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4-5. EyeSight
Driving
*: If equipped
Some unusual noises may be audible
during automatic braking. This is caused
by the braking control and is normal.
Pre-Collision Braking
System*
When there is the risk of a
rear-end collision with an
obstacle or pedestrian in front,
the EyeSight system helps to
prevent or minimize a collision
by warning the driver. If the
driver still does not take eva-
sive action to avoid a collision,
the brakes can be automati-
cally applied just before the
collision in order to reduce
impact damage, or if possible,
prevent the collision. If the
driver takes evasive action to
avoid a collision, Pre-Collision
Braking Assist will operate in
order to help the driver to pre-
vent or minimize the collision.
This function can be activated
when the shift lever is in the D,
M or N position.
WA R N I N G
●Never use Pre-Collision Braking
System and Pre-Collision Braking
Assist to stop your car or avoid a collision under ordinary conditions.
These functions cannot prevent col-
lisions under all conditions. If the driver relies only on Pre-Collision
Braking System for Brake opera-
tion, collisions may occur.
●When a warning is activated, pay attention to the front of the vehicle
and its surroundings, and operate
the brake pedal and/or take other actions if necessary.
●The EyeSight Pre-Collision Braking System is primarily designed to pre-
vent rear-end collisions with other
vehicles when possible or to mini- mize damage and injuries in the
event of a collision. In addition to
other vehicles, things such as motorbikes, bicycles and pedestri-
ans can also be treated as obsta-
cles. However, there may be cases when detection is not possible
depending on a variety of condi-
tions*2. For example, when a vehi- cle is viewed from the side,
oncoming vehicle, vehicles
approaching in reverse, small ani- mals or children, or walls or doors
are not likely to be detected.
●Pre-Collision Braking System will
operate at the point when it deter-
mines that a collision cannot be avoided and is designed to apply
strong braking force just before a
collision. The result of this varies depending on a variety of condi-
tions*2. Because of this, perfor-
mance of this function will not always be the same.
●When Pre-Collision Braking System is activated, it will continue to oper-
ate even if the accelerator pedal is
partially depressed. However, it will be canceled if the accelerator
pedal is suddenly or fully
depressed.
●If the driver depresses the brake
pedal or turns the steering wheel,
the system may deter mine that this constitutes evasive action by the
driver, and the automatic braking
control may not activate in order to allow the driver full control.
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1764-5. EyeSight
WA R N I N G
●When the difference in speed with
the obstacle in front is the following
figure*1or more, it may not be possi- ble to avoid a collision. Even if the
speed difference is the following fig-
ure*1 or less, in cases such as when another vehicle cuts in front
of you, or in other cases depending
on visibility, the condition of road
surface and other factors*2, the function may be unable to stop the
vehicle or may not activate.
Pre-Collision Braking Assist also may not activate depending on the
conditions*2 listed below.
*1: For vehicles: approximately 50
km/h (30 mph),
For pedestrians: approximately 35
km/h (20 mph)
*2: Conditions in which Pre-Collision
Braking System cannot detect
obstacles:
• Distance to obstacle in front of you,
speed difference, proximity condi- tions, lateral di splacement (the
amount of offset)
• Vehicle conditions (amount of load,
number of occupants, etc.)
• Road conditions (grade, slipperi-
ness, shape, bumps, etc.)
• Visibility ahead is poor (rain, snow,
fog or smoke, etc.)
• The detected object is something
other than a vehi cle, motorcycle,
bicycle or pedestrian.
A domestic animal or other animal
(a dog or deer, etc.)
A guardrail, telephone pole, tree,
fence or wall, etc.
• Even if the obstacle is a motorcycle, bicycle or pedestrian, depending on
the brightness of the surroundings
as well as the relative movement, and aspect or angle of the object,
there may be cases when the sys-
tem cannot detect it.
• The system determines that opera-
tion by the driver (based on acceler- ator pedal operation, braking,
steering wheel angle, etc.) is
intended as evasive action.
• Vehicle maintenance status (brake
systems, tire wear, tire pressure, etc.)
• A trailer or another vehicle, etc. is being towed.
• The brakes are cold due to the out- side temperature being low or just
after starting the engine.
• The brakes are overheated on
downhill grades (braking perfor-
mance is reduced).
• In rain or after washing the vehicle
(the brakes are wet and braking performance is reduced.)
• Recognition conditions of the stereo camera
In particular, the function may be
unable to stop the vehicle or may not
activate in the following cases.
Bad weather (for example heavy
rain, a blizzard or thick fog)
Visibility is poor due to sand,
smoke or water vapor blowing in the
wind, or the front vision is obscured
due to water splashes, snow, dirt or
dust stir up generated by the vehicle
in front or oncoming traffic.
