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4 
4-6. Using other driving systems
Driving
OFF indicator will appear. 
• When the radar sensor becomes sig- nificantly misaligned (If the orientation  
of the radar sensor is shifted for any 
reason, readjustment is required.  Have the sensor adjusted at any  
authorized Toyota retailer or Toyota 
authorized repairer, or any reliable  repairer.) 
• When a large amount of snow or ice 
sticks to the rear bumper surface  around the radar sensors 
• When the vehicle is driven on a 
snow-covered road or in an environ- ment in which there are no objects  
around (such as in a desert) for a pro-
longed period of time • When the temperature around the  
radar sensors increases excessively 
due to long driving on uphill grades in  the summer, etc. 
• When the temperature around the 
radar sensors becomes extremely low • When the vehicle battery voltage low- 
ers
• When the vehicle voltage exceeds the  battery voltage rating
●The BSD/RCTA will resume operation once these conditions are corrected,  
and the BSD/RCTA OFF indicator will 
disappear. However, if the BSD/RCTA  OFF indicator appears for a prolonged  
period of time, have the system 
inspected at any authorized Toyota  retailer or Toyota authorized repairer,  
or any reliable repairer as soon as 
possible.
●The detectability of the radar sensors 
is restricted. The BSD/RCTA detec- tion may be impair ed and the system  
may not operate properly under the 
following conditions.
• When the rear bumper around the  radar sensors is distorted 
• When ice, snow or mud adheres to 
the rear bumper surface around the  radar sensors 
• When stickers, etc. are affixed on the 
areas of the radar sensors on the rear  bumper 
• During adverse weather conditions 
such as rain, snow or fog 
• When driving on wet roads such as  
snow-covered roads and through pud- dles
●The radar sensors may not detect or may have difficulty detecting the fol- 
lowing vehicles and objects.
• Small motorcycles, bicycles, pedestri- ans, stationary objects on the road or  
road side, etc.
• Vehicles with body shapes that the  radar may not reflect (vehicles with  
lower body height such as a trailer 
with no cargo and sports cars) • Vehicles that are not approaching  
your vehicle even though they are in 
the detection area (either on a neigh- boring lane to the rear or beside your  
vehicle when revers ing) (The system  
determines the presence of approach- ing vehicles based on data detected  
by the radar sensors.)
• Vehicles traveling at significantly dif- ferent speeds 
• Vehicles driving in parallel at almost 
the same speed as your vehicle for a  prolonged time 
• Oncoming vehicles
• Vehicles in a lane beyond the neigh- boring lane 
• Vehicles travelling at a significantly 
lower speed that you are trying to  overtake
●On a road with extremely narrow lanes, the system may detect vehicles  
driving in a lane next to the neighbor-
ing lane.
While the BSD/RCTA is active, the  
following item(s) will operate to 
alert the driver: 
 The BSD/RCTA approach indica- 
tor (when there are vehicles in 
the neighboring lanes). 
 The BSD/RCTA approach indica-
BSD/RCTA approach indica- 
tor/warning buzzer 

2324-6. Using other driving systems
“BSD/RCTA Disabled” 
BSD/RCTA OFF indicator
■System temporary stops due  
to reduced radar sensitivity 
This display appears when the  
detectability of the  radar sensors is  
reduced. Once the condition is cor-
rected, the system will recover from 
the temporary stop condition and 
the indicator  will disappear. 
If the indicator remains displayed  
for a prolonged time, have the sys-
tem inspected at any authorized 
Toyota retailer or  Toyota authorized  
repairer, or any reliable repairer. 
“BSD/RCTA Disabled Sensor  
Blocked” 
BSD/RCTA OFF indicator
■System malfunction 
This display appears when a mal- 
function occurs in the system. Con-
tact any authorized Toyota retailer 
or Toyota authorized repairer, or 
any reliable repairer and have the 
system inspected. 
“BSD/RCTA Disabled Check  
Owner's Manual” 
BSD/RCTA warning light 
To turn the BSD/RCTA system on  
and off, operate the multi-informa-
tion display ( P.377) or multimedia  
system screen (Refer to “Multime-
dia owner’s manual”). 
When the BSD/RCTA system is  
turned OFF, the BSD/RCTA OFF 
indicator on the multi-information 
display will illuminate.
A
A
BSD/RCTA warning light
To turn on/off the BSD/RCTA
A 

