Get Driving -> RCTA (Rear Cross Traffic Alert) Guide for Toyota 4 Runner SUV Fifth Generation (2010-2024)

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4-5. Using the driving support systems

RCTA (Rear Cross Traffic Alert)

The RCTA function uses the BSM radar sensors installed on the

inner side of the rear bumper. This function is intended to assist

the driver in checking areas that are not easily visible when

backing up.

System components

1

Multi-information display

Turning the RCTA function on/off.

2

Outside rear view mirror indica-

tors

When a vehicle approaching from

the right or left at the rear of the

vehicle is detected, both outside

rear view mirror indicators will

flash.

3

4

Navigation system screen

If a vehicle approaching from the

right or left at the rear of the vehicle

is detected, the RCTA icon (P.

288) for the detected side will be

displayed.

RCTA buzzer

If a vehicle approaching from the right or left at the rear of the vehicle is

detected, a buzzer will sound.

Turning the RCTA function on/off

The RCTA function can be enabled/disabled on

multi-information display. (P. 95)

screen of the

When the RCTA function is disabled, the “RCTA OFF” indicator will come

on. Each time the engine switch is turned off then changed to the IGNI-

TION ON mode, the RCTA function will be enabled automatically.

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4-5. Using the driving support systems

■Outside rear view mirror indicator visibility

In strong sunlight, the outside rear view mirror indicator may be difficult to

see.

■Hearing the RCTA buzzer

The RCTA buzzer may be difficult to hear over loud noises, such as if the

audio system volume is high.

■When “RCTA Unavailable” is shown on the multi-information display

Water, snow, mud, etc., may be attached to the rear bumper around the sen-

sors (P. 272). Removing the water, snow, mud, etc., from the vicinity of the

sensor area should return it to normal. Also, the sensor may not function nor-

mally when used in extremely hot or cold weather.

■When “RCTA Malfunction Visit Your Dealer” is shown on the multi-infor-

mation display

There may be a sensor malfunction or misaligned. Have the vehicle

inspected by your Toyota dealer.

■Radar sensors

4

P. 272

■Customization

Some functions can be customized. (P. 558)

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288

RCTA function

4-5. Using the driving support systems

■ Operation of the RCTA function

The RCTA function uses radar sensors to detect vehicles

approaching from the right or left at the rear of the vehicle and

alerts the driver of the presence of such vehicles by flashing the

outside rear view mirror indicators and sounding a buzzer.

1

2

Approaching vehicles

Detection areas of approaching vehicles

■ RCTA icon display

When a vehicle approaching

from the right or left at the rear

of the vehicle is detected, the

following will be displayed on

the navigation system screen.

Example:

Vehicles

are

approaching from both sides of

the vehicle.

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4-5. Using the driving support systems

■ RCTA function detection areas

The areas that vehicles can be detected in are outlined below.

The buzzer can alert the driver of faster vehicles approaching from

farther away.

Example:

Approaching vehicle

Speed

Approximate alert distance

130 ft (40 m)

1

4

Fast

35 mph (56 km/h)

5 mph (8 km/h)

Slow

18 ft (5.5 m)

WARNING

■Cautions regarding the use of the system

There is a limit to the degree of recognition accuracy and control perfor-

mance that this system can provide, do not overly rely on this system. The

driver is always responsible for paying attention to the vehicle’s surround-

ings and driving safely. (P. 274)

■To ensure the system can operate properly

P. 272

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4-5. Using the driving support systems

■The RCTA function is operational when

The RCTA function operates when all of the following conditions are met:

●The engine switch is in the IGNITION ON mode.

●The RCTA function is on.

●The shift lever is in R.

●The vehicle speed is less than approximately 9 mph (15 km/h).

●The approaching vehicle speed is between approximately 5 mph (8 km/h)

and 35 mph (56 km/h).

■Muting a buzzer temporarily

A mute button will be displayed on the multi-information display when a vehi-

cle or an object is detected. To mute the buzzer, press. The buzzers for the

RCTA function and Toyota parking assist-sensor will be muted simultane-

ously.

Mute will be automatically canceled in the following situations:

●When the shift position is changed.

●When there is a malfunction in a sensor or the system is temporarily

unavailable.

●When the function is disabled while it is operating.

●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 vehicles and similar stationary objects}*

●Small motorcycles, bicycles, pedestrians, etc.*

●Vehicles moving away from your vehicle

^{●Vehicles approaching from the parking spaces next to your vehicle}*

●The distance between the sensor and approaching vehicle gets too close

*: Depending on the conditions, detection of a vehicle and/or object may

occur.

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4-5. Using the driving support systems

■Situations in which the system may not operate properly

The RCTA function may not detect vehicles correctly in the following situa-

tions:

●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 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 approaching 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 additional trim strip, etc.), bicycle carrier, or

snow plow

●When backing up on a slope with a

sharp change in grade

4

●When backing out of a sharp angle park-

ing spot

●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

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4-5. Using the driving support systems

●When turning while backing up

●When a vehicle turns into the detection

area

■Situations in which the system may operate even if there is no possibil-

ity of a collision

Instances of the RCTA function unnecessarily 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 vehicle

and metal objects, such as a guardrail,

wall, sign, 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 additional trim strip, etc.), bicycle carrier, or

snow plow

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4-5. Using the driving support systems

●When a vehicle passes by the side of

your vehicle

●When a detected vehicle turns while

approaching the vehicle

●When there are spinning objects near your vehicle such as the fan of an air

conditioning unit

4

●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 vehicle 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

4RUNNER (U)

Driving -> RCTA (Rear Cross Traffic Alert) for Your Toyota 4 Runner SUV Fifth Generation (2010-2024)

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