wheel TOYOTA BZ4X 2022 (in English) Repair Manual

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5-4. Using the driving support systems
●The accelerator pedal is depressed
●The parking brake is engaged
●2 seconds at maximum elapsed after the brake pedal is released
●Power switch is turned to OFF
■Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer Sway Control, TRC and hill-start
assist control systems
●A sound may be heard from the motor
compartment when the brake pedal is depressed repeatedly, when the EV system is started or just after the vehi-
cle begins to move. This sound does not indicate that a malfunction has occurred in any of these systems.
●Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.• Vibrations may be felt through the
vehicle body and steering. • A motor sound may be heard also after the vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard in the following cases, but it does not indi-cate that a malfunction has occurred.
●Operating sound heard from the motor compartment when the brake pedal is
operated.
●Operating sound heard from the motor
compartment when one or two min- utes passed after the stop of the EV system.
■Active Cornering Assist operation
sounds and vibrations
When Active Cornering Assist is oper- ated, operation sounds and vibrations
may be generated from the brake sys- tem, but this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be heard. This does not indicate a malfunc-tion.
■Automatic reactivation of TRC,
Trailer Sway Control and VSC sys- tems
After turning the TRC, Trailer Sway Con-
trol and VSC systems off, the systems will be automatically re-enabled in the following situations:
●When the power switch is turned off
●If only the TRC system is turned off, the TRC will turn on when vehicle speed increases. If both the TRC and
VSC systems are turned off, auto- matic re-enabling will not occur when vehicle speed increases.
■Operating conditions of Active Cor-
nering Assist
The system operates when the following occurs.
●TRC/VSC can operate
●The driver is attempting to accelerate while turning
●The system detects that the vehicle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is
reduced to prevent the system from overheating when there is frequent steering input over an extended period
of time. The steering wheel may feel heavy as a result. Should this occur, refrain from excessive steering input or
stop the vehicle and turn the EV system off. The EPS system should return to normal within 10 minutes.
■Operating conditions of emergency
brake signal
When the following conditions are met, the emergency brake signal will operate:
●The emergency flashers are off.
●Actual vehicle speed is over 55 km/h (35 mph).
●The system judges from the vehicle deceleration that it is a sudden brak-ing operation.

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5-4. Using the driving support systems
WARNING
●Unlike the parking brake, hill-start assist control is not intended to hold
the vehicle stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an acci-dent.
■When the TRC/ABS/VSC/Trailer Sway Control is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may cause an accident. Exercise particular
care when the indicator light flashes.
■When the TRC/VSC/Trailer Sway
Control systems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to help ensure vehicle stability and driv-ing force, do not turn the
TRC/VSC/Trailer Sway Control sys- tems off unless necessary.Trailer Sway Control is part of the
VSC system and will not operate if VSC is turned off or experiences a malfunction.
■Replacing tires
Make sure that all tires are of the
specified size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to
the recommended tire inflation pres- sure level.The ABS, TRC, VSC and Trailer
Sway Control systems will not func- tion correctly if different tires are installed on the vehicle.
Contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer for further information
when replacing tires or wheels.
■Handling of tires and the suspen- sion
Using tires with any kind of problem
or modifying the suspension will affect the driving assist systems, and may cause a system to malfunction.
■Trailer Sway Control precaution
The Trailer Sway Control system is
not able to reduce trailer sway in all situations. Depending on many fac-tors such as the conditions of the
vehicle, trailer, road surface and driv- ing environment, the Trailer Sway Control system may not be effective.
Refer to your trailer owner’s manual for information on how to tow your trailer properly.
■If trailer sway occurs
Observe the following precautions.
Failing to do so may cause death or serious injury.
●Firmly grip the steering wheel. Steer straight ahead. Do not try to control trailer swaying by turning
the steering wheel.
●Begin releasing the accelerator
pedal immediately but very gradu- ally to reduce speed. Do not increase speed. Do not apply vehi-
cle brakes. If you make no extreme correction with the steering or brakes, your
vehicle and trailer should stabilize. ( P.237)
■Secondary Collision Brake
Do not rely solely upon the Secondary Collision Brake. This system is
designed to help reduce the possibil- ity of further damage due to a second-ary collision, however, that effect
changes according to various condi- tions. Overly relying on the system may result in death or serious injury.

