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●In the following situations, if the situation has changed (or the vehicle has been
driven for some time) and the normal operating conditions are d etected, the mes- sage will disappear and the system will become operational.
If the message does not disappear, contact any authorized Toyot a retailer or Toyota
authorized repairer, or any reliable repairer.
• When the temperature around the radar sensor is outside of the operational range,
such as when the vehicle is in the sun or in an extremely cold environment • When the front camera cannot detect objects in front of the ve hicle, such as when driving in the dark, snow, or fog, or when bright lights are sh ining into the front
camera • Depending on the conditions in the vicinity of the vehicle, th e radar may judge the surrounding environment can not be properly recognized. In that case, “Pre-Colli-
sion System Unavailable See Owner’s Manual” is displayed.
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4-5. Using the driving support systems
■Enabling/disabling the pre-col-
lision system
The pre-collision system can be
enabled/disabled on ( P.431)
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.
■Changing the pre-collision
warning timing
The pre-collision warning timing
can be changed on ( P.431) 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
WARNING
■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
●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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4-5. Using the driving support systems
Driving
timing will return to the default setting
(middle).
If the pre-collision warning timing is
changed, emergency steering assist
timing will also be changed accordingly.
If late is selected, emergency steering
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
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
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)
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4-5. Using the driving support systems
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 hybrid system has started
the vehicle 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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4-5. Using the driving support systems
Driving
■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 either a warning buzzer
will sound or the steering wheel will
vibrate to alert the driver.
When the warning buzzer sounds or
the steering wheel vibrates, check the
area around your vehicle and carefully
operate the steering wheel to move the
vehicle back to the center of the lane.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
lane departure alert will operate even if
the turn signals are operating.
*: 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.
Vehicle with BSM: When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
steering assist function will operate
even if the turn signals are operating.
*: Boundary between asphalt and the
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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4-5. Using the driving support systems
Driving
■Turning the lane centering
function ON/OFF
Press the LTA switch.
The lane centering function will change
between ON/OFF each time the switch
is pressed.
The current setting will be displayed on
the multi-information display.
Lane centering function ON
“LTA Steering Assist Active Lane
Centering Active”
Lane centering function OFF
“LTA Steering Assist Active”
■Tu r n i n g t h e LTA s y s t e m O F F
Press and hold the LTA switch
The LTA indicator light turns off when
the LTA is turned OFF.
Press the switch again to turn the sys-
tem on.
The LTA is turned ON each time the
power switch is turned to ON.
However, the lane centering function
keeps either the ON/OFF state prior to
the power switch being turned OFF.
LTA indicator
The illumination condition of the indica-
tor informs the driver of the system
operation status.
Illuminated in white: LTA system is
operating.
Illuminated in green: Steering wheel
assistance of the steering assist func-
tion or lane centering function is operat-
ing.
Flashing in orange: Lane departure
alert function is operating.
LTA system setting
Indications on multi-infor-
mation display
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Driving
steering wheel assist is operating, the
buzzer sounds and the driver is warned.
Each time the buzzer sounds, the con-
tinuing time of the buzzer becomes lon-
ger.
The buzzer also sounds even if the alert
type is set to steering wheel vibration.
■Vehicle sway warning function
When the system determines that the
vehicle is swaying while the vehicle sway warning function is operating, a buzzer sounds and a warning message
urging the driver to rest and the symbol shown in the illustration are simultane-ously displayed on the multi-information
display.
Depending on the vehicle and road con-
ditions, the warning may not operate.
■Warning message
If the following warning message is dis- played on the multi-information display
and the LTA indicator illuminates in orange, follow the appropriate trouble-shooting procedure. Also, if a different
warning message is displayed, follow the instructions displayed on the screen.
●“LTA Malfunction Visit Your Dealer”
The system may not be operating prop-
erly. Have the vehicle inspected by any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
●“LTA Unavailable”
The system is temporarily canceled due
to a malfunction in a sensor other than
the front camera. Turn the LTA system
off, wait for a little while, and then turn
the LTA system back on.
●“LTA Unavailable at Current Speed”
The function cannot be used as the
vehicle speed exceeds the LTA opera-
tion range. Drive slower.
■Customization
Function settings can be changed. (Customizable features: P.431)
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4-5. Using the driving support systems
Driving
speed.
■Adjusting the set speed by the
switch
To change the set speed, press the
“+RES” or “-SET” switch until the
desired set speed is displayed.
1 Increases the speed (Except
when the vehicle has been
stopped by system control in
vehicle-to-vehicle distance con-
trol mode)
2 Decreases the speed
Fine adjustment: Press the switch.
Large adjustment: Press and hold the
switch to change the speed, and
release when the desired speed is
reached.
In the vehicle-to-vehicle distance
control mode, the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)*1
or 1 mph (1.6 km/h)*2 each time the
switch is pressed
Large adjustment: Increases or
decreases in 5 km/h (3.1 mph)*1 or 5
mph (8 km/h)*2 increments for as long
as the switch is held
In the constant speed control mode
( P.237), the set speed will be
increased or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)*1
or 1 mph (1.6 km/h)*2 each time the
switch is pressed
Large adjustment: The speed will con-
tinue to change while the switch is held.
*1: When the set speed is shown in
“km/h”
*2: When the set speed is shown in
“MPH”
■Increasing the set speed by
the accelerator pedal
1 Accelerate with accelerator
pedal operation to the desired
vehicle speed
2 Press the “-SET” switch
Pressing the switch changes the
vehicle-to-vehicle distance as fol-
lows:
Adjusting the set speed
Changing the vehicle-to-
vehicle distance (vehicle-to-
vehicle distance control
mode)