Toyota Prius Prime (2021 year). Manual in english — part 7

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●

Vehicle sway warning function
This function operates when all of the following conditions are met.

• Setting for

(“Lane Sway Warning Status”) in

of the multi-

information display is set to “On”. (



P. 220)

• Vehicle speed is approximately 32 mph (50 km/h) or more.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. (



P. 409)

●

Lane centering function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Setting for

(“LTA Steering Assist Mode”) and

(“Center

Trace”) in

of the multi-information display are set to “On”. (



P. 220)

• This function recognizes white (yellow) lane lines or the position of a pre-

ceding vehicle (except when the preceding vehicle is small, such as a
motorcycle).

• The dynamic radar cruise control with full-speed range is operating in

vehicle-to-vehicle distance control mode.

• Width of traffic lane is approximately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. (



P. 409)

• Vehicle does not accelerate or decelerate by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for

changing lanes.

• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. (



P. 408)

• The vehicle is being driven in the center of a lane.
• Steering assist function is not operating.

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■

Temporary cancelation of functions

●

When operation conditions are no longer met, a function may be temporarily
canceled. However, when the operation conditions are met again, operation
of the function is automatically restored. (



P. 405)

●

If the operation conditions (



P. 406) are no longer met while the lane cen-

tering function is operating, the buzzer may sound to indicate that the func-
tion has been temporarily canceled.

■

Steering assist function/lane centering function

●

Depending on the vehicle speed, lane departure situation, road conditions,
etc., the driver may not feel the function is operating or the function may not
operate at all.

●

The steering control of the function is overridden by the driver’s steering
wheel operation.

●

Do not attempt to test the operation of the steering assist function.

■

Lane departure alert function

●

The warning buzzer may be difficult to hear due to external noise, audio
playback, etc.

●

If the edge of the course

*

is not clear or straight, the lane departure alert

function may not operate.

●

Do not attempt to test the operation of the lane departure alert function.

*

: Boundary between asphalt and the side of the road, such as grass, soil, or

a curb

408

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■

Hands off steering wheel warning

●

When the system determines that the driver is driving without holding the
steering wheel while the system is operating
If the driver continues to keep their hands off of the steering wheel, the
buzzer sounds, the driver is warned and the function is temporarily can-
celed. This warning also operates in the same way when the driver continu-
ously operates the steering wheel only a small amount.

●

When the system determines that the vehicle may deviate from the lane
while driving around a curve while the lane centering function is operating
Depending on the vehicle condition and road conditions, the warning may
not operate. Also, if the system determines that the vehicle is driving
around a curve, warnings will occur earlier than during straight-lane driving.

●

When the system determines that the driver is driving without holding the
steering wheel while the steering wheel assist of the steering assist function
is operating.
If the driver continues to keep their hands off of the steering wheel and the
steering wheel assist is operating, the buzzer sounds and the driver is
warned. Each time the buzzer sounds, the continuing time of the buzzer
becomes longer.

■

Vehicle sway warning function

In the following situations, a warning mes-
sage urging the driver to hold the steering
wheel and the symbol shown in the illus-
tration are displayed on the multi-informa-
tion display to warn the driver. The
warning stops when the system deter-
mines that the driver holds the steering
wheel. Always keep your hands on the
steering wheel when using this system,
regardless of warnings.

When the system determines that the
vehicle is swaying while the vehicle sway
warning function is operating, a buzzer
sounds and a warning message urging
the driver to rest and the symbol shown in
the illustration are simultaneously dis-
played on the multi-information display.
Depending on the vehicle and road condi-
tions, the warning may not operate.

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■

Warning message

If the following warning message is displayed on the multi-information display
and the LTA indicator illuminates in orange, follow the appropriate trouble-
shooting procedure. Also, if a different warning message is displayed, follow
the instructions displayed on the screen.

●

“LTA Malfunction Visit Your Dealer”
The system may not be operating properly. Have the vehicle inspected by
your Toyota dealer.

●

“LTA Unavailable”
The system is temporarily canceled due to a malfunction in a sensor other
than the front camera. Turn the LTA system off, wait for a little while, and
then turn the LTA system back on.

●

“LTA Unavailable at Current Speed”
The function cannot be used as the vehicle speed exceeds the LTA opera-
tion range. Drive slower.

■

Customization

Function settings can be changed.
(Customizable features:



P. 246)

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5-5. Using the driving support systems

RSA (Road Sign Assist)



The RSA system recognizes spe-
cific road signs using the front
camera to provide information to
the driver via the display.

If the system judges that the vehicle is being driven over the speed
limit, performing prohibited actions, etc. according to the recognized
road signs, it notifies the driver through a visual notification and notifi-
cation buzzer.



: If equipped

Summary of function

WARNING

■

Before using the RSA

Do not rely solely upon the RSA system. RSA is a system which supports
the driver by providing information, but it is not a replacement for a driver’s
own vision and awareness. Drive safely by always paying careful attention
to the traffic rules.

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When the front camera recognizes a sign, the sign will be displayed
on the main display or multi-information display.

●

When the driving assist system
information is selected in multi-
information display, a maximum
of 2 signs can be displayed on
the multi-information display.
(



P. 220)

●

When a tab other than the driv-
ing assist system information is
selected, the following types of
road signs will be displayed on
the main display. (



P. 209)

• Speed limit sign
• Do Not Enter sign (when

notification is necessary)

If signs other than speed limit signs are recognized, they will be displayed
in an overlapping stack under the current speed limit sign.

The following types of road signs, including electronic signs and blink-
ing signs, are recognized.

A non-official or a recently introduced traffic sign may not be recognized.

Indication on the main display or multi-information display

Supported types of road signs

Speed limit

Do Not Enter

Stop

Yield

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In the following situations, the RSA system will notify the driver.

●

When the vehicle speed exceeds the speed notification threshold of
the speed limit sign displayed, the sign display will be emphasized
and a buzzer will sound.

●

When the RSA system recognizes a do not enter sign and deter-
mines that your vehicle has entered a no-entry area, the displayed
sign will flash and a buzzer will sound.

Depending on the situation, a notification function may not operate
properly.

■

Setting procedure



P. 246

■

Automatic turn-off of RSA sign display

In the following situations, a displayed speed limit sign and/or do not enter
sign will stop being displayed automatically:

●

No sign has been recognized for a certain distance.

●

The road changes due to a left or right turn, etc.

In the following situations, stop and yield signs will stop being displayed auto-
matically:

●

The system determines that your vehicle has passed the sign.

