Toyota Prius (2024 year). Manual in english - page 9

257

4-5. Using the driving support systems

4

Dr

iv

ing

*

: If equipped



When the front camera 

detects a sign or information 

of a sign is available from the 

navigation system, the sign 

will be displayed on the dis-

play.



Multiple signs can be dis-

played.

Depending on the specifications of 

the vehicle, the number of dis-

played signs may be limited.

■

Operating conditions of sign 

display

Signs will be displayed when the fol-

lowing conditions are met:

●

The system has detected a sign

In the following situations, a dis-

played sign may stop being dis-

played:

●

When a new sign has not been 

detected for a certain distance

●

When the system determines that 

the road being driven on has 

changed, such as after a left or 

right turn

■

Situations in which the display 

function may not operate prop-

erly

In the following situations, the RSA 

system may not operate properly 

and may not detect signs or may 

display the incorrect sign. However, 

this does not indicate a malfunction.

●

When a sign is dirty, faded, tilted 

or bent

●

When the contrast of an electronic 

sign is low

●

When all or part of a sign is hidden 

by a tree, utility pole, etc.

●

When a sign is detected by the 

front camera for a short amount of 

time

●

When the driving state (turning, 

changing lanes, etc.) is judged 

incorrectly

RSA (Road Sign 

Assist)

*

The RSA system detects 

specific road signs using 

the front camera and/or nav-

igation system (when speed 

limit information is avail-

able) and warns the driver 

via displays and buzzers.

WARNING

■

For safe use

●

Driving safely is solely the 

responsibility of the driver. Pay 

careful attention to the sur-

rounding conditions in order to 

ensure safe driving.

●

Do not rely solely upon the 

RSA. The RSA assists the 

driver by providing road sign 

information, but it is not a 

replacement for the driver’s own 

vision and awareness. Driving 

safely is solely the responsibility 

of the driver. Pay careful atten-

tion to the surrounding condi-

tions in order to ensure safe 

driving.

■

Situations in which the RSA 

should not be used

When it is necessary to disable 

the system: 



P.215

■

Situations in which the sys-

tem may not operate properly

●

Situations in which the sensors 

may not operate properly: 



P.219

Display Function

258

4-5. Using the driving support systems

●

When a sign is immediately after a 
freeway junction or in an adjacent 
lane just before merging

●

When stickers are attached to the 
rear of a preceding vehicle

●

When a sign similar to a system 
compatible sign is detected as a 
system compatible sign

●

When a speed limit sign for a 
frontage road is within detection 
range of the front camera

●

When driving around a round-
about

●

When a sign intended for trucks, 
etc. is detected

●

When the navigation system map 
data is out of date

●

When the navigation system can-
not be used

In this case, the speed limit signs 
displayed on the multi-information 
display and navigation system dis-
play may differ.

In the following situations, the 
RSA system will output a warn-
ing to notify the driver.



If the vehicle speed exceeds 
the speed warning threshold 
of the speed limit sign dis-
played on the display, the 
sign display will be empha-
sized and a buzzer will sound.



When the RSA system 
detects a do not enter sign 
and determines that the vehi-
cle has entered a no-entry 
area, the do not enter sign 
displayed on the display will 
flash and a buzzer will sound.

■

Operating conditions of the 
notification functions

●

Excess speed notification function

This function will operate when the 
following condition is met:
• A speed limit road sign is recog-

nized by the system.

●

No entry notification function

This function will operate when all of 
the following conditions are met:
• More than one no entry road signs 

are recognized by the system 
simultaneously.

• The vehicle is passing between no 

entry road signs recognized by the 
system.



The following types of road 
signs can be displayed.

However, non-standard or recently 
introduced traffic signs may not be 
displayed.

Notification function

Types of road signs sup-
ported

Speed limit

Do Not Enter

No U-turn

No Turn On Red

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4-5. Using the driving support systems

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

Depending on the specifica-

tions of the vehicle, signs may 

be displayed overlapping.



The following settings of the 

RSA can be changed through 

customize settings. (



P.548)

Stop

Yield

Warning

Changing RSA settings

Dynamic radar cruise 

control

This dynamic radar cruise 

control detects the pres-

ence of vehicles ahead, 

determines the current vehi-

cle-to-vehicle distance, and 

operates to maintain a suit-

able distance from the vehi-

cle ahead. The desired 

vehicle-to-vehicle distance 

can be set by operating the 

vehicle-to-vehicle distance 

switch.
Use the dynamic radar 

cruise control only on high-

ways and expressways.

WARNING

■

For safe use

●

Driving safely is solely the 

responsibility of the driver. Do 

not overly rely on this system, 

and pay careful attention to the 

surrounding conditions in order 

to ensure safe driving.

●

The dynamic radar cruise con-

trol provides driving assistance 

to reduce the driver’s burden. 

However, there are limitations 

to the assistance provided.

Read the following items care-

fully. Do not overly rely on this 

system and always drive care-

fully.
Conditions under which the sys-

tem may not operate correctly: 



P.265

260

4-5. Using the driving support systems

WARNING

●

Set the speed appropriately 

according to the speed limit, 

traffic flow, road conditions, 

weather conditions, etc. The 

driver is responsible for confirm-

ing the set speed.

●

Even if the system is operating 

correctly, the condition of a pre-

ceding vehicle as recognized by 

the driver and detected by the 

system may differ. Therefore, it 

is necessary for the driver to 

pay attention, assess risks, and 

ensure safety. Over-reliance on 

this system to drive the vehicle 

safely may lead to an accident 

resulting in death or serious 

injury.

■

Precautions for the driving 

assist systems

Observe the following precau-

tions, as there are limitations to 

the assistance provided by the 

system. Over-reliance on this sys-

tem may lead to an accident 

resulting in death or serious 

injury.

●

Details of support provided for 

the driver’s vision

The dynamic radar cruise control 

is only intended to help the driver 

in determining the distance 

between the driver’s own vehicle 

and a designated preceding vehi-

cle. It is not a system which allows 

for careless or inattentive driving, 

and is not a system which assists 

in poor visibility conditions.
The driver must pay attention to 

their surroundings, even when the 

vehicle stops.

●

Details of support provided for 

the driver’s judgement

The dynamic radar cruise control 

determines whether the distance 

between the driver’s own vehicle 

and a designated preceding vehi-

cle is within a set range. It is not 

capable of making any other type 

of judgement. Therefore, it is 

absolutely necessary for the 

driver to remain vigilant and to 

determine whether or not there is 

a possibility of danger.

●

Details of support provided for 

the driver’s operation

The dynamic radar cruise control 

does not include functions which 

will prevent or avoid collisions 

with vehicles ahead of your vehi-

cle. 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 

safety.