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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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5-5. Driving tips
the driving conditions:
 Do not try to forcibly open a win-
dow or move a wiper that is fro-
zen. Pour warm water over the
frozen area to melt the ice. Wipe
away the water immediately to
prevent it from freezing.
 To ensure proper operation of
the climate control system fan,
remove any snow that has accu-
mulated on the air inlet vents in
front of the windshield.
 Check for and remove any
excess ice or snow that may
have accumulated on the exte-
rior lights, vehicle’s roof, chassis,
around the tires or on the brakes.
 Remove any snow or mud from
the bottom of your shoes before
getting in the vehicle.
Accelerate the vehicle slowly, keep
a safe distance between you and
the vehicle ahead, and drive at a
reduced speed suitable to road
conditions.
 Turn automatic mode of the park-
ing brake off. Otherwise, the
parking brake may freeze and
not be able to be released auto-
matically.
Also, avoid using the following as the
parking brake may operate automati-
cally, even if automatic mode is off.
• Brake hold system
• Remote parking function
 Park the vehicle and shift the
shift position to P without setting
the parking brake. The parking
brake may freeze up, preventing
it from being released. If the
vehicle is parked without setting
the parking brake, make sure to
block the wheels.
Failure to do so may be danger-
ous because it may cause the
vehicle to move unexpectedly,
possibly leading to an accident.
When the parking brake is in
automatic mode, release the
parking brake after shifting the
shift position to P. ( P.255)
 If the vehicle is parked without
setting the parking brake, con-
firm that the shift position cannot
be moved out of P.
 If the vehicle is left parked with
the brakes damp in cold tem-
peratures, there is a possibility of
the brakes freezing.
Use the correct tire chain size when
mounting the tire chains. Chain size
When driving the vehicle
When parking the vehicle
WARNING
■When parking the vehicle
When parking the vehicle without applying the parking brake, make
sure to chock the wheels. If you do not chock the wheels, the vehicle may move unexpectedly, possibly resulting
in an accident.
Selecting tire chains

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5-5. Driving tips
Driving
event that off-road driving cannot
be avoided, please observe the fol-
lowing precautions to help avoid
the areas prohibited to vehicles.
 Drive your vehicle only in areas
where off-road vehicles are per-
mitted to travel.
 Respect private property. Get
owner’s permission before enter-
ing private property.
 Do not enter areas that are
closed. Honor gates, barriers
and signs that restrict travel.
 Stay on established roads. When
conditions are wet, driving tech-
niques should be changed or
travel delayed to prevent dam-
age to roads.
WARNING
■Off-road driving precautions
Always observe the following precau- tions to minimize the risk of death or serious injury or damage to your vehi-
cle:
●Drive carefully when off the road. Do not take unnecessary risks by
driving in dangerous places.
●Do not grip the steering wheel
spokes when driving off-road. A bad bump could jerk the wheel and injure your hands. Keep both hands
and especially your thumbs on the outside of the rim.
●Always check your brakes for effec-tiveness immediately after driving in sand, mud, water or snow.
●After driving through tall grass, mud, rock, sand, water, etc., check that there is no grass, bush, paper,
rags, stone, sand, etc. adhering or trapped to the underbody. Clear off any such matter from the under-
body. If the vehicle is used with these materials trapped or adhering to the underbody, a breakdown or
fire could occur.
●When driving off-road or in rugged
terrain, do not drive at excessive speeds, jump, make sharp turns, strike objects, etc. This may cause
loss of control or vehicle rollover causing death or serious injury. You are also risking expensive damage
to your vehicle’s suspension and chassis.
NOTICE
■To prevent water damage
Take all necessary safety measures to ensure that water damage to the traction battery, EV system or other
components does not occur.
●Water entering the motor compart- ment may cause severe damage to
the EV system.
●Water entering the transmission will
cause deterioration in transmission quality. The vehicle may not be driv-able.
●Water can wash the grease from wheel bearings, causing rusting
and premature failure, and may also enter the transmission case, reducing the gear oil’s lubricating
qualities.
■When you drive through water
If driving through water, such as when crossing shallow streams, first check the depth of the water and the bottom
of the riverbed for firmness. Drive slowly and avoid deep water.

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6
Interior features
Interior features
6-1. Using the air conditioning
system and defogger
ALL AUTO (“ECO”) control 418
Automatic air conditioning sys-
tem ................................. 420
Remote Air Conditioning Sys-
tem ................................. 427
Heated steering wheel/seat
heaters/seat ventilators .. 429
6-2. Using the interior lights
Interior lights list................ 431
6-3. Using the storage features
List of storage features ..... 434
Luggage compartment features
....................................... 437
6-4. Using the other interior fea-
tures
Electronic sunshade ......... 442
Other interior features....... 444

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6-1. Using the air conditioning system and defogger
6-1.Using the a ir c onditioning sys te m and de fog ger
*: If equipped
Press the ALL AUTO (“ECO”)
switch
The indicator on the ALL AUTO
(“ECO”) switch illuminates, and the
automatic air conditioning system, seat
heaters* and ventilators*, and heated
steering wheel* operate in automatic
mode.
If any of the system is operated manu-
ally, the indicator turns off. However, all
other functions continue to operate in
automatic mode.
Even if ALL AUTO (“ECO”) control is
turned off, the air conditioner, seat
heater/ventilator, and steering heater
will not be turned off.
If the front window glass becomes
cloudy due to a drop in the outside air
temperature while the ALL AUTO
(“ECO”) control is operating, you can
remove the cloudiness by pressing the
AUTO switch on the air conditioner con-
trol panel.
*: If equipped
■Automatic air conditioning
system ( P.420)
The temperature can be adjusted
independently for each seat.
■Seat heaters (if equipped) and
ventilators (if equipped)
( P.429)
Heating or ventilation is automati-
cally selected according to the set
temperature of the air conditioning
system, the outside temperature,
etc.
■Heated steering wheel (if
equipped) ( P.429)
Heated steering wheel operates
automatically according to the set
temperature of the air conditioning
system, the outside temperature,
etc.
■Passenger detection functions
When a passenger is detected in the front passenger seat, the seat heater
and ventilator will operate automatically.
■Seat heater (if equipped)/ventilator (if equipped) operation
If the seat heater/ventilator switch is set
to auto, it will operate without performing the passenger detection. When the ALL AUTO (“ECO”) switch is pressed in that
state, the passenger seat heater and ventilator will operate according to that
ALL AUTO (“ECO”) con-
trol
The seat heaters*, seat ventila-
tors* and heated steering
wheel* are each automatically
controlled according to the set
temperature of the air condi-
tioning system, the outside
and cabin temperature, etc.
ALL AUTO (“ECO”) controls
the power consumption in
order to both extend the cruis-
ing range and maintain com-
fortable conditions.
Turning on ALL AUTO
(“ECO”) control
Operation of each system

