
287
4
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
Driving
Toyota parking assist-sensor will be  
muted simultaneously. 
Mute will be canceled automatically in  
the following situations:
●When the shift lever is changed.
●When the vehicle speed exceeds a  certain speed.
●When there is a malfunction in a sen-sor or the system is temporarily  
unavailable.
●When the operating function is dis-
abled manually.
●When the engine switch is turned off.
■Conditions under which the system 
will not detect a vehicle 
The RCTA function is not designed to  detect the following types of vehicles  
and/or objects.
●Vehicles approaching from directly 
behind
●Vehicles backing up in a parking 
space next to your vehicle
●Vehicles that the sensors cannot 
detect due to obstructions
●Guardrails, walls, signs, parked vehi- 
cles and similar stationary objects*
●Small motorcycles, bicycles, pedestri-
ans, etc.*
●Vehicles moving away from your vehi- cle
●Vehicles approaching from the park- 
ing spaces next to your vehicle*
●The distance between the sensor and  approaching vehicle gets too close*: Depending on conditions, detection of  
a vehicle and/or object may occur.
■Situations in which the system may  
not operate properly 
The RCTA function may not detect vehi- cles correctly in the following situations:
●When the sensor is misaligned due to a strong impact to the sensor or its  
surrounding area
●When mud, snow, ice, a sticker, etc., 
is covering the sensor or surrounding  area on the position above the rear bumper
●When driving on a road surface that is wet with standing water during bad  
weather, such as heavy rain, snow, or  fog
●When multiple vehicles are approach-ing with only a small gap between each vehicle
●When a vehicle is approaching at high speed
●When equipment that may obstruct a sensor is installed, such as a towing  
eyelet, bumper protector (an addi- tional trim strip, etc.), bicycle carrier, or snow plow
●When backing up on a slope with a sharp change in grade
●When backing out of a sharp angle parking spot 

288
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
●When towing a trailer
●When there is a significant difference  in height between your vehicle and  
the vehicle that enters the detection  area
●When a sensor or the area around a sensor is extremely hot or cold
●If the suspension has been modified or tires of a size other than specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
●When turning while backing up
●When a vehicle turns into the detec-tion area
■Situations in which the system may operate even if there is no possibil-ity of a collision 
Instances of the RCTA function unnec- essary detecting a vehicle and/or object may increase in the following situations:
●When the parking space faces a street  
and vehicles are being driven on the  street
●When the distance between your vehi-cle and metal objects, such as a guardrail, wall, sigh, or parked vehicle,  
which may reflect electrical waves  toward the rear of the vehicle, is short
●When equipment that may obstruct a sensor is installed, such as a towing eyelet, bumper protector (an addi- 
tional trim strip, etc.), bicycle carrier,  or snow plow
●When a vehicle passes by the side of your vehicle
●When a detected vehicle turns while approaching the vehicle 

289
4
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
Driving
●When there are spinning objects near  
your vehicle such as the fan of an air  conditioning unit
●When water is splashed or sprayed toward the rear bumper, such as from a sprinkler
●Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain  
water on the road surface, etc.)
●When the distance between your vehi-
cle and a guardrail, wall, etc., that  enters the detection area is short
●Gratings and gutters
●When a sensor or the area around a  
sensor is extremely hot or cold
●If the suspension has been modified 
or tires of a size other than specified  are installed
●If the front of the vehicle is raised or lowered due to the carried load
*: If equipped
■Parking Support Brake func- 
tion (static objects) 
 P. 2 9 4
■Parking Support Brake func- 
tion (rear-crossing vehicles) 
 P. 2 9 7
PKSB (Parking Support  
Brake)*
The Parking Support Brake  
system consists of the follow- 
ing functions that operate  
when driving at a low speed or  
backing up, such as when  
parking. When the system  
determines that the possibility  
of a collision with a detected  
object is high, a warning oper- 
ates to urge the driver to take  
evasive action. If the system  
determines that the possibility  
of a collision with a detected  
object is extremely high, the  
brakes are automatically  
applied to help  avoid the colli- 
sion or help reduce the impact  
of the collision.
PKSB (Parking Support  
Brake) system 

