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●Pre-collision warning
While the pre-collision warning function is operating, if the s teering wheel is operated heavily or suddenly, the pre-collision warning may be canceled.
●Pre-collision brake assist
●Pre-collision braking
If either of the following occur while the pre-collision brakin g function is operating, it
will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
●Emergency steering assist
When the turn signal lights are flashing, emergency steering as sist will not operate in
case of an emergency.
If any of the following occur while the emergency steering assi st function is operat- ing, it will be canceled:
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Ve hi cl e sApprox. 10 to 180 km/h (7
to 110 mph)
Approx. 10 to 180 km/h (7
to 110 mph)
Bicyclists and pedestriansApprox. 10 to 80 km/h (7 to
50 mph)
Approx. 10 to 80 km/h (7 to
50 mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Ve hi cl e sApprox. 30 to 180 km/h
(20 to 110 mph)
Approx. 30 to 180 km/h (20
to 110 mph)
Bicyclists and pedestriansApprox. 30 to 80 km/h (20
to 50 mph)
Approx. 30 to 80 km/h (20
to 50 mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Ve hi cl e sApprox. 10 to 180 km/h (7
to 110 mph)
Approx. 10 to 180 km/h (7
to 110 mph)
Bicyclists and pedestriansApprox. 10 to 80 km/h (7 to
50 mph)
Approx. 10 to 80 km/h (7 to
50 mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
PedestriansApprox. 40 to 80 km/h (25
to 50 mph)
Approx. 40 to 80 km/h (25
to 50 mph)

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• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.
●Intersection right/left turn assistance (pre-collision warning)
When the turn signal lights are not flashing, support for turni ng left or right at an inter-
section which targets oncoming vehicles does not work.
●Intersection right/left turn assistance (pre-collision braking)
When the turn signal lights are not flashing, support for turni ng left or right at an inter-
section which targets oncoming vehicles does not work.
■Object detection function
The system detects objects based on their size, profile, motion, etc. However, an object may not be detected depend-
ing on the surrounding brightness and the motion, posture, and angle of the detected object, preventing the system
from operating properly. ( P.169) The illustration shows an image of detectable objects.
■Conditions under which the system
may operate even if there is no pos- sibility of a collision
●In some situations such as the follow-ing, the system may determine that there is a possibility of a frontal colli-
sion and operate. • When passing a detectable object, etc.
• When changing lanes while overtak- ing a detectable object, etc.• When approaching a detectable
object in an adjacent lane or on the roadside, such as when changing the course of travel or driving on a wind-
ing road
Detectable
objectsVehicle speedOncoming vehicle
speed
Relative speed
between your vehicle
and object
Ve hi cl e sApprox. 10 to 25 km/h
(7 to 15 mph)
Approx. 30 to 55 km/h
(20 to 35 mph)
Approx. 40 to 80 km/h
(25 to 50 mph)
PedestriansApprox. 10 to 25 km/h
(7 to 15 mph)-Approx. 10 to 25 km/h
(7 to 15 mph)
Detectable
objectsVehicle speedOncoming vehicle
speed
Relative speed
between your vehicle
and object
Ve hi cl e sApprox. 15 to 25 km/h
(10 to 15 mph)
Approx. 30 to 45 km/h
(20 to 28 mph)
Approx. 45 to 70 km/h
(28 to 43 mph)
PedestriansApprox. 10 to 25 km/h
(7 to 15 mph)-Approx. 10 to 25 km/h
(7 to 15 mph)

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end, such as an unloaded truck
• If a preceding vehicle has a low rear end, such as a low bed trailer
• If a vehicle ahead has extremely high ground clearance
• If a vehicle ahead is carrying a load which protrudes past its rear bumper• If a vehicle ahead is irregularly
shaped, such as a tractor or side car • If a vehicle ahead is a child sized bicy-cle, a bicycle that is carrying a large
load, a bicycle ridden by more than one person, or a uniquely shaped bicycle (bicycle with a child seat, tan-
dem bicycle, etc.) • If a pedestrian/or the riding height of a bicyclist ahead is shorter than approx-
imately 1 m (3.2 ft.) or taller than approximately 2 m (6.5 ft.)• If a pedestrian/bicyclist is wearing
oversized clothing (a rain coat, long skirt, etc.), making their silhouette obscure
• If a pedestrian is bending forward or squatting or bicyclist is bending for-ward
• If a pedestrian/bicyclist is moving fast • If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
• When driving in inclement weather such as heavy rain, fog, snow or a sandstorm
• When driving through steam or smoke
• When the surrounding area is dim,
such as at dawn or dusk, or while at night or in a tunnel, making a detect-able object appear to be nearly the
same color as its surroundings • When driving in a place where the sur-rounding brightness changes sud-
denly, such as at the entrance or exit of a tunnel• After the engine has started the vehi-
cle has not been driven for a certain amount of time• While making a left/right turn and for a
few seconds after making a left/right turn• While driving on a curve and for a few
seconds after driving on a curve • If your vehicle is skidding• If the front of the vehicle is raised or
lowered
• If the wheels are misaligned
• If a wiper blade is blocking the front camera• The vehicle is being driven at
extremely high speeds • When driving on a hill• If the radar sensor or front camera is
misaligned • When driving in a traffic lane sepa-rated by more than one lane where
oncoming vehicles are driving while making a right/left turn• When largely out of place with the
opposite facing targeted oncoming vehicle during a right/left turn