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6-1. Using the air conditioning system and defogger
Interior features
*: If equipped
Turns the heated steering wheel
on/off
Each time the switch is pressed, the
operation condition changes as follows.
AUTO (lit)  Hi (2 segments lit)  Lo
(1 segment lit)  Off
The AUTO indicator and/or level
indicator illuminates during opera-
tion.
■The heated steering wheel can be
used when
The power switch is in ON.
■Front
Turns the seat heaters on/off
Each time the switch is pressed, the
operation condition changes as follows.
AUTO (lit)  Hi (3 segments lit)  Mid
(2 segments lit)  Lo (1 segment lit) 
Off
Heated steering
wheel*/seat heat-
ers*/seat ventilators*
 Heated steering wheel
Warms up the grip of the steering
wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good airflow on the seat
upholstery by sucking air into the
seats
WARNING
■To prevent minor burn injuries
Care should be taken if anyone in the following categories comes in contact
with the steering wheel or seats when the heater is on:
●Babies, small children, the elderly, the sick and the physically chal-lenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alcohol or
drugs that induce sleep (sleeping drugs, cold remedies, etc.)
NOTICE
■To prevent damage to the seat heaters and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not stick sharp objects (needles, nails, etc.) into the seat.
■To prevent 12-volt battery dis-charge
Do not use the functions when the EV
system is off.
Heated steering wheel
Seat heaters

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7
Maintenance and care
Maintenance and care
7-1. Maintenance and care
Cleaning and protecting the
vehicle exterior ............... 456
Cleaning and protecting the
vehicle interior ................ 459
7-2. Maintenance
Maintenance requirements 463
7-3. Do-it-yourself maintenance
Do-it-yourself service precau-
tions ................................ 465
Hood ................................. 467
Positioning a floor jack...... 468
Motor compartment .......... 470
Tires .................................. 476
Replacing the tire.............. 488
Tire inflation pressure ....... 494
Wheels.............................. 495
Air conditioning filter ......... 496
Electronic key battery ....... 499
Checking and replacing fuses
....................................... 501
Light bulbs ........................ 504

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7-1. Maintenance and care
7-1.Mainte nance a nd care
Working from top to bottom, lib-
erally apply water to the vehicle
body, wheel wells and underside
of the vehicle to remove any dirt
and dust.
 Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.
 For hard-to-remove marks, use
car wash soap and rinse thor-
oughly with water.
 Wipe away any water.
 Wax the vehicle when the water-
proof coating deteriorates.
If water does not bead on a clean sur-
face, apply wax when the vehicle body
is cool.
■Self-restoring coat
The vehicle body has a self-restoring coating that is resistant to small surface scratches caused in a car wash, etc.
●The coating lasts for 5 to 8 years from when the vehicle is delivered from the
plant.
●The restoration time differs depending
on the depth of the scratch and out- side temperature. The restoration time may become shorter when the coating
is warmed by applying warm water.
●Deep scratches caused by keys,
coins, etc., cannot be restored.
●Do not use wax that contain abra- sives.
■Automatic car washes
●Before washing the vehicle:• Fold the mirrors
• Turn off the power back door (if equipped)
Start washing from the front of the vehi-
cle. Extend the mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle sur-face, parts (wheel, etc.) and harm
your vehicle’s paint.
●Rear spoiler (if equipped) may not be
washable in some automatic car washes. There may also be an increased risk of damage to vehicle.
●When the shift position needs to be held in N, refer to P.251.
■High pressure car washes
As water may enter the cabin, do not bring the nozzle tip near the gaps around the doors or perimeter of the
windows, or spray these areas continu- ously.
■Note for a smart entry & start sys-tem
●If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In that case, follow the following correction procedures to
wash the vehicle: • Place the key in a position 2 m (6 ft.) or more separate from the vehicle
while the vehicle is being washed. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-sav- ing mode to disable the smart entry & start system ( P.204)
●If the electronic key is inside the vehi- cle and a door handle becomes wet
during a car wash, a buzzer may sound outside the vehicle and “Key Detected In Vehicle” may be shown
Cleaning and protecting
the vehicle exterior
Perform cleaning in a manner
appropriate to each compo-
nent and its material.
Cleaning instructions