Toyota 4Runner (2022 year). instruction in english — page 15
420
6-3. Do-it-yourself maintenance
Hood
Release the lock from the inside of the vehicle to open the hood.
Pull the hood lock release lever.
1
The hood will pop up slightly.
Push the auxiliary catch lever to
2
the left and lift the hood.
WARNING
■Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.
6-3. Do-it-yourself maintenance
421
Engine compartment
1
Washer fluid tank
(P. 433)
6
Brake fluid reservoir
(P. 427)
2
Power steering fluid reservoir
6
(P. 429)
7
Fuse box
(P. 459)
3
Engine oil level dipstick
8
Battery
(P. 430)
(P. 423)
9
Condenser
(P. 427)
4
Engine coolant reservoir
10
Radiator
(P. 427)
(P. 425)
Engine oil filler cap (P. 424)
5
422
6-3. Do-it-yourself maintenance
Engine compartment cover
■ Removing the engine compartment cover
■ Installing the clips
1
Push up center portion
2
Insert
3
Press
NOTICE
■After installing an engine compartment cover
Make sure that the cover is securely installed in its original position.
6-3. Do-it-yourself maintenance
423
Engine oil
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■ Checking the engine oil
Park the vehicle on level ground. After warming up the engine
1
and turning it off, wait more than 5 minutes for the oil to drain
back into the bottom of the engine.
2
Holding a rag under the end,
pull the dipstick out.
3
Wipe the dipstick clean.
4
Reinsert the dipstick fully.
5
Holding a rag under the end,
pull the dipstick out and
6
check the oil level.
1
Low
2
Normal
3
Excessive
The shape of the dipstick may
differ depending on the type of
vehicle or engine.
Wipe the dipstick and reinsert it fully.
6
424
6-3. Do-it-yourself maintenance
■ Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.
Engine oil selection
P. 535
Oil quantity
1.8 qt. (1.7 L, 1.5 Imp. qt.)
(Low Full)
Items
Clean funnel
1
Remove the oil filler cap by turning it counterclockwise.
2
Add engine oil slowly, checking the dipstick.
3
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance intervals.
● When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine
● If low quality oil or oil of an inappropriate viscosity is used
● When driving at high engine speeds or with a heavy load, when towing, or
when driving while accelerating or decelerating frequently
● When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
6-3. Do-it-yourself maintenance
425
WARNING
■ Used engine oil
● Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care
should be taken to avoid prolonged and repeated contact. To remove used
engine oil from your skin, wash thoroughly with soap and water.
● Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call your Toyota dealer, service station or auto parts store for information
concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■ To prevent serious engine damage
Check the oil level on a regular basis.
■ When replacing the engine oil
● Be careful not to spill engine oil on the vehicle components.
● Avoid overfilling, or the engine could be damaged.
● Check the oil level on the dipstick every time you refill the vehicle.
6
● Be sure the engine oil filler cap is properly tightened.
Engine coolant
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the engine is cold.
1
Reservoir cap
2
“F” line
3
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(P. 527)
426
6-3. Do-it-yourself maintenance
■ Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31F [-35C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44F [-42C])
For more details about engine coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.
WARNING
■ When the engine is hot
Do not remove the engine coolant reservoir cap or the radiator cap.
(P. 528)
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
6-3. Do-it-yourself maintenance
427
Radiator and condenser
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by your Toyota dealer.
WARNING
■ When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.
Brake fluid
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
1
“MAX” line
2
“MIN” line
6
■ Adding fluid
Make sure to check the fluid type and prepare the necessary item.
Fluid type
FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Items
Clean funnel
■ Refilling brake fluid
1
Turn the engine switch off.
2
Depress the brake pedal more than 40 times.
3
Remove the reservoir cap by hand. Add brake fluid up to the
“MAX” line.
If you do not follow the procedure above, the reservoir may over-
flow.
428
6-3. Do-it-yourself maintenance
■ Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.
WARNING
■ When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■ If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.
