
371
5 5-5. Using the driving support systems
Driving
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. 
The buzzer also sounds even if the alert 
type is set to “Steering wheel vibration”.
●When the system determines that the 
vehicle may not turn and instead 
depart from its lane while driving 
around a curve
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” 

375
5 5-5. Using the driving support systems
Driving
system will notify the driver.
When the vehicle speed exceeds 
the speed notification threshold 
of the speed limit sign displayed, 
the sign display will be empha-
sized and a buzzer will sound.
When the RSA system recog-
nizes a no-entry sign and detects 
that the vehicle has entered a 
no-entry area based on the map 
information of the navigation sys-
tem, the no-entry sign flashes 
and a buzzer will sound. (For 
vehicles with navigation system)
If it is detected that your vehicle 
is overtaking when a no overtak-
ing sign is displayed on the multi-
information display, the dis-
played sign will flash and a steer-
ing wheel will vibrate.
Depending on the situation, traffic 
environment (traffic direction, 
speed unit) may be detected incor-
rectly and a notification function 
may not operate properly.
■Setting procedure
P.186
■Automatic turn-off of RSA sign dis-
play
One or more signs automatically turn off 
in the following situations.
●No sign has been recognized for a 
certain distance.
●The road changes due to a left or right 
turn, etc.
■Conditions in which the function 
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 mal-
function.
●The front camera is misaligned due to 
a strong impact being applied to the 
sensor, etc.
●Dirt, snow, stickers, etc. are on the 
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 camera.
●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 cur-
rently 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 compati-
ble sign is recognized.
●Side road speed signs may be 
detected and displayed (if positioned 
in sight of the front camera) while the 
vehicle is traveling on the main road.
●Roundabout exit road speed signs 
may be detected and displayed (if 
positioned in sight of the front camera) 
while traveling on a roundabout.
●The front of the vehicle is raised or 
lowered due to the carried load.
●The surrounding brightness is not suf-
ficient or changes suddenly.
●When a sign intended for trucks, etc. 
is recognized.
●The vehicle is driven in a country with 
a different direction of traffic.
●The navigation system map data is  

377
5 
5-5. Using the driving support systems
Driving
Indicators
■Operation switches 
Vehicle-to-vehicle distance  
switch 
“+RES” switch 
Cruise control main switch
Cancel switch
“-SET” switch
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.386
C
A
B
C
D
E
• Conditions under which the vehicle- to-vehicle distance control mode may not function correctly: P.387
●Set the speed appropriately  depending on the speed limit, traffic  
flow, road conditions, weather con- ditions, etc. The driver is responsi-ble for checking the set speed.
●Even when the system is function-ing normally, the condition of the  
preceding vehicle as detected by  the system may differ from the con-dition observed by the driver.  
Therefore, the driver must always  remain alert, assess the danger of each situation and drive safely.  
Relying solely on this system or  assuming the system ensures safety while driving can lead to an  
accident, resulting in death or seri- ous injury.
●Switch the dynamic radar cruise control with full-speed range setting to off, using the cruise control main  
switch when not in use. 

3785-5. Using the driving support systems
WARNING
■Cautions regarding the driving  assist systems 
Observe the following precautions, as  there are limitations to the assistance provided by the system. Failure to do  
so may cause an accident resulting in  death or serious injury.
●Assisting the driver to measure fol- 
lowing distance 
The dynamic radar cruise control with  
full-speed range is only intended to 
help the driver in determining the fol-
lowing distance between the driver’s 
own vehicle and a designated vehicle 
traveling ahead. It is not a mechanism 
that allows careless or inattentive 
driving, and it is not a system that can 
assist the driver in low-visibility condi-
tions. 
It is still necessary for driver to pay  
close attention to the vehicle’s sur-
roundings.
●Assisting the driver to judge proper  following distance 
The dynamic radar cruise control with  
full-speed range determines whether 
the following 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 prevent or avoid 
collisions with vehicles 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 con- trol with full-speed range in any of the  
following situations. Doing so may  result in inappropriate speed control and could cause an accident resulting  
in death or serious injury.
●Roads where there are pedestrians,  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 driving down a steep hill.
●At entrances to freeways and high- ways
●When weather conditions are bad enough that they may prevent the sensors from detecting correctly  
(fog, snow, sandstorm, heavy rain,  etc.) 

385
5 5-5. Using the driving support systems
Driving
speed limit
Press and hold the “-SET” switch.
Dynamic Radar Cruise Control with 
Road Sign Assist can be 
enabled/disabled in the   screen 
on the multi-information display. 
(P.186)
■Dynamic radar cruise control with 
full-speed range can be set when
●The shift lever is in D.
●The desired set speed can be set 
when the vehicle speed is approxi-
mately 30 km/h (20 mph) or more. 
(However, when the vehicle speed is 
set while driving at below approxi-
mately 30 km/h [20 mph], the set 
speed will be set to approximately 30 
km/h [20 mph].)
■Accelerating after setting the vehi-
cle speed
The vehicle can accelerate by operating 
the accelerator pedal. After accelerat-
ing, the set speed resumes. However, 
during vehicle-to-vehicle distance con-
trol mode, the vehicle speed may 
decrease below the set speed in order 
to maintain the distance to the preced-ing vehicle.
■When the vehicle stops while fol-
low-up cruising
●Pressing the “+RES” switch while the 
vehicle ahead stops will resume fol-
low-up cruising if the vehicle ahead 
starts off within approximately 3 sec-
onds after the switch is pressed.
●If the vehicle ahead starts off within 3 
seconds after your vehicle stops, fol-
low-up cruising will be resumed.
■Automatic cancelation of vehicle-
to-vehicle distance control mode
Vehicle-to-vehicle distance control 
mode is automatically canceled in the 
following situations.
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is 
turned off.
●The sensor cannot detect correctly 
because it is covered in some way.
●Pre-collision braking is activated.
●The parking brake is operated.
●The vehicle is stopped by system con-
trol on a steep incline.
●The following are detected when the 
vehicle has been stopped by system 
control:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for 
about 3 minutes
If vehicle-to-vehicle distance control 
mode is automatically canceled for any 
reasons other than the above, there 
may be a malfunction in the system. 
Contact any authorized Toyota retailer 
or Toyota authorized repairer, or any 
reliable repairer.
■Automatic cancelation of constant 
speed control mode
Constant speed control mode is auto-
matically canceled in the following situa-
tions:
Enabling/Disabling the 
Dynamic Radar Cruise Con-
trol with Road Sign Assist 
(vehicles with RSA) 

