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WARNING
●In some situations, while the pre- collision braking function is operat-
ing, operation of the function may be canceled if the accelerator pedal is depressed strongly or the steer-
ing wheel is turned and the system determines that the driver is taking evasive action.
●If the brake pedal is being depressed, the system may deter-
mine that the driver is taking eva- sive action and possibly delay the operation timing of the pre-collision
braking function.
■Emergency steering assist (for
region A)
●As emergency steering assist oper- ation will be canceled when the sys-
tem determines that lane departure prevention function has been com-pleted.
●Emergency steering assist may not operate or may be cancel in the fol-
lowing cases as the system may determine the driver is taking actions.
• If the accelerator pedal is being depressed strongly, the steering
wheel is being operated sharply, the brake pedal is being depressed or the turn signal lever is being
operated. In this case, the system may determine that the driver is tak-ing evasive action and the emer-
gency steering assist may not operate.
• In some situations, while the emer- gency steering assist is operating, operation of the function may be
canceled if the accelerator pedal is depressed strongly, the steering wheel is operated sharply or the
brake pedal is being depressed and the system determines that the driver is taking evasive action.
• When the emergency steering assist is operating, if the steering wheel is held firmly or is operated in
the opposite direction to that which the system is generating torque, the function may be canceled.
■When to disable the pre-colli-sion system
In the following situations, disable the system, as it may not operate prop-erly, possibly leading to an accident
resulting in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another vehicle
●When transporting the vehicle via truck, boat, train or similar means of
transportation
●When the vehicle is raised on a lift
with the hybrid system on and the tires are allowed to rotate freely
●When inspecting the vehicle using a drum tester such as a chassis dynamometer or speedometer tes-
ter, or when using an on vehicle wheel balancer
●When a strong impact is applied to the front bumper or front grille, due to an accident or other reasons
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is malfunctioning
●When the vehicle is driven in a sporty manner or off-road
●When the tires are not properly inflated
●When the tires are very worn
●When tires of a size other than
specified are installed
●When tire chains are installed

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Driving
■Enabling/disabling the pre-col-
lision system
The pre-collision system can be
enabled/disabled on ( P.494)
of the multi-information display.
The system is automatically enabled
each time the power switch is turned to
ON.
If the system is disabled, the PCS
warning light will turn on and a
message will be displayed on the
multi-information display.
“Pre-Collision System OFF”
■Changing the pre-collision
warning timing
The pre-collision warning timing
can be changed on ( P.494) of
the multi-information display.
The warning timing setting is retained
when the power switch is turned off.
However, if the pre-collision system is
disabled and re-enabled, the operation
timing will return to the default setting
(middle).
For region A: If the pre-collision
warning timing is changed, emer-
gency steering assist timing will
also be changed accordingly.
If late is selected, emergency steer-
ing assist would not operate in case
of an emergency.
1 Early
2 Middle
This is the default setting.
3Late
■Operational conditions for each pre-collision function
The pre-collision system is enabled and the system determines t hat the possibility of
WARNING
●When a compact spare tire or an emergency tire puncture repair kit is
used
●If equipment (snow plow, etc.) that
may obstruct the radar sensor or front camera is temporarily installed to the vehicle
Changing settings of the
pre-collision system

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a frontal collision with a detected object is high.
The system may not operate in the following situations:
• If a 12-volt battery terminal has been disconnected and reconn ected and then the
vehicle has not been driven for a certain amount of time
• If the shift lever is in R
• When the VSC OFF indicator is illuminated (only the pre-collis ion warning function will be operational)
The operation speeds and operation cancellation for each functi on is listed below.
●Pre-collision warning
●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 (for region A)
When the turn signal lights are flashing, emergency steering as sist will not operate in
case of an emergency.
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)
For region A and B: Bicy-
clists and pedestrians
Approx. 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)
For region A and B: Bicy-
clists and pedestrians
Approx. 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)
For region A and B: Bicy-
clists and pedestrians
Approx. 10 to 80 km/h (7 to
50 mph)
Approx. 10 to 80 km/h (7 to
50 mph)