6-3. Do-it-yourself maintenance
429
Power steering fluid
■ Fluid level
The fluid level should be within the appropriate range.
1
Full (when cold)
2
Add fluid (when cold)
3
Full (when hot)
4
Add fluid (when hot)
Hot: Vehicle has been driven around 50 mph (80 km/h) for 20 min-
utes, or slightly longer in frigid temperatures. (Fluid tempera-
ture, 140°F - 175°F [60°C - 80°C]).
Cold: Engine has not been run for about 5 hours. (Room tempera-
ture, 50°F - 85°F [10°C - 30°C]).
■ Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
6
Fluid type
Automatic transmission fluid DEXRON® II or III
Items
Rag or paper, clean funnel (only for adding fluid)
1
Clean all dirt off the reservoir.
2
Remove the cap by turning it counterclockwise.
3
Wipe the dipstick clean.
4
Reinstall the cap and remove it again.
5
Check the fluid level.
430
6-3. Do-it-yourself maintenance
WARNING
■When checking the reservoir
Take care as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or
damage.
Battery
Check the battery as follows.
■ Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
1
Terminals
2
Hold-down clamp
■ Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
● If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
6-3. Do-it-yourself maintenance
431
■ After recharging/reconnecting the battery (vehicles with a smart key sys-
tem)
The engine may not start. Follow the procedure below to initialize the system.
1
Shift the shift lever to P.
2
Open and close any of the doors.
3
Restart the engine.
● Unlocking the doors using the smart key system may not be possible imme-
diately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start when the engine switch turned from off. However, the engine
will operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect the battery. Take extra care when connecting the battery
if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
WARNING
■ Chemicals in the battery
6
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
432
6-3. Do-it-yourself maintenance
WARNING
■ Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is insufficient ventilation.
■ How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if
charged at a quicker rate.
■ Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
6-3. Do-it-yourself maintenance
433
Washer fluid
Type A
If any washer does not work or the
warning message appears on the
multi-information display,
the
washer tank may be empty. Add
washer fluid.
Type B
If the washer fluid level is at
“LOW”, add washer fluid.
6
■Using the gauge (Type B only)
The washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge.
If the level falls below the second hole
Current
from the bottom (the “LOW” position), refill
fluid
the washer fluid.
level
434
6-3. Do-it-yourself maintenance
WARNING
■ When adding washer fluid
Do not add washer fluid when the engine is hot or running as washer fluid
contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
■ Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle's painted surfaces, as well as
damaging the pump leading to problems of the washer fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.
6-3. Do-it-yourself maintenance
435
Tires
Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.
Checking tires
Check if the treadwear indicators are showing on the tires. Also check
the tires for uneven wear, such as excessive wear on one side of the
tread.
Check the spare tire condition and pressure if not rotated.
1
New tread
6
2
Worn tread
3
Treadwear indicator
The
location
of
treadwear indicators is
shown by
a
“TWI” or “”
mark,
etc., molded
into
the sidewall of
each
tire.
Replace
the
tires
if the treadwear
indicators are showing on a tire.
436
6-3. Do-it-yourself maintenance
Tire rotation
Vehicles without P245/60R20 tires
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Toyota recommends that
tire rotation is carried out at the
Front
same interval as tire inspection.
Vehicles with P245/60R20 tires
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Toyota recommends that
tire rotation is carried out at the
same interval as tire inspection.
Front
6-3. Do-it-yourself maintenance
437
Tire pressure warning system
Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valve and transmitters to detect low tire inflation
pressure before serious problems arise.
● The tire pressure detected by
the tire pressure warning sys-
tem can be displayed on the
multi-information display.
*: If equipped
*
● If the tire pressure drops below
a predetermined level, the
driver is warned by a screen
display and a warning light.
(P. 490)
*
*: If equipped
6
438
6-3. Do-it-yourself maintenance
◆ Installing tire pressure warning valve and transmitters
When replacing the tires or wheels, the tire pressure warning valve
and transmitters must be installed to the wheels which will be
installed to the vehicle.
