
2584-5. Using the driving support systems
Illuminated in green: Steering 
wheel assistance of the steering 
assist function or lane centering 
function is operating.
Flashing in orange: Lane departure 
alert function is operating.
Operation display of steering 
wheel operation support
Displayed when the multi-informa-
tion display is switched to the driv-
ing support system information 
display.
Indicates that steering wheel assis-
tance of the steering assist function 
or lane centering function is operat-
ing.
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 dis-
played: Indicates that steering 
wheel assist of the steering assist 
function is operating.
Both outer sides of the lane are 
flashing: 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-informa-
tion display is switched to the driv-
ing support system information 
display.
Indicates that steering assist of the 
lane centering function is operating 
by monitoring the position of a pre-
ceding vehicle.
When the follow-up cruising display 
is displayed, if the preceding vehi-
cle moves, your vehicle may move 
in the same way. Always pay care-ful 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-informa-
tion display is swit
ched to the driv-
ing support system information 
display.
 Inside of displayed lines is 
white
Indicates that the system is recog-
nizing white (ye llow) lines or a 
course
*. When the vehicle departs 
from its lane, the white line dis-
played on the side the vehicle 
departs from flashes orange.
 Inside of displayed lines is 
black
Indicates that the system is not able 
to recognize white (yellow) lines or 
a course
* or is temporarily can-
B
C
D 

2594-5. Using the driving support systems
4
Driving
celed.
*: Boundary between asphalt and the side of the road, such as 
grass, soil, or a curb
■Operation conditions of each 
function
●Lane departure alert function
This function oper ates when all of 
the following cond itions are met.
• LTA is turned on.
• Vehicle speed is approximately 32 
mph (50 km/h) or more.
*1
• System recognizes white (yellow) 
lane lines or a course*2. (When a 
white [yellow] line or course*2 is 
recognized on only one side, the 
system will operat e only for the 
recognized side.)
• Width of traffic lane is approxi-
mately 9.8 ft. ( 3 m) or more.
• Turn signal lever is not operated.  (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.261)
*1: The function opera tes even if the 
vehicle speed is less than 
approximately 32 mph (50 km/h) 
when the lane centering function 
is operating.
*2: Boundary between asphalt and  the side of the road, such as 
grass, soil, or a curb
●Steering assist function
This function oper ates when all of 
the following conditions are met in 
addition to the operation conditions 
for the lane departure alert function.
• Vehicle is not a ccelerated or 
decelerated by a fixed amount or 
more.
• Steering wheel is not operated  with a steering force level suitable 
for changing lanes.
• ABS, VSC, TRAC  and PCS are 
not operating.
• TRAC or VSC is not turned off.
●Vehicle sway warning function
This function operates when all of 
the following conditions are met.
• Setting for “Sway Warning” in the 
 screen of the multi-information 
display is set to “ON”. ( P.100, 
111)
• Vehicle speed is approximately 32  mph (50 km/h) or more.
• Width of traffic lane is approxi- mately 9.8 ft. (3 m) or more.
• No system malfunctions are  detected. ( P.261)
●Lane centering function
This function operates when all of 
the following conditions are met.
• LTA is turned on.
• Setting for “Lane Center” in the 
 screen of the multi-information 
display is set to “ON”. ( P.100, 
111)
• This function recognizes white  (yellow) lane lines or the position 
of a preceding v ehicle (except 
when the preceding vehicle is 
small, such as a motorcycle).
• The dynamic radar cruise control 
with full-speed ran ge is operating 
in vehicle-to-vehicle distance con-
trol mode.
• Width of traffic lane is approxi- mately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around 
a sharp curve.
• No system malfunctions are 
detected. ( P.261)
• Vehicle does not accelerate or  decelerate by a fixed amount or 
more.
• Steering wheel is not operated  with a steering force level suitable 
for changing lanes.
• ABS, VSC, TRAC  and PCS are  

