2019 TOYOTA PRIUS PLUS Owners Manual

3054-5. Using the driving support systems
4
Driving
PRIUS +_OM_OM47D30E_(EE)
To change the set speed, operate the lever until the desired set speed
is displayed.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily
move the lever in the desired direc-
tion.
Large adjustment: Hold the lever
up or down to change the speed,
and release when the desired
speed is reached.
In the vehicle-to-vehicle distance control mode, the set speed will be
increased or decreased as follows:
For Europe
Fine adjustment: By 5 km/h (3.1 mph)
*1 or 5 mph (8 km/h)*2 each time
the lever is operated
Large adjustment: Increases or decreases in 5 km/h (3.1 mph)
*1 or
5 mph (8 km/h)
*2 increments for as long as the lever is held
Except for Europe
Fine adjustment: By 1 km/h (0.6 mph)
*1 or 1 mph (1.6 km/h)*2 each
time the lever is operated
Large adjustment: Increases or decreases in 5 km/h (3.1 mph)
*1 or
5 mph (8 km/h)
*2 increments for as long as the lever is held
In the constant speed control mode (P. 308), the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)
*1 or 1 mph (1.6 km/h)*2 each
time the lever is operated
Large adjustment: The speed will continue to change while the lever is
held.
*1: When the set speed is shown in “km/h”
*2: When the set speed is shown in “MPH”
Adjusting the set speed
1
2

3064-5. Using the driving support systems
PRIUS +_OM_OM47D30E_(EE)
Pressing the switch changes the
vehicle-to-vehicle distance as fol-
lows:
Long
Medium
Short
The vehicle-to-vehicle distance is
set automatically to long mode
when the power switch is turned to
ON mode.
If a vehicle is running ahead of
you, the preceding vehicle mark
will also be displayed.
Select a distance from the table below. Note that the distances shown
correspond to a vehicle speed of 80 km/h (50 mph). Vehicle-to-vehicle
distance increases/decreases in accordance with vehicle speed.
Changing the vehicle-to-vehicle distance (vehicle-to-vehicle dis-
tance control mode)
Preceding vehicle mark
1
2
3
Vehicle-to-vehicle distance settings (vehicle-to-vehicle distance
control mode)
Distance optionsVehicle-to-vehicle distance
LongApproximately 50 m (160 ft.)
MediumApproximately 40 m (130 ft.)
ShortApproximately 30 m (100 ft.)

3074-5. Using the driving support systems
4
Driving
PRIUS +_OM_OM47D30E_(EE)
Pulling the lever toward you
cancels the speed control.
The speed control is also canceled
when the brake pedal is
depressed.
Pushing the lever up resumes
the cruise control and returns
vehicle speed to the set speed.
However, cruise control does not resume when the vehicle speed is
approximately 40 km/h (25 mph) or less.
When your vehicle is too close to
a vehicle ahead, and sufficient
automatic deceleration via the
cruise control is not possible, the
display will flash and the buzzer
will sound to alert the driver. An
example of this would be if
another driver cuts in front of you
while you are following a vehicle.
Depress the brake pedal to
ensure an appropriate vehicle-to-
vehicle distance.
■Warnings may not occur when
In the following instances, warnings may not occur even when the
vehicle-to-vehicle distance is small.
●When the speed of the preceding vehicle matches or exceeds
your vehicle speed
●When the preceding vehicle is traveling at an extremely slow
speed
●Immediately after the cruise control speed was set
●When depressing the accelerator pedal
Canceling and resuming the speed control
1
2
Approach warning (vehicle-to-vehicle distance control mode)

3084-5. Using the driving support systems
PRIUS +_OM_OM47D30E_(EE)
When constant speed control mode is selected, your vehicle will main-
tain a set speed without controlling the vehicle-to-vehicle distance.
Select this mode only when vehicle-to-vehicle distance control mode
does not function correctly due to a dirty radar sensor, etc.
With the cruise control off,
press and hold the “ON-OFF”
button for 1.5 seconds or more.
Immediately after the “ON-OFF”
button is pressed, the dynamic
radar cruise control indicator will
come on. Afterwards, it switches to
the cruise control indicator.
Switching to constant speed con-
trol mode is only possible when
operating the lever with the cruise
control off.
Accelerate or decelerate, with
accelerator pedal operation, to
the desired vehicle speed (at or
above approximately 40 km/h
[25 mph]) and push the lever
down to set the speed.
Cruise control “SET” indicator will
come on.
The vehicle speed at the moment
the lever is released becomes the
set speed.
Adjusting the speed setting: P. 305
Canceling and resuming the speed setting: P. 307
Selecting constant speed control mode
1
2

3094-5. Using the driving support systems
4
Driving
PRIUS +_OM_OM47D30E_(EE)
■Dynamic radar cruise control can be set when
●The shift position is in D.
●Vehicle speed is at or above 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 at or below approximately 40 km/h (25 mph).
●VSC is activated.
●TRC is activated for a period of time.
●The sensor cannot detect correctly because it is covered in some way.
●Pre-crash braking is activated.
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 retailer or Toyota authorized repairer, or any reliable repairer.

3104-5. Using the driving support systems
PRIUS +_OM_OM47D30E_(EE)■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.
●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 retailer or Toyota authorized repairer, or any reliable repairer.
■Brake system operation sound
If the brakes are applied automatically while the vehicle is in vehicle-to-vehi-
cle distance control mode, a brake system operation sound may be heard.
This does not indicate a malfunction.
■Warning messages and buzzers for dynamic radar cruise control
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.
■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. 307) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane

3114-5. Using the driving support systems
4
Driving
PRIUS +_OM_OM47D30E_(EE)●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

3124-5. Using the driving support systems
PRIUS +_OM_OM47D30E_(EE)■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 vehicle ahead of you decelerates suddenly
●When driving on a road surrounded by a structure, such as in a tunnel or on
a bridge
●While the vehicle speed is decreasing to the set speed after the vehicle
accelerates by depressing the accelerator pedal ●When the road curves or when the lanes
are narrow
●When steering wheel operation or your
position in the lane is unstable