●

The road changes due to a left or right turn, etc.

■

Conditions in which the function may not operate or detect correctly

In the following situations, RSA does not operate normally and may not rec-
ognize signs, display the incorrect sign, etc. However, this does not indicate a
malfunction.

●

The front camera is misaligned due to a strong impact being applied to the
sensor, etc.

●

Dirt, snow, stickers, etc. are on the windshield near the front camera.

●

In inclement weather such as heavy rain, fog, snow or sand storms

●

Light from an oncoming vehicle, the sun, etc. enters the front camera.

●

The sign is dirty, faded, tilted or bent.

●

The contrast of electronic sign is low.

●

All or part of the sign is hidden by the leaves of a tree, a pole, etc.

●

The sign is only visible to the front camera for a short amount of time.

●

The driving scene (turning, lane change, etc.) is judged incorrectly.

●

If a sign not appropriate for the currently traveled lane, but the sign exists
directly after a freeway branches, or in an adjacent lane just before merging.

●

Stickers are attached to the rear of the preceding vehicle.

Notification function

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●

A sign resembling a system compatible sign is recognized.

●

Side road speed signs may be detected and displayed (if positioned in sight
of the front camera) while the vehicle is traveling on the main road.

●

Roundabout exit road speed signs may be detected and displayed (if posi-
tioned in sight of the front camera) while traveling on a roundabout.

●

The front of the vehicle is raised or lowered due to the carried load

●

The surrounding brightness is not sufficient or changes suddenly.

●

When a sign intended for trucks, etc. is recognized.

●

The speed information displayed on the meter and on the navigation system
may be different due to the navigation system using map data.

■

Speed limit sign display

If the power switch was last turned off while a speed limit sign was displayed
on the main display or multi-information display, the same sign displays again
when the power switch is turned to ON mode.

■

If “RSA Malfunction Visit Your Dealer” is shown

The system may be malfunctioning. Have the vehicle inspected by your Toy-
ota dealer.

■

Customization

Some functions can be customized. (Customizable features:



P. 753)

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Dynamic radar cruise control



with full-speed

range

In vehicle-to-vehicle distance control mode, the vehicle automatically
accelerates, decelerates and stops to match the speed changes of the
preceding vehicle even if the accelerator pedal is not depressed. In
constant speed control mode, the vehicle runs at a fixed speed.
Use the dynamic radar cruise control with full-speed range on free-
ways and highways.

●

Vehicle-to-vehicle distance control mode (



P. 418)

●

Constant speed control mode (



P. 425)

Vehicle-to-vehicle

distance

switch
Indicators
Multi-information display
Set speed
Cruise control switch

Summary of functions

System Components

1

2
3
4
5

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WARNING

■

Before using dynamic radar cruise control with full-speed range

●

Driving safely is the sole responsibility of the driver. Do not rely solely on
the system, and drive safely by always paying careful attention to your sur-
roundings.

●

The dynamic radar cruise control with full-speed range provides driving
assistance to reduce the driver’s burden. However, there are limitations to
the assistance provided.
Read the following conditions carefully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be correctly detecting the vehicle ahead:



P. 428

• Conditions under which the vehicle-to-vehicle distance control mode

may not function correctly:



P. 429

●

Set the speed appropriately depending on the speed limit, traffic flow, road
conditions, weather conditions, etc. The driver is responsible for checking
the set speed.

●

Even when the system is functioning normally, the condition of the preced-
ing vehicle as detected by the system may differ from the condition
observed by the driver. Therefore, the driver must always remain alert,
assess the danger of each situation and drive safely. Relying solely on this
system or assuming the system ensures safety while driving can lead to
an accident, resulting in death or serious injury.

●

Switch the dynamic radar cruise control with full-speed range setting to off
using the “ON-OFF” button when not in use.

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WARNING

■

Cautions regarding the driving assist systems

Observe the following precautions, as there are limitations to the assistance
provided by the system.
Failure to do so may cause an accident resulting in death or serious injury.

●

Assisting the driver to measure following distance
The dynamic radar cruise control with full-speed range is only intended to
help the driver in determining the following distance between the driver’s
own vehicle and a designated vehicle traveling ahead. It is not a mecha-
nism that allows careless or inattentive driving, and it is not a system that
can assist the driver in low-visibility conditions. It is still necessary for
driver to pay close attention to the vehicle’s surroundings.

●

Assisting the driver to judge proper following distance
The dynamic radar cruise control with full-speed range determines
whether the following distance between the driver’s own vehicle and a
designated vehicle traveling ahead is within a set range. It is not capable
of making any other type of judgement. Therefore, it is absolutely neces-
sary for the driver to remain vigilant and to determine whether or not there
is a possibility of danger in any given situation.

●

Assisting the driver to operate the vehicle
The dynamic radar cruise control with full-speed range does not include
functions which will prevent or avoid collisions with vehicles ahead of your
vehicle. Therefore, if there is ever any possibility of danger, the driver must
take immediate and direct control of the vehicle and act appropriately in
order to ensure the safety of all involved.

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WARNING

■

Situations unsuitable for dynamic radar cruise control with full-speed
range

Do not use dynamic radar cruise control with full-speed range in any of the
following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.

●

Roads where there are pedestrians, cyclists, etc.

●

In heavy traffic

●

On roads with sharp bends

●

On winding roads

●

On slippery roads, such as those covered with rain, ice or snow

●

On steep downhills, or where there are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.

●

At entrances to freeways and highways

●

When weather conditions are bad enough that they may prevent the sen-
sors from detecting correctly (fog, snow, sandstorm, heavy rain, etc.)

●

When there is rain, snow, etc. on the front surface of the radar or front
camera

●

In traffic conditions that require frequent repeated acceleration and decel-
eration

●

During emergency towing

●

When an approach warning buzzer is heard often

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This mode employs a radar to detect the presence of vehicles up to
approximately 328 ft. (100 m) ahead, determines the current vehicle-
to-vehicle following distance, and operates to maintain a suitable fol-
lowing distance from the vehicle ahead. The desired vehicle-to-vehi-
cle distance can also be set by operating the vehicle-to-vehicle
distance switch.

When driving on downhill slopes, the vehicle-to-vehicle distance may
become shorter.

Driving in vehicle-to-vehicle distance control mode

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Example of constant speed cruising
When there are no vehicles ahead

The vehicle travels at the speed set by the driver.

Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed
appears

When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle speed is
necessary, the system applies the brakes (the stop lights will come on at
this time). The system will respond to changes in the speed of the vehicle
ahead in order to maintain the vehicle-to-vehicle distance set by the driver.
Approach warning warns you when the system cannot decelerate suffi-
ciently to prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also stop (vehicle is
stopped by system control). After the vehicle ahead starts off, pushing the
cruise control lever up or depressing the accelerator pedal (start-off opera-
tion) will resume follow-up cruising. If the start-off operation is not per-
formed, system control continues to keep your vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an over-
taking lane while driving at 50 mph (80 km/h) or more, the vehicle will
accelerate to help to overtake a passing vehicle.
The system’s identification of what is an overtaking lane may be deter-
mined solely based on the location of the steering wheel in the vehicle (left
side driver position versus right side driver position.) If the vehicle is driven
to a region where the overtaking lane is on a different side from where the
vehicle is normally driven, the vehicle may accelerate when the turn signal
lever is operated in the opposite direction to the overtaking lane (e.g., if the
driver normally operates the vehicle in a region where the overtaking lane
is to the right but then drives to a region where the overtaking lane is to the
left, the vehicle may accelerate when the right turn signal is activated).

Example of acceleration
When there are no longer any preceding vehicles driving slower
than the set speed

The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.

1

2

3

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Press the “ON-OFF” button to
activate the cruise control.

Dynamic radar cruise control indi-
cator will come on and a message
will be displayed on the multi-infor-
mation display.
Press the button again to deacti-
vate the cruise control.
If the “ON-OFF” button is pressed
and held for 1.5 seconds or more,
the system turns on in constant
speed control mode. (



P. 425)

Accelerate or decelerate, with
accelerator pedal operation, to
the desired vehicle speed (at or
above approximately 20 mph
[30 km/h]) 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.

Setting the vehicle speed (vehicle-to-vehicle distance control
mode)

1

2

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●

Adjusting the set speed by the lever

To change the set speed, operate the lever until the desired set speed
is displayed.

Increases the speed

(Except when the vehicle has been
stopped by system control in vehi-
cle-to-vehicle

distance

control

mode)

Decreases the speed

Fine adjustment: Momentarily
move the lever in the desired
direction.
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 the U.S. mainland and Hawaii

Fine adjustment: By 1 mph (1.6 km/h)

*

1

or 1 km/h (0.6 mph)

*

2

each time

the lever is operated
Large adjustment: Increases or decreases in 1 mph (1.6 km/h)

*

1

or 1 km/h

(0.6 mph)

*

2

increments for as long as the lever is held



For Canada

Fine adjustment: By 1 mph (1.6 km/h)

*

1

or 1 km/h (0.6 mph)

*

2

each time

the lever is operated
Large adjustment: Increases or decreases in 5 mph (8 km/h)

*

1

or 5 km/h

(3.1 mph)

*

2

increments for as long as the lever is held

In the constant speed control mode (



P. 425), the set speed will be

increased or decreased as follows:

Fine adjustment: By 1 mph (1.6 km/h)

*

1

or 1 km/h (0.6 mph)

*

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 “MPH”

*

2

: When the set speed is shown in “km/h”

Adjusting the set speed

1

2

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●

Increasing the set speed by the accelerator pedal
Accelerate with accelerator pedal operation to the desired vehicle
speed.
Push the lever down.

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.

Select a distance from the table below. Note that the distances shown
correspond to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle
distance increases/decreases in accordance with vehicle speed.
When the vehicle is stopped by system control, the vehicle stops at a
certain vehicle-to-vehicle distance depending on the situation.

Changing the vehicle-to-vehicle distance (vehicle-to-vehicle dis-
tance control mode)

1

2

Preceding
vehicle mark

1
2
3

Vehicle-to-vehicle distance settings (vehicle-to-vehicle distance
control mode)

Distance options

Vehicle-to-vehicle distance

Long

Approximately 160 ft. (50 m)

Medium

Approximately 130 ft. (40 m)

Short

Approximately 100 ft. (30 m)

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After the vehicle ahead of you
starts off, push the lever up.
Your vehicle will also resume fol-
low-up cruising if the accelerator
pedal is depressed after the vehi-
cle ahead of you starts off.

Pulling the lever toward you
cancels the speed control.

The speed control is also canceled
when

the

brake

pedal

is

depressed.
(When the vehicle has been
stopped

by

system

control,

depressing the brake pedal does
not cancel the setting.)

Pushing the lever up resumes the cruise control and returns vehicle
speed to the set speed.

Resuming follow-up cruising when the vehicle has been stopped
by system control (vehicle-to-vehicle distance control mode)

Canceling and resuming the speed control

1

2

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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

Approach warning (vehicle-to-vehicle distance control mode)

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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, 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 20 mph
[30 km/h]) 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. 421

Canceling and resuming the speed setting:



P. 423

Selecting constant speed control mode

1

2

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■

Dynamic radar cruise control with full-speed range can be set when

●

The shift position is in D.

●

The desired set speed can be set when the vehicle speed is approximately
20 mph (30 km/h) or more.
(However, when the vehicle speed is set while driving at below approxi-
mately 20 mph [30 km/h], the set speed will be set to approximately 20 mph
[30 km/h].)

■

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.

■

When the vehicle stops while follow-up cruising

●

Pushing the lever up while the vehicle ahead stops will resume follow-up
cruising if the vehicle ahead starts off within approximately 3 seconds after
the lever is pushed up.

●

If the vehicle ahead starts off within 3 seconds after your vehicle stops, fol-
low-up cruising will be resumed.

■

Automatic cancelation of vehicle-to-vehicle distance control mode

Vehicle-to-vehicle distance control mode is automatically canceled in the fol-
lowing situations.

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is turned off.

●

The sensor cannot detect correctly because it is covered in some way.

●

Pre-collision braking is activated.

●

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. 348



If vehicle-to-vehicle distance control mode is automatically canceled for any
reasons other than the above, there may be a malfunction in the system.
Contact your Toyota dealer.

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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 10 mph (16 km/h) below
the set vehicle speed.

●

Actual vehicle speed falls below approximately 20 mph (30 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is turned off.

●

Pre-collision braking is activated.

If constant speed control mode is automatically canceled for any reasons
other than the above, there may be a malfunction in the system. Contact your
Toyota dealer.

■

Brake operation

A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.

■

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. (



P. 382, 684)

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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. 424) may 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 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

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Driving mode select switch

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.

In response to driving conditions, one of 3 driving modes can be
selected.

