2022 TOYOTA BZ4X lane assist

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5-4. Using the driving support systems
■Situations in which the curve speed reduction function may not operate
In situations such as the following, the curve speed reduction function may not operate:
●When the vehicle is being driven around a gentle curve
●When the accelerator pedal is being depressed
●When the vehicle is being driven around an extremely short curve
If a detected vehicle in the passing
lane is traveling slower than your
vehicle, overtaking will be sup-
pressed.
The overtaking prevention function will
not operate if the passing lane is con-
gested or vehicles are traveling at low
speeds.
This function is not available for vehi-
cles without a DCM.
If your vehicle is being driven at
approximately 80 km/h (50 mph) or
more and a lane change to the
passing lane is performed, when
the turn signal lever is operated and
the lane is changed, the vehicle will
accelerate up to the set speed to
assist in overtaking.
For vehicles with a DCM: The system’s
recognition of which lane is the passing
lane is determined by location informa-
tion and the driving condition of sur-
rounding vehicles. The support for lane
change function and overtaking preven-
tion function may not operate if it is diffi-
cult to obtain location information or
there are few surrounding vehicles.
For vehicles without a DCM: The sys-
tem’s recognition of which lane is the
passing lane may be based solely on
the location of the steering wheel in the
vehicle (left-hand drive/right-hand
drive). If the vehicle is driven in a loca-
tion where the passing lane is on the
opposite side of that where the vehicle
was originally sold, the vehicle may
accelerate when the turn signal lever is
operated away from the passing lane.
(e.g. The vehicle was manufactured for
a right-hand traffic location, but is being
driven in a left-hand traffic location. The
vehicle may accelerate when the turn
signal lever is operated to the right.)
If your vehicle is being driven at approx-
imately 80 km/h (50 mph) or more and
the lane is changed to that with a vehi-
cle traveling slower than your vehicle,
when the turn signal lever is operated
the vehicle will gradually decelerate to
assist in changing lanes.
When RSA function is enabled and
the dynamic radar cruise control
Overtaking prevention func-
tion
Support for lane change
Dynamic Radar Cruise Con-
trol with Road Sign Assist

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5-4. Using the driving support systems
Driving
■When the set vehicle speed is
higher than the detected
speed limit
Press and hold the “-” switch.
■The speed limiter with road sign
assist may not operate properly when
As the speed limiter with road sign
assist may not operate properly in situa- tions where the RSA may not operate or cannot detect signs correctly ( P.304),
when using this function, make sure to confirm the actual speed limit.
In the following situations, the set speed
may not change to the detected speed limit by pressing and holding the “+” switch or “-” switch:
●When the detected speed limit is the same as the set speed
●When the detected speed limit is out-side of the speed range which the
speed limiter system can operate
Emergency Driving Stop
System
The emergency driving stop
system is a system which
automatically decelerates and
stops the vehicle within its
lane if the driver becomes
unable to continue driving the
vehicle, such as if they have
suffered a medical emergency,
etc.
During LTA (Lane Tracing
Assist) control, if the system
does not detect driving opera-
tions, such as if the driver is
not holding the steering wheel,
and determines the driver is
not responsive, the vehicle will
be decelerated and stopped
within its current lane to help
avoid a collision or reduce the
impact of a collision.
WARNING
■For safe use
●Driving safely is solely the responsi-
bility of the driver. Pay careful atten- tion to the surrounding conditions in order to ensure safe driving. The
emergency driving stop system is designed to provide support in an emergency where it is difficult for
the driver to continue driving, such as if they have had a medical emer-gency. It is not designed to support
driving while drowsy or in poor physical health, or inattentive driv-ing.