■

Situations in which the 

dynamic radar cruise control 

should not be used

Do not use the dynamic radar 

cruise control in the following situ-

ations. As the system will not be 

able to provide appropriate con-

trol, using it may lead to an acci-

dent resulting in death or serious 

injury.

●

Roads where there are pedes-

trians, cyclists, etc.

●

When driving on a highway or 

expressway entrance or exit

●

When the approach warning 

sounds frequently

●

Situations in which the sensors 

may not operate properly: 



P.219

●

Situations in which the lane may 

not be detected: 



P.221

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4-5. Using the driving support systems

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Constant speed cruising
When there are no vehicles ahead

The vehicle drives at the speed set by the driver.

If the set vehicle speed is exceeded while driving down a hill, the set vehicle 
speed display will blink and a buzzer will sound.

Deceleration and follow-up cruising
When a preceding vehicle driving slower than the set vehicle 
speed is detected

When a vehicle is detected driving ahead of your vehicle, the vehicle auto-
matically decelerates and if a greater reduction in vehicle speed is neces-
sary, the brakes are applied (the stop lights will come on at this time). The 
vehicle is controlled to maintain the vehicle-to-vehicle distance set by the 
driver, in accordance with changes in the speed of the preceding vehicle. If 
vehicle deceleration is not sufficient and the vehicle approaches the vehicle 
ahead, the approach warning will sound.

Acceleration
When there are no longer any preceding vehicles driving slower 
than the set vehicle speed

The vehicle accelerates until the set vehicle speed is reached and then 
resumes constant speed cruising.

Starting off

Basic functions

A

B

C

D

262

4-5. Using the driving support systems

If a preceding vehicle stops, the vehicle will also stop (controlled 
stop). After the preceding vehicle starts off, pressing the “RES” 
switch or depressing the accelerator pedal will resume follow-up 
cruising (start off operation). If a start off operation is not performed, 
the controlled stop will continue.

■

Meter display

Multi-information display

Set vehicle speed

Indicators

■

Switches

Driving assist mode select 
switch

Driving assist switch

“+” switch/“RES” switch

“-” switch

Cancel switch

Vehicle-to-vehicle distance 
switch

■

Setting the vehicle speed

1

Press the driving assist mode 
select switch to select 
dynamic radar cruise control.

The dynamic radar cruise control 
indicator will illuminate.

2

Using the accelerator pedal, 
accelerate or decelerate to 
the desired vehicle speed 
(approximately 20 mph [30 
km/h] or more), and press the 
driving assist switch to set 
the set vehicle speed.

The set vehicle speed will be dis-
played on the multi-information dis-
play.

The vehicle speed at the moment 
the switch is released will be the set 

System components

A

B

C

B

C

F

D

E

A

B

C

D

E

Using the dynamic radar 
cruise control

F

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4-5. Using the driving support systems

4

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iv

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vehicle speed.

■

Adjusting the set vehicle 
speed



Adjusting the set vehicle 
speed using the switches

To change the set vehicle 
speed, press the “+” switch or “-” 
switch until the desired speed is 
displayed.

1

Increase set vehicle speed

2

Decrease set vehicle speed

Short press adjustment: Press the 
switch

Long press adjustment: Press and 
hold the switch until the desired set 
vehicle speed is reached.

The set vehicle speed will 
increase or decrease as follows:



For the U.S. mainland and 
Hawaii

Short press adjustment: 

Increases or decreases by 1 
mph (1.6 km/h) each time the 
switch is pressed

Long press adjustment: 
Increases or decreases in 1 
mph (1.6 km/h) increments con-
tinuously while the switch is 
pressed and held



Except for the U.S. mainland 
and Hawaii

Short press adjustment: By 0.6 
mph (1 km/h) or 1.6 km/h (1 
mph) each time the switch is 
pressed

Long press adjustment: 
Increases or decreases in 3.1 
mph (5 km/h) or 8 km/h (5 mph) 
increments continuously while 
the switch is pressed and held



Increasing the set vehicle 
speed using the accelerator 
pedal

1

Depress the accelerator 
pedal to accelerate the vehi-
cle to the desired vehicle 
speed.

2

Press the “+” switch.

■

Canceling/resuming control

1

Press the cancel switch or 
driving assist switch to cancel 
control.

Control will also be canceled if the 
brake pedal is depressed.
(If the vehicle has been stopped by 
system control, depressing the 

264

4-5. Using the driving support systems

brake pedal will not cancel control.)

2

Press the “RES” switch to 
resume control.

■

Changing the vehicle-to-
vehicle distance

Each time the switch is pressed, 
the vehicle-to-vehicle distance 
setting will change as follows:

If a preceding vehicle is 
detected, the preceding vehicle 

mark 

 will be displayed.

The actual vehicle-to-vehicle 
distance varies in accordance 
with the vehicle speed. Also, 
when the vehicle is stopped by 
system control, it will be stopped 
at a certain distance from the 
preceding vehicle, depending on 
the situation, regardless of the 
setting.

■

Operating conditions

●

The D shift position is selected.

●

The desired set speed can be set 
when the vehicle speed is approx-
imately 20 mph (30 km/h) or more.

• If the vehicle speed is set while 

driving at below approximately 20 
mph (30 km/h), the set vehicle 
speed will be approximately 20 
mph (30 km/h).

• If the vehicle speed is set while 

driving at a speed that exceeds 
the system’s upper limit, the set 
vehicle speed will be the system’s 
upper limit.

■

Accelerating after setting the 
vehicle speed

As with normal driving, acceleration 
can be performed by depressing the 
accelerator pedal. After accelerat-
ing, the vehicle will return to the set 
vehicle speed. However, while in 
vehicle-to-vehicle distance control 
mode, the vehicle speed may 
decrease to below the set vehicle 
speed in order to maintain the dis-
tance from the preceding vehicle.

Illus-

tration 

Num-

ber

Vehicle-

to-vehi-

cle dis-

tance

Approximate 

Distance (Vehi-

cle Speed: 60 

mph [100 km/h])

1

Extra 

long

Approximately 

200 ft. (60 m)

2

Long

Approximately 

145 ft. (45 m)

A

3

Medium

Approximately 

100 ft. (30 m)

4

Short

Approximately 

85 ft. (25 m)

Illus-

tration 

Num-

ber

Vehicle-

to-vehi-

cle dis-

tance

Approximate 

Distance (Vehi-

cle Speed: 60 

mph [100 km/h])

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4-5. Using the driving support systems

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■

When the vehicle is stopped by 
system control during follow-up 
cruising

●

When the “RES” switch is pressed 
while the vehicle is stopped by 
system control, if the preceding 
vehicle starts off within approxi-
mately 3 seconds, follow-up cruis-
ing will resume.

