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4-5. Using the driving support systems
Driving
■Lane centering function
This function is linked with dynamic
radar cruise control with full-speed
range and provides the required
assistance by operating the steer-
ing wheel to keep the vehicle in its
current lane.
When dynamic radar cruise control with
full-speed range is not operating, the
lane centering function does not oper-
ate.
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
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 system setting
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4-5. Using the driving support systems
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.
Operation display of steering
wheel operation support
Displayed when the multi-information
display is switched to the driving sup-
port system information screen.
Indicates that steering wheel assis-
tance of the steering assist function or
lane centering function is operating.
Both outer sides of the lane are dis-
played: Indicates that steering wheel
assist of the lane centering function is
operating.
One outer side of the lane is displayed:
Indicates that steering wheel assist of
the steering assist function is operating.
Both outer sides of the lane are flash-
ing: Alerts the driver that their input is
necessary to stay in the center of the
lane (lane centering function).
Follow-up cruising display
Displayed when the multi-information
display is switched to the driving sup-
port system information screen.
Indicates that steering assist of the lane
centering function is operating by moni-
toring the position of a preceding vehi-
cle.
When the follow-up cruising display is
displayed, if the preceding vehicle
moves, your vehicle may move in the
same way. Always pay careful attention
to your surroundings and operate the
steering wheel as necessary to correct
the path of the vehicle and ensure
safety.
Lane departure alert function
display
Displayed when the multi-information
display is switched to the driving sup-
port system information screen.
Inside of displayed lines is white
Indicates that the system is recog-
nizing a road lane*. When the vehi-
cle departs from its lane, the white
line displayed on the side the vehi-
cle departs from flashes orange.
Indications on multi-infor-
mation display
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4-5. Using the driving support systems
Driving
Inside of displayed lines is black
Indicates that the system is not able
to recognize a road lane* or is tem-
porarily canceled.
*: May recognize the boundaries
between the asphalt and the side of
the road, such as grass, soil, or the
curb, to be road lanes.
■Operation conditions of each func-
tion
●Lane departure alert function
This function operates when all of the
following conditions are met.
• LTA is turned on. • Vehicle speed is approximately 50
km/h (32 mph) or more.*1
• System recognizes a road lane*2.
(When a road lane*2 is recognized on only one side, the system will operate
only for the recognized side.) • Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• Turn signal lever is not operated.
(Vehicle with BSM: Except when
another vehicle is in the lane on the side
where the turn signal was operated)
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P.251)*1: The function operates even if the
vehicle speed is less than approxi-
mately 50 km/h (32 mph) when the
lane centering function is operating.
*2: May recognize the boundaries
between the asphalt and the side of
the road, such as grass, soil, or the
curb, to be road lanes.
●Steering assist function
This function operates when all of the
following conditions are met in addition
to the operation conditions for the lane
departure alert function.
• Vehicle is not accelerated or deceler- ated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for chang-ing lanes.
• ABS, VSC, TRC and PCS are not operating.• TRC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P.250)
●Vehicle sway warning function
This function operates when all of the
following conditions are met.
• Setting for “Sway Warning” in of
the multi-information display is set to
“ON”. ( P.494) • Vehicle speed is approximately 50 km/h (32 mph) or more.• Width of traffic lane is approximately 3
m (9.8 ft.) or more. • No system malfunctions are detected. ( P.251)
●Lane centering function
This function operates when all of the
following conditions are met.
• LTA is turned on.
• Setting for “Lane Centre” in of the
multi-information display is set to “ON”
( P.494) • This function recognizes white (yel-
low) lane lines or the position of a pre- ceding vehicle (except when the preceding vehicle is small, such as a
motorcycle). • The dynamic radar cruise control with
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4-5. Using the driving support systems
full-speed range is operating in vehi-
cle-to-vehicle distance control mode. • Width of traffic lane is approximately 3 to 4 m (10 to 13 ft.).
• Turn signal lever is not operated. • Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P.251) • Vehicle does not accelerate or decel-
erate by a fixed amount or more. • Steering wheel is not operated with a steering force level suitable for chang-
ing lanes. • ABS, VSC, TRC and PCS are not operating.
• TRC or VSC is not turned off. • Hands off steering wheel warning is not displayed. ( P.250)
• The vehicle is being driven in the center of a lane.• Steering assist function is not operat-
ing.
■Temporary cancelation of functions
●When operation conditions are no lon-
ger met, a function may be temporar- ily canceled. However, when the operation conditions are met again,
operation of the function is automati- cally restored. ( P.249)
●If the operation conditions (P.249) are no longer met while the lane cen-tering function is operating, the steer-
ing wheel may vibrate and the buzzer may sound to indicate that the func-tion has been temporarily canceled.
However, if the steering wheel vibra- tion customization setting is set to on, the system will notify the driver by
vibrating the steering wheel instead of sounding the buzzer.
■Steering assist function/lane cen-tering function
●Depending on the vehicle speed, lane departure situation, road conditions,
etc., the driver may not feel the func- tion is operating or the function may not operate at all.
●The steering control of the function is overridden by the driver’s steering
wheel operation.
●Do not attempt to test the operation of the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to hear due to external noise, audio play-
back, etc. Also, it may be difficult to feel steering wheel vibrations due to the road conditions, etc.
●Vehicle with BSM: It may not be possi-ble for the system to determine if there
is a danger of a collision with a vehicle in an adjacent lane.
●Do not attempt to test the operation of the lane departure alert function.
■Hands off steering wheel warning
In the following situations, a warning
message urging the driver to hold the steering wheel and the symbol shown in the illustration are displayed on the
multi-information display to warn the driver. The warning stops when the sys-tem determines that the driver holds the
steering wheel. Always keep your hands on the steering wheel when using this system, regardless of warnings.
●When the system determines that the driver is driving without holding the
steering wheel while the system is operating
If the driver continues to keep their
hands off of the steering wheel, the
buzzer sounds, the driver is warned and
the function is temporarily canceled.
This warning also operates in the same
way when the driver continuously oper-
ates the steering wheel only a small
amount.
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4-5. Using the driving support systems
Driving
The buzzer also sounds even if the alert
type is set to steering wheel vibration.
●When the system determines that the vehicle may deviate from the lane while driving around a curve while the
lane centering function is operating.
Depending on the vehicle condition and
road conditions, the warning may not
operate. Also, if the system determines
that the vehicle is driving around a
curve, warnings will occur earlier than
during straight-lane driving.
●When the system determines that the
driver is driving without holding the steering wheel while the steering wheel assist of the steering assist
function is operating.
If the driver continues to keep their
hands off of the steering wheel and the
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.494)
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4-5. Using the driving support systems
*: If equipped
In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.
Vehicle-to-vehicle distance con-
trol mode ( P.255)
Constant speed control mode
( P.259)
■Meter display
Multi-information display
Set speed
Indicators
■Operation switches
Vehicle-to-vehicle distance
switch
“+RES” switch
Cancel switch
“-SET” switch
Cruise control main switch
Dynamic radar cruise
control with full-speed
range*
Summary of functions
System components
WARNING
■Before using dynamic radar cruise control with full-speed range
●Driving safely is the sole responsi-bility of the driver. Do not rely solely on the system, and drive safely by
always paying careful attention to your surroundings.
●The dynamic radar cruise control with full-speed range provides driv-ing assistance to reduce the
driver’s burden. However, there are limitations to the assistance pro-vided.
Read the following conditions care-
fully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be cor-
rectly detecting the vehicle ahead: P.262
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