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5-4. Using the driving support systems
Operation of this system is sepa-
rated into 4 control states. Through
control state “warning phase 1” and
“warning phase 2”, the system
determines if the driver is aware
and responsive while outputting a
warning and controlling the vehicle
speed. If the system determines the
driver is not responsive, it will oper-
ate in control state “deceleration
stop phase” and “stop hold phase”
and decelerate and stop the vehi-
cle. It will then operate continuously
in “stop hold phase”.
■Operating conditions
This system operates when all of the fol- lowing conditions are met:
●When the LTA is on
●When the vehicle speed is approxi-
mately 50 km/h (30 mph) or more
■Operation cancelation conditions
In the following situations, system oper- ation will be canceled:
●When LTA control has been canceled
(the LTA switch has been pressed, etc.)
●When the dynamic radar cruise con-trol has been canceled
●When driver operations are detected (the steering wheel is held, the brake pedal, accelerator pedal, parking
brake, hazard light switch, or turn sig- nal lever is operated)
●When the driving assist switch is pressed while in the stop and hold phase
●When the power switch has been turned from ON to OFF
●Situations in which some or all of the
WARNING
●Although the emergency driving stop system is designed to deceler-
ate the vehicle within its lane to help avoid or help reduce the impact of a collision if the system
determines that it is difficult for the driver to continue driving, its effec-tiveness may change according to
various conditions. Therefore, it may not always be able to achieve the same level of performance.
Also, if the operating conditions are not met, this function will not oper-ate.
●After the emergency driving stop system operates, if driving
becomes possible again, immedi- ately begin driving again or, if nec-essary, park the vehicle on the
shoulder of the road and set a warning reflector and flare to warn other drivers of your stopped vehi-
cle.
●After this system operates, passen-
gers should attend to the driver as necessary and take appropriate hazard prevention measures, such
as moving to a place where safety can be ensured, such as the shoul-der of the road or behind a guard-
rail.
●T h i s s y s t e m d e t e c t s t h e c o n d i t i o n o f
the driver through the operation of the steering wheel. This system may operate if the driver is aware
but intentionally and continuously does not operate the vehicle. Also, the system may not operate if it
cannot determine that the driver is not responsive, such as if they are leaning on the steering wheel.
●Vehicles with a driver monitor cam-era: Situations in which the driver
monitor may not operate properly:  P. 2 8 1
Summary of the system

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5-4. Using the driving support systems
*: If equipped
Meter control switches
Turning the Blind Spot Monitor on/off.
Outside rear view mirror indica-
tors
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 illumi-
nate. If the turn signal lever is operated
toward the detected side, the outside
rear view mirror indicator flashes.
Driving assist information indica-
tor
Illuminates when the Blind Spot Monitor
is turned off. At this time, “Blind Spot
Monitor OFF” will be displayed on the
multi-information display.
■Outside rear view mirror indicator
visibility
In strong sunlight, the outside rear view mirror indicator may be difficult to see.
■Customization
Some functions can be customized. ( P.570)
■Certification
 P. 6 4 3
BSM (Blind Spot Moni-
tor)*
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.
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 Blind Spot Monitor is a supple-mentary 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 Moni-tor. As the function cannot judge if it
is safe to change lanes, over reli- ance could lead to an accident resulting in death or serious injury.
As the system may not function cor- rectly under certain conditions, the
driver’s own visual confirmation of safety is necessary.
System components

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5-4. Using the driving support systems
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 adjacent 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 difference in height between your vehicle and
the vehicle that enters the detection area• Immediately after the Blind Spot Moni-
tor is turned on • When towing with the vehicle
●Instances of the Blind Spot Monitor unnecessarily detecting a vehicle and/or object may increase in the fol-
lowing situations: • When the sensor is misaligned due to a strong impact to the sensor or its
surrounding area • When the distance between your vehi-cle and a guardrail, wall, etc., that
enters the detection area is short • When driving up and down consecu-tive 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 vehi-cle and a following vehicle is short
• When an accessory (such as a bicycle carrier) is installed to the rear of the vehicle
• When towing with the vehicle
*: If equipped
SEA (Safe Exit Assist)*
The Safe Exit Assist is a sys-
tem that uses radar sensors
installed on the inner side of
the rear bumper to help occu-
pants judge if an approaching
vehicle or bicycle may collide
with a door to reduce the pos-
sibility of a collision.
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.
●Safe Exit Assist is a supplementary system that, when the vehicle is stopped, informs occupants of the
existence of approaching vehicles and bicycles. As this system alone cannot be used to judge safety,
over-reliance on this system may lead to an accident resulting in death or serious injury.
As the system may not function cor- rectly under certain conditions, visual confirmation of safety with
the passengers’ own eyes and mir- rors is necessary.