When new tire pressure warning valve and transmitters are
installed, new ID codes must be registered in the tire pressure
warning computer and the tire pressure warning system must be
initialized. (P. 439)
◆ Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the fol-
lowing circumstances:
● When the tire inflation pressure is changed such as when chang-
ing traveling speed or load weight.
● When the tire inflation pressure is changed such as when the tire
size is changed.
● When rotating the tires.
● After performing the transmitter ID code registration procedure.
(P. 439)
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the benchmark pressure.
■ How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the engine switch off.
1
The initialization procedure cannot be started while the vehicle is
moving.
2
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (P. 540)
Make sure to adjust the tire pressure to the specified cold tire infla-
tion pressure level. The tire pressure warning system will operate
based on this pressure level.
3
Start the engine. (P. 207, 210)
4
Select
on the multi-information display using the meter con-
trol switches on the steering wheel. (P. 98)
5
Select “Vehicle Settings” and then press and hold
6
Select “TPWS” and then press
6-3. Do-it-yourself maintenance
439
7
Select
“Set Pressure” then
press and hold
until the
tire pressure warning light
blinks 3 times.
Then a message will be dis-
played on the multi-information
display.
“---” will be displayed on the
multi-information display for
the inflation pressure of each
tire while initialization is being
performed.
Drive straight (with occasional left and right turns) at approxi-
8
mately 25 mph (40 km/h) or more for approximately 10 to 30 min-
utes.
Initialization is complete when the position of each tire is determined
and the inflation pressure of each tire is displayed on the multi-infor-
mation display.
Initialization may take longer than approximately 1 hour in certain
situations, such as when the vehicle is stopped for a long time at
traffic lights, etc. (P. 444)
◆ Registering ID codes
6
Every tire pressure warning valve and transmitter has a unique ID
code. When replacing a tire pressure warning valve and transmitter,
it is necessary to register the ID codes.
The ID codes can be registered on
of the multi-information dis-
play.
440
6-3. Do-it-yourself maintenance
■ How to register the ID codes
1
Select
on the multi-information display using the meter con-
trol switches on the steering wheel. (P. 98)
2
Select “Vehicle Settings” and then press and hold
3
Select “TPWS” and then press
4
Select “Change Wheel Set”
then press and hold
until
the tire pressure warning
light blinks slowly 3 times.
Then a message will be dis-
played on the multi-information
display.
When registration is being per-
formed, the tire pressure warn-
ing light
will
blink
for
approximately
1 minute then
illuminate and “---” will be dis-
played for the inflation pres-
sure of each tire on the multi-
information display.
Drive straight (with occasional left and right turns) at approxi-
5
mately 25 mph (40 km/h) or more for approximately 10 to 30 min-
utes.
Registration is complete when the tire pressure warning light turns
off and the inflation pressure of each tire is displayed on the multi-
information display.
Registration may take longer than approximately 1 hour in certain
situations, such as when the vehicle is stopped for a long time at
traffic lights, etc. (P. 445)
After registering the ID codes, make sure to initialize the tire pres-
sure warning system. (P. 438)
6-3. Do-it-yourself maintenance
441
■When to replace your vehicle’s tires
Tires should be replaced if:
●The treadwear indicators are showing on a tire.
● You have tire damage such as cuts, splits, cracks deep enough to
expose the fabric, and bulges indicating internal damage
● A tire goes flat repeatedly or cannot be properly repaired due to the size
or location of a cut or other damage
If you are not sure, consult with your Toyota dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not reg-
istered, the tire pressure warning system will not work properly. After driv-
ing for about 20 minutes, the tire pressure warning light blinks for 1
minute and stays on to indicate a system malfunction.
■ Tire life
Any tire over 6 years old must be checked by a qualified technician even
if it has seldom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.