Driving modes

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Normal mode
Suitable for normal driving.

When normal mode is selected, the “ECO MODE” and “PWR MODE”
indicators turn off.

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.

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 system automatically
switches to air conditioning eco mode (



P. 515, 527), allowing for driv-

ing that leads to even better fuel economy.

■

The driving mode after turning the power switch off

The driving mode will not be changed automatically until the switch is
pressed, even if the power switch is turned off.

1

2

3

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BSM (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 Cross Traffic Alert function
Assists the driver when backing up

These functions use same sensors.

Outside rear view mirror indicators

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 Cross 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

Summary of the Blind Spot Monitor

1

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The Blind Spot Monitor on/off screen and indicator

The Blind Spot Monitor function and Rear Cross Traffic Alert function can
be switched on and off using the multi-information display. (



P. 246)

When switched on, the BSM indicator illuminates on the meter and the
buzzer sounds.

Rear Cross Traffic Alert buzzer (Rear Cross Traffic Alert function
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 screen (RCTA function only)

If a vehicle approaching from the right or left at the rear of the vehicle is
detected, the RCTA detection screen will be shown on the multi-informa-
tion display.

The Blind Spot Monitor function and Rear Cross Traffic Alert function

can be enabled/disabled on the

screen (



P. 246) of the multi-

information display.

Once the systems are disabled, the systems will not be enabled until they

are enabled by the

screen of multi-information display again. (The

systems are not automatically enabled even when the hybrid system is
restarted.)

Changing settings of the Blind Spot Monitor function and Rear
Cross Traffic Alert function

2

3

4

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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.

■

The Rear Cross Traffic Alert buzzer hearing

The Rear Cross Traffic Alert buzzer 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. 436). 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 your Toyota dealer.

■

Certifications for the Blind Spot Monitor



For vehicles sold in the U.S.A. and Hawaii

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

For vehicles sold in Canada

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WARNING

■

Handling the radar sensor

●

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 your Toyota
dealer.
• 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.

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.

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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 areas that vehicles can be detected in are outlined below.
The range of the detection area extends to:

Approximately 11.5 ft. (3.5 m)
from the side of the vehicle

The first 1.6 ft. (0.5 m) from the
side of the vehicle is not in the
detection area

Approximately 9.8 ft. (3 m) from
the rear bumper
Approximately 3.3 ft. (1 m) for-
ward of the rear bumper

The Blind Spot Monitor function

The Blind Spot Monitor function detection areas

IO55PH029

1

2

3

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5-5. Using the driving support systems

■

The Blind Spot Monitor function is operational when

●

The BSM system is set to on (



P. 246)

●

Vehicle speed is greater than approximately 10 mph (16 km/h)

■

The Blind Spot Monitor function will detect a vehicle when

●

A vehicle in an adjacent lane overtakes your vehicle.

●

You overtake a vehicle in adjacent lane slowly.

●

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

*

●

Vehicles which are being overtaken rapidly by your vehicle

*

*

: Depending on conditions, detection of a vehicle and/or object may occur.

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.

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■

Conditions under which the Blind Spot Monitor function may not func-
tion correctly

●

The 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

●

Instances 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

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5-5. Using the driving support systems

The Rear Cross Traffic Alert functions when your vehicle is in reverse.
It can detect other vehicles approaching from the right or left rear of
the vehicle. It uses radar sensors to alert the driver of the other vehi-
cle’s existence through flashing the outside rear view mirror indicators
and sounding a buzzer.

The Rear Cross Traffic Alert function

IO55PH087

Approaching vehicles

Detection areas

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 Rear Cross Traffic Alert function is only an assist and is not a replace-
ment for careful driving. The driver must be careful when backing up, even
when using the Rear Cross Traffic Alert function. The driver’s own visual
confirmation of behind you and your vehicle is necessary and be sure there
are no pedestrians, other vehicles etc. before backing up. Failure to do so
could cause death or serious injury.
According to conditions, the system may not function correctly. Therefore
the driver’s own visual confirmation of safety is necessary.

1

2

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The areas that vehicles can be detected in are outlined below.

To give the driver a more consistent time to react, the buzzer can alert
for faster vehicles from farther away.
Example:

■

The Rear Cross Traffic Alert function is operational when

●

The BSM system is set to on. (



P. 246)

●

The shift position is in R.

●

Vehicle speed is less than approximately 5 mph (8 km/h).

●

Approaching vehicle speed is between approximately 5 mph (8 km/h) and
18 mph (28 km/h).

The Rear Cross Traffic Alert function detection areas

IO55PH088

Approaching vehicle

Speed

Approximate
alert distance

Fast

18 mph (28 km/h)

65 ft. (20 m)

Slow

5 mph (8 km/h)

18 ft. (5.5 m)

1

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5-5. Using the driving support systems

■

Conditions under which the Rear Cross Traffic Alert function will not
detect a vehicle

The Rear Cross Traffic Alert function is not designed to detect the following
types of vehicles and/or objects:

●

Vehicles approaching from directly behind

●

Vehicles backing up in a parking space next to your vehicle

●

Guardrails, walls, signs, parked vehicles and similar stationary objects

*

●

Small motorcycles, bicycles, pedestrians, etc.

*

●

Vehicles moving away from your vehicle

●

Vehicles approaching from the parking spaces next to your vehicle

*

*

: Depending on the conditions, detection of a vehicle and/or object may

occur.

■

Conditions under which the Rear Cross Traffic Alert function may not
function correctly

●

The Rear Cross Traffic Alert function may not detect vehicles correctly in the
following 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 a vehicle is approaching at high speed

●

Vehicles that the sensors cannot detect
due to obstructions

IO55PH089

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• Immediately after the Blind Spot Monitor function is turned on
• Immediately after the hybrid system is started with the Blind Spot Monitor

function on

• When backing up on a slope with a

sharp change in grade

• When backing out of a shallow angle

parking spot

• When the sensors cannot detect a

vehicle due to obstructions

IO55PH089

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PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

●

Instances of the Rear Cross Traffic Alert function unnecessarily detecting a
vehicle and/or object may increase in the following situations:
• When a vehicle passes by the side of your vehicle

• 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

• When the parking space faces a

street and vehicles are being driven
on the street

445

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Intuitive parking assist



Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Front side sensors
Rear side sensors

The intuitive parking assist can be

enabled/disabled on the

screen (



P. 246) of the multi-

information display.

When on is selected, intuitive park-
ing assist indicator will come on.