At night or in a tunnel without the
headlights on
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Driving
WA R N I N G
At night or in a tunnel when there is
a vehicle in front that does not have
its taillights on
Approaching a motorcycle, bicycle
or pedestrian at night
Ambient light is poor in the evening
or early morning.
A vehicle, motorcycle, bicycle or
pedestrian is outside the area illumi-
nated by the headlights.
Strong light is coming from the
front (for example, sunlight at dawn,
sunset or headlight beams, etc.).
The windshield has become
fogged, scratched or smeared, or
snow, dirt, dust or frost has adhered
to it, or it is otherwise affected. These
will reduce the stereo camera’s field
of view. Also, light is reflecting off the
dirt, etc.
Fluid has not been fully wiped off
the windshield during or after washer
use.
The target cannot be correctly rec-
ognized because the stereo camera’s
view is obstructed by water droplets
from rain or the window washer, or by
the wiper blades.
The stereo camera’s field of view is
obstructed.
The rear aspect of the vehicle in
front is low, small or irregular (the sys-
tem may recognize another part of the
vehicle as its rear and will determine
operation from that).
• There is an empty truck or trailer
with no rear and/or side panels on the cargo bed.
• Vehicles that have cargo protrud-ing from their back ends
• Non-standard shaped vehicles (vehicle transporters or vehicles
with a sidecar fitted, etc.)
• The height of the vehicle is low, etc.
There is a wall, etc. in front of a
stopped vehicle.
There is another object near the
vehicle.
A vehicle, etc. has its side facing
you.
With vehicles that are backing up
or with oncoming vehicles, etc.
The size and height of an obstacle
is smaller than the limitations of the
stereo camera’s recognition capabil-
ity.
• With small animals or children, etc.
• With pedestrians who are sitting or
lying down
The detected object is a fence or
wall, etc. with a uniform pattern (a
striped pattern or brick pattern, etc.).
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1784-5. EyeSight
WA R N I N G
There is a wall or door made of
glass or a mirror in front.
The vehicle in front suddenly
swerves, accelerates, or decelerates.
A vehicle, motorcycle, bicycle or
pedestrian suddenly cuts in from the
side or suddenly runs in front of you.
Your vehicle is immediately behind
an obstacle after changing lanes.
There is a vehicle, motorcycle,
bicycle or pedestri an in a location
close to your vehicle’s bumper.
The speed difference between
your vehicle and an obstacle is 5
km/h (4 mph) or less (As braking is
performed once the obstacle is in
close proximity to your vehicle,
depending on the shape and size of
the obstacle, there may be some
cases when the obstacle is outside
the range of the camera’s field of
view.).
On sharp curves, steep uphill
grades or steep downhill grades
On a bumpy or unpaved road
There are changes in brightness,
such as at a tunnel entrance or exit.
●Do not test Pre-Collision Braking System on its own. It may operate
improperly and cause an accident.
●The system may not operate cor-
rectly under the conditions listed
below. When these conditions occur, turn off Pre-Collision Braking
System. (P.183)
• The tire pressure is not correct.*1
• Tires that are unevenly worn or tires with uneven wear patterns are
installed.*1
• Tires that are the wrong size are
installed.*1
• A flat tire has been fixed temporarily
with a tire repair kit.
• The suspension has been modified
(including a genuine Toyota sus-
pension that has been modified).
• An object that obstructs the stereo
camera’s view is installed on the vehicle.
• Tire chains are installed.
• The headlights are dirty or they
have snow and ice or dirt on them. (Objects are not correctly illumi-
nated and are difficult to detect.)
• The optical axes are not aligned
correctly. (Objects are not correctly
illuminated and are difficult to detect.)
• The lights including headlights and fog lights have been modified.
• Vehicle operation has become unstable due to an accident or mal-
function.
• The brake system warning light is
illuminated in red.*2
• A heavy cargo is inside the vehicle.
• The maximum number of occu- pants is exceeded.
• The meter is not operating properly; such as when the lights do not illu-
minate, the beeps do not sound, the
display is different from when it is
normal, etc.*3
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Driving
WA R N I N G
*1: The wheels and tires have func-
tions that are critically important.
Be sure to use the correct ones.
( P.375)
*2: If the brake system warning light
(red) does not turn off, immediately
pull the vehicle over in a safe place
and contact any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer to
have the system inspected.
*3: For details about the meter, refer to
P. 8 8 .
NOTICE
In the following situations, turn off
Pre-Collision Braking System. Other- wise Pre-Collision Braking System
may activate unexpectedly.
●The vehicle is being towed.
●The vehicle is being loaded onto a
carrier.
●A chassis dynamometer, free-roll-
ers or similar equipment is being used.
●A mechanic lifts up the vehicle, starts the engine and spins the
wheels freely.