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5-4. Using the driving support systems
Driving
■Automatic system cancelation of
emergency brake signal
The emergency brake signal will be can- celed in any of the following situations:
●The emergency flashers are turned on.
●The system judges from the vehicle deceleration that is not a sudden brak-
ing operation
■Secondary Collision Brake operat- ing conditions
The system operates when the SRS air-
bag sensor detects a collision while the vehicle is in motion. However, the sys-tem does not operate when components
are damaged.
■Secondary Collision Brake auto- matic cancellation
The system is automatically canceled in
any of the following situations.
●The vehicle speed drops below
approximately 0 km/h (0 mph)
●A certain amount of time elapses
during operation
●The accelerator pedal is depressed a
large amount
WARNING
■The ABS does not operate effec- tively when
●The limits of tire gripping perfor-mance have been exceeded (such as excessively worn tires on a snow
covered road).
●The vehicle hydroplanes while driv-
ing at high speed on wet or slick roads.
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a safe distance from
the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with pot-holes or uneven surfaces
■TRC/VSC may not operate effec-tively when
Directional control and power may not be achievable while driving on slip-pery road surfaces, even if the
TRC/VSC system is operating. Drive the vehicle carefully in condi-tions where stability and power may
be lost.
■Active Cornering Assist does not
operate effectively when
●Do not overly rely on Active Corner- ing Assist. Active Cornering Assist
may not operate effectively when accelerating down slopes or driving on slippery road surfaces.
●When Active Cornering Assist fre-quently operates, Active Cornering
Assist may temporarily stop operat- ing to ensure proper operation of the brakes, TRC and VSC.
■Hill-start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may not operate effectively on steep
inclines and roads covered with ice.

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5-5. Driving tips
Driving
5-5.Driving tips
Use fluids that are appropriate to
the prevailing outside tempera-
tures.
• Power control unit coolant
• Heater coolant
• Washer fluid
 Have a service technician
inspect the condition of the 12-
volt battery.
 Have the vehicle fitted with four
snow tires or purchase a set of
tire chains for the front tires.
Ensure that all tires are the same size
and brand, and that chains match the
size of the tires.
Perform the following according to
Winter driving tips
Carry out the necessary prepa-
rations and inspections before
driving the vehicle in winter.
Always drive the vehicle in a
manner appropriate to the pre-
vailing weather conditions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions to
reduce the risk of accidents. Failure to do so may result in a loss of vehicle control and cause death or
serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for the snow tires being
used.
●Use snow tires on all, not just some
wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.Failure to do so may result in the vehi-
cle being unable to be driven safely, and may cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or 50 km/h (30 mph),
whichever is lower.
●Avoid driving on bumpy road sur-
faces or over potholes.
●Avoid sudden acceleration, abrupt
steering, sudden braking and shift- ing operations that cause sudden regenerative braking.
●Slow down sufficiently before enter-ing a curve to ensure that vehicle
control is maintained.
●Do not use LTA (Lane Tracing
Assist).
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of
snow tires from any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer or legitimate
tire retailers. This is because the removal and attachment of snow tires affects the
operation of the tire pressure warning valves and transmitters.
Before driving the vehicle

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8-2. Steps to take in an emergency
The rear passengers’ seat belt warning buzzer sounds to alert t he rear passenger
that his or her seat belt is not fastened. If the seat belt is unfastened, the buzzer
sounds intermittently for a certain period of time after the ve hicle reaches a certain
speed.
■Tire pressure warning light
■LDA indicator (warning buzzer)
■LTA indicator (warning buzzer)
Warning lightDetails/Actions
When the light comes on after blinking for approximately 1 minu te
(a buzzer does not sounds):
Malfunction in the tire pressure warning system
 Have the system checked by any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer.
When the light comes on (a buzzer sounds):
Low tire inflation pressure from natural causes
 After the temperature of the tires has lowered sufficiently,
check the inflation pressure of each tire and adjust them to
the specified level.( P.515)
Low tire inflation pressure from flat tire
 Immediately stop the vehicle in a safe place and perform
the necessary actions ( P.521)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LDA (Lane Departure Alert).
 Follow the instructions displayed on the multi-information
display.
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LTA (Lane Tracing Assist).
 Follow the instructions displayed on the multi-information
display.