Once off is selected, the intuitive parking assist will not return to on until it

is turned to on by the

screen of multi-information display again. (The

system does not automatically return to on even when the hybrid system 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 intuitive parking assist on/off

446

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

When the sensors detect an obstacle, the following displays inform
the driver of the position and distance to the obstacle.

■

Multi-information display

Front center sensor opera-
tion
Front corner sensor opera-
tion
Front side sensor operation
Rear side sensor operation
Rear corner sensor operation
Rear center sensor operation

• The operation display is gray when the sensors are operating.
• The front side sensor operation displays and rear side sensor opera-

tion displays are not shown until a scan of the side areas is com-
pleted.

Display

1

2

3
4
5
6

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■

Distance display

Sensors that detect an obstacle will illuminate continuously or blink.

*

: The images may differ from those shown in the illustrations depending on

the detection status. (



P. 446)

Sensor detection display, obstacle distance

Display

*

Approximate distance to obstacle

Front corner, front

center and front side

sensors

Rear corner, rear

center and rear side

sensors

(continuous)

3.3 ft. (100 cm) to
2.0 ft (60 cm)

4.9 ft. (150 cm) to
2.0 ft. (60 cm)

(continuous)

2.0 ft. (60 cm) to
1.5 ft (45 cm)
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
3.3 ft. (100 cm) to
2.3 ft. (70 cm)

3.3 ft. (100 cm) to
2.3 ft. (70 cm)
2.0 ft. (60 cm) to
1.5 ft (45 cm)
2.0 ft. (60 cm) to
1.5 ft. (45 cm)

(continuous)

1.5 ft. (45 cm) to
1.2 ft. (35 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
2.3 ft. (70 cm) to
1.0 ft. (30 cm)

2.3 ft. (70 cm) to
1.0 ft. (30 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)

(blinking)

Less than
1.2 ft. (35 cm)
Less than
1.2 ft. (35 cm)
Less than
1.0 ft. (30 cm)

Less than
1.0 ft. (30 cm)
Less than
1.2 ft. (35 cm)
Less than
1.2 ft. (35 cm)

Far

Near

1

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

Front center sensors
Front corner sensors
Front side sensors

Rear side sensors
Rear corner sensors
Rear center sensors

1
2
3

4
5
6

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When an obstacle is detected, the buzzer sounds.

●

As the obstacle is approached, the buzzer sounds more rapidly.
When the obstacle is extremely close, the buzzer switches from
sounding intermittently (short beeps) to continuously (a long beep).

• Distance to obstacle detected by front corner sensor is approxi-

mately 1.2 ft. (35 cm) or less

• Distance to obstacle detected by front side sensor or rear side

sensor is approximately 1.0 ft. (30 cm) or less

• Distance to obstacle detected by front sensor is approximately

1.2 ft. (35 cm) or less

• Distance to obstacle detected by rear corner sensor is approxi-

mately 1.2 ft. (35 cm) or less

• Distance to obstacle detected by back sensor is approximately

1.2 ft. (35 cm) or less

●

When an obstacle is detected by multiple sensors simultaneously,
the buzzer sounds according to the distance to the closest obsta-
cle.

●

When obstacles are simultaneously detected to the front and rear
of the vehicle, separate buzzers sound patterns according to the
distance to each obstacle.

The volume and timing of the buzzer can be changed. (



P. 753)

Buzzer

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Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
Approximately 2.0 ft. (60 cm)
Approximately 3.3 ft. (100 cm)

• The detection range is shown in

the illustration to the right. How-
ever, the sensor will not detect
the obstacle if it is too close.

• For details regarding obstacle

detection in the side areas.
(



P. 450)

• The distance at which an obsta-

cle can be detected and whether
it can be detected depends on
the shape and condition of the
obstacle.

The obstacle detection range can be changed. (



P. 753)

■

Operation conditions

The power switch is turned on.

●

Front corner sensors:
• Shift position is not in P
• Vehicle speed is approximately 6 mph (10 km/h) or less

●

Front side sensors/rear side sensors:
• Shift position is not in P
• Vehicle speed is approximately 6 mph (10 km/h) or less
• Steering wheel is turned approximately 90



or more

●

Front center sensors:
• Shift position is not in P or R
• Vehicle speed is approximately 6 mph (10 km/h) or less

●

Rear corner sensors/rear center sensors:
Shift position is in R

■

Intuitive parking assist pop-up display



P. 471

Detection range of the sensors

1
2
3
4

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PRIUS PRIME_OM_OM47D71U_(U)

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■

Sensor detection information

●

The sensor’s detection areas are limited to the areas around the vehicle’s
bumper.

●

Depending on the shape of the obstacle and other factors, the detection dis-
tance may shorten, or detection may be impossible.

●

Obstacles may not be detected if they are too close to the sensor.

●

There will be a short delay between obstacle detection and display. Even
when traveling at a low speed, if you come too close to an obstacle before
the display and buzzer activate, the display and buzzer may not activate at
all.

●

Thin posts or objects lower than the sensor may not be detected when
approached, even if they have been detected once.

●

It might be difficult to hear beeps due to the volume of audio system or air
flow noise of the air conditioning system.

■

Obstacle warning function

When an obstacle in the side areas is within the vehicle course while the
vehicle is moving forward or backward, this function inform the driver by the
display and the buzzer. (



P. 447, 448)

■

Obstacle detection in side areas

●

Obstacles in the side areas are detected while driving by scanning the side
areas with the side sensors. Recognized obstacles are retained in memory
for up to approximately 2 minutes.

●

Obstacles may not be detected in the side areas until the scan completes.
After the power switch is turned on, scanning completes after driving the
vehicle for a short period of time.

●

When an obstacle such as another vehicle, pedestrian or animal is detected
by the side sensors, the obstacle may continue to be detected even after it
has left the side sensor detection area.

Obstacle
Calculated vehicle course

1

2

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■

If “Clean Parking Assist Sensor” is displayed on the multi-information
display

A sensor may be dirty or covered with snow or ice. In such cases, if it is
removed from the sensor, the system should return to normal.
Also, due to the sensor being frozen at low temperatures, a malfunction dis-
play may appear or an obstacle may not be detected. If the sensor thaws out,
the system should return to normal.

■

If “Parking Assist Malfunction” is displayed on the multi-information dis-
play

Depending on the malfunction of the sensor, the device may not be working
normally. Have the vehicle inspected by your Toyota dealer.

■

Certification (Canada only)

This ISM device complies with Canadian ICES-001.