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Driving
If any of the following occur while the emergency steering assist function is operat- ing, it will be canceled:
• 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) (for region A)
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) (for region A)
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.239)
The illustration shows an image of detectable objects.
Region A and B
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)
Detectable
objectsVehicle speedOncoming vehicle
speed
Relative speed
between your vehicle
and object
VehiclesApprox. 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
VehiclesApprox. 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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Driving
sign, billboard, etc.)
• When approaching an electric toll gate barrier, parking area barrier, or other
barrier that opens and closes • When using an automatic car wash• When driving through or under objects
t ha t ma y c on t a ct yo u r ve hi cl e , s u ch as thick grass, tree branches, or a ban-ner
• When driving through steam or smoke • When driving near an object that
reflects radio waves, such as a large truck or guardrail• When driving near a TV tower, broad-
casting station, electric power plant, radar equipped vehicles, etc., or other location where strong radio waves or
electrical noise may be present • When there are many things which can reflect the radio waves of the
radar in the vicinity (tunnels, truss bridges, gravel roads, snow covered road that have tracks, etc.)
• For region A: While making a right/left turn, when an oncoming vehicle or a crossing pedestrian has already
exited the path of your vehicle • For region A: While making a right/left turn, closely in front of an oncoming
vehicle or a crossing pedestrian • For region A: While making a right/left turn, when an oncoming vehicle or a
crossing pedestrian stops before
entering the path of your vehicle
• For region A: While making a right/left turn, when an oncoming vehicle turns right/left in front of your vehicle
• For region A: While steering into the direction of oncoming traffic
■Situations in which the system may
not operate properly
●In some situations such as the follow-
ing, an object may not be detected by the radar sensor and front camera, preventing the system from operating
properly: • When a detectable object is approaching your vehicle
• When your vehicle or a detectable object is wobbling• If a detectable object makes an abrupt
maneuver (such as sudden swerving, acceleration or deceleration)• When your vehicle approaches a
detectable object rapidly • When a detectable object is not directly in front of your vehicle
• When a detectable object is near a wall, fence, guardrail, manhole cover,
vehicle, steel plate on the road, etc. • When a detectable object is under a structure
• When part of a detectable object is hidden by an object, such as large baggage, an umbrella, or guardrail

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Driving
• 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 • For region A: When driving in a traffic lane separated by more than one lane
where oncoming vehicles are driving while making a right/left turn• For region A: When largely out of
place with the opposite facing tar- geted oncoming vehicle during a right/left turn
• For region A: While making a right/left turn, when a pedestrian approaches
from behind or side of your vehicle
●For region A: In addition to the above,
in some situations, such as the follow- ing, the emergency steering assist may not operate.
• For region A: When the white (yellow) lane lines are difficult to see, such as when they are faint, diverging/merg-
ing, or a shadow is cast upon them • For region A: When the lane is wider or narrower than normal
• For region A: When there is a light and dark pattern on the road surface, such as due to road repairs
• For region A: When a pedestrian is detected near the centerline of the vehicle
• For region A: When the target is too close• For region A: When there is insuffi-
cient safe or unobstructed space for the vehicle to be steered into• For region A: If oncoming vehicle is
present • For region A: If VSC function is oper-ating
●In some situations such as the follow-ing, sufficient braking force or steering
force (for region A) 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

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• When driving on a road that has
inclines to the left or right
■If VSC is disabled
●If VSC is disabled ( P.330), 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.
*: If equipped
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*, and also can slightly operate
the steering wheel to help avoid
deviation from the lane*. Also, while
the dynamic radar cruise control
with full-speed range is operating,
this system will operate the steering
wheel to maintain the vehicle’s lane
position.
The LTA system recognizes white
(yellow) lane lines* using the front
camera. Additionally, it detects pre-
ceding vehicles using the front
camera and radar.
*: May recognize the boundaries
between the asphalt and the side of
the road, such as grass, soil, or the
curb, to be road lanes.
LTA (Lane Tracing
Assist)*
Summary of functions

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Driving
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.
●When your vehicle is towing a trailer or 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.248) and the
preceding vehicle changes lanes. (Your vehicle may follow the pre-ceding vehicle and also change
lanes.)