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Toyota Highlander Hybrid (2018 year). Instruction - part 32

7-3. Do-it-yourself maintenance

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■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

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. 653)

■ 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

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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. 337)

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

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 pres-

sure.

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

inflation pressure adjustment.

● If you have accidentally turned the power switch to off during initializa-

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

will restart automatically when the power switch has been turned to the

ON mode 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.

■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 tire pressure warning reset switch, the tire pressure

warning light does not blink 3 times.

●After carrying out the initialization procedure, the tire pressure warning

light blinks for 1 minute then stays on after driving for 20 minutes.

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7-3. Do-it-yourself maintenance

■ Tire pressure warning system certification

FCC ID: PAXPMVC010

NOTE:

This device complies with part 15 of the FCC Rules. Operation is subject

to the following two conditions: (1) This device may not cause harmful

interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

FCC WARNING:

Changes or modifications not expressly approved by the party responsi-

ble for compliance could void the user’s authority to operate the equip-

ment.

NOTE:

Operation is subject to the following two conditions: (1) this device may

not cause interference, and (2) this device must accept any interference,

including interference that may cause undesired operation of the device.

NOTE:

L’utilisation de ce dispositif est autorisée seulement aux deux conditions

suivantes : (1) il ne doit pas produire de brouillage, et (2) l’utilisateur du

dispositif doit être prêt à accepter tout brouillage radioélectrique reçu,

même si ce brouillage est susceptible de compromettre le fonctionne-

ment du dispositif.

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.

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

compact spare tire installed.

■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.

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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 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. 524)

■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.

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■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

Tire inflation pressure

The recommended cold tire infla-

tion pressure and tire size are dis-

played on the tire and loading

information label. (→P. 646)

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

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

Put the tire valve cap back on.

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■ 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.

■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.

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

balanced.

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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 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

● 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).

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● 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. 524)

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7-3. Do-it-yourself maintenance

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.

Installing the nuts with the tapered

ends facing outward can cause the

wheel to break and eventually cause

Tapered

the wheel to come off while driving,

which could lead to an accident

portion

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

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

grease from the wheel bolts or wheel nuts.

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.

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Air conditioning filter

The air conditioning filter must be changed regularly to maintain

air conditioning efficiency.

Removal method

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 upper

claws. Then pull out the glove

box and disconnect the lower

claws.

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Pull down the cover.

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Remove the filter cover.

6

Remove the air conditioning fil-

ter and replace it with a new

one.

The “↑UP” marks shown on the

filter should be pointing up.

■ 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.

■Air conditioning filter with deodorizing function

The use of air fresheners may significantly reduce the life span of the deodor-

izing effect.

When an air conditioning odor comes out continuously, replace the air condi-

tioning filter.

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.

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Electronic key battery

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

Take out the mechanical key.

1

Remove the cover.

2

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a rag.

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Remove the depleted battery.

3

Insert a new battery with the “+”

terminal facing up.

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■ 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 and wireless remote control will not function properly.

● The operational range will be reduced.

WARNING

■Removed battery and other parts

These parts are small and if swallowed by a child, they can cause choking.

Keep away from children. Failure to do so could result in death or serious

injury.

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.

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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.

1

Turn the power switch off.

2

Open the fuse box cover.

 Engine compartment (type A fuse box)

Push the tab in and lift the lid off.

 Engine compartment (type B fuse box)

Push the tab in and lift the lid off.

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 Engine compartment (type C fuse box)

Push the tab in and lift the lid off.

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 Under the driver’s side instrument panel

Remove the lid.

 Luggage compartment

Remove the 12-volt battery cover

(→P. 517) and then remove the

terminal cover.

3

Remove the fuse with the pull-

out tool.

Only type A fuses can be removed

using the pullout tool.

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4

Check if the fuse is blown.

1

Normal fuse

2

Blown fuse

Type A and B:

Replace the blown fuse with a new fuse of an appropriate amperage rat-

ing. The amperage rating can be found on the fuse box lid.

Type C:

Contact your Toyota dealer.

 Type A

 Type B

 Type C

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