■

Customization

Settings (e.g. buzzer volume) can be changed.
(Customizable features:



P. 753)

WARNING

■

When using intuitive parking assist

Observe the following precautions to avoid an unexpected accident.

●

Do not exceed the speed limit of 6 mph (10 km/h).

●

The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle (especially
the sides of the vehicle) for safety, and drive slowly, using the brake to
control the vehicle’s speed.

●

Do not install accessories within the sensors’ detection areas.

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WARNING

■

Sensors

Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where
this may occur are listed below.

●

There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve
this problem.)

●

The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen, the screen may show an
abnormal display, or obstacles may not be detected.

●

The sensor is covered in any way.

●

In harsh sunlight or intense cold weather

●

On an extremely bumpy road, on an incline, on gravel, or on grass

●

The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing ultra-
sonic waves.

●

The sensor is splashed with water or drenched with heavy rain.

●

The sensor is drenched with water on a flooded road.

●

The vehicle is leaning considerably to one side.

●

The vehicle is equipped with a fender pole or wireless antenna.

●

The vehicle is approaching a tall or curved curb.

●

The area directly under the bumpers is not detected.

●

If obstacles draw too close to the sensor.

●

The bumper or sensor receives a strong impact.

●

A non-genuine Toyota suspension (lowered suspension etc.) is installed.

●

There is another vehicle equipped with parking assist sensors in the vicin-
ity.

●

Towing eyelets are installed.

●

A backlit license plate is installed.

In addition to the examples above, depending on the shape and condition of
obstacles, detection may not be possible, or the detection range may be
shortened.

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WARNING

■

Side sensors

In the following situations, the intuitive parking assist may not operate nor-
mally and may result in an unexpected accident. Drive carefully.

●

Obstacles may not be detected in the side areas until the vehicle is driven
for a short time and a scan of the side areas is completed. (



P. 450)

●

Even after the scan of the side areas is completed, obstacles such as
other vehicles, people or animals that approach from the sides cannot be
detected.

●

Even after the scan of the side areas is completed, obstacles may not be
detected depending on the surrounding situation of the vehicle.
At that time, the side sensor operation displays (



P. 446) temporary turn

off.

■

Obstacles which may not be properly detected

The shape of the obstacle may prevent the sensor from detecting it. Pay
particular attention to the following obstacles:

●

Wires, fences, ropes, etc.

●

Cotton, snow and other materials that absorb sound waves

●

Sharply-angled objects

●

Low obstacles

●

Tall obstacles with upper sections projecting outwards in the direction of
your vehicle

●

People may not be detected if they are wearing certain types of clothing.

●

Moving objects such as people or animals

454

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NOTICE

■

When using intuitive parking assist

In the following situations, the system may not function correctly due to a
sensor malfunction etc. Have the vehicle checked by your Toyota dealer.

●

Intuitive parking assist operation display flashes, and a beep sounds when
no obstacles are detected.

●

If the area around a sensor collides with something, or is subjected to
strong impact.

●

If the bumper collides with something.

●

If the display shows up and remains on without a beep.

●

If a display error occurs, first check the sensor.
If the error occurs even when there is no ice, snow or mud on the sensor, it
is likely that the sensor is malfunctioning.

■

Notes when washing the vehicle

●

Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.

●

When using steam to wash the vehicle, do not direct steam too close to
the sensors. The sensors may not function properly if subjected to steam.

455

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Parking Support Brake function



The system operates in the following situations when an obstacle is
detected in the traveling direction of the vehicle.

◆

The vehicle is driven at low speeds and the brake pedal is not
depressed, or is depressed too late

◆

The accelerator pedal is depressed too far



: If equipped

When a collision may occur with an obstacle while parking or
traveling at low speeds, when the vehicle suddenly moves for-
ward due to mistaken accelerator pedal operation, or when the
vehicle moves due to the wrong shift position being selected,
the sensors detect obstacles to the front or rear in the traveling
direction of the vehicle, and the system operates to lessen
impact with obstacles such as walls, and reduce resulting dam-
age.

Examples of system operation

456

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5-5. Using the driving support systems

◆

The vehicle moves due to the wrong shift position being
selected

Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors

The Parking Support Brake function can be enabled/disabled on the

screen (



P. 246) of the multi-information display.

When the Parking Support Brake
function is off, the PKSB OFF indi-
cator illuminates.

When the Parking Support Brake function is switched off, system operation

does not resume until the function is switched back on through the
screen on the multi-information display. (System operation does not
resume by operating the power switch.)

Types of sensors

1
2
3
4

Changing settings of the Parking Support Brake function

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When the Parking Support Brake function detects an obstacle with a
probability of collision, hybrid system output is restricted to restrain an
increase in vehicle speed. (Hybrid system output restriction control: A)
Furthermore, when the accelerator pedal continues to be depressed,
the brakes are applied to reduce the vehicle speed. (Brake control: B)

Operation

DOWN

DOWN

UP

ON

OFF

ON

OFF

ON

OFF

458

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Accelerator pedal
Brake pedal
Hybrid system output
Braking force

Control starts
Collision is possible
Collision is likely

1
2
3
4

5
6
7

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■

Operation starting conditions

When the PKSB OFF indicator is not illuminated or flashing
(



P. 464, 676) and all of the following conditions are met, the

system operates.



Hybrid system output restriction control

●

The Parking Support Brake function is on.

●

The vehicle speed is 10 mph (15 km/h) or less.

●

There is an obstacle in the traveling direction of the vehicle (6 to
13 ft. [2 to 4 m ahead]).

●

The system determined that a stronger-than-normal brake opera-
tion was necessary to avoid a collision.



Brake control

●

Hybrid system output restriction control is being performed.

●

The system determined that an emergency brake operation was
necessary to avoid a collision.

■

Operation ending conditions

In any of the following situations, the system stops operating.



Hybrid system output restriction control

●

The Parking Support Brake function has been turned off
(stopped).

●

The collision became avoidable with normal brake operation.

●

The obstacle is no longer in the traveling direction of the vehicle
(6 to 13 ft. [2 to 4 m ahead]).



Brake control

●

The Parking Support Brake function has been turned off
(stopped).

●

Approximately 2 seconds elapsed after the vehicle was stopped
by brake control.

●

The brake pedal was depressed after the vehicle was stopped by
brake control.

●

The obstacle is no longer in the traveling direction of the vehicle
(6 to 13 ft. [2 to 4 m ahead]).