●

If the preceding vehicle starts off 
within approximately 3 seconds of 
the vehicle being stopped by sys-
tem control, follow-up cruising will 
resume.

■

Automatic cancellation of vehi-
cle-to-vehicle distance control 
mode

In the following situations, vehicle-
to-vehicle distance control mode will 
be canceled automatically:

●

When the brake control or output 
restriction control of a driving sup-
port system operates
(For example: Pre-Collision Sys-
tem, drive-start control)

●

When the parking brake has been 
operated

●

When the vehicle is stopped by 
system control on a steep incline

●

When any of the following are 
detected while the vehicle is 
stopped by system control:

• The driver’s seat belt is unfas-

tened

• The driver’s door is opened
• Approximately 3 minutes have 

elapsed since the vehicle was 
stopped

The parking brake may be actived 
automatically.

●

Situations in which some or all of 
the functions of the system cannot 
operate: 



P.221

■

Dynamic radar cruise control 
system warning messages and 
buzzers

For safe use: 



P.215

■

Preceding vehicles that the sen-
sor may not detect correctly

In the following situations, depend-
ing on the conditions, if the system 
cannot provide sufficient decelera-
tion or acceleration is necessary, 
operate the brake pedal or accelera-
tor pedal.

As the sensor may not be able to 
correctly detect these types of vehi-
cles, the approach warning 
(



P.265) may not operate.

●

When a vehicle cuts in front of 
your vehicle or changes lanes 
away from your vehicle extremely 
slowly or quickly

●

When changing lanes

●

When a preceding vehicle is driv-
ing at a low speed

●

When a vehicle is stopped in the 
same lane as the vehicle

●

When a motorcycle is traveling in 
the same lane as the vehicle

■

Conditions under which the 
system may not operate cor-
rectly

In the following situations, operate 
the brake pedal (or accelerator 
pedal, depending on the situation) 
as necessary.

As the sensor may not be able to 
correctly detect a vehicle, the sys-
tem may not operate properly.

●

When a preceding vehicle brakes 
suddenly

●

When changing lanes at low 
speeds, such as in a traffic jam

In situations where the vehicle 
approaches a preceding vehicle 
and the system cannot provide 
sufficient deceleration, such as 
if a vehicle cuts in front of the 
vehicle, a warning display will 

Approach warning

266

4-5. Using the driving support systems

flash and a buzzer will sound to 
alert the driver. Depress the 
brake pedal to ensure appropri-
ate vehicle-to-vehicle distance.

■

Warnings may not occur 
when

In the following situations, the 
warning may not operate even 
though the vehicle-to-vehicle 
distance is short.



When the preceding vehicle is 
traveling at the same speed 
or faster than your vehicle



When the preceding vehicle is 
traveling at an extremely low 
speed



Immediately after the vehicle 
speed has been set



When the accelerator pedal is 
depressed

When a curve is detected, the 
vehicle speed will begin being 
reduced. When the curve ends, 
the vehicle speed reduction will 
end.

Depending on the situation, the 
vehicle speed will then return to the 
set vehicle speed.

In situations where vehicle-to-vehi-
cle distance control needs to oper-
ate, such as when a preceding 
vehicle cuts in front of your vehicle, 
the curve speed reduction function 
will be canceled.

■

Situations in which the curve 
speed reduction function may 
not operate

In situations such as the following, 
the curve speed reduction function 
may not operate:

●

When the vehicle is being driven 
around a gentle curve

●

When the accelerator pedal is 
being depressed

●

When the vehicle is being driven 
around an extremely short curve

If your vehicle is being driven at 
approximately 50 mph (80 km/h) 
or more and a lane change to 
the passing lane is performed, 
when the turn signal lever is 
operated and the lane is 
changed, the vehicle will accel-
erate up to the set speed to 
assist in overtaking.

The system’s recognition of 
which lane is the passing lane 
may be based solely on the 
location of the steering wheel in 
the vehicle (left-hand drive/right-
hand drive). If the vehicle is 
driven in a location where the 
passing lane is on the opposite 
side of that where the vehicle 

Curve speed reduction 
function

Support for lane change

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4-5. Using the driving support systems

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was originally sold, the vehicle 
may accelerate when the turn 
signal lever is operated away 
from the passing lane. (e.g. The 
vehicle was manufactured for a 
right-hand traffic location, but is 
being driven in a left-hand traffic 
location. The vehicle may accel-
erate when the turn signal lever 
is operated to the right.)

If your vehicle is being driven at 
approximately 50 mph (80 km/h) 
or more and the lane is changed 
to that with a vehicle traveling 

slower than your vehicle, when 
the turn signal lever is operated 
the vehicle will gradually decel-
erate to assist in changing 
lanes.

The settings of Dynamic radar 
cruise control can be changed 
through customize settings. 
(



P.549)

The operating state of Dynamic radar cruise control is indicated.

Changing Dynamic radar 
cruise control settings

Display and system operation state

Indicator

Multi-information display

Situation

White

Vehicle-to-vehicle 
distance setting: 
Gray

Dynamic 
radar cruise 
control being 
OFF

Green

Vehicle-to-vehicle 
distance setting: 
Blue

Set vehicle speed: 
Green

Constant 
speed cruis-
ing

Green

Vehicle-to-vehicle 
distance setting: 
Blue

Set vehicle speed: 
Green

Preceding vehicle: 
White

Follow-up 
cruising

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4-5. Using the driving support systems

Green

Vehicle-to-vehicle 
distance setting: 
Orange flashing

Set vehicle speed: 
Green

Preceding vehicle: 
Orange flashing

Approach 
warning

Green

Vehicle-to-vehicle 
distance setting: 
Gray

Set vehicle speed: 
White

Preceding vehicle: 
Gray

Accelerating 
with the 
accelerator 
pedal

Green

Set vehicle speed: 
Green in reverse 
display

Set vehicle 
speed being 
exceeded

Green

Vehicle-to-vehicle 
distance setting: 
Gray

Set vehicle speed: 
White

Preceding vehicle: 
Gray

Vehicle in 
controlled 
stop

Indicator

Multi-information display

Situation

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■

Meter display

Set vehicle speed
Cruise control indicator

■

Switches

Driving assist mode select 

switch
Driving assist switch
“+” switch / “RES” switch
“-” switch
Cancel switch

Cruise control

The vehicle can be driven at 

a set speed even if the 

accelerator pedal is not 

depressed.
Use the cruise control only 

on highways and express-

ways.