3865-5. Using the driving support systems
●Actual vehicle speed is more than  
approximately 16 km/h (10 mph)  below the set vehicle speed.
●Actual vehicle speed falls below approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●Pre-collision braking is activated.
●The parking brake is operated. 
If constant speed control mode is auto- 
matically canceled for any reasons other 
than the above, there may be a malfunc-
tion in the system. Contact any autho-
rized Toyota retailer or Toyota 
authorized repairer, or any reliable 
repairer.
■The Dynamic Radar Cruise Control  with Road Sign Assist may not  
operate properly when (vehicles  with RSA) 
As the Dynamic Radar Cruise Control  
with Road Sign Assist may not operate  properly in conditions in which RSA may not operate or detect correctly  
( P.375), when using this function,  make sure to check the speed limit sign displayed. 
In the following situations, the set speed  may not be changed to the recognized speed limit by pressing and holding the  
“+RES”/“-SET” switch.
●If speed limit information is not avail-
able
●When the recognized speed limit is 
the same as the set speed
●When the recognized speed limit is 
outside of the speed range that the  dynamic radar cruise control system can operate
■Brake operation 
A brake operation sound may be heard  and the brake pedal response may change, but these are not malfunctions.
■Warning messages and buzzers for  
dynamic radar cruise control with  full-speed range 
Warning messages and buzzers are  
used to indicate a system malfunction or  to inform the driver of the need for cau-tion while driving. If a warning message  
is shown on the multi-information dis- play, read the message and follow the instructions. ( P.353, 578)
■When the sensor may not be cor- 
rectly detecting the vehicle ahead 
In the case of the following and depend- ing on the conditions, operate the brake  
pedal when deceleration of the system  is insufficient or operate the accelerator pedal when acceleration is required. 
As the sensor may not be able to cor- rectly detect these types of vehicles, the approach warning ( P.383) may not be  
activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the  same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the  
surrounding vehicles hinders the  detecting of the sensor
●When your vehicle is pointing upwards (caused by a heavy load in the luggage compartment, etc.) 

387
5 5-5. Using the driving support systems
Driving
●Preceding vehicle has an extremely 
high ground clearance
■Conditions under which the vehi-
cle-to-vehicle distance control 
mode may not function correctly
In the case of the following conditions, 
operate the brake pedal (or accelerator 
pedal, depending on the situation) as 
necessary.
As the sensor may not be able to cor-
rectly detect vehicles ahead, the system 
may not operate properly.
●When the road curves or when the 
lanes are narrow
●When steering wheel operation or 
your position in the lane is unstable
●When the vehicle ahead of you decel-
erates suddenly
●When driving on a road surrounded by 
a structure, such as in a tunnel or on a 
bridge
●While the vehicle speed is decreasing 
to the set speed after the vehicle 
accelerates by depressing the accel-
erator pedal 

393
5 
5-5. Using the driving support systems
Driving
*: If equipped
Multi-information display
Turning the BSM function/RCTA func- 
tion on/off.
Outside rear view mirror indica- 
tors
BSM (Blind Spot Moni- 
tor)*
The Blind Spot Monitor is a  
system that has 2 functions: 
 The BSM (Blind Spot Monitor)  
function 
Assists the driver in making a  
decision when changing lanes 
 The RCTA (Rear Crossing  
Traffic Alert) function (if  
equipped) 
Assists the driver when backing  
up 
These functions use the same  
sensors.
WARNING
■Cautions regarding the use of  
the BSM function 
The driver is solely responsible for  
safe driving. Always drive safely, tak- ing care to observe your surround-ings. 
The BSM function is a supplementary  function which alerts the driver that a vehicle is in a blind spot of the outside  
rear view mirrors or is approaching  rapidly from behind into a blind spot. Do not overly rely on the BSM func- 
tion. As the function cannot judge if it  is safe to change lanes, over reliance could lead to an accident resulting in  
death or serious injury.  
As the system may not function cor- rectly under certain conditions, the  
driver’s own visual confirmation of  safety is necessary.
■Cautions regarding the use of the RCTA function 
The driver is solely responsible for  
safe driving. Always drive safely, tak- ing care to observe your surround-ings. 
The RCTA function is only a supple- mentary function which alerts the driver that a vehicle is approaching  
from the right or left at the rear of the  vehicle. As the RCTA function may not function correctly under certain  
conditions, the driver’s own visual  confirmation of safety is necessary. 
Over reliance on this function may  
lead to an accident resulting death or  serious injury.
System components 
A
B