Operation conditions

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When the hybrid system output restriction control or brake control
operates, the buzzer sounds and a message is displayed on the multi-
information display to alert the driver.

Depending on the situation, output restriction control operates to either
limit acceleration or restrict output as much as possible.

Display and buzzer for hybrid system output restriction control
and brake control

Control

Situation

Multi-information

display

PKSB

OFF Indi-

cator

Buzzer

Hybrid sys-
tem

output

restriction
control

is

operating
(accelera-
tion

limita-

tion control)

Acceleration
at a certain
speed

or

higher is not
possible.

Not illumi-

nated

Short

beep

Hybrid sys-
tem

output

restriction
control

is

operating
(control

to

restrict out-
put as much
as possible)

A stronger-
than-normal
brake opera-
tion is neces-
sary

Not illumi-

nated

Brake

con-

trol is operat-
ing

Emergency
braking

is

necessary

The vehicle
is stopped by
system oper-
ation

The vehicle
is

stopped

after

brake

control oper-
ation

Illumi-

nated

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■

Sensor detection range

The detection range of the Parking Support Brake function differs from the
detection range of the intuitive parking assist. (



P. 449)

Therefore, even if the intuitive parking assist detects an obstacle and pro-
vides a warning, the Parking Support Brake function may not start operating.

■

System operation

When the vehicle is stopped by system operation, the Parking Support Brake
function stops and the PKSB OFF indicator illuminates.

■

System recovery

When the Parking Support Brake function is stopped by system operation
and you would like to resume operation, either turn the Parking Support
Brake function on again (



P. 456), or turn the power switch off and then back

on. Furthermore, when the vehicle moves with an obstacle no longer in the
traveling direction of the vehicle, or when the traveling direction of the vehicle
changes (such as when switching from moving forward to backing up, and
vice versa), system operation automatically resumes.

■

Obstacles not detected by the sensors

The following obstacles may not be detected by the sensors.

●

Objects such as people, cloth and snow, that are difficult for sonic waves to
reflect off of. (In particular, people may also not be detected depending on
the type of clothing they are wearing.)

●

Objects not perpendicular with the ground, objects not at a right angle to the
traveling direction of the vehicle, uneven objects or waving objects

●

Low objects

●

Thin objects such as wires, fences, ropes and signposts

●

Objects that are extremely close to the bumper

■

Intuitive parking assist buzzer

Regardless of whether the intuitive parking assist is on or off (



P. 445), if the

Parking Support Brake function is not stopped (



P. 456), when the front or

rear sensors detect an obstacle and brake control is performed, the intuitive
parking assist buzzer also sounds and a notification of the approximate dis-
tance to the obstacle is provided.

462

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■

Situations when the system may operate even though there is no possi-
bility of a collision

In the following situations, the system may operate even though there is no
possibility of a collision.

●

Environmental influence

• The vehicle is driven toward a banner or flag, a low-hanging branch or a

boom barrier (such as those used at railroad crossings, toll gates and
parking lots).

• There is an obstacle on the shoulder of the road (when the vehicle is

driven in a narrow tunnel, on a narrow bridge or on a narrow road)

• The vehicle is being parallel parked
• There is a rut or hole in the surface of the road
• When the vehicle is driven on a metal cover (grating), such as those used

for drainage ditches

• The vehicle is driven on a steep slope
• The sensor is covered by water on a flooded road

●

Influence from the weather
• Ice, snow, dirt, etc., has adhered to the sensor (if removed, the system

returns to normal)

• Heavy rain or water strikes the vehicle
• In severe weather such as fog, snow or a sand storm

●

Influence from other sonic waves
• An ultrasonic wave source is nearby, such as the horn or parking assist

sensors of another vehicle, a vehicle detector, a motorcycle engine or the
air brake of a large vehicle

• Electronic components (such as a backlit license plate (especially fluo-

rescent types), fog lights, a fender pole or a wireless antenna) are
installed near the sensors

• The vehicle is driven on a narrow

road

• The vehicle is driven on a gravel road

or in an area with tall grass

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●

Changes in the vehicle
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the carried load

(the nose tilts up or down)

• The direction of the sensor has deviated due to a collision or other impact

■

In the unlikely event that the Parking Support Brake function mistakenly
operates at a crossing or elsewhere

Even in the unlikely event that the Parking Support Brake function mistakenly
operates at a crossing or elsewhere, brake control is canceled after approxi-
mately 2 seconds, allowing you to proceed forward and leave the area. Fur-
thermore, brake control is also canceled when the brake pedal is depressed.
Depressing the accelerator pedal again allows you to proceed forward and
leave the area.

■

Situations in which the system may not operate normally

In the following situations, the system may not operate normally.

●

Environmental influence
• There is an obstacle that cannot be detected between the vehicle and

another obstacle that can be detected

• An obstacle such as another vehicle, a motorcycle, a bicycle or a pedes-

trian cuts in front of the vehicle or jumps out from the side.

●

Influence from the weather

• Ice, snow, dirt, etc., has adhered to the sensor (if removed, the system

returns to normal)

• Heavy rain or water strikes the vehicle
• In severe weather such as fog, snow or a sand storm

• The area around the sensor is

extremely hot or cold

• The wind is strong

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●

Influence from other sonic waves
• An ultrasonic wave source is nearby, such as the horn or parking assist

sensors of another vehicle, a vehicle detector, a motorcycle engine or the
air brake of a large vehicle

• Electronic components (such as a backlit license plate (especially fluo-

rescent types), fog lights, a fender pole or a wireless antenna) are
installed near the sensors

●

Changes in the vehicle
• When driving with the shift position in N
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the carried load

(the nose tilts up or down)

• The direction of the sensor has deviated due to a collision or other impact

■

Parking Support Brake function while the Simple Advanced Parking
Guidance System is operating



P. 469

■

When removing and installing the 12-volt battery

The system needs to be initialized.
The system can be initialized by driving the vehicle straight ahead for 5 sec-
onds or more at a speed of approximately 22 mph (35 km/h) or higher.

■

When “PKSB Unavailable” is displayed on the multi-information display
and the PKSB OFF indicator flashes

●

Ice, snow, dirt, etc., may have adhered to the sensor. If this occurs, remove
the ice, snow, dirt, etc., from the sensor to return the system to normal.
Also, a warning message may be displayed at low temperatures due to ice
forming on the sensor, and the sensor may not detect obstacles. Once the
ice melts, the system will return to normal.