WARNING

■

For safe use

●

Driving safely is solely the 

responsibility of the driver. 

Therefore, do not overly rely on 

this system. The driver is solely 

responsible for paying attention 

to the vehicle’s surroundings 

and driving safely.

●

Set the speed appropriately 

according to the speed limit, 

traffic flow, road conditions, 

weather conditions, etc. The 

driver is responsible for confirm-

ing the set speed.

■

Situations in which cruise 

control should not be used

Do not use the cruise control in 

the following situations. As the 

system will not be able to provide 

appropriate control, using it may 

lead to an accident resulting in 

death or serious injury.

●

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.

●

When it is necessary to disable 

the system: 



P.215

System Components

A

B

A

B

C

D

E

270

4-5. Using the driving support systems

■

Setting the vehicle speed

1

Press the driving assist mode 
select switch to select cruise 
control.

The cruise control indicator will illu-
minate.

2

Using the accelerator pedal, 
accelerate to the desired 
vehicle speed (approxi-
mately 20 mph [30 km/h] or 
more), and press the driving 
assist switch to set the set 
vehicle speed.

The vehicle speed at the moment 
the switch is released will be the set 
vehicle speed.

■

Adjusting the set speed



Adjusting the set vehicle 
speed using the switches

To change the set vehicle speed, 
press the “+” or “-” switch until the 

desired speed is displayed.

1

Increase set vehicle speed

2

Decrease set vehicle speed

The set vehicle speed will increase 
or decrease as follows:

Fine adjustment: By 1 mph (1.6 
km/h) or 1 km/h (0.6 mph) each 
time the switch is pressed

Large adjustment: Increases con-
tinuously while the switch is 
pressed and held



Increasing the set vehicle 
speed using the accelerator 
pedal

1

Depress the accelerator 
pedal to accelerate the vehi-
cle to the desired vehicle 
speed.

2

Press the “+” switch.

■

Canceling/resuming control

1

Press the cancel switch or 
driving assist switch to cancel 
control.

Control will also be canceled if the 

Using the cruise control

271

4-5. Using the driving support systems

4

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iv

ing

brake pedal is depressed.

2

Press the “RES” switch to 
resume control.

■

Automatic cancellation of the 
cruise control

In the following situations, the cruise 

control will be canceled automati-
cally:

●

When the vehicle speed drops 
approximately 10 mph (16 km/h) 
or more below the set vehicle 
speed

●

When the vehicle speed drops 
below approximately 20 mph (30 
km/h)

●

When the brake control or output 
restriction control of a driving sup-
port system operates (For exam-
ple: PCS, drive-start control)

●

When the parking brake has been 
operated

●

Situations in which some or all of 
the functions of the system cannot 
operate: 



P.221

The operating state of cruise control is indicated.

Display and system operation state

Indicator

Multi-information display

Situation

White

Blank

Cruise con-
trol being 
OFF

Green

Set vehicle speed: 
Green

Constant 
speed cruis-
ing

Green

Set vehicle speed: 
Green in reverse 
display

Set vehicle 
speed being 
exceeded

272

4-5. Using the driving support systems

*

: If equipped

Emergency Driving 

Stop System

*

The emergency driving stop 

system is a system which 

automatically decelerates 

and stops the vehicle within 

its lane if the driver 

becomes unable to continue 

driving the vehicle, such as 

if they have suffered a medi-

cal emergency, etc.
During LTA (Lane Tracing 

Assist) control, if the sys-

tem does not detect driving 

operations, such as if the 

driver is not holding the 

steering wheel, and deter-

mines the driver is not 

responsive, the vehicle will 

be decelerated and stopped 

within its current lane to 

help avoid a collision or 

reduce the impact of a colli-

sion.

WARNING

■

For safe use

●

Driving safely is solely the 

responsibility of the driver. Pay 

careful attention to the sur-

rounding conditions in order to 

ensure safe driving. The emer-

gency driving stop system is 

designed to provide support in 

an emergency where it is diffi-

cult for the driver to continue 

driving, such as if they have had 

a medical emergency. It is not 

designed to support driving 

while drowsy or in poor physical 

health, or inattentive driving.

●

Although the emergency driv-

ing stop system is designed to 

decelerate the vehicle within its 

lane to help avoid or help 

reduce the impact of a collision 

if the system determines that it 

is difficult for the driver to con-

tinue driving, its effectiveness 

may change according to vari-

ous conditions. Therefore, it 

may not always be able to 

achieve the same level of per-

formance. Also, if the operating 

conditions are not met, this 

function will not operate.

●

After the emergency driving 

stop system operates, if driving 

becomes possible again, imme-

diately begin driving again or, if 

necessary, park the vehicle on 

the shoulder of the road and set 

a warning reflector and flare to 

warn other drivers of your 

stopped vehicle.

●

After this system operates, pas-

sengers should attend to the 

driver as necessary and take 

appropriate hazard prevention 

measures, such as moving to a 

place where safety can be 

ensured, such as the shoulder 

of the road or behind a guard-

rail.

273

4-5. Using the driving support systems

4

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iv

ing

Operation of this system is sep-

arated into 4 control states. 

Through control state “warning 

phase 1” and “warning phase 2”, 

the system determines if the 

driver is aware and responsive 

while outputting a warning and 

controlling the vehicle speed. If 

the system determines the 

driver is not responsive, it will 

operate in control state “deceler-

ation stop phase” and “stop hold 

phase” and decelerate and stop 

the vehicle. It will then operate 

continuously in “stop hold 

phase”.

■

Operating conditions

This system operates when all of 

the following conditions are met:

●

When the LTA is on

●

When the vehicle speed is 

approximately 30 mph (50 km/h) 

or more

■

Operation cancelation condi-

tions

In the following situations, system 

operation will be canceled:

●

When LTA control has been can-

celed (the LTA switch has been 

pressed, etc.)

●

When the dynamic radar cruise 

control has been canceled

●

When driver operations are 

detected (the steering wheel is 

held, the brake pedal, accelerator 

pedal, parking brake, emergency 

flasher switch, or turn signal lever 

is operated)

●

When the driving assist switch is 

pressed while in the stop and hold 

phase

●

When the power switch has been 

turned from ON mode to off

●

Situations in which some or all of 

the functions of the system cannot 

operate: 



P.221

■

LTA control when operation is 

canceled

When emergency driving stop sys-

tem operation is canceled, LTA con-

trol may also be canceled.

If driving operations are not 

detected after the hands off 

steering wheel warning oper-

ates, a buzzer will sound inter-

mittently and a message will be 

displayed to warn the driver, and 

the system will judge if the driver 

is responsive or not. If driving 

operations, such as holding the 

steering wheel, are not per-

formed within a certain amount 

of time, the system will enter 

warning phase 2.