233
4 
4-6. Using other driving systems
Driving
●In the following cases, turn off the  BSD/RCTA system. The system may  
not operate properly due to blocked 
radar waves. • When towing the vehicle 
• When a bicycle carrier or other item is 
fitted to the rear of the vehicle • When using a chassis dynamometer  
or free roller device, etc.
• When running the engine and making  the wheels rotate while lifting up the  
vehicle
●If the engine switch is turned to OFF, 
the last known status of the system is 
maintained. For example, if the engine  switch is turned to OFF with the  
BSD/RCTA deactivated, the 
BSD/RCTA remains deactivated the  next time the engine switch is turned  
to ON.
The radar sensors, one on each  
side of the vehicle, are mounted 
inside the rear bumper. 
Radar sensors
If the radar sensors require repair or  replacement, or the bumper area around  
the radar sensors requires repair, paint-
work or replacement, contact any  authorized Toyota retailer or Toyota  
authorized repairer, or any reliable 
repairer for assistance.
Handling of radar sensors
NOTICE
To ensure correct operation of the 
BSD/RCTA, observe the following 
precautions.
●Always keep the bumper surface 
near the radar sensors clean.
●Do not affix any stickers or other 
items on the bumper surface near 
the radar sensors. For details, con- sult any authorized Toyota retailer  
or Toyota authorized repairer, or 
any reliable repairer.
●Do not modify the bumper near the 
radar sensors.
●Do not paint the bumper near the 
radar sensors.
●Do not expose the bumper near the 
radar sensors to strong impacts. If a  sensor becomes misaligned, a sys- 
tem malfunction ma y occur, includ- 
ing the inability to detect vehicles  entering the detection areas. If any  
strong shock is applied to the 
bumper, be sure to contact any  authorized Toyota retailer or Toyota  
authorized repairer, or any reliable 
repairer for inspection.
A 

2344-6. Using other driving systems
*: If equipped
The Reverse Automatic Braking (RAB)  
system records and st ores the following  data when automatic braking operates.  
It does not record conversations, per-
sonal information or other audio data.
●Distance from the object
●Vehicle speed
●Accelerator pedal operation status
●Brake pedal operation status
●Shift lever position
●Outside temperature
●The sensitivity setting of the sonar 
sensors 
Toyota and third parties contracted by  Toyota may acquire and use the  
recorded data for the purpose of vehicle 
research and development. Toyota and  third parties contracted by Toyota will  
not disclose or provide the acquired 
data to any other third party except  under the following conditions.
●The vehicle owner has given his/her consent.
●The disclosure/provision is based on a court order or other legally enforcea- 
ble request.
NOTICE
●Do not disassemble the radar sen-
sors.
Reverse Automatic Brak- 
ing (RAB) system*
Reverse Automatic Braking  
(RAB) is a system designed to 
help avoid collisions or reduce 
collision damage when revers-
ing the vehicle. If a wall or an 
obstacle is detected in the 
reversing direction, the system 
will notify the driver with a 
warning sound and may acti-
vate the vehicle’s brakes auto-
matically. 

