
2424-5. Using the driving support systems
Owners Manual_USA_M0C031_en
While driving on a road with 
clear white (yellow) lane lines, 
the LTA system warns the driver 
if the vehicle may deviate from 
the current lane
*, and also can 
slightly operate the steering 
wheel to help avoid deviation 
from the lane. Also, while the 
dynamic radar cruise control 
with full-speed range is operat-
ing, this system will operate the 
steering wheel to maintain the 
vehicle’s lane position.
The LTA system recognizes 
white (yellow) lane lines
* using 
the front camera. Additionally, it 
detects preceding vehicles 
using the front camera and 
radar.
*: May recognize the boundaries  between the asphalt and the side 
of the road, such as grass, soil, or 
the curb, to be road lanes
LTA (Lane Tracing 
Assist)
Summary of functions
WARNING
■Before using LTA system
●Do not rely solely upon the LTA 
system. The LTA system does 
not automatically drive the vehi-
cle or reduce the amount of 
attention that m ust be paid to 
the area in front of the vehicle. 
The driver must always assume 
full responsibilit y for driving 
safely by paying careful atten-
tion to the surrounding condi-
tions and operating the steering 
wheel to correct the path of the 
vehicle. Also, the driver must 
take adequate breaks when 
fatigued, such as from driving 
for a long period of time.
●Failure to perform appropriate 
driving operations and pay care-
ful attention may lead to an 
accident, resulting in death or 
serious injury.
●The lane centering function will 
be disabled automatically when 
LTA detects a trailer connection. 
Turn off the lane centering func-
tion if a trailer is connected and 
it is not automatically disabled. 
After trailer disconnect and 
power switch is turned off, lance 
centering function can be turned 
on.
●Do not use the lane centering 
system and steering assist func-
tion when the vehicle is lifted 
unless using a Toyota official lift 
up kit up to 4 in. (101 mm), 
including tire height. Aftermar-
ket lift kits may degrade system 
performance.
■Situations unsuitable for LTA 
system
In the following situations, use the 
LTA switch to turn the system off. 
Failure to do so may lead to an 
accident, resulting in death or 
serious injury. 

2474-5. Using the driving support systems
Owners Manual_USA_M0C031_en
4
Driving■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.
■Turning the LTA system ON
Press the LTA switch
The LTA indicator illuminates and a 
message is display ed on the multi-
information display.
■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 dis-
played on the multi-information dis-
play.
LTA system setting 

2504-5. Using the driving support systems
Owners Manual_USA_M0C031_enwhen the lane centering function 
is operating.
*2: May recognize the boundaries 
between the asphalt and the side 
o f t he  r oa d,  su ch  as  gr as s, s oil,  or  
the curb, to be road lanes
●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 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.251)
●Vehicle sway warning function
This function oper ates when all of 
the following cond itions are met.
• Setting for “Sway Warning” in    of the multi-information display is 
set to “ON”. ( P.567)
• 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.252)
●Lane centering function
This function oper ates when all of 
the following cond itions are met.
• LTA is turned on.
• Setting for “Lane Center” in   of 
the multi-informati on display is set 
to “ON”. ( P.567)
• 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 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.252)
• 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.251)
• The vehicle is being driven in the  center of a lane.
• Steering assist function is not  operating.
• When your vehicle is not towing a 
trailer or during emergency tow-
ing.
■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.249)
●If the operation conditions 
( P.249) 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” customization 
setting is set to  , the system 
will notify the driver by vibrating 
the steering wheel instead of 
sounding the buzzer. 

2554-5. Using the driving support systems
Owners Manual_USA_M0C031_en
4
Driving
●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 switc h 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. 
(Customizable features: P.568)
In vehicle-to-vehicle distance 
control mode, the vehicle auto-
matically accelerates, deceler-
ates and stops to match the 
speed changes of the preceding 
vehicle even if the accelerator 
pedal is not depressed. In con-
stant 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.258)
 Constant speed control mode 
( P.263)
■Meter display
Multi-information display
Set speed
Indicators
Dynamic radar cruise 
control with full-speed 
range
Summary of functions
System Components 