After entering warning phase 2, 

WARNING

●

This system detects the condi-

tion of the driver through the 

operation of the steering wheel. 

This system may operate if the 

driver is aware but intentionally 

and continuously does not oper-

ate the vehicle. Also, the system 

may not operate if it cannot 

determine that the driver is not 

responsive, such as if they are 

leaning on the steering wheel.

Summary of the system

Warning phase 1

Warning phase 2

274

4-5. Using the driving support systems

a buzzer will sound in short 
intervals and a message will be 
displayed to warn the driver, and 
the vehicle will slowly deceler-
ate. If driving operations, such 
as holding the steering wheel, 
are not performed within a cer-
tain amount of time, the system 
will determine that the driver is 
not responsive and enter the 
deceleration stop phase.

The audio system will be muted 
until the driver becomes respon-
sive.

When the vehicle is decelerat-
ing, the brake lights may illumi-
nate, depending on the road 
conditions, etc.

After entering the deceleration 
stop phase, a buzzer will sound 
continuously and a message will 
be displayed to warn the driver, 
and the vehicle will slowly decel-
erate and stop. After the vehicle 
stops, the system will enter the 
stop and hold phase.

After the vehicle is stopped, the 
parking brake will be applied 
automatically. After entering the 
stop and hold phase, the buzzer 
will continue sounding continu-
ously and the emergency flash-
ers (hazard lights) will flash to 
warn other drivers of the emer-

gency.

■

Restricted functions after the 
operation is canceled

After shifting to the deceleration 
stop phase, the following functions 
will not be available until the hybrid 
system is re-started even though 
the emergency driving stop system 
is canceled:

●

LTA

●

LCA (if equipped)

Deceleration stop phase

Stop hold phase

275

4-5. Using the driving support systems

4

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iv

ing

*

: If equipped

Meter control switches

Turning the Blind Spot Monitor 

on/off.

Outside rear view mirror indi-

cators

When a vehicle is detected in a 

blind spot of the outside rear view 

mirrors or approaching rapidly from 

behind into a blind spot, the outside 

rear view mirror indicator on the 

detected side will illuminate. If the 

turn signal lever is operated toward 

the detected side, the outside rear 

view mirror indicator will flash and a 

buzzer will sound.

Driving assist information 

indicator

Illuminates when the Blind Spot 

Monitor is turned off. At this time, a 

message will be displayed on the 

multi-information display.

■

Outside rear view mirror indica-

tor visibility

In strong sunlight, the outside rear 

view mirror indicator may be difficult 

to see.

■

Buzzer

If the volume setting of the audio 

system is high or the surrounding 

area is loud, it may be difficult to 

BSM (Blind Spot Moni-

tor)

*

The Blind Spot Monitor is a 

system that uses rear side 

radar sensors installed on 

the inner side of the rear 

bumper on the left and right 

side to assist the driver in 

confirming safety when 

changing lanes.

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 is a sup-

plementary function which alerts 

the driver that a vehicle is in a 

blind spot of the outside rear 

view mirrors or is approaching 

rapidly from behind into a blind 

spot. Do not overly rely on the 

Blind Spot Monitor. As the func-

tion cannot judge if it is safe to 

change lanes, over reliance 

could lead to an accident result-

ing in death or serious injury. As 

the system may not function 

correctly under certain condi-

tions, the driver’s own visual 

confirmation of safety is neces-

sary.

System components

A

B

C

276

4-5. Using the driving support systems

hear the buzzer.

■

Customization

Some functions can be customized. 

(



P.540)

The Blind Spot Monitor can be 
enabled/disabled on   of the 

multi-information display. 

(



P.540)

When the Blind Spot Monitor is 

off, the driving assist information 

indicator (



P.84) will illuminate 

WARNING

■

To ensure the system can 

operate properly

Blind Spot Monitor sensors are 

installed behind the left and right 

sides of the rear bumper respec-

tively. Observe the following to 

ensure the Blind Spot Monitor can 

operate correctly.

●

Keep the sensors and the sur-

rounding areas on the rear 

bumper clean at all times. 

If a sensor or its surrounding 

area on the rear bumper is dirty 

or covered with snow, the Blind 

Spot Monitor may not operate 

and a warning message will be 

displayed. In this situation, clear 

off the dirt or snow and drive the 

vehicle with the operation condi-

tions of the BSM function 

(



P.278) satisfied for approxi-

mately 10 minutes. If the warn-

ing message does not 

disappear, have the vehicle 

inspected by your Toyota 

dealer.

●

Do not attach accessories, 

stickers (including transparent 

stickers), aluminum tape, etc. to 

a sensor or its surrounding area 

on the rear bumper.

●

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 sen-

sor is scratched or dented, or 

part of them has become dis-

connected.

●

Do not disassemble the sensor.

●

Do not modify the sensor or sur-

rounding area on the rear 

bumper.

●

If a sensor or the rear bumper 

needs to be removed/installed 

or replaced, contact your 

Toyota dealer.

●

The sensors are likely to be 

affected by paint on the rear 

bumper. If the rear bumper is 

not repaired correctly, the Blind 

Spot Monitor may not operate 

with a warning message dis-

played. If any paint repair is 

needed, contact your Toyota 

dealer.

Turning the Blind Spot 

Monitor on/off

277

4-5. Using the driving support systems

4

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iv

ing

and a message will be displayed 
on the multi-information display.

Each time the power switch is 
turned to ON, the Blind Spot 
Monitor is enabled.

■

Objects that can be detected while driving

The Blind Spot Monitor uses rear side radar sensors to detect the 
following vehicles traveling in adjacent lanes and advises the driver 
of the presence of such vehicles via the indicators on the outside 
rear view mirrors.

Vehicles that are traveling in areas that are not visible using the 
outside rear view mirrors (the blind spots)

Vehicles that are approaching rapidly from behind in areas that 
are not visible using the outside rear view mirrors (the blind spots)

■

Detection range while driving

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

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of 

the vehicle

*1

Blind Spot Monitor operation

A

B

A

278

4-5. Using the driving support systems

Approximately 3.3 ft. (1 m) forward of the rear bumper

*2

Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 230 ft. (70 m) from the rear 

bumper

*3

*1

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side 

of the vehicle cannot be detected.

*2

: While the vehicle is to being overtaken, up to approximately 9.8 ft. (3 m) 

forward of the rear bumper will be detected.

*3

: The greater the difference in speed between your vehicle and the 

detected vehicle is, the farther away the vehicle will be detected, causing 
the outside rear view mirror indicator to illuminate or flash.