2604-5. Using the driving support systems
not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning  is not displayed. ( P.260)
• The vehicle is being driven in the  center of a lane.
• Steering assist function is not  operating.
■Temporary cancelation of func-
tions
●When operation conditions are no 
longer met, a function may be 
temporarily canceled. However, 
when the operation conditions are 
met again, operation of the func-
tion is automatically restored. 
( P.259)
●If the operation conditions 
( P.259) are no longer met while 
the lane centering function is 
operating, the steering wheel may 
vibrate and the buzzer may sound 
to indicate that the function has 
been temporarily canceled. How-
ever, if the “Alert” or “Alert 
Options” customization setting is 
set to steering wheel vibration, the 
system will notify the driver by 
vibrating the steering wheel 
instead of sounding the buzzer.
■Steering assist function/lane 
centering function
●Depending on the vehicle speed, 
lane departure situation, road con-
ditions, etc., the driver may not 
feel the function is operating or 
the function may not operate at 
all.
●The steering control of the func-
tion is overridden  by the driver’s 
steering wheel operation.
●Do not attempt to  test the opera-
tion of the steering assist function.
■Lane departure alert function
●The warning buzzer may be diffi-
cult to hear due to external noise, 
audio playback, etc. Also, it may 
be difficult to feel steering wheel 
vibrations due to the road condi-
tions, etc.
●If the edge of the course* is not 
clear or straight, the lane depar-
ture alert function may not oper-
ate.
●It may not be possible for the sys-
tem to determine if there is a dan-
ger of a collision with a vehicle in 
an adjacent lane.
●Do not attempt to test the opera-
tion of the lane departure alert 
function.
*: Boundary between asphalt and 
the side of the road, such as 
grass, soil, or a curb
■Hands off steering wheel warn-
ing
In the following situations, a warning 
message urging the driver to hold 
the steering wheel and the symbol 
shown in the illust ration are dis-
played on the multi-information dis-
play 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 the 
driver is not hold ing the steering 
wheel while the lane centering 
function is operating.
If the driver continues to keep their 
hands off of the steer ing wheel, the 
buzzer sounds, the driver is warned 
and the function is temporarily can-
celed. This warning also operates in 
the same way when the driver con-
tinuously operates the steering 
wheel only a s mall amount. 

2614-5. Using the driving support systems
4
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.
●When the system determines that 
the driver is driving without hold-
ing the steering wheel while the 
steering wheel assist of the steer-
ing assist function is operating.
If the driver continues to keep their 
hands off of the steering wheel and 
the steering wheel assist is operat-
ing, the buzzer sounds and the 
driver is warned. Each time the 
buzzer sounds, the continuing time 
of the buzzer becomes longer.
The buzzer also sounds even if the 
alert type is set to steering wheel 
vibration.
■Vehicle sway warning function
When the system de termines 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 sim ultaneously dis-
played on the multi-information dis-
play.
Depending on the vehicle and road 
conditions, the warning may not  operate.
■Warning message
If the following warning message is 
displayed on the multi-information 
display and the LT A indicator illumi-
nates in orange, follow the appropri-
ate troubleshooting 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 
properly. Have the vehicle inspected 
by your Toyo ta dealer.
●“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 
operation range. Drive slower.
■Customization
Function settings can be changed. 
(  P.106, 117) 

2624-5. Using the driving support systems
*: If equippedWhen the front camera recog-
nizes a sign and/or information 
of a sign is available from the 
navigation system, the sign will 
be displayed on the multi-infor-
mation display.
Vehicles with 7-inch display:
When the driving support sys-
tem information display is 
selected, a maximum of 3 
signs can be displayed. 
( P.100)
Vehicles with 12.3-inch dis-
play:
A maximum of 2 signs can be 
displayed. ( P.111)
Vehicles with 7-inch display
Vehicles with 12.3-inch dis-
play
 Vehicles with 7-inch display:
When a tab other than the 
driving support system infor-
mation display is selected, the 
RSA (Road Sign 
Assist)*
The RSA system recognizes 
specific road signs using 
the front camera and/or nav-
igation system (when speed 
limit information is avail-
able) to provide information 
to the driver via the display.
If the system judges that the 
vehicle is being driven over 
the speed limit, performing 
prohibited actions, etc. 
according to the recog-
nized road signs, it notifies 
the driver through a visual 
notification and notification 
buzzer.
WARNING
■Before using the RSA
Do not rely solely upon the RSA 
system. RSA is a system which 
supports the driver by providing 
information, but it is not a replace-
ment for a driver’s own vision and 
awareness. Drive safely by 
always paying careful attention to 
the traffic rules.
Indication on the multi-
information display
A
B 