290
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
WARNING
■Cautions regarding the use of  the system 
Do not overly rely on the system, as  doing so may lead to an accident. 
Always drive while checking the  
safety of the surroundings of the vehi- cle. 
Depending on the vehicle and road  
conditions, weather, etc., the system  may not operate. 
The detection capabilities of sensors  
and radars are limited. Always drive  while checking the safety of the sur-roundings of the vehicle.
●The driver is solely responsible for safe driving. Always drive carefully,  
taking care to observe your sur- roundings. The Parking Support Brake system is designed to pro- 
vide support to lessen the severity  of collisions. However, it may not operate in some situations.
●The Parking Support Brake system is not designed to stop the vehicle  
completely. Additionally, even if the  system has stopped the vehicle, it is necessary to depress the brake  
pedal immediately as brake control  will be canceled after approximately 2 seconds.
●It is extremely dangerous to check the system operations by intention- 
ally driving the vehicle into the  direction of a wall, etc. Never attempt such actions.
■When to disable the Parking Sup-port Brake 
In the following situations, disable the  Parking Support Brake as the system may operate even though there is no  
possibility of a collision.
●When inspecting the vehicle using 
a chassis roller, chassis dynamo or  free roller
●When loading the vehicle onto a boat, truck or other transport vessel
●If the suspension has been modi-fied or tires of a size other than specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
●When equipment that may obstruct a sensor is installed, such as a tow- 
ing eyelet, bumper protector (an  additional trim strip, etc.), bicycle carrier, or snow plow
●When using automatic car washing devices
●If the vehicle cannot be driven in a stable manner, such as when the  
vehicle has been in an accident or  is malfunctioning
●When the vehicle is driven in a sporty manner or off-road
●When the tires are not properly inflated
●When the tires are very worn
●When a tire chains, compact spare  
tire or an emergency tire puncture  repair kit is used
NOTICE
■If “PKSB Unavailable” is dis- 
played on the multi-information  display and the PKSB OFF indi-cator is on 
If this message is displayed immedi- ately after the engine switch is changed to ON, operate the vehicle  
carefully, paying attention to your sur- roundings. It may be necessary to drive the vehicle for a certain amount  
of time before the system returns to  normal. (If the system is not return to normal after driving for a while, clean  
the sensors and their surrounding  area on the bumpers.) 

293
4
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
Driving
Engine output 
Braking force 
Time
Engine output restriction control  
begins operating (System deter- 
mines that possibility of collision 
with detected object is high) 
Brake control begins operating  
(System determines that possi- 
bility of collision with detected 
object is extremely high)
■If the Parking Support Brake has  operated 
If the vehicle is stopped due to operation  
of the Parking Support Brake, the Park- ing Support Brake will be disabled and the PKSB OFF indicator will illuminate. If  
the Parking Support Brake operates  unnecessarily, brake control can be can-celed by depressing the brake pedal or  
waiting for approximately 2 seconds for  it to automatically be canceled. Then, the vehicle can be operated by depress- 
ing the accelerator pedal.
■Re-enabling the Parking Support  Brake 
To re-enable the Parking Support Brake  
when it is disabled due to operation of  the Parking Support Brake, either enable the system again ( P.291), or  
turn the engine switch off and then back  
to ON. Additionally, if the object  
becomes no longer in the traveling  direction of the vehicle or if the traveling direction of the vehicle changes (such  
as changing from moving forward to  backing up, or from backing up to mov-ing forward), the system will be re- 
enabled automatically.
■If “PKSB Unavailable” is displayed  on the multi-information display and the PKSB OFF indicator is on 
If the vehicle is stopped due to operation  of the Parking Support Brake, the Park-ing Support Brake will be disabled and  
the PKSB OFF indicator will illuminate.
●A sensor may be covered with water 
drops, ice, snow, dirt, etc. Remove the  water drops, ice, snow, dirt, etc., from the sensor to return the system to nor- 
mal. Also, due to ice forming on a sensor at low temperatures, a warning message  
may be displayed or the sensor may  not be able to detect an object. Once the ice melts, the system will return to  
normal.
●If this message is displayed, a sensor 
on the front or rear bumper may be  dirty. Clean the sensors and their sur-rounding area on the bumpers.
●If this message continues to be dis-played even after cleaning the sensor,  
or is displayed even though the sen- sor is clean, have the vehicle inspected by any authorized Toyota  
retailer or Toyota authorized repairer,  or any reliable repairer. 