■

The Blind Spot Monitor linked function

The LDA (Lane Departure Alert) has a function that uses information 
of detected vehicles driving in an adjacent lane. For details about the 
function and its operating conditions, P.242

■

The Blind Spot Monitor is oper-
ational when

The Blind Spot Monitor is opera-
tional when all of the following con-
ditions are met:

●

The power switch is in ON.

●

The Blind Spot Monitor is on.

●

The shift position is in a position 
other than R.

●

The vehicle speed is approxi-
mately 7 mph (10 km/h) or more.

■

The Blind Spot Monitor will 
detect a vehicle when

The Blind Spot Monitor will detect a 
vehicle present in the detection area 
in the following situations:

●

A vehicle in an adjacent lane over-
takes your vehicle.

●

You overtake a vehicle in an adja-
cent lane slowly.

●

Another vehicle enters the detec-
tion area when it changes lanes.

■

Situations in which the Blind 
Spot Monitor cannot detect 
vehicles

The Blind Spot Monitor cannot 
detect the following vehicles and 
other 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 traveling 2 lanes away 
from your vehicle

*

●

Vehicles which are being over-
taken rapidly by your vehicle.

*

*

: Depending on the conditions, 

detection of a vehicle and/or 
object may occur.

B

C

D

279

4-5. Using the driving support systems

4

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iv

ing

■

Situations in which the buzzer 
does not sound

In the following situations, the out-
side rear view mirror indicator 
flashes but the buzzer does not 
sound even when the turn signal 
lever is operated.

●

When another vehicle is detected 
while the turn signal lever is being 
operated

●

When your vehicle overtakes a 
vehicle in an adjacent lane with a 
large speed difference

*

*

: Depending on the conditions, the 

buzzer may sound.

■

Conditions under which the 
system may not function cor-
rectly

●

The Blind Spot Monitor may not 
detect vehicles correctly in the fol-
lowing situations:

• When the sensor is misaligned 

due to a strong impact to the sen-
sor or its surrounding area

• When mud, snow, ice, a sticker, 

etc. is covering the sensor or sur-
rounding 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 differ-

ence in speed between your vehi-
cle 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 con-

secutive 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 adja-
cent lane is far away from your 
vehicle

• When an accessory (such as a 

bicycle carrier) is installed to the 
rear of the vehicle

• When there is a significant differ-

ence in height between your vehi-
cle and the vehicle that enters the 
detection area

• Immediately after the Blind Spot 

Monitor is turned on

• When towing with the vehicle

●

Instances of the Blind Spot Moni-
tor 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 sen-
sor 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 con-

secutive 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 an accessory (such as a 

bicycle carrier) is installed to the 
rear of the vehicle

• When towing with the vehicle

280

4-5. Using the driving support systems

*

: If equipped

Multi-information display

Turning the safe exit assist on/off.
If collision with a door is likely and 

the door is opened, the door will be 

displayed on the multi-information 

display. Also, if a door is opened 

when an outside rear view mirror 

indicator is illuminated, a buzzer 

will sound as a warning.

Outside rear view mirror indi-

cators

When a vehicle or bicycle which 

may collide with a door (other than 

the back door) when opened is 

detected, the outside rear view mir-

ror indicator on the detected side 

will illuminate. If the door on the 

detected side is opened, the out-

side rear view mirror indicator will 

blink.

Driving assist information 

indicator

Illuminates when the safe exit 

assist is turned off. At this time, a 

message will be displayed on the 

multi-information display.

Speakers (voice notifica-
tions

*

)

When the outside rear view mirror 

indicator blinks, the driver is 

Safe Exit Assist

*

The safe exit assist is a sys-

tem that uses rear side 

radar sensors installed on 

the inner side of the rear 

bumper to help occupants 

judge if an approaching 

vehicle or bicycle may col-

lide with a door when exit-

ing, to help reduce the 

possibility of a collision.

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 safe exit assist is a supple-

mentary system that, when the 

vehicle is stopped, informs 

occupants of the existence of 

approaching vehicles and bicy-

cles. As this system alone can-

not be used to judge safety, 

over-reliance on this system 

may lead to an accident result-

ing in death or serious injury.

In certain situations, this system 

may not function to its fullest 

extent. Therefore it is necessary 

for the occupants to visually 

check for safety directly and using 

the mirrors.

System components

A

B

C

D

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4-5. Using the driving support systems

4

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iv

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informed through voice guidance 

that the system has operated. After 

the notification through voice guid-

ance is made, no more voice guid-

ance notifications will be made 

again until the door is fully closed.

*

: If equipped

■

Outside rear view mirror indica-

tor visibility

In strong sunlight, the outside rear 

view mirror indicator may be difficult 

to see.

■

Buzzer

If the volume setting of the audio 

system is high or the surrounding 

area is loud, it may be difficult to 

hear the buzzer.

■

Voice notifications (if equipped)

In the following situations, voice 

notifications will not be output:

●

When it is estimated that no occu-

pants are on board

*

●

After opening a door and entering 

the vehicle, until the hybrid system 

is started

●

When 3 minutes or more have 

elapsed since the hybrid system 

was stopped

●

When the language setting of the 

Multimedia Display has been set 

to a language that does not sup-

port voice notifications

●

When all of the doors have been 

locked from outside the vehicle

●

When a door remains open for 1 

minute or more after the hybrid 

system is stopped

●

When the ACC mode (



P.540) 

has been enabled through a cus-

tomize setting on the Multimedia 

Display and the hybrid system has 

been stopped

●

When the parking assist volume 

setting on the Multimedia Display 

has been set to off

*

: For each seating position, judg-

ment is made based on the open-

ing and closing of a door, before 

driving for ingress and after driv-

ing for egress.

■

Customization

Some functions can be customized. 

(



P.540)

The safe exit assist can be 
enabled/disabled on   of the 

multi-information display. 

(



P.540)

When the safe exit assist is off, 

the driving assist information 

indicator will illuminate and a 

message will be displayed on 

the multi-information display.
Each time the power switch is 

turned to ON, the safe exit 

assist is enabled.

■

Objects that can be detected by the safe exit assist

When the safe exit assist detects the following vehicles or bicycles 

WARNING

■

To ensure the system can 

operate properly



P.276

Turning the safe exit 

assist system ON/OFF

Safe exit assist operation

282

4-5. Using the driving support systems

behind your vehicle using a rear side radar sensor, the occupants of 
the vehicle are informed through an outside rear view mirror indica-
tor, buzzer, multi-information display, and voice notification (if 
equipped).

