TOYOTA PRIUS PLUG-IN HYBRID 2016 Owners Manual

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

3725-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)■
Enabling/disabling the pre-crash safety system
The pre-crash safety system can be enabled/disabled on the
screen (P. 242) of the multi-information display.
The system is automatically enabled each time the power switch is
turned to ON mode.
If the system is disabled, the
PCS warning light will turn on.
■Changing the pre-crash warning timing
The pre-crash warning timing can be changed on the screen
(P. 242) of the multi-information display.
The operation timing setting is retained when the power switch is turned
off.
Far
The warning will begin to oper-
ate earlier than with the default
timing.
Middle
This is the default setting.
Near
The warning will begin to oper-
ate later than with the default
timing.
Changing settings of the pre-crash safety system
1
2
3

3735-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
■Operational conditions
Availability of the pedestrian detection function and pre-crash braking func-
tion depend on the region in which the vehicle was sold.
Read the following for details:
Region A
(The pedestrian detection function and pre-crash braking function are avail-
able)
The pre-crash safety system is enabled and the system determines that the
possibility of a frontal collision with a vehicle or pedestrian is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 10 and 180 km/h (7 and
110 mph). (For detecting a pedestrian, vehicle speed is between approxi-
mately 10 and 80 km/h [7 and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian
ahead is approximately 10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and
110 mph). (For detecting a pedestrian, vehicle speed is between approxi-
mately 30 and 80 km/h [19 and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian
ahead is approximately 30 km/h (19 mph) or more.
●Pre-crash braking:
• Vehicle speed is between approximately 10 and 180 km/h (7 and
110 mph). (For detecting a pedestrian, vehicle speed is between approxi-
mately 10 and 80 km/h [7 and 50 mph].)
• The relative speed between your vehicle and the vehicle or pedestrian
ahead is approximately 10 km/h (7 mph) or more.
RegionsFunction availability
Region AThe pedestrian detection function and pre-crash
braking function are available
Region BThe pedestrian detection function is not available
and the pre-crash braking function is available
Region CThe pedestrian detection function and pre-crash
braking function are not available

3745-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)The system may not operate in the following situations:
●If a 12-volt battery terminal has been disconnected and reconnected and
then the vehicle has not been driven for a certain amount of time
●If the shift position is in R
●If VSC is disabled (only the pre-crash warning function will be operational)
●If the PCS warning light is flashing or illuminated
Region B
(The pedestrian detection function is not available and the pre-crash brak-
ing function is available)
The pre-crash safety system is enabled and the system determines that the
possibility of a frontal collision with a vehicle is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 15 and 180 km/h (10 and
110 mph).
• The relative speed between your vehicle and the vehicle ahead is
approximately 10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and
110 mph).
• The relative speed between your vehicle and the vehicle ahead is
approximately 30 km/h (19 mph) or more.
●Pre-crash braking:
• Vehicle speed is between approximately 15 and 180 km/h (10 and
110 mph).
• The relative speed between your vehicle and the vehicle ahead is
approximately 10 km/h (7 mph) or more.
The system may not operate in the following situations:
●If a 12-volt battery terminal has been disconnected and reconnected and
then the vehicle has not been driven for a certain amount of time
●If the shift position is in R
●If VSC is disabled (only the pre-crash warning function will be operational)
●If the PCS warning light is flashing or illuminated

3755-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
Region C
(The pedestrian detection function and pre-crash braking function are not
available)
The pre-crash safety system is enabled and the system determines that the
possibility of a frontal collision with a vehicle is high.
Each function is operational at the following speeds:
●Pre-crash warning:
• Vehicle speed is between approximately 15 and 180 km/h (10 and 110
mph).
• The relative speed between your vehicle and the vehicle ahead is
approximately 10 km/h (7 mph) or more.
●Pre-crash brake assist:
• Vehicle speed is between approximately 30 and 180 km/h (19 and 110
mph).
• The relative speed between your vehicle and the vehicle ahead is
approximately 30 km/h (19 mph) or more.
The system may not operate in the following situations:
●If a 12-volt battery terminal has been disconnected and reconnected and
then the vehicle has not been driven for a certain amount of time
●If the shift lever is in R
●If VSC is disabled (only the pre-crash warning function will be operational)
●If the PCS warning light is flashing or illuminated
■Pedestrian detection function
*4
*4: Depending on the region in which the vehicle was sold, the pedestrian
detection function may not be available.
■Cancelation of the pre-crash braking
*3
If either of the following occur while the pre-crash braking function is operat-
ing, it will be canceled:
●The accelerator pedal is depressed strongly.
●The steering wheel is turned sharply or abruptly.
*3: Depending on the region in which the vehicle was sold, the pre-crash brak-
ing function may not be available. The pre-crash safety system detects
pedestrians based on the size, profile,
and motion of a detected object. However,
a pedestrian may not be detected
depending on the surrounding brightness
and the motion, posture, and angle of the
detected object, preventing the system
from operating properly. (P. 380)