294
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
*: If equipped
This function will operate in situations such as the following if an object is  
detected in the traveling direction of the vehicle.
■When traveling at a low speed  and the brake pedal is not  
depressed, or is depressed late
Parking Support Brake function (static objects)*
If the sensors detect a static  object, such as a wall, in the traveling  
direction of the vehicle and the system determines that a colli sion  
may occur due to the vehicle suddenly moving forward due to an  
accidental accelerator pedal operation, the vehicle moving the  unin- 
tended direction due to the wrong  shift position being selected, or  
while parking or traveling at low speeds, the system will opera te to  
lessen the impact with the detected static object and reduce th e  
resulting damage.
Examples of function operation 

295
4
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
Driving
■When the accelerator pedal is depressed excessively
■When the vehicle moves in the unintended direction due to the  
wrong shift position being selected 
 P. 2 7 7
Types of sensors
WARNING
■To ensure the system can oper- ate properly 
 P. 2 7 9
■If the Parking Support Brake  function (static objects) oper- 
ates unnecessarily, such as at a  railroad crossing 
 P. 2 9 3
■Notes when washing the vehicle 
 P. 2 7 9 

296
CV Owner's Manual_Europe_M52N20_en
4-5. Using the driving support systems
■The Parking Support Brake func- tion (static object) will operate  
when 
The function will operate when the  PKSB OFF indicator is not illuminated or  
flashing ( P.82, 409) and all of the fol- lowing conditions are met:
●Engine output restriction control• The Parking Support Brake is enabled. 
• The vehicle speed is approximately 15  km/h (9 mph) or less.• There is a static object in the traveling  
direction of the vehicle and approxi- mately 2 to 4 m (6 to 13 ft.) away.• The Parking Support Brake deter- 
mines that a stronger-than-normal  brake operation is necessary to avoid a collision.
●Brake control• Engine output restriction control is  
operating. • The Parking Support Brake deter-mines that an immediate brake opera- 
tion is necessary to avoid a collision.
■The Parking Support Brake func- tion (static objects) will stop oper-ating when 
The function will stop operating if any of  the following conditions are met:
●Engine output restriction control• The Parking Support Brake is dis- 
abled. • The system determines that the colli-sion has become avoidable with nor- 
mal brake operation. • The static object is no longer approxi-mately 2 to 4 m (6 to 13 ft.) away from  
the vehicle or in the traveling direction  of the vehicle.
●Brake control• The Parking Support Brake is dis-abled. 
• Approximately 2 seconds have  elapsed since the vehicle was stopped by brake control. 
• The brake pedal is depressed after  the vehicle is stopped by brake con-trol. 
• The static object is no longer approxi- 
mately 2 to 4 m (6 to 13 ft.) away from  the vehicle or in the traveling direction of the vehicle.
■Re-enabling the Parking Support  
Brake function (static objects) 
 P. 2 9 3
■Detection range of the Parking Sup- port Brake function (static objects) 
The detection range of the Parking Sup- port Brake function (static objects) dif-fers from the detection range of the  
Toyota parking assist-sensor. ( P.282)  Therefore, even if the Toyota parking assist-sensor detects an object and pro- 
vides a warning, the Parking Support  Brake function (static objects) may not start operating.
■Objects which the system may not  
be properly detected 
 P. 2 8 0
■Toyota parking assist-sensor  buzzer 
Regardless of whether the Toyota park- ing assist-sensor function is enabled or not ( P.278), if the Parking Support  
Brake function (static objects) is enabled  ( P.291), the front or rear sensors  detect an object and brake control and  
engine output restriction control are per- formed, the Toyota parking assist-sen-sor buzzer will sound to notify the driver  
of the approximate distance to the  object.
■Situations in which the system may not operate properly 
 P. 2 8 0
■Situations in which the system may  operate even if there is no possibil-ity of a collision 
 P. 2 8 1