●Passing hanging banners, flags or
branches
●Thick/tall vegetation is touching the
vehicle.
●Driving on a race track
●In a drive-through car wash
Pre-Collision Braking System may
activate in the following situations. Therefore concentrate on safe driv-
ing.
●Passing through an automatic gate
(opening and shutting)
●Driving close to the vehicle in front
●Driving in a location where the grade of the road changes rapidly
●Visibility is poor due to sand, smoke
or water vapor blowing in the wind,
or the front vision is obscured due to water splashes, snow, dirt or dust
stir up generated by the vehicle in
front or oncoming traffic.
●Passing through clouds of steam or
smoke, etc.
●In adverse weather, such as heavy
snow or snowstorms
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1804-5. EyeSight
The EyeSight system can also
detect pedestrians. The EyeSight
system detects pedestrians from
their size, shape and movement.
The system detects a pedestrian
when the contour of the head and
shoulders are clear.
Approx. 1-2 m (3 1/3 ft - 6 2/3 ft)
NOTICE
●The exhaust gas emitted by the
vehicle in front is clearly visible in
cold weather, etc.
●There is an obstacle on a curve or
intersection.
●A vehicle or an object is being nar-
rowly passed.
●Stopping very close to a wall or a
vehicle in front
●Passing through water spray from
road sprinklers or snow clearing
sprinklers on the road
If there are installed accessories, etc. that are protruding beyond the edge
of the front bumper, the vehicle’s
length will increase and the system may not be able to prevent a collision.
If the driver operates the brake pedal during automatic braking, the pedal
may feel stiff; however, this is normal.
By depressing the brake pedal further you can apply more braking force.
Detection of pedestrians
WA R N I N G
The EyeSight system ’s Pre-Collision
Braking function also identifies pedes-
trians as obstacles. However, depending on the conditions, there
may be cases when the system can-
not detect a pedestrian. In the follow- ing conditions, the possibility that the
system may not be able to detect a
pedestrian as an object is particularly high.
●Pedestrians are walking in a group.
A
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Driving
When there is an obstacle in front of you during driving, the system acti-
vates in the following sequence in order to warn the driver and to activate
braking control and the stop lights.
Following distance warning:
When the system determines that there is a risk of collision, an alert sounds
repeated short beeps and the indicators on the meter display illuminate to warn the
driver.
The Following Distance Warning operates when Adaptive Cruise Control is not acti-
vated.
When the driver depresses the brake pedal to decelerate and achieves a suitable
following distance, the warning is canceled.
First braking and warning:
When the system determines that there is a high risk of collision with an obstacle in
front, an alert sounds repeated short beeps and the indicators on the meter display
illuminate to warn the driver. Braking control may be activated and in some situa-
tions, engine output may also be controlled. If the system determines that the
amount of evasive action (braking, steering, etc.) taken by the driver has reduced
the risk of collision, braking activation is canceled.
Secondary braking and warning:
If the system then determines that the risk of collision is extremely high, the alert
WA R N I N G
●A pedestrian is next to a wall or
other obstacle.
●A pedestrian is using an umbrella.
●A pedestrian is wearing clothes that are a similar color to the surround-
ing environment.
●A pedestrian is carrying bulky lug- gage.
●A pedestrian is bent over, crouching down or lying down.
●A pedestrian is in a dark location.
●A pedestrian suddenly crosses in
front of you from the side or sud- denly runs in front of you.
Pre-Collision Braking System operation
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1824-5. EyeSight
changes to a continuous beeping sound and stronger braking control is activated.
Despite any evasive action ta ken by the driver, if the system subsequently deter-
mines that a collision is unavoidable, braking and engine output are controlled by
the system.
When the vehicle is comple tely stopped by the automatic braking system, a short
tone “3 intermittent beeps, 1 short beep and 1 long beep” will sound and braking will
be gradually released and the vehicle will start creeping. To stop the vehicle com-
pletely, depress the brake pedal after the vehicle has stopped.
●Neither first braking nor secondary brak ing will operate in the following cases.
• The vehicle speed is approximately 1 km/h (1 mph) or less (When the shift lever is in the N position and your vehicle speed is approximately 4 km/h (2 mph) or less)
or 200 km/h (125 mph) or more.
• VSC is active.
●If the system detects th e stop lights of the vehicle in front, your vehicle will start
decelerating earlier than if it does not.
●There are some cases where the first braking is applied for a longer period of time.
One of the reasons for this is due to a large speed difference with an obstacle in front. In those cases, stronger or weaker braking control may be activated.
After the Pre-Collision Braking System operation, a message appears and
stays on the meter display for a certain period of time.
“Pre-Collision Braking System Activated”
Following dist ance warning
A
A