Toyota C-HR (2022 year). Manual in english

6-3. Do-it-yourself maintenance

379

◆ Registering ID codes

The tire pressure warning valve and transmitter is equipped with a

unique ID code. When replacing a tire pressure warning valve and

transmitter, it is necessary to register the ID code. Have the ID code

registered by your Toyota dealer.

■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 use, 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.

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6-3. Do-it-yourself maintenance

■Maximum load of tire

Check that the maximum load 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. 487)

■ 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. 307)

■If the tread on snow tires wears down below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is lost.

6-3. Do-it-yourself maintenance

381

■ 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.

• An auxiliary-supported run-flat tire is 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 wheels without the tire pressure warning valves and transmitters

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

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.

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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 off during initialization,

it is not necessary to press the reset switch again as initialization will

restart automatically when the engine switch to the “ON” position (vehi-

cles without a smart key system) 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.

■ Warning performance of the tire pressure warning system

The warning of the tire pressure warning system will change in accor-

dance with driving conditions. 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.

■When initialization of the tire pressure warning system has failed

Initialization can be completed in a few minutes. However, in the following

cases, the settings have not been recorded and the system will not oper-

ate properly. If repeated attempts to record tire inflation pressure settings

are unsuccessful, have the vehicle inspected by your Toyota dealer.

●When operating the initialization of the system, the tire pressure warning

light does not blink 3 times and the setting message does not appear on

the multi-information display.

● After driving for a certain period of time since the initialization has been

completed, the warning light comes on after blinking for 1 minute.

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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.

● Do not tow if your vehicle has a compact spare tire installed.

■When initializing the tire pressure warning system

Do not initialize tire pressure warning system 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

385

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. 377)

■Driving on rough roads

Take particular care when driving on roads with loose surfaces or pot-

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.

6-3. Do-it-yourself maintenance

387

Inspection and adjustment procedure

Tire valve

Tire pressure gauge

Remove the tire valve cap.

Press the tip of the tire pressure gauge onto the tire valve.

Read the pressure using the gauge gradations.

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

adjustment, apply soapy water to the valve and check for leakage.

Put the tire valve cap back on.

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6-3. Do-it-yourself maintenance

■ 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 drivetrain

If a tire needs frequent inflating, have it checked by your Toyota dealer.

■Instructions for checking tire inflation pressure

When checking tire inflation pressure, observe the following:

●Check only when the tires are cold.

If your vehicle has been parked for at least 3 hours or has not been

driven for more than 1 mile or 1.5 km, you will get an accurate cold tire

inflation pressure reading.

● Always use a tire pressure gauge.

It is difficult to judge if a tire is properly inflated based only on its appear-

ance.

● It is normal for the tire inflation pressure to be higher after driving as

heat is generated in the tire. Do not reduce tire inflation pressure after

driving.

● Never exceed the vehicle capacity weight.

Passengers and luggage weight should be placed so that the vehicle is

balanced.

6-3. Do-it-yourself maintenance

389

WARNING

■Proper inflation is critical to save tire performance

Keep your tires properly inflated.

If the tires are not properly inflated, the following conditions may occur

which could lead to an accident resulting in death or serious injury:

●Excessive wear

●Uneven wear

●Poor handling

● Possibility of blowouts resulting from overheated tires

● Air leaking from between tire and wheel

●Wheel deformation and/or tire damage

●Greater possibility of tire damage while driving (due to road hazards,

expansion joints, sharp edges in the road, etc.)

NOTICE

■When inspecting and adjusting tire inflation pressure

Be sure to put the tire valve caps back on.

If a valve cap is not installed, dirt or moisture may get into the valve and

cause an air leak, resulting in decreased tire inflation pressure.

390

6-3. Do-it-yourself maintenance

Wheels

If a wheel is bent, cracked or heavily corroded, it should be

replaced. Otherwise, the tire may separate from the wheel or

cause a loss of handling control.

Wheel selection

When replacing wheels, care should be taken to ensure that they are

equivalent to those removed in load capacity, diameter, rim width and

inset*.

Replacement wheels are available at your Toyota dealer.

*: Conventionally referred to as “offset”.

Toyota does not recommend using the following:

● Wheels of different sizes or types

● Used wheels

● Bent wheels that have been straightened

Aluminum wheel precautions (if equipped)

● Use only Toyota wheel nuts and wrenches designed for use with

your aluminum wheels.

● When rotating, repairing or changing your tires, check that the

wheel nuts are still tight after driving 1000 miles (1600 km).

● Be careful not to damage the aluminum wheels when using tire

chains.

● Use only Toyota genuine balance weights or equivalent and a plas-

tic or rubber hammer when balancing your wheels.

■When replacing wheels

The wheels of your vehicle are equipped with tire pressure warning

valves and transmitters that allow the tire pressure warning system to

provide advance warning in the event of a loss in tire inflation pressure.