2564-5. Using the driving support systems
Owners Manual_USA_M0C031_en
■Operation switchesVehicle-to-vehicle distance 
switch
“+RES” switch
Cancel switch
“-SET” switch
Cruise control main switch
WARNING
■Before using dynamic radar 
cruise control with full-speed 
range
●Driving safely is the sole 
responsibility of the driver. Do 
not rely solely o n the system, 
and drive safely by always pay-
ing careful attention to your sur-
roundings.
●The dynamic radar cruise con-
trol with full-speed range pro-
vides driving assistance to 
reduce the driver’s burden. 
However, there are limitations to 
the assistance provided.
Read the following conditions 
carefully. Do not  overly rely on 
this system and always drive 
carefully.
• When the sensor may not be  correctly detect ing the vehicle 
ahead:  P. 2 6 5
• Conditions under which the 
vehicle-to-vehicle distance con-
trol mode may not function cor-
rectly:  P. 2 6 6
●Set the speed appropriately 
depending on the speed limit, 
traffic flow, road conditions, 
weather conditions, etc. The 
driver is responsible for check-
ing the set speed.
●Even when the system is func-
tioning normally, the condition of 
the preceding vehicle as 
detected by the system may dif-
fer from the condition observed 
by the driver. Therefore, the 
driver must always remain alert, 
assess the danger of each situ-
ation and drive safely. Relying 
solely on this system or assum-
ing the system ensures safety 
while driving can lead to an 
accident, resulting in death or 
serious injury.
●Switch the dynamic radar cruise 
control with full-speed range 
setting to off, using the cruise 
control main switch when not in 
use.
■Cautions regarding the driv-
ing assist systems
Observe the following precau-
tions, as there ar e limitations to 
the assistance provided by the 
system. Failure to do so may 
cause an accident resulting in 
death or serious injury. 

2574-5. Using the driving support systems
Owners Manual_USA_M0C031_en
4
Driving
WARNING
●Assisting the driver to measure 
following distance
The dynamic radar cruise control 
with full-speed range is only 
intended to help the driver in 
determining the following distance 
between the driver’s own vehicle 
and a designated vehicle traveling 
ahead. It is not a mechanism that 
allows careless or inattentive driv-
ing, and it is not a system that can 
assist the driver in low-visibility 
conditions. 
It is still necessary for driver to 
pay close attention to the vehi-
cle’s surroundings.
●Assisting the driver to judge 
proper following distance
The dynamic radar cruise control 
with full-speed range determines 
whether the follo wing distance 
between the driver’s own vehicle 
and a designated vehicle traveling 
ahead is within a set range. It is 
not capable of making any other 
type of judgement. Therefore, it is 
absolutely necessary for the 
driver to remain  vigilant and to 
determine whether or not there is 
a possibility of danger in any 
given situation.
●Assisting the driver to operate 
the vehicle
The dynamic radar cruise control 
with full-speed range does not 
include functions which will pre-
vent or avoid collisions with vehi-
cles ahead of your vehicle. 
Therefore, if there is ever any 
possibility of danger, the driver 
must take immediate and direct 
control of the vehicle and act 
appropriately in order to ensure 
the safety of all involved.
■Situations unsuitable for 
dynamic radar cruise control 
with full-speed range
Do not use dynamic radar cruise 
control with full-speed range in 
any of the following situations. 
Doing so may result in inappropri-
ate speed control and could 
cause an accident resulting in 
death or serious injury.
●Roads where there are pedes-
trians, cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as 
those covered with rain, ice or 
snow
●On steep downhills, or where 
there are sudden changes 
between sharp up and down 
gradients
Vehicle speed may exceed the 
set speed when d riving down a 
steep hill.
●At entrances to freeways and 
highways 

2604-5. Using the driving support systems
Owners Manual_USA_M0C031_envehicle 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 
again to deactivate the cruise con-
trol.
If the cruise cont rol main switch is 
pressed and held for 1.5 seconds 
or more, the syste m turns on in 
constant speed control mode. 
(  P.263)
“Radar Ready”
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 
Setting the vehicle speed 
(vehicle-to-vehicle dis-
tance control mode)
Adjusting the set speed 

2624-5. Using the driving support systems
Owners Manual_USA_M0C031_en
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.
After the vehicle ahead of you 
starts off, press the “+RES” 
switch.
Your vehicle will also resume 
follow-up cruising if the acceler-ator pedal is depressed after the 
vehicle ahead of you starts off.
“Operate Cruise switch or 
Accelerator Pedal to 
Resume”
1 Pressing the cancel switch 
cancels the speed control.
The speed control is also canceled 
when the brake pedal is depressed. 
(When the vehicle has been 
stopped by system control, 
depressing the br ake pedal does 
not cancel the setting.)
2 Pressing the “+RES” switch 
resumes the cruise control 
and returns vehicle speed to 
the set speed.
Vehicle-to-vehicle dis-
tance settings (vehicle-to-
vehicle distance control 
mode)
Distance 
optionsVehicle-to-vehicle dis- tance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)
Resuming follow-up 
cruising when the vehicle 
has been stopped by sys-
tem control (vehicle-to-
vehicle distance control 
mode)
Canceling and resuming 
the speed control