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Toyota C-HR Hybrid (2017 year). Manual - part 33

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7-3. Do-it-yourself maintenance

■ How to initialize the tire pressure warning system

Park the vehicle in a safe place and turn the power switch off.

1

Initialization cannot be performed while the vehicle is moving.

Adjust the tire inflation pressure to the specified cold tire inflation

2

pressure level. (P. 674)

Make sure to adjust the tire pressure to the specified cold tire inflation

pressure level. The tire pressure warning system will operate based on

this pressure level.

3

Turn the power switch to ON mode.

4

Press “” or “” of the meter control switch to select

(P. 129)

5

Press “” or “” of the meter control switch to select the “Vehicle

Settings” and then press

to display the menu.

6

Press “” or “” of the meter

control switch to select

and then press

and hold

When initialization completes, a message is displayed on the

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multi-information display and the tire pressure warning light will

blink 3 times.

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◆ 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 any authorized Toyota retailer or Toyota authorized

repairer, or any reliable repairer.

■ 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 any authorized Toyota retailer or Toyota

authorized repairer, or any reliable repairer.

■ Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not regis-

tered, the tire pressure warning system will not work properly. After driving for

about 10 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 check

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The tire pressure warning system does not replace routine tire inflation pres-

sure checks. Make sure to check tire inflation pressure as part of your routine

of daily vehicle checks.

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

The effectiveness of the tires as snow tires is lost.

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■ The initialization operation

●Make sure to carry out initialization after adjusting the tire inflation pressure.

Also, make sure the tires are cold before carrying out initialization or tire

inflation pressure adjustment.

●If you have accidentally turned the power switch off during initialization, it is

not necessary to press the reset switch again as initialization will restart

automatically when the power switch has been turned to ON mode for the

next time.

● If you accidentally press the reset switch when initialization is not necessary,

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 accordance

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.

■ 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 operate

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

unsuccessful, have the vehicle inspected by any authorized Toyota retailer or

Toyota authorized repairer, or any reliable repairer as soon as possible.

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

light does not flash 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

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

■ Registering ID codes

The ID codes of the tire pressure warning valve and transmitters for two sets

of wheels can be registered.

It is not necessary to register the ID codes when replacing normal tires with

snow tires, if the ID codes for the wheels of both normal tires and snow tires

are registered beforehand.

For information about changing ID codes, ask any authorized Toyota retailer

or Toyota authorized repairer, or any reliable repairer as soon as possible.

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■ Certification for the tire pressure warning system

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WARNING

■ When inspecting or replacing tires

Observe the following precautions to prevent accidents.

Failure to do so may cause damage to parts of the drivetrain as well as dan-

gerous 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.

● Vehicles with a compact spare tire: Do not tow if your vehicle has a com-

pact spare tire installed.

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■ When initializing the tire pressure warning system

Do not initialize the 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.

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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 any authorized Toyota retailer or Toyota

authorized repairer, or any reliable repairer as the tire pressure 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.

■ Driving on rough roads

Take particular care when driving on roads with loose surfaces or potholes.

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.

■ To avoid damage to the tire pressure warning valves and transmitters

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

any authorized Toyota retailer or Toyota authorized repairer, or any reliable

repairer or other qualified service shop as soon as possible. After use of liq-

uid sealant, make sure to replace the tire pressure warning valve and trans-

mitter when repairing or replacing the tire. (P. 543)

■ If tire inflation pressure of each tire becomes low while driving

Do not continue driving, or your tires and/or wheels may be ruined.

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Tire inflation pressure

Make sure to maintain proper tire inflation pressure. Tire infla-

tion pressure should be checked at least once per month. How-

ever, Toyota recommends that tire inflation pressure be checked

once every two weeks. (P. 674)

■ 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 any authorized Toyota

retailer or Toyota authorized repairer, or any reliable repairer.

■ 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 1.5 km or 1 mile, you will get an accurate cold tire inflation

pressure reading.

● Always use a tire pressure gauge.

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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.

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

anced.

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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.

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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 any authorized Toyota retailer or

Toyota authorized repairer, or any reliable repairer.

*: 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

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

your aluminum wheels.

7

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

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

● 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.

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■ When replacing wheels

The wheels of your vehicle are equipped with tire pressure warning valves

and transmitters (except for compact spare tire) that allow the tire pressure

warning system to provide advance warning in the event of a loss in tire infla-

tion pressure. Whenever wheels are replaced, tire pressure warning valves

and transmitters must be installed. (P. 543)

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 tube-

less tire. Doing so may result in an accident, causing death or serious

injury.

■ When installing the wheel nuts

●Be sure to install the wheel nuts with the

tapered ends facing inward. Installing

Tapered

the nuts with the tapered ends facing

portion

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 serious

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 acci-

dent and resulting in death or serious injury. Remove any oil or grease

from the wheel bolts or wheel nuts.

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WARNING

■ 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.

■ Handling the wheels (vehicles with 16-inch wheels)

If the wheel cap is grasped when holding

the wheel, it may suddenly disconnect

and the wheel may be dropped.

NOTICE

■ Replacing tire pressure warning valves and transmitters

● Because tire repair or replacement may affect the tire pressure warning

valves and transmitters, make sure to have tires serviced by any autho-

rized Toyota retailer or Toyota authorized repairer, or any reliable repairer

or other qualified service shop. In addition, make sure to purchase your

tire pressure warning valves and transmitters at any authorized Toyota

retailer or Toyota authorized repairer, or any reliable repairer.

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

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Tire pressure warning valves and transmitters may not work properly with

non-genuine wheels.

■ Handling the decorative resin parts (for vehicles equipped with 16-inch

tires)

If there is rattling in the decorative resin parts, or strange sounds from the

wheel area when driving, have your wheels inspected by any authorized

Toyota retailer or Toyota authorized repairer, or any reliable repairer.

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7-3. Do-it-yourself maintenance

Air conditioning filter

The air conditioning filter must be changed regularly to maintain

air conditioning efficiency.

Replacing the air conditioning filter

1

Turn the power switch off.

2

Open the glove box. Slide off

the damper.

Push in each side of the glove

3

box to disconnect the claws,

and then slowly and fully open

the glove box while supporting

it.

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4

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

5

Remove the filter cover.

1

Unlock the filter cover.

2

Move the filter cover in the

direction of the arrow, and

then pull it out of the claws.

Remove the filter case.

6

7

Remove the air conditioning fil-

7

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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■ 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

“Toyota Service Booklet” or “Toyota Warranty Booklet”.)

■ 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. 558). 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.

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