key TOYOTA BZ4X 2023 Repair Manual

447
Owners Manual_USA_M42C01_en
7
7
Maintenance and care
Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 448
Cleaning and protecting the vehicle interior ........... 451
7-2. Maintenance Maintenance requirements.................................. 455
General maintenance.. 456
Emission inspection and maintenance (I/M) pro-
grams ........................ 459
7-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 460
Hood ........................... 462
Positioning a floor jack 464
Motor compartment ..... 465
Tires ............................ 472
Replacing the tire ........ 485
Tire inflation pressure.. 491
Wheels ......... ...............493
Air conditioning filter .... 494
Electronic key battery.. 497
Checking and replacing fuses.......................... 499
Headlight aim .............. 501
Light bulbs................... 502

4487-1. Maintenance and care
Owners Manual_USA_M42C01_en
7-1.Maintenance and care
Working from top to bottom,
liberally 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
thoroughly with water.
 Wipe away any water.
 Wax the vehicle when the
waterproof coating deterio-
rates.
If water does not bead on a clean
surface, apply wax when the vehi-
cle body is cool.
■Self-restoring coat
The vehicle body has a self-restor-
ing 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 t he depth of the scratch and outside 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
vehicle. Make sure to extend the
mirrors before driving.
●Brushes used in automatic car
washes may scratch the vehicle
surface, parts (wheel, etc.) and
harm your vehicle’s paint.
●Rear spoiler 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.239.
■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 continuously.
■Note for a smart key system
●If the door handle becomes wet
while the electronic key is within
the effective range, the door may
lock and unlock repeatedly. In that
case, follow the following correc-
tion procedures to wash the vehi-
cle:
• Place the key in a position 6 ft. (2 m) 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-
saving mode to disable the smart
key system. ( P.188)
Cleaning and protect-
ing the vehicle exte-
rior
Perform the following to
protect the vehicle and
maintain it in prime condi-
tion:
Cleaning instructions

4497-1. Maintenance and care
Owners Manual_USA_M42C01_en
7
Maintenance and care
●If the electronic key is inside the
vehicle 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 on the
multi-information display. To turn
off the alarm, lock all the doors.
■Wheels and wheel ornaments
●Remove any dirt immediately by
using a neutral detergent.
●Wash detergent off with water
immediately after use.
●To protect the paint from damage,
make sure to obs erve the follow-
ing precautions.
• Do not use acidi c, alkaline or
abrasive detergent
• Do not use hard brushes
• Do not use det ergent on the
wheels when they are hot, such
as after driving or parking in hot
weather
■Painted brake calipers (if
equipped)
●When using detergent, use neu-
tral detergent. Do not use hard
brushes or abrasive cleaners, as
they will damage the paint.
●Do not use detergent on the brake
calipers when th ey are hot.
●Wash detergent off immediately
after use.
■Brake pads and calipers
Rust may form if the vehicle is
parked with wet brake pads or disc
rotors, causing them to stick. Before
parking the vehicle after it is
washed, drive slow ly and apply the
brakes several times to dry the
parts.
■Bumpers
Do not scrub with abrasive cleaners.
■Plated portions
If dirt cannot be removed, clean the
parts as follows:
●Use a soft cloth dampened with an approximately 5% solution of neu-
tral detergent and water to clean
the dirt off.
●Wipe the surface with a dry, soft
cloth to remove any remaining
moisture.
●To remove oily deposits, use alco-
hol wet wipes or a similar product.
WARNING
■When washing the vehicle
Do not apply water to the inside of
the motor compartment. Doing so
may cause the electrical compo-
nents, etc. to catch fire.
■When cleaning the windshield
(vehicles with rain-sensing
windshield wipers)
Set the wiper switch to off.
If the wiper switch is in “AUTO”,
the wipers may operate unexpect-
edly in the following situations,
and may result in hands being
caught or other serious injuries
and cause damage to the wiper
blades.
Off
“AUTO”
●When the upper part of the
windshield where the raindrop
sensor is located is touched by
hand
●When a wet rag or similar is
held close to the raindrop sen-
sor