235
4 
4-6. Using other driving systems
Driving
●Data that has been modified so that  
the user and vehicle cannot be identi- fied is provided to a research institu- 
tion for statistical processing or similar 
purposes.
The Reverse Automatic Braking  
(RAB) system will operate the fol- 
lowing 2 functions using 4 sonar 
sensors. 
 Sonar Audible Alarm
The Reverse Automatic Braking (RAB)  
system detects objec ts rearward and  
warns the driver by warning message 
on the multimedia system screen and 
warning beeps.
 Automatic Braking
The automatic braking detects objects  
rearward and if there is a high risk of a 
collision, the system decelerates the 
vehicle and controls the braking to 
reduce damage.
When reversing
When either strong automatic  
braking or torque control is 
applied to prevent collision (in 
this case, short  warning beeps or  
continuous warning beeps will 
sound) 
“Object Close Behind”
WA R N I N G
●Reverse Automatic Braking  (RAB)  
is not a system intended to replace 
the driver’s responsibility to check 
their surroundings for vehicles or  obstacles to avoid a collision.
●The driver is responsible for driving safely. Before revers ing, be sure to  
first depress the brake pedal and 
visually check the surroundings.
●There are some cases in which the 
vehicle cannot avoid collision,  because the system operation has  
limitations. The warning sound or 
automatic braking may be delayed  or may not operate at all even when  
an obstacle is present.
●Make sure to set the Automatic 
Braking to OFF when the vehicle is 
on the free roller or on the chassis  dynamometer. Otherwise, the vehi- 
cle may move and it may cause an 
accident.
●Make sure to set the Automatic 
Braking to OFF when towing the  vehicle. Otherwise, the vehicle may  
move and it may cause an accident.
●The system is not designed to 
detect people (including children), 
animals or other moving objects.
●Depending on the vehicle condition 
or the surrounding environment, the  sonar sensor’s ability to detect  
objects may become unstable.
Reverse Automatic Braking  
(RAB) system overviewA 

237
4 
4-6. Using other driving systems
Driving
have the system inspected. 
• A sticker, paint, or a chemical is  applied to the sonar sensors or the  
rear bumper near the sonar sensor.
• The rear bumper is modified. • The rear bumper has been removed  
and attached.
• The ground clearance is changed due  to the vehicle’s loading condition or  
modification.
• There is damage to the sonar sensors  or the rear bumper near the sonar  
sensor.
• The rear bumper is exposed to strong  impact, or the rear bumper is  
deformed.
●On a steep hill,  the system’s auto- 
matic braking ability will be reduced.
●The system is designed to avoid colli-
sions by automatic hard braking when 
the vehicle’s reversing speed is less  than approximately 5 km/h (3 mph).  
However, the system does not guar-
antee that the vehicle will be able to  avoid collisions in any situation.
●If the vehicle is reversed at an extremely slow speed, the driver’s  
operation may be prioritized. In this 
case, automatic braking will not oper- ate.
●The system may not be able to detect and apply the brake with the following  
objects.
• Sharp or thin objects such as poles,  fences and ropes which may not  
reflect the sound wave emitted from 
the sonar sensor. • Objects that are too close to the rear  
bumper when the shift lever is set to 
R. • Objects with a surface which may not  
reflect the sound wave emitted from 
the sonar sensor such as a chain link 
fence.
●Objects the system is not designed to 
detect and apply brake. • Pedestrians. 
• Moving objects including moving vehi-
cles. • Objects which absorbs sound waves  
such as cloth or snow. 
• Objects whose surface has a diagonal  
angle. • Objects that are low to the ground  
such as parking blocks.
• Objects that are high above the  ground such as objects hanging from  
above.
• Objects that are out of range of the  center of the vehicle in the horizontal  
direction.
• Objects that are not in a vertical direc- tion. 
• Objects which are not perpendicular 
to the ground. • Objects which are not directly in the  
traveling direction of the vehicle.
• Objects which are uneven or wavy.
●When reversing the vehicle, the func-
tions may not be able to work properly  or may cause a system malfunction if  
the following conditions exist. 
High frequency sound from other  
sources are nearby:
• Horn sound from another vehicle. • Engine sound from other vehicles. 
• Sound of an air brake.
• Vehicle detection equipment or a  sonar from another vehicle. 
• A sound wave with a frequency similar 
to the vehicle’s system is transmitted  near by. 
• A vehicle equipped with the same sys-
tem is reversing toward your reversing  direction.
●Weather conditions:• Extremely high or extremely low tem- 
peratures in which the area near the 
sonar sensor becomes too hot or too  cold to operate. 
• The sonar sensors or the rear bumper 
near the sonar sensors are exposed  to heavy rain or a significant amount  
of water.
• Fog, snow or sandstorm, etc.
• Air is moving rapidly such as when a  strong wind is blowing.
●Parts attached to the rear bumper near the sonar sensor: 
• Commercial electronic parts (fog light, 
fender pole, radio antenna) or com- mercial attachment parts (trailer hitch,  