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• While making a right/left turn, when a
pedestrian approaches from behind or side of your vehicle
●In addition to the above, in some situ-ations, such as the following, the emergency steering assist may not
operate. • When the white (yellow) lane lines are difficult to see, such as when they are
faint, diverging/merging, or a shadow is cast upon them• When the lane is wider or narrower
than normal • When there is a light and dark pattern on the road surface, such as due to
road repairs • When a pedestrian is detected near the centerline of the vehicle
• When the target is too close • When there is insufficient safe or unobstructed space for the vehicle to
be steered into • If oncoming vehicle is present• If VSC function is operating
●In some situations such as the follow-ing, sufficient braking force or steering
force may not be obtained, preventing the system from performing properly:• If the braking functions cannot operate
to their full extent, such as when the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly main-
tained (brakes or tires are excessively
worn, improper tire inflation pressure, etc.)• When the vehicle is being driven on a
gravel road or other slippery surface • When the road surface has deep wheel tracks
• When driving on a hill road • When driving on a road that has inclines to the left or right
■If VSC is disabled
●If VSC is disabled ( P.212), the pre- collision brake assist and pre-collision
braking functions are also disabled.
●The PCS warning light will turn on and
“VSC Turned OFF Pre-Collision Brake System Unavailable” will be displayed on the multi-information display.

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While driving on a road with clear
white (yellow) lane lines, the LTA
system warns the driver if the vehi-
cle may deviate from the current
lane or course*, and also can
slightly operate the steering wheel
to help avoid deviation from the
lane or course*. Also, while the
dynamic radar cruise control is
operating, this system will operate
the steering wheel to maintain the
vehicle’s lane position.
The LTA system recognizes white
(yellow) lane lines or a course*
using the front camera. Additionally,
it detects preceding vehicles using
the front camera and radar.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
LTA (Lane Tracing
Assist)
Summary of functions
WARNING
■Before using LTA system
●Do not rely solely upon the LTA sys-
tem. The LTA system does not automatically drive the vehicle or reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always assume full responsibility for driving
safely by paying careful attention to the surrounding conditions and operating the steering wheel to cor-
rect the path of the vehicle. Also, the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv-
ing operations and pay careful attention may lead to an accident, resulting in death or serious injury.
■Situations unsuitable for LTA system
In the following situations, use the LTA switch to turn the system off. Fail-ure to do so may lead to an accident,
resulting in death or serious injury.
●Vehicle is driven on a road surface
which is slippery due to rainy weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov-ered road.
●White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
●Vehicle is driven in a temporary lane or restricted lane due to con-
struction work.
●Vehicle is driven in a construction
zone.
●A spare tire, tire chains, etc., are
equipped.
●When the tires have been exces-
sively worn, or when the tire infla- tion pressure is low.

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WARNING
●During emergency towing
■Preventing LTA system malfunc- tions and operations performed by mistake
●Do not modify the headlights or place stickers, etc., on the surface of the lights.
●Do not modify the suspension, etc. If the suspension, etc., needs to be
replaced, contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Do not install or place anything on the hood or grille. Also, do not
install a grille guard (bull bars, kan- garoo bar, etc.).
●If your windshield needs repairs, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■Conditions in which functions
may not operate properly
In the following situations, the func- tions may not operate properly and
the vehicle may depart from its lane. Drive safely by always paying careful attention to your surroundings and
operate the steering wheel to correct the path of the vehicle without relying solely on the functions.
●When the follow-up cruising dis-play is displayed ( P.177) and the
preceding vehicle changes lanes. (Your vehicle may follow the pre-ceding vehicle and also change
lanes.)
●When the follow-up cruising dis- play is displayed ( P.177) and the preceding vehicle is swaying. (Your
vehicle may sway accordingly and depart from the lane.)
●When the follow-up cruising dis-play is displayed ( P.177) and the preceding vehicle departs from its
lane. (Your vehicle may follow the preceding vehicle and depart from the lane.)
●When the follow-up cruising dis-play is displayed ( P.177) and the
preceding vehicle is being driven extremely close to the left/right lane line. (Your vehicle may follow the
preceding vehicle and depart from the lane.)
●Vehicle is being driven around a sharp curve.
●Objects or patterns that could be mistaken for white (yellow) lines are present on the side of the road
(guardrails, reflective poles, etc.).

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■Lane departure alert function
When the system determines that
the vehicle might depart from its
lane or course*, a warning is dis-
played on the multi-information dis-
play, and a warning buzzer will
sound to alert the driver.
When the warning buzzer sounds,
check the area around your vehicle and
carefully operate the steering wheel to
move the vehicle back to the center of
the lane.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Steering assist function
When the system determines that
the vehicle might depart from its
lane or course*, the system pro-
vides assistance as necessary by
operating the steering wheel in
small amounts for a short period of
time to keep the vehicle in its lane.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
WARNING
●When driving in a tunnel or at night with the headlights off or when a
headlight is dim due to its lens being dirty or it being misaligned.
●The vehicle is struck by a cross-wind.
●The vehicle is affected by wind from a vehicle driven in a nearby lane.
●The vehicle has just changed lanes or crossed an intersection.
●Tires which differ by structure, man-ufacturer, brand or tread pattern are used.
●When tires of a size other than specified are installed.
●Snow tires, etc., are equipped.
●The vehicle is being driven at extremely high speeds.
Functions included in LTA
system

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■Vehicle sway warning function
When the vehicle is swaying within
a lane, the warning buzzer will
sound and a message will be dis-
played on the multi-information dis-
play to alert the driver.
■Lane centering function
This function is linked with dynamic
radar cruise control and provides
the required assistance by operat-
ing the steering wheel to keep the
vehicle in its current lane.
When dynamic radar cruise control is
not operating, the lane centering func-
tion does not operate.
In situations where the white (yellow)
lane lines are difficult to see or are not
visible, such as when in a traffic jam,
this function will operate to help follow a
preceding vehicle by monitoring the
position of the preceding vehicle.
■Turning the lane centering
function ON/OFF
Press the LTA switch.
The lane centering function will change
between ON/OFF each time the switch
LTA system setting