2634-5. Using the driving support systems
4
Driving
following types of road signs 
will be displayed. (P.100)
• Speed limit sign
•Do Not Enter sign (when notifica-
tion is necessary)
If signs other than speed limit 
signs are recognized, they will 
be displayed in an overlapping 
stack under the current speed 
limit sign.
The following types of road 
signs, including electronic signs 
and blinking signs, are recog-
nized.
A non-official or  a recently intro-
duced traffic sign may not be recog-
nized.
In the following situations, the 
RSA system will notify the 
driver.
 When the vehicle speed 
exceeds the speed notifica-
tion threshold of the speed 
limit sign displayed, the sign 
display will be emphasized 
and a buzzer will sound.
 When the RSA system recog-
nizes a do not enter sign and 
determines that your vehicle 
has entered a no-entry area, 
the displayed sign will flash 
and a buzzer will sound.
Depending on the situation, a 
notification function may not 
operate properly.
■Setting procedure
 P.106, 117
■Automatic turn-off of RSA sign 
display
In the following si tuations, a dis-
played speed limit sign and/or do 
not enter sign will stop being dis-
played automatically:
●No sign has been recognized for a 
certain distance.
●The road changes due to a left or 
right turn, etc.
Supported types of road 
signs
Speed limit
Do Not Enter
Stop
Yield
Notification function 

2644-5. Using the driving support systems
In the following situations, stop and 
yield signs will stop being displayed 
automatically:
●The system determines that your 
vehicle has passed the sign.
●The road changes due to a left or 
right turn, etc.
■Conditions in which the func-
tion may not operate or detect 
correctly
In the following situations, RSA 
does not operate normally and may 
not recognize signs, display the 
incorrect sign, etc. However, this 
does not indicate a malfunction.
●The front camera is misaligned 
due to a strong impact being 
applied to the sensor, etc.
●D i r t ,  s n o w ,  s t i c k e r s ,  e t c .  a r e  o n  t h e  
windshield near the front camera.
●In inclement weather such as 
heavy rain, fog, snow or sand 
storms.
●Light from an oncoming vehicle, 
the sun, etc. enters the front cam-
era.
●The sign is dirty, faded, tilted or 
bent.
●The contrast of electronic sign is 
low.
●All or part of the sign is hidden by 
the leaves of a tree, a pole, etc.
●The sign is only visible to the front 
camera for a short amount of time.
●The driving scene (turning, lane 
change, etc.) is judged incorrectly.
●If a sign not appropriate for the 
currently traveled lane, but the 
sign exists directly after a freeway 
branches, or in an adjacent lane 
just before merging.
●Stickers are attached to the rear 
of the preceding vehicle.
●A sign resembling a system com-
patible sign is recognized.
●Side road speed signs may be 
detected and displayed (if posi- tioned in sight of the front camera) 
while the vehicle i
s traveling on 
the main road.
●Roundabout exit road speed signs 
may be detected and displayed (if 
positioned in si ght of the front 
camera) while t raveling on a 
roundabout.
●The front of the vehicle is raised or 
lowered due to the carried load.
●The surrounding brightness is not 
sufficient or changes suddenly.
●When a sign inte nded for trucks, 
etc. is recognized.
●The navigation system map data 
is outdated.
●The navigation system is not oper-
ating.
●The speed information displayed 
on the meter and on the naviga-
tion system may be  different due 
to the navigation system using 
map data.
■Speed limit sign display
If the power switch was last turned 
off while a speed limit sign was dis-
played on the multi-information dis-
play, the same sign displays again 
when the power switch is turned to 
ON.
■If “RSA Malfunction Visit Your 
Dealer” is shown
The system may be malfunctioning. 
Have the vehicle inspected by your 
Toyota dealer.
■Customization
Some functions can be customized. 
(  P.106, 117) 

2654-5. Using the driving support systems
4
Driving
■Meter display
Vehicles with 7-inch multi-
information displayMulti-information display
Set speed
Indicators
Vehicles with 12.3-inch multi-
information display
Multi-information display
Set speed
Indicators
■Operation switchesVehicle-to-vehicle distance 
switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
Dynamic radar cruise 
control with full-speed 
range
In vehicle-to-vehicle dis-
tance control mode, the 
vehicle automatically accel-
erates, decelerates and 
stops to match the speed 
changes of the preceding 
vehicle even if the accelera-
tor pedal is not depressed. 
In constant speed control 
mode, the vehicle runs at a 
fixed speed.
Use the dynamic radar 
cruise control with full-
speed range on freeways 
and highways.
 Vehicle-to-vehicle distance 
control mode ( P.268)
 Constant speed control 
mode ( P.274)
System Components
A
B
C
A
B
C
A
B
C
D
E