4697-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_en
7
Maintenance and care
and that there are no loose con-
nections, cracks, or loose
clamps. Terminals
Hold-down clamp
■Checking 12-volt battery
fluid
Check that the level is between
the “UPPER LEVEL” and
“LOWER LEVEL” lines.
“UPPER LEVEL” line
“LOWER LEVEL” line
If the fluid level is at or below the
“LOWER LEVEL” line, add distilled
water.
■Adding distilled water
1 Remove the vent plug.
2 Add distilled water.
If the “UPPER LEVEL” cannot be
seen, check the fluid level by look- ing directly at the cell.
3
Put the vent plug back on
and close it securely.
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery installed on the vehicle, be
sure to disconnect the ground
cable.
●Make sure the power switch on
the charger is off when connecting
and disconnecting the charger
cables to the 12-volt battery.
■After recharging/reconnecting
the 12-volt battery
●The EV system may not start. Fol-
low the procedure below to initial-
ize the system.
1 Shift the shift position to P.
2 Open and close any of the doors.
3 Restart the EV system.
●Unlocking the doors using the
Smart key system may not be
possible immediately after recon-
necting the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the EV system with the
power switch in ACC. The EV sys-
tem may not start with the power
switch turned off. However, the EV
system will operate normally from

4977-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_en
7
Maintenance and care
■If the key battery is depleted
The following symptoms may occur:
●The smart key system and wire-
less remote contr ol will not func-
tion properly.
●The operational range will be
reduced.
Prepare the following before
replacing the battery:
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2450
■Use a CR2450 lithium battery
●Batteries can be purchased at
your Toyota dealer, local electrical
appliance shops or camera stores.
●Replace only with the same or
equivalent type recommended by
the manufacturer.
●Dispose of used ba tteries accord-
ing to the local laws.
1 Release the lock and remove
the mechanical key.
2 Remove the key cover.
Use a screwdriver of an appropriate
size. Forcedly prying may cause
the cover damaged.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
3Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the elec-
tronic key module may stick to the
cover and the batt ery may not be
visible.
In this case, remove the electronic
key module in order to remove the
battery.
When removing the battery, use a
screwdriver of an appropriate size.
Insert a new battery with the “+” ter-
Electronic key batter y
Replace the battery with a
new one if it is depleted.
Items to prepare
Replacing the battery

4987-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_enminal facing up.
4
When installing the key cover
and mechanical key, install
by conducting step 2 and
step 1 with the directions
reversed.
WARNING
■Battery precautions
Observe the following precau-
tions.
Failure to do so m ay result in
death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery o r button battery
is used in the electronic key. If a
battery is swallowed, it may
cause severe chemical burns in
as little as 2 hours and may
result in death or serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the electronic
key and stow the key in the
place where children cannot
reach, and then contact your
Toyota dealer.
●If you accidentally swallow a
battery or put a battery into a
part of your b ody, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the battery with a new
battery of the same type. If a
wrong type of battery is used, it
may explode.
●Do not expose batteries to
extremely low pr essure due to
high altitude or extremely high
temperatures.
●Do not burn, bre ak or cut a bat-
tery.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive force may deform or damage
the cover.
■For normal operation after
replacing the battery
Observe the following precautions
to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery
to rust.
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.

503
Owners Manual_USA_M42C01_en
8
8
When trouble arises
When trouble arises
8-1. Essential informationEmergency flashers .... 504
If your vehicle has to be stopped in an emergency.................................. 505
If the vehicle is submerged or water on the road is ris-
ing ............................. 506
8-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 507
If you think something is wrong ........................ 511
If a warning light turns on or a warning buzzer sounds
.................................. 513
If a warning message is dis- played........................ 522
If you have a flat tire.... 527
If the EV syst em will not
start ........................... 537
If you lose your keys ... 539
If the electronic key does not operate properly .. 539
If the 12-volt battery is dis- charged ..................... 541
If your vehicle overheats .................................. 545
If the vehicle becomes stuck .................................. 547

5078-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
8-2.Steps to take in an emergency
In the following situations, it is
not possible to be towed by
another vehicle using cables or
chains, as the front wheels may
be locked due to the parking
lock. Contact your Toyota dealer
or commercial towing service.
 There is a malfunction in the
shift control system. ( P.233,
525)
 There is a malfunction in the
immobilizer system. ( P. 6 8 )
 There is a malfunction in the
smart key system. ( P.539)
 The 12-volt battery is dis-
charged. ( P.541) The following may indicate a
problem with your transmission.
Contact your Toyota dealer or
commercial towing service
before towing.

