
2854-5. Using the driving support systems
4
Driving
This function operates when all of 
the following cond itions are met.
• Setting for “Sway Warning” in    of the multi-information display is 
set to “ON”. ( P.104)
• 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.287)
●Lane centering function
This function oper ates when all of 
the following cond itions are met.
• LTA is turned on.
• Setting for “Steering Assist” and 
“Lane Center” in   of the multi-
information display are set to 
“ON”. ( P.104)
• This function recognizes white  (yellow) lane lines or the position 
of a preceding vehicle (except 
when the preceding vehicle is 
small, such as a motorcycle).
• The dynamic radar cruise control 
with full-speed range is operating 
in vehicle-to-vehic le 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.287)
• 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  not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning 
is not displayed. ( P.286)
• 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.284)
●If the operation conditions 
( P.284) 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 “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 
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 fee l 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.
●Vehicle with BSM: It may not be 
possible for the  system to deter-
mine if there is a  danger of a colli- 

2874-5. Using the driving support systems
4
Driving
■Warning message
If the follo wing 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 Toyota dealer.
●“LTA Unavailable”
The system is temporarily canceled 
due to a malfuncti on 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.547)
*: If equipped
RSA (Road Sign 
Assist)*
The RSA system recognizes 
specific road signs using 
the front camera 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. 

2884-5. Using the driving support systems
When the front camera recog-
nizes a sign, the sign will be dis-
played on the multi-information 
display.
When the driving support sys-
tem information display is 
selected, a maximum of 3 
signs can be displayed. 
( P.104)
 When a tab other than the 
driving support system infor-
mation display is selected, the 
following types of road signs 
will be displayed. ( P.104)
• 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 el
ectronic 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-
Indication on the multi-
information display
Supported types of road 
signs
Speed limit
Do Not Enter
Stop
Yield
Notification function 

2894-5. Using the driving support systems
4
Driving
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.112
■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.
In the following si tuations, 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. ente
rs 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 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  

2904-5. Using the driving support systems
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. 
(Customizable features:  P.547)
■Meter display
Multi-information display
Set speed
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.293)
 Constant speed control 
mode ( P.298)
System Components
A
B 

2944-5. Using the driving support systems
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration crui sing and follow-up cruising
When a preceding vehicle driving slower than the set speed 
appears
When a vehicle is detected runni ng ahead of you, the system automatically 
decelerates your vehicle. When a greater reduction in vehicle s peed is nec-
essary, the system applies the  brakes (the stop lights will come on at this 
time). The system will respond to changes i n the speed of the vehicle 
ahead in order to maintain the ve hicle-to-vehicle distance set by the driver. 
Approach warning warns you when  the system cannot decelerate suffi-
ciently to prevent your vehicle  from closing in on the vehicle  ahead.
When the vehicle ahead of you st ops, your vehicle will also stop (vehicle is 
stopped by system control). Afte r the vehicle ahead starts off, pressing the 
“+RES” switch or depressing the  accelerator pedal (start-off operation) will 
resume follow-up cruising. If the start-off operation is not performed, system 
control continues to keep your vehicle stopped.
When the turn signal lever is ope rated and your vehicle moves to an over-
taking lane while driving at 50 mph (80 km/h) or more, the vehi cle will accel-
erate to help to overt ake a passing vehicle.
The system’s identifi cation of what is an overtaking lane may be deter-
mined solely based on  the location of the steering wheel in the  vehicle (left 
side driver position versus righ t side driver position.) If the vehicle is driven 
to a region where the overtaking lane is on a different side fr om where the 
vehicle is normally driven, the v ehicle may accelerate when the turn signal 
lever is operated in the opposite direction to the overtaking l ane (e.g., if the 
driver normally operates the vehicle in a region where the over taking lane is 
to the right but then drives to  a region where the overtaking l ane is to the 
left, the vehicle may accelerate  when the right turn signal is activated).
Example of acceleration
When there are no longer any preceding vehicles driving slower 
than the set speed
The system accelerates until the  set speed is reached. The system then 
returns to constan t speed cruising.
1Press the cruise control main  switch to activate the cruise 
control.
Dynamic radar cruise control indi-
cator will come on and a message 
will be displayed on 
the multi-infor-
mation display. Press the switch 
A
B
C
Setting the vehicle speed 
(vehicle-to-vehicle dis-
tance control mode) 

2954-5. Using the driving support systems
4
Driving
again to deactivate the cruise con-
trol.
If the cruise control main switch is 
pressed and held for 1.5 seconds 
or more, the syste m turns on in 
constant speed control mode. 
(  P.298)
2 Accelerate or decelerate, 
with accelerator pedal opera-
tion, to the desired vehicle 
speed (at or above approxi-
mately 20 mph [30 km/h]) 
and press the “-SET” switch 
to set the speed.
Cruise control “SET” indicator will 
come on.
The vehicle speed at the moment 
the switch is released becomes the 
set 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 
control mode)
2 Decreases the speed
Fine adjustment: Press the switch.
Large adjustment: Press and hold 
the switch to cha nge the speed, 
and release when the desired 
speed is reached.
In the vehicle-to-vehicle dis-
tance control mode, the set 
speed will be increased or 
decreased as follows:
For the U.S. mainland and 
Hawaii
Fine adjustment: By 1 mph (1.6 
km/h)
*1 or 1 km/h (0.6 mph)*2 each 
time the switch is pressed
Large adjustment: Increases or 
decreases in 1 mph (1.6 km/h)
*1 or 
1 km/h (0.6 mph)
*2 increments for 
as long as the switch is held
Except for the U.S. mainland 
and Hawaii
Fine adjustment: By 1 mph (1.6 
Adjusting the set speed 

2964-5. Using the driving support systems
km/h)*1 or 1 km/h (0.6 mph)*2 each 
time the switch is pressed
Large adjustment: Increases or 
decreases in 5  mph (8 km/h)
*1 or 5 
km/h (3.1 mph)
*2 increments for as 
long as the switch is held
In the constant speed control 
mode ( P.298), the set speed 
will be increased or decreased 
as follows:
Fine adjustment: By 1 mph (1.6 
km/h)
*1 or 1 km/h (0.6 mph)*2 each 
time the switch is pressed
Large adjustment:  The speed will 
continue to change while the switch 
is held.
*1: When the set speed is shown in  “MPH”
*2: When the set speed is shown in “km/h”
 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 
follows: 1
Long
2 Medium
3 Short
If a vehicle is running ahead of you, 
the preceding vehicle mark   will 
also be displayed.
Select a distance from the table 
below. Note that the distances 
shown correspond to a vehicle 
speed of 50 mph (80 km/h). 
Vehicle-to-vehicle distance 
increases/decreases in accor-
dance with vehicle speed. When 
the vehicle is stopped by system 
control, the vehicle stops at a 
certain vehicle-to-vehicle dis-
tance depending on the situa-
tion.
Changing the vehicle-to-
vehicle distance (vehicle-
to-vehicle distance con-
trol mode)
Vehicle-to-vehicle dis-
tance settings (vehicle-to-
vehicle distance control 
mode)
A