Get Driving -> BSM (Blind Spot Monitor) Guide for Toyota bZ4X SUV Second Generation (2025-2026)

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5-4. Using the driving support systems

BSM (Blind Spot Moni-

System components

*

tor)

*

: If equipped

The Blind Spot Monitor is a

system that uses rear side

radar sensors installed on

the inner side of the rear

bumper on the left and right

side to assist the driver in

confirming safety when

changing lanes.

Meter control switches

Turning the Blind Spot Monitor

on/off.

WARNING

Outside rear view mirror indi-

cators

■Cautions regarding the use of

the system

●The driver is solely responsible

for safe driving. Always drive

safely, taking care to observe

your surroundings.

When a vehicle is detected in a

blind spot of the outside rear view

mirrors or approaching rapidly from

behind into a blind spot, the outside

rear view mirror indicator on the

detected side will illuminate. If the

turn signal lever is operated toward

the detected side, the outside rear

view mirror indicator flashes.

●The Blind Spot Monitor is a sup-

plementary 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

Blind Spot Monitor. As the func-

tion cannot judge if it is safe to

change lanes, over reliance

Driving assist information

indicator

Illuminates when the Blind Spot

Monitor is turned off. At this time,

“Blind Spot Monitor OFF” will be

displayed on the multi-information

display.

could lead to an accident result-

ing in death or serious injury.

As the system may not function

correctly under certain condi-

tions, the driver’s own visual con-

firmation of safety is necessary.

■Outside rear view mirror indica-

tor visibility

In strong sunlight, the outside rear

view mirror indicator may be difficult

to see.

■Customization

Some functions can be customized.

(P.573)

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303

5-4. Using the driving support systems

■Certification

P.621

●Do not subject a sensor or its

surrounding area on the rear

bumper to a strong impact.

If a sensor is moved even

slightly off position, the system

may malfunction and vehicles

may not be detected correctly.

In the following situations, have

your vehicle inspected by your

Toyota dealer.

WARNING

■To ensure the system can

operate properly

Blind Spot Monitor sensors are

installed behind the left and right

sides of the rear bumper respec-

tively. Observe the following to

ensure the Blind Spot Monitor can

operate correctly.

• A sensor or its surrounding area

is subject to a strong impact.

• If the surrounding area of a sen-

sor is scratched or dented, or

part of them has become dis-

connected.

●Keep the sensors and the sur-

rounding areas on the rear

bumper clean at all times.

If a sensor or its surrounding area

on the rear bumper is dirty or cov-

ered with snow, the Blind Spot

Monitor may not operate and a

warning message (P.523) will

be displayed. In this situation,

clear off the dirt or snow and drive

the vehicle with the operation con-

ditions of the BSM function

●Do not disassemble the sensor.

●Do not modify the sensor or sur-

rounding area on the rear

bumper.

5

●If a sensor or the rear bumper

needs to be removed/installed

or replaced, contact your Toyota

dealer.

(P.305) satisfied for approxi-

mately 10 minutes. If the warning

message does not disappear,

have the vehicle inspected by

your Toyota dealer.

●Do not paint the rear bumper

any color other than an official

Toyota color.

Turning the Blind Spot

Monitor on/off

The blind spot monitor can be

enabled/disabled on

of the

multi-information display.

(P.156)

●Do not attach accessories,

stickers (including transparent

stickers), aluminum tape, etc.,

to a sensor or its surrounding

area on the rear bumper.

When the Blind Spot Monitor is

off, the driving assist information

indicator (P.149) will illumi-

nate. At this time, “Blind Spot

Monitor OFF” will be displayed

on the multi-information display.

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304

5-4. Using the driving support systems

Each time the power switch is

turned to ON, the Blind Spot

Monitor is enabled.

Blind Spot Monitor operation

■ Vehicles that can be detected by the Blind Spot Monitor

The Blind Spot Monitor uses rear side radar sensors to detect the fol-

lowing vehicles traveling in adjacent lanes and advises the driver of

the presence of such vehicles via the indicators on the outside rear

view mirrors.

Vehicles that are traveling in areas that are not visible using the

outside rear view mirrors (the blind spots)

Vehicles that are approaching rapidly from behind in areas that

are not visible using the outside rear view mirrors (the blind spots)

■ The Blind Spot Monitor detection areas

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

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of

the vehicle^*1

Approximately 3.3 ft. (1 m) forward of the rear bumper

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305

5-4. Using the driving support systems

Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear

bumper^*2

*1

*2

:The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side

of the vehicle cannot be detected.

:The greater the difference in speed between your vehicle and the

detected vehicle is, the farther away the vehicle will be detected, causing

the outside rear view mirror indicator to illuminate or flash.

●Following vehicles that are in the

same lane

■The Blind Spot Monitor is oper-

*

ational when

●Vehicles traveling 2 lanes away

The Blind Spot Monitor is opera-

tional when all of the following con-

ditions are met:

*

from your vehicle

●Vehicles which are being over-

*

taken rapidly by your vehicle

●The power switch is in ON.

●The Blind Spot Monitor is on.

*

: Depending on the conditions,

detection of a vehicle and/or

object may occur.

●The shift position is in a position

other than R.

5

●The vehicle speed is greater than

■Conditions under which the

system may not function cor-

rectly

approximately 7 mph (10 km/h).

■The Blind Spot Monitor will

detect a vehicle when

●The Blind Spot Monitor may not

detect vehicles correctly in the fol-

lowing situations:

The Blind Spot Monitor will detect a

vehicle present in the detection area

in the following situations:

• When the sensor is misaligned

due to a strong impact to the sen-

sor or its surrounding area

• When mud, snow, ice, a sticker,

etc., is covering the sensor or sur-

rounding 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 the distance between your

vehicle and a following vehicle is

short

• When there is a significant differ-

ence in speed between your vehi-

cle and the vehicle that enters the

detection area

• When the difference in speed

between your vehicle and another

vehicle is changing

●A vehicle in an adjacent lane over-

takes your vehicle.

●You overtake a vehicle in an adja-

cent lane slowly.

●Another vehicle enters the detec-

tion area when it changes lanes.

■Conditions under which the

system will not detect a vehicle

The Blind Spot Monitor is not

designed to detect the following

types of vehicles and/or objects:

●Small motorcycles, bicycles,

*

pedestrians, etc.,

●Vehicles traveling in the opposite

direction

●Guardrails, walls, signs, parked

vehicles and similar stationary

*

objects

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306

5-4. Using the driving support systems

• When a vehicle enters a detection

area traveling at about the same

speed as your vehicle

• As your vehicle starts from a stop,

a vehicle remains in the detection

area

• When an accessory (such as a

bicycle carrier) is installed to the

rear of the vehicle

• When towing with the vehicle

• When driving up and down con-

secutive steep inclines, such as

hills, dips in the road, etc.

• When driving on roads with sharp

bends, consecutive curves, or

uneven surfaces

• When vehicle lanes are wide, or

when driving on the edge of a

lane, and the vehicle in an adja-

cent lane is far away from your

vehicle

• When an accessory (such as a

bicycle carrier) is installed to the

rear of the vehicle

• When there is a significant differ-

ence in height between your vehi-

cle and the vehicle that enters the

detection area

• Immediately after the Blind Spot

Monitor is turned on

• When towing with the vehicle

●Instances of the Blind Spot Moni-

tor unnecessarily detecting a vehi-

cle and/or object may increase in

the following situations:

• 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

Owners Manual_USA_M42C01_en

Driving -> BSM (Blind Spot Monitor) for Your Toyota bZ4X SUV Second Generation (2025-2026)

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