■Maximum load of tire
6
Check that the number given by dividing the maximum load by
1.10 of the
replacement tire is greater than 1/2 of the Gross Axle Weight Ratings
(GAWR) of either the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the tire,
see the load limit at maximum cold tire
inflation pressure mentioned on the
sidewall of the tire. (P. 545)
442
6-3. Do-it-yourself maintenance
■ Tire types
●Summer tires
Summer tires are high-speed performance tires best suited to highway
driving under dry conditions. Since summer tires do not have the same
traction performance as snow tires, summer tires are inadequate for
driving on snow-covered or icy roads. For driving on snow-covered
roads or icy roads, the use of snow tires is recommended. When install-
ing snow tires, be sure to replace all four tires.
●All season tires
All season tires are designed to provide better traction in snow and to
be adequate for driving in most winter conditions as well as for use
year-round. All season tires, however, do not have adequate traction
performance compared with snow tires in heavy or loose snow. Also, all
season tires fall short in acceleration and handling performance com-
pared with summer tires in highway driving.
● Snow tires
For driving on snow-covered roads or icy roads, we recommend using
snow tires. If you need snow tires, select tires of the same size, con-
struction and load capacity as the originally installed tires. Since your
vehicle has radial tires as original equipment, make sure your snow
tires also have radial construction. Do not install studded tires without
first checking local regulations for possible restrictions. Snow tires
should be installed on all wheels. (P. 342)
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
■ Warning performance of the tire pressure warning system
The warning of the tire pressure warning system will change in accor-
dance with the conditions under which it was initialized. For this reason,
the system may give a warning even if the tire pressure does not reach a
low enough level, or if the pressure is higher than the pressure that was
adjusted to when the system was initialized.
6-3. Do-it-yourself maintenance
443
■ Situations in which the tire pressure warning system may not oper-
ate properly
● In the following cases, the tire pressure warning system may not operate
properly.
• If non-genuine Toyota wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equip-
ment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified
level.
• If the spare tire is in a location subject to poor radio wave signal
reception.
• If a large metallic object which can interfere with signal reception is
put near the spare tire.
• If tires not equipped with the tire pressure warning valves and trans-
mitters are used.
• If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large
display, airport or other facility that generates strong radio waves or
6
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication device
● When the vehicle is parked, the time taken for the warning to start or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.
444
6-3. Do-it-yourself maintenance
■The initialization operation
●Make sure to carry out initialization after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold before carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the engine switch to the “LOCK” position
(vehicles without a smart key system) or off (vehicles with a smart key
system) during initialization, it is not necessary to press the reset switch
again as initialization will restart automatically when the engine switch
has been turned to the “ON” position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system) for the
next time.
●If you accidentally press the reset switch when initialization is not neces-
sary, adjust the tire inflation pressure to the specified level when the
tires are cold, and conduct initialization again.
●While the position of each tire is being determined and the inflation pres-
sures are not being displayed on the multi-information display, if the
inflation pressure of a tire drops, the tire pressure warning light will come
on.
■When initialization of the tire pressure warning system has failed
●Do not move the vehicle backward during initialization. Initialization is
started again from the beginning and it may take longer than usual.
● Initialization may take longer to complete if the vehicle is driven on an
unpaved road.
When performing initialization, drive on a paved road if possible.
Depending on the driving environment and condition of the tires, initial-
ization will be completed in approximately 10 to 30 minutes.
• If initialization is not complete after driving approximately 30 minutes,
continue driving for a while.
• If initialization is not complete after driving approximately 1 hour, park
the vehicle in a safe place for approximately 20 minutes. Then drive
straight (with occasional left and right turns) at approximately 25 mph
(40 km/h) or more* for approximately 10 to 30 minutes.
• If initialization is still not complete, have the vehicle inspected by your
Toyota dealer.
*: Except when making a left/right turn
●In the following situations, the tire inflation pressure will not be recorded
and the system will not operate properly. Perform initialization again.
• When operating the tire pressure warning reset switch, the tire pres-
sure warning light does not blink 3 times.
• After performing initialization, the tire pressure warning light blinks for
1 minute then stays on after driving for about 20 minutes.