2384-6. Using other driving systems 
bicycle carrier, bumper guard) are  
attached. • Parts that emit high frequency sound,  
such as a horn or speaker, are 
attached.
●Vehicle conditions:
• Ice, snow or mud is adhered to the  sonar sensors or the rear bumper  
near the sonar sensor.
• The vehicle is significantly inclined. • The ground clearance is significantly  
reduced due to the vehicle’s loading 
condition, etc. • When the sonar sensor is misaligned  
due to a collision or an accident.
●Surrounding environment:
• A cloth banner, flag, hanging branch 
or railroad crossing bars are present  in the reversing direction. 
• When reversing on a gravel or grassy 
area. • When reversing in an area where  
objects or walls are adjacent to the 
vehicle such as narrow tunnels, nar- row bridges, narrow roads or narrow  
garages.
• Wheel track or hole is present in the  ground of the reversing direction. 
• When reversing over a drainage cover 
(grating cover). 
• The path of the reversing direction is  
inclined such as on a steep uphill. 
• When reversing downhill. 
• Reversing in a garage with a low ceil- 
ing or a tunnel. 
• A curb or step is present in the revers- 
ing direction. 
• There is a patch of snow rearward. 
• There is a puddle of water. 
• There is an obstacle that is next to an  
object. 
• Going back along a wall.
• The area where the road starts touch- 
ing dirt and snow. 
• When reversing on an uneven road.
●In circumstances su ch as the follow- ing, it may not be possible to avoid a  
collision even when the system oper-
ates normally. • Roads are slippery. 
• The tire air pressure is not correct.
• The tires have become worn. • Tire chains are installed. 
• Tires which are not the designated 
size are installed. • Emergency repairs were performed  
using a puncture repair kit.
• The suspension was modified. • Vehicle driving is unstable due to acci- 
dent or malfunction.
• The brake system warn ing light is illu- 
minated. 

241
4 
4-6. Using other driving systems
Driving
Depress brake pedal warning 
“Apply Brake To Hold Position”
The Sonar Audible Alarm and Automatic  
Braking are different in operation condi-
tions. Therefore there are cases in  which only one of these functions will  
activate.
■After the vehicle is stopped by  
the system 
After the brake pedal is depressed,  
the RAB OFF indicator will illumi-
nate and the syst em will temporar- 
ily stop operating. The RAB OFF 
indicator will turn off when the shift 
lever is shifted to a position other 
than R. 
The system will operate again the  
next time the shift le ver is shifted to  
R.
●The Reverse Automatic Braking  (RAB) system will be  disabled in the  
following situations.
• When 3 seconds pass after the vehi- cle is stopped 
• When any door is opened
• When the RAB warning light is illumi- nated 
• When the RAB OFF indicator is illumi-
nated
●The Reverse Automatic Braking 
(RAB) system may stop operating  temporarily in the following cases and  
the RAB OFF indicator will illuminate.
• Ice, snow or mud is adhered to the  sonar sensors or the rear bumper  
near the sonar sensor
• Objects are too close to the rear  bumper when the shift lever is set to R 
• The system detects sounds of a simi-
lar frequency to the RAB sonar • When the TRC and VSC mode are  
turned off
• When in TRACK mode and the  Pre-Collision Braking System has  
been turned off
The Reverse Automatic Braking  
(RAB) system can be temporarily 
canceled by any of the following 
operation. 
 While the vehicle is stopped by 
WA R N I N G
Depress the brake pedal immediately  after the system stops the vehicle by  
automatic braking. Depending on the 
conditions of the road surface and 
tires, the vehicle may not remain  stopped, possibly leading to an acci- 
dent.
A
Canceling the Reverse Auto- 
matic Braking (RAB) sys- 
tem operation