●

If this message is shown even after removing dirt from the sensor, or shown
when the sensor was not dirty to begin with, have the vehicle inspected at
your Toyota dealer.

●

System initialization may not have been performed after removal and instal-
lation of the 12-volt battery. Perform system initialization.

■

When “PKSB Malfunction Visit Your Dealer” is displayed on the multi-
information display, the PKSB OFF indicator flashes and the buzzer
sounds

The system may not be operating properly. Have the vehicle inspected at
your Toyota dealer.

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WARNING

■

For safe use

Do not rely solely upon the system. Relying solely upon the system may
lead to an unexpected accident.

●

Driving safely is the sole responsibility of the driver. Pay careful attention
to the surrounding conditions in order to ensure safe driving. The Parking
Support Brake function can provide support to lessen the severity of colli-
sions. However, it may not operate depending on the situation.

●

The Parking Support Brake function is not a system designed to com-
pletely stop the vehicle. Furthermore, even if the Parking Support Brake
function is able to stop the vehicle, brake control is canceled after approxi-
mately 2 seconds, so depress the brake pedal immediately.

■

In order for the system to operate properly

Make sure to observe the following precautions regarding the sensors
(



P. 456). Failure to observe these precautions may cause the sensors

not to operate properly, and may result in an unexpected accident.

●

Do not perform work such as modification, disassembly or painting

●

Only perform replacements using genuine parts

●

Do not subject the area around the sensors to any impacts

●

Do not damage the sensors, and always keep them clean

■

Handling the suspension

Do not modify the suspension, as changes to the height or incline of the
vehicle may prevent the sensors from correctly detecting obstacles, may
cause the system not operate, or may cause the system to operate unnec-
essarily.

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NOTICE

■

Preventing sensor malfunctions

●

If the area around a sensor is subjected to an impact, equipment may not
operate properly due to a sensor malfunction. Have the vehicle inspected
at your Toyota dealer.

●

When using a high-pressure washer to wash the vehicle, do not spray
water directly on the sensors. The sensors may not function properly if
subjected to an impact from strong water pressure.

●

When using steam to wash the vehicle, do not direct steam too close to
the sensors. The sensors may not function properly if subjected to steam.

■

Preventing unnecessary operation

In the following situations, turn the Parking Support Brake function off. The
system may operate even though there is no possibility of a collision.

●

A chassis roller, chassis dynamo, free roller or similar equipment is being
used for an inspection, etc.

●

The vehicle is being loaded onto a ship, truck or other transport vessel

●

The suspension has been lowered or tires that have a different size than
the genuine tires are equipped

●

The height of the vehicle has drastically changed due to the carried load
(the nose tilts up or down).

●

A towing eyelet is installed

●

When using an automatic car wash

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S-APGS (Simple Advanced Parking Guidance

System)



■

Function summary

The Simple Advanced Parking Guidance System automatically
operates the steering wheel to provide support when backing into
an area near a target parking spot, and when departing from a par-
allel parking spot. (Changing the shift position and speed adjust-
ment when moving forward or backing up are not performed
automatically.)

●

The Simple Advanced Parking Guidance System does not park
the vehicle automatically. It is a system that provides support
when pulling out of a perpendicular or parallel parking spot.

●

The Simple Advanced Parking Guidance System provides steer-
ing wheel operation assistance to guide the vehicle toward the
selected intended parking spot. The selected intended parking
spot may not always be reachable, depending on road and vehi-
cle conditions at the time of parking, and the distance to the
intended parking spot.

■

Linking with the Parking Support Brake function

While the Simple Advanced Parking Guidance System is operating,
if the system detects an obstacle that could result in a collision, the
emergency brakes operate, regardless of whether the Parking Sup-
port Brake function is on or off. (



P. 469)



: If equipped

Simple Advanced Parking Guidance System

WARNING

●

When backing up or proceeding forward, be sure to directly confirm the
safety of the area to the front or rear, and the area around the vehicle, and
slowly back up or proceed forward while adjusting the vehicle speed by
depressing the brake pedal.

●

If it seems the vehicle may make contact with a pedestrian, another vehi-
cle or any other obstacles, stop the vehicle by depressing the brake pedal,
and then press the S-APGS switch (



P. 470) to turn the system off.

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Chart of Simple Advanced Parking Guidance System assist
modes and functions

Assist mode

Type of
parking

Function summary

See page

Parallel parking

assist mode

Parallel park-

ing

Guidance is provided to
detect

the

intended

parking spot and reach a
position to begin back-
ing up from. Assistance
is provided from when
the vehicle begins back-
ing up until it reaches
the intended parking
spot.

P. 473

Exit parallel parking

assist mode

Exit parallel

parking

Assistance starts after
the vehicle has been
parallel parked. Assis-
tance is provided to
guide the vehicle from
the parking space to a
position from which it
can take off.

P. 480

Back-in parking

assist mode

(with forward guid-

ance function)

Back-in park-

ing

Assistance starts after
stopping the vehicle in
front of the intended
parking spot, and is pro-
vided for backing into a
parking space, including
guidance to reach a
position to begin back-
ing up from.

P. 485

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■

Parking Support Brake function while the Simple Advanced Parking
Guidance System is operating

While the Simple Advanced Parking Guidance System is operating, if the sys-
tem detects an obstacle that could result in a collision, hybrid system output
restriction control and brake control of the Parking Support Brake function are
operated, regardless of whether the Parking Support Brake function is on or
off. (



P. 456)

●

After the Parking Support Brake function operates, operation of the Simple
Advanced Parking Guidance System is temporarily stopped, and operation
of the Parking Support Brake function is indicated on the multi-information
display. (



P. 460)

●

When operation of the Simple Advanced Parking Guidance System is
stopped 3 times by operation of the Parking Support Brake function, the
Simple Advanced Parking Guidance System is canceled.

●

Once the Simple Advanced Parking Guidance System becomes available
after the Parking Support Brake function is operated, a message prompting
you to shift is displayed on the multi-information display. Operation of the
Simple Advanced Parking Guidance System can be resumed by shifting
according to the prompt on the multi-information display and pressing the
S-APGS switch (



P. 470) again.

■

Shifting while the Simple Advanced Parking Guidance System is operat-
ing

If the system determines that the driver intends to move forward or in reverse,
assistance continues even if the driver shifted before being prompted to do so
by the system. However, because driver operation differs from the guidance
provided by the system, the number of turning maneuvers may increase.

■

Customization

Settings (e.g. obstacle detection range) can be changed. (Customizable fea-
tures:



P. 753)