
2044-5. Using the driving support systems
WARNING
●Vehicle is driven in a construc-
tion zone.
●A spare tire, tire chains, etc. are 
equipped.
●When the tires have been 
excessively worn, or when the 
tire inflation pressure is low.
●When your vehicle is towing a 
trailer or during emergency tow-
ing
■Preventing LTA system mal-
functions and operations per-
formed by mistake
●Do not modify the headlights or 
place stickers, etc. on the sur-
face of the lights.
●Do not modify the suspension 
etc. If the suspension etc. needs 
to be replaced, contact your 
Toyota dealer.
●Do not install or place anything 
on the hood or grille. Also, do 
not install a grille guard (bull 
bars, kangaroo bar, etc.).
●If your windshield needs 
repairs, contact your Toyota 
dealer.
■Conditions in which functions 
may not operate properly
In the following situations, the 
functions may not operate prop-
erly 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.209) and 
the preceding vehicle changes 
lanes. (Your vehicle may follow 
the preceding vehicle and also 
change lanes.)
●When the follow-up cruising dis-
play is displayed (
P.209) and 
the preceding vehicle is sway-
ing. (Your vehicle may sway 
accordingly and depart from the 
lane.)
●When the follow-up cruising dis-
play is displayed (P.209) and 
the preceding vehicle departs 
from its lane. (Your vehicle may 
follow the preceding vehicle and 
depart from the lane.)
●When the follow-up cruising dis-
play is displayed (
P.209) and 
the preceding vehicle is being 
driven extremely close to the 
left/right lane line. (Your vehicle 
may follow the preceding vehi-
cle and depart from the lane.)
●Vehicle is being driven around a 
sharp curve. 

2064-5. Using the driving support systems
■Lane departure alert func-
tion
When the system determines  that the vehicle might depart 
from its lane or course
*, a warn-
ing is displayed on the 
multi-information display, and a 
warning buzzer will sound to 
alert the driver.
When the warning buzzer sounds, 
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 sys-
tem determines that the vehicle 
might depart from its lane and that 
the possibility 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 
WARNING
●The traffic lane is excessively 
narrow or wide.
●The vehicle is extremely tilted 
due to carrying heavy luggage 
or having improper tire pres-
sure.
●The distance to the preceding 
vehicle is extremely short.
●The vehicle is moving up and 
down a large amount due to 
road conditions during driving 
(poor roads or road seams).
●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 intersec-
tion.
●Tires which differ by structure, 
manufacturer, 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 

2074-5. Using the driving support systems
4
Driving
that the vehicle might depart 
from its lane or course
*, the sys-
tem provides assistance as nec-
essary by operating the steering 
wheel in small amounts for a 
short period of time to keep the 
vehicle in its lane.
If the system detects that the steer-
ing wheel has not been operated 
for a fixed amount of time or the 
steering wheel is not being firmly 
gripped, a warning is displayed on 
the multi-information display and 
the function is temporarily can-
celed.
Vehicle with BSM: When the sys-
tem determines that the vehicle 
might depart from its lane and that 
the possibility 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 side of the road, such as 
grass, soil, or a curb
■Vehicle sway warning func-
tion
When the vehicle is swaying 
within a lane, the warning 
buzzer will sound and a mes-
sage will be displayed on the 
multi-information display to alert 
the driver. 

2084-5. Using the driving support systems
■Lane centering function
This function is linked with 
dynamic radar cruise control 
with full-speed range and pro-
vides the required assistance by 
operating the steering wheel to 
keep the vehicle in its current 
lane.
When dynamic radar cruise control 
with full-speed range is not operat-
ing, the lane centering function 
does not operate.
In situations where the white (yel-
low) 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.
If the system detects that the steer-
ing wheel has not been operated 
for a fixed amount of time or the 
steering wheel is not being firmly 
gripped, a warning is displayed on  the multi-information display and 
the function is temporarily can-
celed.
Press the LTA switch to turn the 
LTA system on.
The LTA indicator illuminates and a 
message is displayed on the 
multi-information display.
Press the LTA switch again to turn 
the LTA system off.
When the LTA system is turned on 
or off, operation of the LTA system 
continues in the same condition the 
next time the engine is started.
Turning LTA system on 

2094-5. Using the driving support systems
4
Driving
LTA i n d i c a t o r
The illumination condition of the 
indicator informs th e driver of the 
system operation status.
Illuminated in white: LTA system is 
operating.
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).
Lane departure alert function 
display
Displayed when the multi-informa-
tion display is switched to the driv-
ing support system information 
display.
Inside of displayed lines is 
white
Indicates that the system is rec-
ognizing white (yellow) lines or a 
course
*. When the vehicle 
departs from its lane, the white 
line displayed on the side the 
vehicle departs from flashes 
orange.
Indications on  multi-infor-
mation display 

2104-5. Using the driving support systems
Inside of displayed lines is 
black
Indicates that the system is not 
able to recognize white (yellow) 
lines or a course
* or is temporar-
ily canceled.
*: Boundary between asphalt and  the side of the road, such as 
grass, soil, or a curb
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.
■Operation conditions of each 
function
●Lane departure alert function
This function operates when all of 
the following conditions 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 operate 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. (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.212)
*1: The function operates 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 operates when all of 
the following conditions are met in 
addition to the operation conditions 
for the lane departure alert function.
• Setting for “Steering Assist” in    of the multi-information display is 
set to “ON”. ( P.563)
• Vehicle is not accelerated 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.
• Hands off steering wheel warning 
is not displayed. ( P.212)
●Vehicle sway warning function
This function operates when all of  

2114-5. Using the driving support systems
4
Driving
the following conditions are met.
• Setting for “Sway Warning” in   of the multi-information display is 
set to “ON”. ( P.563)
• 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.212)
●Lane centering function
This function operates when all of 
the following conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and  “Lane Center” in   of the 
multi-information di splay are set to 
“ON”. ( P.563)
• 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-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.212)
• 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.212)
• 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.210)
●If the operation conditions 
( P.208) are no longer met while 
the lane centering function is 
operating, the buzzer may sound 
to indicate that the function has 
been temporarily canceled.
■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.
●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-
sion 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 

2124-5. Using the driving support systems
■Hands off steering wheel warn-
ing
In the following si tuations, a warning 
message urging the driver to hold 
the steering wheel and the symbol 
shown in the illustration are dis-
played on the multi-information dis-
play to warn the driver. The warning 
stops when the system determines 
that the driver holds the steering 
wheel. Always keep your hands on 
the steering wheel when using this 
system, regardle ss of warnings.
●When the system determines that 
the driver is driving without hold-
ing 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 can-
celed. This warning also operates in 
the same way when the driver con-
tinuously operates the steering 
wheel only a small amount.
●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 driv-
ing around a curve, warnings will 
occur earlier than during 
straight-lane driving.
●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.
■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 simultaneously 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 LTA 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 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.