Toyota Prius Plug-in Hybrid (2017 year). Manual - part 25
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5-5. Using the driving support systems
■ Dynamic radar cruise control with full-speed range can be set when
● The shift position is in D.
● Vehicle speed is above approximately 50 km/h (30 mph).
However, when a preceding vehicle is detected, the dynamic radar cruise
control with full-speed range can be set even if the vehicle speed is at or
below approximately 50 km/h (30 mph).
■ Accelerating after setting the vehicle speed
The vehicle can accelerate by operating the accelerator pedal. After acceler-
ating, the set speed resumes. However, during vehicle-to-vehicle distance
control mode, the vehicle speed may decrease below the set speed in order
to maintain the distance to the preceding vehicle.
■ Automatic cancelation of vehicle-to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the fol-
lowing situations.
● Actual vehicle speed falls below approximately 40 km/h (25 mph) when
there are no vehicles ahead.
● The preceding vehicle leaves the lane when your vehicle is following at a
vehicle speed below approximately 40 km/h (25 mph). Otherwise, the sen-
sor can not properly detect the vehicle.
●VSC is activated.
● TRC is activated for a period of time.
● When the VSC or TRC system is turned off by pressing the VSC OFF
switch.
● The sensor cannot detect correctly because it is covered in some way.
● Pre-crash braking is activated.
● Intelligent Clearance Sonar is operated. (if equipped)
● The parking brake is operated.
●The vehicle is stopped by system control on a steep incline.
● The following are detected when the vehicle has been stopped by system
control:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes.
In this situation, the shift position may automatically switch to P. (P. 336)
If vehicle-to-vehicle distance control mode is automatically canceled for any
other reason, there may be a malfunction in the system. Contact any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
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■ Automatic cancelation of constant speed control mode
Constant speed control mode is automatically canceled in the following situa-
tions:
●Actual vehicle speed is more than approximately 16 km/h (10 mph) below
the set vehicle speed.
●Actual vehicle speed falls below approximately 40 km/h (25 mph).
●VSC is activated.
● TRC is activated for a period of time.
● When the VSC or TRC system is turned off by pressing the VSC OFF
switch.
● Pre-crash braking is activated.
If constant speed control mode is automatically canceled for any other rea-
son, there may be a malfunction in the system. Contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional.
■ Warning messages and buzzers for dynamic radar cruise control with
full-speed range
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. If a warning message
is shown on the multi-information display, read the message and follow the
instructions.
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■ When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the
brake pedal when deceleration of the system is insufficient or operate the
accelerator pedal when acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (P. 406) will not be activated.
● Vehicles that cut in suddenly
● Vehicles traveling at low speeds
● Vehicles that are not moving in the same lane
● Vehicles with small rear ends (trailers with no load on board, etc.)
● Motorcycles traveling in the same lane
● When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
● When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
● Preceding vehicle has an extremely high
ground clearance
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■ Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.
● When the road curves or when the lanes
are narrow
● When steering wheel operation or your
position in the lane is unstable
5
● When the vehicle ahead of you decelerates suddenly
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Driving mode select switch
In response to driving conditions, one of 3 driving modes can be
selected.
Driving modes
Repeatedly press the switch until the system changes to the intended
driving mode.
Each time the switch is pressed, the driving mode changes in the following
order and the “ECO MODE” and “PWR MODE” indicators turn on or off
accordingly.
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1
Normal mode
Suitable for normal driving.
When normal mode is selected, the “ECO MODE” and “PWR MODE”
indicators turn off.
2
Power mode
Suitable for when crisp handling and enhanced accelerator
response are desired, such as when driving on mountainous roads.
When power mode is selected, the “PWR MODE” indicator will illumi-
nate on the main display.
3
Eco drive mode
Suitable for driving that improves fuel economy by generating
torque in response to accelerator pedal operations more smoothly
than in normal mode.
When Eco drive mode is selected, the “ECO MODE” indicator will illumi-
nate on the main display.