The EV system warning mes-
sage is shown on the multi-
information display and the
vehicle does not move.
 The vehicle makes an abnor-
mal sound.From the front (2WD models)
Release the parking brake.
Turn automatic mode off.
( P.244)
If your vehicle needs
to be towed
If towing is necessary, we
recommend having your
vehicle towed by your Toy-
ota dealer or commercial
towing service, using a
wheel-lift type truck or flat-
bed truck.
Use a safety chain system
for all towing, and abide by
all state/provincial and local
laws.
Situations when it is not
possible to be towed by
another vehicle
Situations when it is nec-
essary to contact dealers
before towing
Towing with a wheel-lift
type truck

5378-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
One of the following may be the
cause of the problem:
 The charging cable may be
connected to the vehicle.
( P.102)
 The electronic key may not be
functioning properly.
*
( P.539)
 The traction battery may be
completely discharged.
Charge the traction battery.
( P.98)
 There may be a malfunction
in the immobilizer system.
*
( P.68)
 There may be a malfunction
in the shift control system.
*
( P.233, 525)
 The EV system may be mal-
functioning due to an electri-
cal problem such as
electronic key battery deple-
tion or a blown fuse. However,
NOTICE
●Do not put the repair kit directly
onto dusty ground such as sand
at the side of the road. If the
repair kit vacuums up dust, etc.,
a malfunction may occur.
●Make sure the sealant bottle of
the repair kit is in a vertical posi-
tion. The repair kit does not
operate properly when it is laid.
■Precautions for the emer-
gency tire puncture repair kit
●The repair kit power source
should be 12 V DC suitable for
vehicle use. Do not connect the
repair kit to any other source.
●Place the repair kit in a storage
to prevent it from being exposed
to dirt or water.
●Store the repair kit in the lug-
gage compartment out of reach
of children.
●Do not disassemble or modify
the repair kit. Do not subject
parts such as the air pressure
indicator to impacts. This may
cause a malfunction.
■To avoid damage to the tire
pressure warning valves and
transmitters
When a tire is repaired with liquid
sealants, the tire pressure warn-
ing valve and transmitter may not
operate properly. If a liquid seal-
ant is used, contact your Toyota
dealer or other qualified service
shop as soon as possible. After
use of liquid sealant, make sure to
replace the tire pressure warning
valve and transmitter when repair-
ing or replacing the tire. ( P.476)
If the EV system will
not star t
Reasons for the EV system
not starting vary depending
on the situation. Check the
following and perform the
appropriate procedure:
The EV system will not
start even though the cor-
rect starting procedure is
being followed ( P.231)

5398-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on.
(Customizable features: P.569)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.188)
Use the mechanical key
( P.164) in order to perform the
following operations.
If you lose your keys
New genuine keys can be
made by your Toyota dealer
using the other key and the
key number stamped on
your key number plate.
Keep the plate in a safe
place such as your wallet,
not in the vehicle.
NOTICE
■When an electronic key is lost
If the electronic key remains lost,
the risk of vehicle theft increases
significantly. Visit your Toyota
dealer immediately with all
remaining electronic keys that
were provided wit h your vehicle.
If the electronic key
does not operate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.188)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the EV sys-
tem can be started by fol-
lowing the procedure below.
NOTICE
■In case of a smart key system
malfunction, o r other key
related problems
Take your vehicle with all the elec-
tronic keys provided with your
vehicle to your Toyota dealer.
Locking and unlocking
the doors