6-3. Do-it-yourself maintenance
445
■ When ID code registration has failed
●Registration may take long time or the ID codes may not be registered in
the following situations.
• When the vehicle is moved backward during registration.
Registration is started again from the beginning and it may take lon-
ger than usual.
• When another vehicle is running the side of the vehicle such as in
heavy traffic.
It may take longer to detect the vehicle’ tire pressure warning valves
and transmitters.
• If tire pressure warning valves and transmitters are in the vehicle.
The ID codes may not be registered.
●When performing registration, drive on a paved road if possible.
Depending on the driving environment and condition of the tires, regis-
tration will be completed in approximately 10 to 30 minutes.
• If registration is not complete after driving approximately 30 minutes,
continue driving for a while.
• If registration is not complete after driving approximately 1 hour, park
the vehicle in a safe place for approximately 20 minutes. Then drive
straight (with occasional left and right turns) at approximately 40 km/h
(25 mph) or more* for approximately 10 to 30 minutes.
If registration is still not complete, have the vehicle inspected by your
Toyota dealer.
: Except when making a left/right turn
●When the tire pressure warning light does not blink slowly 3 times, the
6
ID code will not be registered and the system will not operate properly.
Perform registration again.
■When registering ID codes
●Initialize the tire pressure warning system after ID code registration. Ini-
tialization is disabled if the system was initialized before registration.
●After ID code registration, the tires are hot by driving. Initialize the tire
pressure warning system after the tires become cold.
■Canceling the change wheel set mode
●If turning the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system) when in the
change wheel set mode before driving, the change wheel set mode is
canceled.
●After driving when in the change wheel set mode, the change wheel set
mode cannot be canceled. To cancel the mode, perform the procedure
for ID code registration again and turn the engine switch to the “LOCK”
position (vehicles without a smart key system) or off (vehicles with a
smart key system) before driving.
●If the change wheel set mode is canceled, the ID codes that have
already been registered are communicated. When communication is fin-
ished, the tire pressure warning light will turn off.
446
6-3. Do-it-yourself maintenance
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident
resulting in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
● Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
● Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first
adjusting the tire inflation pressure to the specified level. Otherwise, the
tire pressure warning light may not come on even if the tire inflation
pressure is low, or it may come on when the tire inflation pressure is
actually normal.
6-3. Do-it-yourself maintenance
447
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves,
transmitters and tire valve caps
●When removing or fitting the wheels, tires or the tire pressure warning
valves and transmitters, contact your Toyota dealer as the tire pres-
sure warning valves and transmitters may be damaged if not handled
correctly.
● Make sure to install the tire valve caps. If the tire valve caps are not
installed, water could enter the tire pressure warning valves and the
tire pressure warning valves could be bound.
●When replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.
■ To avoid damage to the tire pressure warning valves and transmit-
ters
When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Toyota dealer or other qualified service shop as soon
as possible. Make sure to replace the tire pressure warning valve and
transmitter when replacing the tire. (P. 438)
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or pot-
6
holes.
These conditions may cause losses in tire inflation pressure, reducing
the cushioning ability of the tires. In addition, driving on rough roads
may cause damage to the tires themselves, as well as the vehicle’s
wheels and body.
■If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
448
6-3. Do-it-yourself maintenance
Tire inflation pressure
Tire inflation pressure
The recommended cold tire
infla-
tion pressure and tire size are dis-
played on the tire and loading
information label. (P. 545)
6-3. Do-it-yourself maintenance
449
Inspection and adjustment procedure
1
Tire valve
2
Tire pressure gauge
1
Remove the tire valve cap.
2
Press the tip of the tire pressure gauge onto the tire valve.
3
Read the pressure using the gauge gradations.
4
If the tire inflation pressure is not at the recommended level, adjust
the pressure.
If you add too much air, press the center of the valve to deflate.
After completing the tire inflation pressure measurement and
5
adjustment, apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.
6
6
■ Tire inflation pressure check interval
You should check tire inflation pressure every two weeks, or at least once
a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by your Toyota dealer.
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