Whenever wheels are replaced, tire pressure warning valves and trans-

mitters must be installed. (P. 377)

6-3. Do-it-yourself maintenance

391

WARNING

■When replacing wheels

● Do not use wheels that are a different size from those recommended in

the Owner’s Manual, as this may result in a loss of handling control.

●Never use an inner tube in a leaking wheel which is designed for a

tubeless tire. Doing so may result in an accident, causing death or seri-

ous injury.

■When installing the wheel nuts

●Be sure to install the wheel nuts with the tapered ends facing inward.

(P. 456) Installing the nuts with the tapered ends facing outward can

cause the wheel to break and eventually cause the wheel to come off

while driving, which could lead to an accident resulting in death or seri-

ous injury.

● Never use oil or grease on the wheel bolts or wheel nuts.

Oil and grease may cause the wheel nuts to be excessively tightened,

leading to bolt or disc wheel damage. In addition, the oil or grease can

cause the wheel nuts to loosen and the wheel may fall off, causing an

accident and resulting in death or serious injury. Remove any oil or

grease from the wheel bolts or wheel nuts.

■Use of defective wheels prohibited

Do not use cracked or deformed wheels.

Doing so could cause the tire to leak air during driving, possibly causing

an accident.

392

6-3. Do-it-yourself maintenance

NOTICE

■Replacing tire pressure warning valves and transmitters

●Because tire repair or replacement may affect the tire pressure warn-

ing valves and transmitters, make sure to have tires serviced by your

Toyota dealer or other qualified service shop. In addition, make sure to

purchase your tire pressure warning valves and transmitters at your

Toyota dealer.

●Ensure that only genuine Toyota wheels are used on your vehicle.

Tire pressure warning valves and transmitters may not work properly

with non-genuine wheels.

6-3. Do-it-yourself maintenance

393

Air conditioning filter

The air conditioning filter must be changed regularly to maintain

air conditioning efficiency.

Removal method

Turn the engine switch off.

Open the glove box. Slide off

the damper.

Push in each side of the glove

box to disconnect the claws,

and then slowly and fully open

the glove box while supporting

it.

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6-3. Do-it-yourself maintenance

With the glove box fully open,

slightly lift up the glove box and

pull toward the seat to detach

the bottom of the glove box.

Do not use excessive force if the

glove box does not detach when

lightly pulled. Instead, pull toward

the seat while slightly adjusting the

height of the glove box.

 Type A

Remove the filter cover.

Remove the air conditioning fil-

ter and replace it with a new

one.

The “UP” marks shown on the fil-

ter should be pointing up.

When installing, reverse the steps listed.

6-3. Do-it-yourself maintenance

395

 Type B

Remove the filter cover.

Unlock the filter cover.

Move the filter cover in the

direction of the arrow, and

then pull it out of the claws.

Remove the filter case.

Remove the air conditioning fil-

ter from the filter case and

replace it with a new one.

The “UP” marks shown on the fil-

ter should be pointing up.

When installing, reverse the steps listed.

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6-3. Do-it-yourself maintenance

■ Checking interval

Inspect and replace the air conditioning filter according to the maintenance

schedule. In dusty areas or areas with heavy traffic flow, early replacement

may be required. (For scheduled maintenance information, please refer to the

“Schedule maintenance guide” or “Owner’s Manual Supplement”.)

■ If air flow from the vents decreases dramatically

The filter may be clogged. Check the filter and replace if necessary.

NOTICE

■ When using the air conditioning system

Make sure that a filter is always installed.

Using the air conditioning system without a filter may cause damage to the

system.

■When removing the glove box

Always follow the specified procedure to remove the glove box (P. 393). If

the glove box is removed without following the specified procedure, the

hinge of the glove box may become damaged.

■ To prevent damage to the filter cover

When moving the filter cover in the direc-

tion of arrow to release the fitting, pay

attention not to apply excessive force to

the claws. Otherwise, the claws may be

damaged.

6-3. Do-it-yourself maintenance

397

Wireless remote control/electronic key bat-

tery

Replace the battery with a new one if it is depleted.

You will need the following items:

● Flathead screwdriver

● Small flathead screwdriver

● Lithium battery CR2032

Replacing the battery

 Vehicles without a smart key system

Remove the cover.

To prevent damage to the key,

cover the tip of the screwdriver with

a rag.

Remove the battery cover.

If the battery cover is difficult to

remove, lift the edge to remove it.

Remove the depleted battery

using a small flathead screw-

driver.

Insert a new battery with the “+”

terminal facing up.

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6-3. Do-it-yourself maintenance

Install the battery cover with the

tab facing up.

Push the entire edge of the battery

cover into the key.

Install the key cover.

Align the key cover with the key

and then press it straight into the

key.