Vehicle or bicycle which has a high possibility of colliding with a 
door (other than the back door) when opened

■

The safe exit assist detection areas

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

Approximately 145 ft. (45 m) rearward from the front door

*

*

: The faster a vehicle or bicycle is approaching, the distance at which an 

outside rear view mirror indicator will illuminate or blink will become fur-
ther.

■

The safe exit assist is opera-
tional when

The safe exit assist is operational 
when all of the following conditions 
are met:

●

When the power switch is ON, 
less than 3 minutes have elapsed 
since the hybrid system was off, or 
less than 3 minutes have elapsed 
since a door was opened and 

someone has entered the vehicle 
(the time which operation is possi-
ble may be extended if a door is 
opened and closed)

●

Safe exit assist is on

●

The vehicle is stopped.

●

The shift position is in a position 
other than R.

A

A

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4

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■

The safe exit assist will detect a 
vehicle when

The safe exit assist will detect a 
vehicle present in the detection area 
in the following situations:

●

When the vehicle is stopped and a 
vehicle or bicycle, which is travel-
ing parallel to the vehicle, is 
approaching within the area that a 
door opens (other than the back 
door)

■

Conditions under which the 
system will not detect a vehicle

●

Safe exit assist does not detect 
the following objects, vehicles, 
and bicycles:

• Vehicles or bicycles which are 

approaching slowly

*

• Vehicles or bicycles which are 

determined to have a low possibil-
ity of colliding with a door (other 
than the back door) when opened

*

• Vehicles or bicycles which are 

approaching from directly behind

*

• Vehicles or bicycles which are 

approaching from the front

*

• Guardrails, walls, signs, parked 

vehicles, and other stationary 
objects

*

• Pedestrians, animals, etc.

*

*

: Depending on the conditions, 

detection of a vehicle and/or 
object may occur.

●

In situations such as the following, 
safe exit assist will not operate:

• When 3 minutes or more have 

elapsed since the hybrid system 
off (the time which operation is 
possible may be extended if a 
door is opened and closed)

• When your vehicle is not com-

pletely stopped

■

Conditions under which the 
system may not function cor-
rectly

●

The safe exit assist may not 
detect vehicles correctly in the fol-
lowing situations:

• When the sensor is misaligned 

due to a strong impact to the sen-
sor or its surrounding area

• When mud, snow, ice, a sticker, 

etc. is covering the sensor or sur-
rounding area on the rear bumper

• When the vehicle is stopped on a 

wet road surface, such as in a 
puddle, while in inclement 
weather, such as heavy rain, 
snow, fog, etc.

• When a vehicle or bicycle 

approaches from behind a nearby 
parked vehicle

• When an approaching vehicle or 

bicycle suddenly changes direc-
tion

• Immediately after a vehicle or 

bicycle starts moving

• When the back door is open
• When a bicycle carrier, ramp, or 

other accessory is installed to the 
back of the vehicle

• When a parked vehicle, wall, sign, 

person or other stationary object 
is behind the vehicle

• When the vehicle is stopped at an 

angle to the road

• When a vehicle is traveling near 

an approaching vehicle or bicycle

• When an approaching vehicle or 

bicycle is traveling along a station-
ary object, such a wall or sign

• When a vehicle or bicycle is 

approaching at high speed

• When towing with the vehicle
• When stopped on a steep slope
• When stopped on a curve or at the 

exit of a curve

●

Instances of the safe exit assist 
unnecessarily detecting a vehicle 
and/or object may increase in the 
following situations:

• When the sensor is misaligned 

due to a strong impact to the sen-
sor or its surrounding area

• When a vehicle or bicycle 

approaches from behind your 
vehicle at an angle

• When the vehicle is stopped at an 

angle to the road

• When a vehicle or bicycle 

approaches from behind a parked 
vehicle at an angle

284

4-5. Using the driving support systems

• When a parked vehicle, wall, sign, 

person or other stationary object 
is behind the vehicle

• When an approaching vehicle or 

bicycle suddenly changes direc-
tion

• When an approaching vehicle or 

bicycle is traveling along a station-
ary object, such a wall or sign

• When the back door is open
• When a bicycle carrier, ramp, or 

other accessory is installed to the 
back of the vehicle

• When a vehicle or bicycle is 

approaching at high speed

• When towing with the vehicle
• When stopped on a steep slope
• When stopped on a curve or at the 

exit of a curve

■

Types of sensors

Front corner sensors

Front center sensors

Rear corner sensors

Rear center sensors

Front side sensors

*

Rear side sensors

*

*

: Vehicles with Advanced Park

■

Display

When the sensors detect an 
object, such as a wall, a graphic 
is shown on the Multimedia Dis-

Intuitive parking 

assist

The distance from your 
vehicle to objects, such as a 
wall, when parallel parking 
or maneuvering into a 
garage is measured by the 
sensors and communicated 
via the Multimedia Display 
and a buzzer. Always check 
the surrounding area when 
using this system.

System components

A

B

C

D

E

F

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4-5. Using the driving support systems

4

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play depending on the position 

and distance to the object.
Display example:

Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection
Front side sensor detection

*

Rear side sensor detection

*

*

: Vehicles with Advanced Park

The intuitive parking assist can 
be enabled/disabled on   of 

the multi-information display. 

(



P.96)

When the intuitive parking assist 

function is disabled, the intuitive 

parking assist OFF indicator 

(



P.84) illuminates.

To re-enable the system, select 

 on the multi-information dis-

play, select the intuitive parking 

assist and turn it on. If the sys-

tem is disabled, it will remain off 

even if the power switch is 

turned to ON after the power 

switch has been turned off.

Turning the intuitive park-

ing assist on/off

A

B

C

D

E

F

WARNING

■

Cautions regarding the use of 

the system

There is a limit to the degree of 

recognition accuracy and control 

performance that this system can 

provide, do not overly rely on this 

system. The driver is always 

responsible for paying attention to 

the vehicle’s surroundings and 

driving safely.

■

To ensure the system can 

operate properly

Make sure to observe the follow-

ing precautions. The system may 

not operate properly and may 

lead to an unexpected accident. 

When these precautions cannot 

be observed, turn the system off.

●

Do not damage the sensors, 

and always keep them clean.

●

Do not attach a sticker or install 

an electronic component, such 

as a backlit license plate (espe-

cially fluorescent type), fog 

lights, fender pole or wireless 

antenna near a radar sensor.

●

Do not subject the surrounding 

area of the sensor to a strong 

impact. If subjected to an 

impact, have the vehicle 

inspected by your Toyota 

dealer. If the front or rear 

bumper needs to be 

removed/installed or replaced, 

contact your Toyota dealer.

●

Do not modify, disassemble or 

paint the sensors.