While the air conditioning is being used, the fan speed setting mode will
be changed to “ECO” mode automatically (P. 508), allowing for driving
that leads to even better fuel economy.
5
■ Automatic deactivation of power mode
Power mode will be canceled and changed to normal mode automatically
when the power switch is turned off.
However, normal mode and eco drive mode will not be canceled automati-
cally until the switch is pressed, even if the power switch is turned off.
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Speed limiter
A desired maximum speed can be set using the cruise control
switch.
The speed limiter prevents vehicle speed from exceeding the set
speed.
Setting the vehicle speed
Press the switch to activate the
speed limiter.
Press the switch once more to
deactivate the speed limiter.
Accelerate or decelerate to the
desired speed and push the lever
down to set the desired maximum
speed.
If the lever is pushed down while
the vehicle is stopped or being
driven of 30 km/h (19 mph) or less,
the set speed will be
30 km/h
(19 mph).
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Adjusting the speed setting
1
Increase speed
2
Decrease speed
Hold the lever until the desired
speed setting is obtained.
Fine adjustment of the set speed
can be made by lightly pushing the
lever up or down and releasing it.
Canceling and resuming the speed limiter
1
Cancel
Pull the lever towards you to can-
cel the speed limiter.
2
Resume
To resume use of the speed limiter,
push the lever up.
5
■ Exceeding the set speed
In the following situations, the vehicle speed exceeds the set speed, and
main display will be highlighted:
● When fully depressing the accelerator
pedal
● When driving down a hill (a buzzer also
sounds)
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■ Automatic speed limiter cancellation
The set speed is automatically canceled in any of the situations:
●Cruise control is activated.
● When the VSC system and/or TRC system is turned off by pressing the
VSC OFF switch.
■ If the “Check Speed Limiter System” is displayed on the multi-informa-
tion display
Stop in a safe location, turn the power switch off and back on again, and then
set the speed limiter. If the speed limiter cannot be set, the system may be
malfunctioning. Even though the vehicle can be driven normally, have the
vehicle inspected by any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
WARNING
■ To avoid operating the speed limiter by mistake
Keep the speed limiter switch off when not in use.
■ Situations unsuitable for speed limiter
Do not use the speed limiter in either of the following situations.
Doing so may result in control of the vehicle being lost and could cause a
serious or fatal accident.
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
NOTICE
When a warning is issued using the meter display and buzzer after exceed-
ing the set speed limit on a steep decline, depress the brake pedal to decel-
erate.
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BSM (Blind Spot Monitor)
Summary of the Blind Spot Monitor
The Blind Spot Monitor is a system that has 2 functions;
● The Blind Spot Monitor function
Assists the driver in making the decision when changing lanes
● The Rear Crossing Traffic Alert function
Assists the driver when backing up
These functions use same sensors.
5
Outside rear view mirror indicators
1
Blind Spot Monitor function:
When a vehicle is detected in the blind spot, the outside rear view mirror
indicator comes on while the turn signal lever is not operated. If the turn
signal lever is operated toward the detected side, the outside rear view
mirror indicator flashes.
Rear Crossing Traffic Alert function:
When a vehicle approaching from the right or left rear of the vehicle is
detected, the outside rear view mirror indicators flash.
: If equipped
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2
The Blind Spot Monitor on/off screen and indicator
The Blind Spot Monitor function and Rear Crossing Traffic Alert function
can be switched on and off using the multi-information display. (P. 242)
When switched on, the BSM indicator illuminates on the meter and the
buzzer sounds.
3
Rear Crossing Traffic Alert buzzer (Rear Crossing Traffic Alert func-
tion only)
When a vehicle approaching from the right or left rear of the vehicle is
detected, a buzzer sounds from the driver’s side instrument panel.
RCTA detection display (RCTA function only)
4
If a vehicle approaching from the right or left at the rear of the vehicle is
detected, the RCTA detection display will be displayed on the multi-infor-
mation display.
