Get Driving -> Using the driving support systems-RCTA Rear Cross Traffic Alert function Guide for Toyota Corolla 4 Door 2023

237

4-5. Using the driving support systems

Monitor is turned on

RCTA (Rear Cross Traf-

• When towing with the vehicle

fic Alert) function

●Instances of the Blind Spot Moni-

tor unnecessarily detecting a vehi-

cle and/or object may increase in

the following situations:

: If equipped

The RCTA function uses the

BSM rear side radar sensors

installed behind the rear

bumper. This function is

intended to assist the driver

in checking areas that are

not easily visible when

backing up.

• When the sensor is misaligned

due to a strong impact to the sen-

sor or its surrounding area

• When the distance between your

vehicle and a guardrail, wall, etc.

that enters the detection area is

short

• When driving up and down con-

secutive steep inclines, such as

hills, dips in the road, etc.

• When vehicle lanes are narrow, or

when driving on the edge of a

lane, and a vehicle traveling in a

lane other than the adjacent lanes

enters the detection area

• When driving on roads with sharp

bends, consecutive curves, or

uneven surfaces

• When the tires are slipping or

spinning

• When the distance between your

vehicle and a following vehicle is

short

WARNING

■Cautions regarding the use of

the system

The driver is solely responsible for

safe driving. Always drive safely,

taking care to observe your sur-

roundings. The RCTA function is

only a supplementary function

which alerts the driver that a vehi-

cle is approaching from the right

or left at the rear of the vehicle. As

the RCTA function may not func-

tion correctly under certain condi-

tions, the driver’s own visual

• When an accessory (such as a

bicycle carrier) is installed to the

rear of the vehicle

• When towing with the vehicle

confirmation of safety is neces-

sary. Over reliance on this func-

tion may lead to an accident

resulting death or serious injury.

System components

Meter control switches

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4-5. Using the driving support systems

Turning the RCTA function on/off.

Turning the RCTA func-

tion on/off

When the RCTA function is dis-

abled, the RCTA OFF indicator illu-

minates.

The RCTA can be enabled/dis-

Outside rear view mirror indi-

cators

abled on

(4.2-inch display)

or (7-inch display) of the

multi-information display.

(P.412)

If a vehicle is detected as

approaching from the left or right

behind the vehicle, both outside

rear view mirror indicators will blink

and a buzzer will sound.

When the RCTA function is off,

the driving assist information

indicator (P.84) will illuminate.

At this time, "Rear Cross Traffic

Alert OFF" will be displayed on

the multi-information display.

Audio system screen

If a vehicle approaching from the

right or left at the rear of the vehicle

is detected, the RCTA icon

(P .239) for the detected side will

be displayed on the audio system

screen. This illustration shows an

example of a vehicle approaching

from both sides of the vehicle.

Each time the engine switch is

turned to ON, the RCTA is

enabled.

■Outside rear view mirror indica-

Driving assist information

indicator

tor visibility

In strong sunlight, the outside rear

view mirror indicator may be difficult

to see.

When the RCTA is off, “Rear Cross

Traffic Alert OFF” will be displayed

on the multi-information display.

■Hearing the RCTA buzzer

The RCTA buzzer may be difficult to

hear over loud noises, such as if the

audio system volume is high.

■Rear side radar sensors

P.233

RCTA function

■ Operation of the RCTA function

The RCTA function uses rear side 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.

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239

4-5. Using the driving support systems

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 audio sys-

tem screen.

Example: Vehicles are approaching from both sides of the vehicle

■ 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:

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4-5. Using the driving support systems

Approaching vehicle speed

34 mph (56 km/h) (fast)

5 mph (8 km/h) (slow)

Approximate alert distance

131 ft. (40 m)

18 ft. (5.5 m)

●Guardrails, walls, signs, parked

■The RCTA function is opera-

tional when

vehicles and similar stationary

objects

The RCTA function operates when

all of the following conditions are

met:

●Small motorcycles, bicycles,

pedestrians, etc.

●Vehicles moving away from your

vehicle

●The engine switch is in ON.

●The RCTA function is on.

●The shift lever is in R.

●Vehicles approaching from the

parking spaces next to your vehi-

●The vehicle speed is less than

approximately 9 mph (15 km/h).

cle

●The distance between the sensor

and approaching vehicle gets too

●The approaching vehicle speed is

between approximately 5 mph (8

km/h) and 34 mph (56 km/h).

: Depending on the conditions,

■Setting the buzzer volume

detection of a vehicle and/or

object may occur.

The buzzer volume can be adjusted

on the multi-information display.

■Situations in which the system

may not operate properly

The volume of the RCTA buzzer can

be adjusted on

(4.2-inch dis-

The RCTA function may not detect

vehicles correctly in the following

situations:

play) or (7-inch display) of the

multi-information display. (P.412)

●When the sensor is misaligned

due to a strong impact to the sen-

sor or its surrounding area

■Conditions under which the

system will not detect a vehicle

The RCTA function is not designed

to detect the following types of vehi-

cles and/or objects:

●When mud, snow, ice, a sticker,

etc., is covering the sensor or sur-

rounding area on the position

above the rear bumper

●Vehicles approaching from directly

behind

●When driving on a road surface

that is wet with standing water

during bad weather, such as

heavy rain, snow, or fog

●Vehicles backing up in a parking

space next to your vehicle

●Vehicles that the sensors cannot

detect due to obstructions

●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 pro-

tector (an additional trim strip,

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241

4-5. Using the driving support systems

etc.), bicycle carrier, or snow plow

●When turning while backing up

●When backing up on a slope with

a sharp change in grade

●When a vehicle turns into the

detection area

●When backing out of a sharp

angle parking spot

■Situations in which the system

may operate even if there is no

possibility of a collision

Instances of the RCTA function

unnecessary 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

●Immediately after the RCTA func-

tion is turned on

●Immediately after the engine is

started with the RCTA function on

●When the sensors cannot detect a

vehicle due to obstructions

●When towing a trailer

●When there is a significant differ-

ence in height between your vehi-

cle and the vehicle that enters the

detection area

●When the distance between your

vehicle and metal objects, such as

a guardrail, wall, sign, or parked

vehicle, which may reflect electri-

cal waves toward the rear of the

vehicle, is short

●When a sensor or the area around

a sensor is extremely hot or cold

●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

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4-5. Using the driving support systems

●When a sensor or the area around

a sensor is extremely hot or cold

●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 towing eyelet, bumper pro-

tector (an additional 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

●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

vehicle and a guardrail, wall, etc.,

that enters the detection area is

short

●Gratings and gutters

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Driving -> Using the driving support systems-RCTA Rear Cross Traffic Alert function for Your Toyota Corolla 4 Door 2023

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