-
cators and sounding a buzzer.
The Rear Crossing Traffic Alert function
IO55PH087
Approaching vehicles Detection areas
WARNING
Q Cautions regarding the use of the system
There is a limit to the degree of recognition accuracy and cont rol perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicl e’s surround-
ings and driving safely. ( P. 440)
Q To ensure the system can operate properly
 P. 438
12

4465-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Q Conditions under which the system will not detect a vehicle
The Rear Crossing Traffic Alert function is not designed to det ect the follow-
ing types of vehicles and/or objects:
O Vehicles approaching from directly behind
O Vehicles backing up in a parking space next to your vehicle
O Guardrails, walls, signs, parked vehicles and similar stationary objects*
OSmall motorcycles, bicycles, pedestrians, etc.*
OVehicles moving away from your vehicle
O Vehicles approaching from the parking spaces next to your vehicle*
OThe distance between the sensor and approaching vehicle gets too close
*: Depending on the conditions, detection of a vehicle and/or object may
occur.
O Vehicles that the sensors cannot detect
due to obstructions
IO55PH089

4475-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QSituations in which the system may not operate properly
The Rear Crossing Traffic Alert function may not detect vehicle s correctly in
the following situations:
O When the sensor is misaligned due to a strong impact to the sensor or its
surrounding area
O When mud, snow, ice, a sticker, etc. is covering the sensor or surrounding
area on the position above the rear bumper
O When driving on a road surface that is wet with standing water during bad
weather, such as heavy rain, snow, or fog
O When multiple vehicles are approaching with only a small gap between
each vehicle
O When a vehicle is approaching at high speed
O When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle carrier, or
snow plow
O When towing a trailer
O When there is a significant difference in height between your vehicle and the
vehicle that enters the detection area
O When a sensor or the area around a sensor is extremely hot or cold
O If the suspension has been modified or tires of a size other than specified
are installed
O When backing up on a slope with a
sharp change in grade
O When backing out of a sharp angle park-
ing spot

4485-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
O If the front of the vehicle is raised or lowered due to the carried load
Q Situations in which the system may operate even if there is no possibil-
ity of a collision
Instances of the Rear Crossing Traffic Alert function unnecessa rily detecting
a vehicle and/or object may increase in the following situation s:
O When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle carrier, or
snow plow
O When turning while backing up
O When a vehicle turns into the detection
area
O When the parking space faces a street
and vehicles are being driven on the
street
O When the distance between your vehicle
and metal objects, such as a guardrail,
wall, sign, or parked vehicle, which may
reflect electrical waves toward the rear
of the vehicle, is short

4495-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
OWhen there are spinning objects near your vehicle such as the fan of an air
conditioning unit
O When water is splashed or sprayed toward the rear bumper, such as from a
sprinkler
O Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain
water on the road surface, etc.)
O When the distance between your vehicle and a guardrail, wall, etc., that
enters the detection area is short
O Gratings and gutters
O When a sensor or the area around a sensor is extremely hot or cold
O If the suspension has been modified or tires of a size other than specified
are installed
O If the front of the vehicle is raised or lowered due to the carried load
O When a vehicle passes by the side of
your vehicle
O When a detected vehicle turns while
approaching the vehicle

4505-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Toyota parking assist-sensor
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Front side sensors
Rear side sensors
The Toyota parking assist-sensor
can be enabled/disabled on the
screen ( P. 247) of the
multi-information display.
When on is selected, Toyota park-
ing assist-sensor indicator will
come on.
Once off is selected, the Toyota parking assist-sensor will not return to on
until it is turned to on by the screen of multi-information di splay again.
(The system does not automatically return to on even when the h ybrid sys-
tem is restarted.)
: 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 displays and a buzzer.
Always check the surrounding area when using this system.
Types of sensors
1
2
3
4
5
6
Turning the Toyota parking assist-sensor on/off