3765-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)■Conditions under which the system may operate even if there is no pos-
sibility of a collision
●In some situations such as the following, the system may determine that
there is a possibility of a frontal collision and operate.
• When passing a vehicle or pedestrian
*4
• When changing lanes while overtaking a preceding vehicle
• When overtaking a preceding vehicle that is changing lanes
• When rapidly closing on a vehicle ahead
• If the front of the vehicle is raised or lowered, such as when the road sur-
face is uneven or undulating
• When approaching objects on the roadside, such as guardrails, utility
poles, trees, or walls • When overtaking a preceding vehicle
that is making a left/right turn
• When passing a vehicle in an oncom-
ing lane that is stopped to make a
right/left turn
• When driving on a road where relative
location to vehicle ahead in an adja-
cent lane may change, such as on a
winding road
• When there is a vehicle, pedes-
trian
*4, or object by the roadside at
the entrance of a curve

3775-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
• When driving on a narrow path surrounded by a structure, such as in a
tunnel or on an iron bridge
• When there is a metal object (manhole cover, steel plate, etc.), steps, or a
protrusion on the road surface or roadside
• When rapidly closing on an electric toll gate barrier, parking area barrier,
or other barrier that opens and closes
• When using an automatic car wash • When a crossing pedestrian
approaches very close to the vehi-
cle
*4
• When passing through a place with a
low structure above the road (low ceil-
ing, traffic sign, etc.)
• When passing under an object (bill-
board, etc.) at the top of an uphill road
• When driving through or under
objects that may contact the vehicle,
such as thick grass, tree branches, or
a banner

3785-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)• When the vehicle is hit by water, snow, dust, etc. from a vehicle ahead
• When driving through steam or smoke
• When there are patterns or paint on the road or a wall that may be mis-
taken for a vehicle or pedestrian
*4
• When driving near an object that reflects radio waves, such as a large
truck or guardrail
• When driving near a TV tower, broadcasting station, electric power plant,
or other location where strong radio waves or electrical noise may be
present
*4: Depending on the region in which the vehicle was sold, the pedestrian
detection function may not be available.
■Situations in which the system may not operate properly
●In some situations such as the following, a vehicle may not be detected by
the radar sensor and camera sensor, preventing the system from operating
properly:
• If an oncoming vehicle is approaching your vehicle
• If a vehicle ahead is a motorcycle or bicycle
• When approaching the side or front of a vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shaped, such as a tractor or side car
• If the sun or other light is shining directly on a vehicle ahead
• If a vehicle cuts in front of your vehicle or emerges from beside a vehicle • If a preceding vehicle has a low rear
end, such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance

3795-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
• If a vehicle ahead makes an abrupt maneuver (such as sudden swerving,
acceleration or deceleration)
• When suddenly cutting behind a preceding vehicle
• When driving in inclement weather such as heavy rain, fog, snow or a
sandstorm
• When the vehicle is hit by water, snow, dust, etc. from a vehicle ahead
• When driving through steam or smoke
• When driving in a place where the surrounding brightness changes sud-
denly, such as at the entrance or exit of a tunnel
• When a very bright light, such as the sun or the headlights of oncoming
traffic, shines directly into the camera sensor
• When the surrounding area is dim, such as at dawn or dusk, or while at
night or in a tunnel
• After the hybrid system has started the vehicle has not been driven for a
certain amount of time
• While making a left/right turn and for a few seconds after making a left/
right turn
• While driving on a curve and for a few seconds after driving on a curve
• If your vehicle is skidding
• If the wheels are misaligned
• If a wiper blade is blocking the camera sensor
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on a hill
• If the radar sensor or camera sensor is misaligned • When a vehicle ahead is not directly
in front of your vehicle
• If the front of the vehicle is raised or
lowered

3805-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)●In some situations such as the following, sufficient braking force may not be
obtained, preventing the system from performing properly:
• If the braking functions cannot operate to their full extent, such as when
the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively
worn, improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery sur-
face
●Some pedestrians such as the following may not be detected by the radar
sensor and camera sensor, preventing the system from operating prop-
erly
*4:
• Pedestrians shorter than approximately 1 m (3.2 ft.) or taller than approx-
imately 2 m (6.5 ft.)
• Pedestrians wearing oversized clothing (a rain coat, long skirt, etc.), mak-
ing their silhouette obscure
• Pedestrians who are carrying large baggage, holding an umbrella, etc.,
hiding part of their body
• Pedestrians who are bending forward or squatting
• Pedestrians who are pushing a stroller, wheelchair, bicycle or other vehi-
cle
• Groups of pedestrians which are close together
• Pedestrians who are wearing white and look extremely bright
• Pedestrians in the dark, such as at night or while in a tunnel
• Pedestrians whose clothing appears to be nearly the same color or
brightness as their surroundings
• Pedestrians near walls, fences, guardrails, or large objects
• Pedestrians who are on a metal object (manhole cover, steel plate, etc.)
on the road
• Pedestrians who are walking fast
• Pedestrians who are changing speed abruptly
• Pedestrians running out from behind a vehicle or a large object
• Pedestrians who are extremely close to the side of the vehicle (outside
rear view mirror, etc.)
*4: Depending on the region in which the vehicle was sold, the pedestrian
detection function may not be available.