●

Do not attach a license plate 

cover.

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4-5. Using the driving support systems

■

The system can be operated 

when

●

The power switch is in ON.

●

The intuitive parking assist func-

tion is on.

●

The vehicle speed is less than 

about 6 mph (10 km/h).

●

The shift position is in a position 

other than P.

■

If “Parking Assist Unavailable 

Sensor Blocked” is displayed 

on the multi-information display

A sensor may be covered with ice, 

snow, dirt, etc. Remove the ice, 

snow, dirt, etc., from the sensor to 

return the system to normal.
Also, due to ice forming on a sensor 

at low temperatures, a warning 

message may be displayed or the 

sensor may not be able to detect an 

object. Once the ice melts, the sys-

tem will return to normal.

If an abnormality is displayed even 

though there are no water droplets, 

ice, snow or dirt, the sensor may be 

operating abnormally. Have the 

vehicle inspected by your Toyota 

dealer.

■

If “System Stopped See 

Owner’s Manual” is displayed 

on the multi-information display

Water may be continuously flowing 

over the sensor surface, such as in 

a heavy rain. When the system 

determines that it is normal, the sys-

tem will return to normal.

■

If “System Malfunction Visit 

Your Dealer” is displayed on 

the multi-information display

There may be a sensor or voltage 

malfunction. Have the vehicle 

inspected by your Toyota dealer.

■

Sensor detection information

●

The sensor’s detection areas are 

limited to the areas around the 

vehicle’s front and rear bumpers.

●

Certain vehicle conditions and the 

surrounding environment may 

affect the ability of a sensor to cor-

rectly detect an object.

●

Objects may not be detected if 

they are too close to the sensor.

●

There will be a short delay 

between object detection and dis-

play. Even at low speeds, there is 

a possibility that the object will 

come within the sensor’s detection 

areas before the display is shown 

and the warning beep sounds.

●

It might be difficult to hear the 

buzzer due to the volume of the 

audio system or air flow noise of 

the air conditioning system.

●

It may be difficult to hear the 

buzzer if buzzers for other sys-

tems are sounding.

●

If the meter malfunctions, the 

buzzer may not sound.

WARNING

●

Keep your tires properly 

inflated.

●

A non-genuine Toyota suspen-

sion (lowered suspension, etc.) 

is installed.

■

Notes when washing the vehi-

cle

Do not apply intensive bursts of 

water or steam to the sensor 

area. Doing so may result in the 

sensor malfunctioning.

●

When using a high pressure 

washer to wash the vehicle, do 

not spray the sensors directly, 

as doing so may cause a sensor 

to malfunction.

●

When using steam to clean the 

vehicle, do not direct steam too 

close to the sensors as doing so 

may cause a sensor to malfunc-

tion.

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4

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■

Objects which the system may 
not properly detect

The shape of the object may pre-
vent the sensor from detecting it. 
Pay particular attention to the fol-
lowing objects:

●

Wires, fences, ropes, etc.

●

Cotton, snow and other materials 
that absorb sound waves

●

Sharply-angled objects

●

Low objects

●

Tall objects with upper sections 
projecting outwards in the direc-
tion of your vehicle

People may not be detected if they 
are wearing certain types of cloth-
ing.

■

Situations in which the system 
may not operate properly

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

●

There is dirt, snow, water drops or 
ice on a sensor. (Cleaning the 
sensors will resolve this problem.)

●

A sensor is frozen. (Thawing the 
area will resolve this problem.) 
In especially cold weather, if a 
sensor is frozen the sensor dis-
play may be displayed abnor-
mally, or objects, such as a wall, 
may not be detected.

●

When a sensor or the area around 
a sensor is extremely hot or cold.

●

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

●

When vehicle horns, vehicle 
detectors, motorcycle engines, air 
brakes of large vehicles, the clear-
ance sonar of other vehicles or 
other devices which produce ultra-
sonic waves are near the vehicle.

●

A sensor is coated with a sheet of 
spray or heavy rain.

●

If objects draw too close to the 
sensor.

●

When a pedestrian is wearing 
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).

●

When objects that are not perpen-
dicular to the ground, not perpen-
dicular to the vehicle traveling 
direction, uneven, or waving are in 
the detection range.

●

When strong winds are blowing.

●

When driving in inclement weather 
such as fog, snow or a sandstorm.

●

When an object that cannot be 
detected is between the vehicle 
and a detected object.

●

If an object such as a vehicle, 
motorcycle, bicycle or pedestrian 
cuts in front of the vehicle or runs 
out from the side of the vehicle.

●

If the orientation of a sensor has 
been changed due to a collision or 
other impact.

●

When equipment such as a towing 
eyelet, transport hook, bumper 
protector, bumper trim, bicycle 
carrier or snow-removal device 
(snow plow) is installed near the 
sensor.

●

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

●

If the vehicle cannot be driven in a 
stable manner, such as when the 
vehicle has been in an accident or 
is malfunctioning.

●

When tire chains, a compact 
spare tire or an emergency tire 
puncture repair kit are used.

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4-5. Using the driving support systems

■

Situations in which the system 
may operate even if there is no 
possibility of a collision

In some situations, such as the fol-
lowing, the system may operate 
even though there is no possibility of 
a collision.

●

When driving on a narrow road.

●

When driving toward a banner, 
flag, low-hanging branch or boom 
barrier (such as those used at rail-
road crossings, toll gates and 
parking lots).

●

When there is a rut or hole in the 
surface of the road.

●

When driving on a metal cover 
(grating), such as those used for 
drainage ditches.

●

When driving up or down a steep 
slope.

●

If a sensor is hit by a large amount 
of water, such as when driving on 
a flooded road.

●

There is dirt, snow, water drops or 
ice on a sensor. (Cleaning the 
sensors will resolve this problem.)

●

A sensor is coated with a sheet of 
spray or heavy rain.

●

When driving in inclement weather 
such as fog, snow or a sandstorm.

●

When strong winds are blowing.

●

When vehicle horns, vehicle 
detectors, motorcycle engines, air 
brakes of large vehicles, the clear-
ance sonar of other vehicles or 
other devices which produce ultra-
sonic waves are near the vehicle.

●

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

●

If the orientation of a sensor has 
been changed due to a collision or 
other impact.

●

The vehicle is approaching a tall 
or curved curb.

●

Driving close to columns (H-
shaped steel beams, etc.) in multi-
story parking garages, construc-
tion sites, etc.

●

If the vehicle cannot be driven in a 
stable manner, such as when the 
vehicle has been in an accident or 
is malfunctioning.

●

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

●

When tire chains, a compact 
spare tire or an emergency tire 
puncture repair kit are used.