Make sure that the key cover is

securely installed without any gaps

between it and the key.

 Vehicles with a smart key system

Release the lock and take out

the mechanical key.

Remove the cover.

Use an appropriate sized flathead

screwdriver. Forceful prying may

deform the cover.

To prevent damage to the key,

cover the tip of the screwdriver with

a rag.

6-3. Do-it-yourself maintenance

399

Remove the depleted battery.

When removing the cover, if the

battery cannot be seen due to the

electronic key module attaching to

the upper cover, remove the elec-

tronic key module from the cover

so that the battery is visible as

shown in the illustration.

Use an appropriate sized flathead

screwdriver when removing the

battery.

Insert a new battery with the “+” terminal facing up.

When installing, reverse the steps listed.

■ Use a CR2032 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 manu-

facturer.

● Dispose of used batteries according to local laws.

■ If the key battery is depleted

The following symptoms may occur:

● The smart key system (if equipped) and wireless remote control will not

function properly.

● The operational range will be reduced.

400

6-3. Do-it-yourself maintenance

WARNING

■ Battery precautions

Observe the following precautions.

Failure to do so may result in death or serious injury.

● Do not swallow the battery. Doing so may cause chemical burns.

● A coin battery or button battery is used in the wireless remote control key

(vehicles without a smart key system) or electronic key (vehicles with a

smart key system). 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 wireless remote control

key (vehicles without a smart key system) or electronic key (vehicles with

a smart key system) 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

body, get emergency medical attention immediately.

■ To prevent battery explosion or leakage of flammable liquid 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 pressure due to high altitude or

extremely high temperatures.

● Do not burn, break or cut a battery.

NOTICE

■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.

6-3. Do-it-yourself maintenance

401

Checking and replacing fuses

If any of the electrical components do not operate, a fuse may

have blown. If this happens, check and replace the fuses as nec-

essary.

Turn the engine switch off.

Open the fuse box cover.

 Engine compartment type A fuse box

While pushing the 2 claws, lift

up the cover.

When closing the cover, make sure

to attach the 2 claws.

 Engine compartment type B fuse box

While pushing the 3 claws, lift

up the cover.

When closing the cover, make sure

to attach the 3 claws.

 Engine compartment type C fuse box

While pushing the 2 claws, lift

up the cover.

When closing the cover, make sure

to attach the 2 claws.

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6-3. Do-it-yourself maintenance

■ After a fuse is replaced

● If the lights do not turn on even after the fuse has been replaced, a bulb may

need replacement. (P. 407)

● If the replaced fuse blows again, have the vehicle inspected by your Toyota

dealer.

■ If there is an overload in a circuit

The fuses are designed to blow, protecting the wiring harness from damage.

■ When replacing light bulbs

Toyota recommends that you use genuine Toyota products designed for this

vehicle. Because certain bulbs are connected to circuits designed to prevent

overload, non-genuine parts or parts not designed for this vehicle may be

unusable.

WARNING

■ To prevent system breakdowns and vehicle fire

Observe the following precautions.

Failure to do so may cause damage to the vehicle, and possibly a fire or

injury.

● Never use a fuse of a higher amperage rating than that indicated, or use

any other object in place of a fuse.

● Always use a genuine Toyota fuse or equivalent.

Never replace a fuse with a wire, even as a temporary fix.

● Do not modify the fuses or fuse boxes.

NOTICE

■ Before replacing fuses

Have the cause of electrical overload determined and repaired by your

Toyota dealer as soon as possible.

6-3. Do-it-yourself maintenance

405

Headlight aim (vehicles with front fog

lights)

Vertical movement adjusting bolts

Adjustment bolt A

Adjustment bolt B

Before checking the headlight aim

Make sure the vehicle has a full tank of gasoline and the area

around the headlight is not deformed.

Park the vehicle on level ground.

Sit in the driver’s seat.

Bounce the vehicle several times.

406

6-3. Do-it-yourself maintenance

Adjusting the headlight aim

Using a Phillips-head screw-

driver, turn bolt A in either direc-

tion.

Remember the turning direction

and the number of turns.

Turn bolt B the same number of

turns and in the same direction

as step

If the headlight cannot be adjusted

using this procedure, take the vehi-

cle to your Toyota dealer to adjust

the headlight aim.

6-3. Do-it-yourself maintenance

407

Light bulbs

You may replace the following bulbs yourself. The difficulty level

of replacement varies depending on the bulb. If necessary bulb

replacement seems difficult to perform, contact your Toyota

dealer.

For more information about replacing other light bulbs, contact

your Toyota dealer.

Preparing for light bulb replacement

Check the wattage of the light bulb to be replaced. (P. 483)

Bulb locations

■ Front

Front turn signal lights (bulb type)

Front side marker lights (bulb type)

Side turn signal lights

Toyota C-HR (2022 year). Manual in english - page 13