Changing settings of the Blind Spot Monitor function and Rear
Crossing Traffic Alert function
The Blind Spot Monitor function and Rear Crossing Traffic Alert func-
tion can be enabled/disabled on the
screen (P. 242) of the
multi-information display.
Once off is selected, the Blind Spot Monitor and Rear Crossing Traffic Alert
function will not return to on until it is turned to on by the settings display of
multi-information display again. (The system does not automatically return
to on even when the hybrid system is restarted.)
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■ The BSM outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be dif-
ficult to see.
■ Rear Crossing Traffic Alert buzzer hearing
Rear Crossing Traffic Alert function may be difficult to hear over loud noises
such as high audio volume.
■ When “Blind Spot Monitor Unavailable” is shown on the multi-informa-
tion display
The sensor voltage has become abnormal, water, snow mud, etc., may be
built up in the vicinity of the sensor area of bumper (P. 422). 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
extremely hot or cold weather.
■When “Blind Spot Monitor System Malfunction Visit Your Dealer” is
shown on the multi-information display
There may be a sensor malfunction or misaligned. Have the vehicle
inspected by any authorized Toyota dealer or repairer, or another duly quali-
fied and equipped professional.
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■ Certification for the Blind Spot Monitor
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WARNING
■ Handling the radar sensor
One Blind Spot Monitor sensor is
installed inside the left and right side of
the vehicle rear bumper respectively.
Observe the following to ensure the Blind
Spot Monitor can function correctly.
● Keep the sensor and its surrounding area on the bumper clean at all times.
●Do not subject a sensor or its surrounding area on the rear bumper to a
strong impact.
If a sensor is moved even slightly off position, the system may malfunction
and vehicles may not be detected correctly.
In the following situations, have your vehicle inspected by any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sensor is scratched or dented, or part of
them has become disconnected.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor or surrounding area on
the bumper.
●Do not modify the sensor or surrounding area on the bumper.
●Do not paint the rear bumper any color other than an official Toyota color.
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The Blind Spot Monitor function
The Blind Spot Monitor function uses radar sensors to detect vehicles
that are traveling in an adjacent lane in the area that is not reflected in
the outside rear view mirror (the blind spot), and advises the driver of
the vehicle’s existence via the outside rear view mirror indicator.
The Blind Spot Monitor function detection areas
The areas that vehicles can be detected in are outlined below.
The range of the detection area
extends to:
Approximately 3.5 m (11.5 ft.)
1
from the side of the vehicle
The first 0.5 m (1.6 ft.) from the
side of the vehicle is not in the
detection area
2
Approximately 3 m (9.8 ft.) from
the rear bumper
5
Approximately 1 m (3.3 ft.) for-
3
ward of the rear bumper
IO55PH029
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WARNING
■ Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The Blind Spot Monitor function is a supplementary function which alerts the
driver that a vehicle is present in the blind spot. Do not overly rely on the
Blind Spot Monitor function. The function cannot judge if it is safe to change
lanes, therefore over reliance could cause an accident resulting in death or
serious injury.
According to conditions, the system may not function correctly. Therefore
the driver’s own visual confirmation of safety is necessary.
■ The Blind Spot Monitor function is operational when
●The BSM system is set to on (P. 242)
● Vehicle speed is greater than approximately 16 km/h (10 mph)
■ The Blind Spot Monitor function will detect a vehicle when
● A vehicle in an adjacent lane overtakes your vehicle.
● Another vehicle enters the detection area when it changes lanes.
■ Conditions under which the Blind Spot Monitor function will not detect a
vehicle
The Blind Spot Monitor function is not designed to detect the following types
of vehicles and/or objects:
●Small motorcycles, bicycles, pedestrians etc.*
● Vehicles traveling in the opposite direction
● Guardrails, walls, signs, parked vehicles and similar stationary objects*
●Following vehicles that are in the same lane*
● Vehicles driving 2 lanes across from your vehicle*
*: Depending on conditions, detection of a vehicle and/or object may occur.
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