LEXUS IS 350 (2019 year). Instruction — part 31
488
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
■
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 your Lexus dealer.
■
Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not registered, the tire
pressure warning system will not work properly. After driving for about 20 minutes, the
tire pressure warning light blinks for 1 minute and stays on to indicate a system malfunc-
tion.
■
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.
■
When rotating the tires
Make sure that the engine switch is off. If the tires are rotated while the engine switch is in
IGNITION ON mode, the tire position information will not be updated.
If this accidentally occurs, either turn the engine switch to off and then to IGNITION ON
mode, or initialize the system after checking that the tire pressure is properly adjusted.
■
Low profile tires
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when compared to standard tires. Be sure to use
snow tires or tire chains
*
on snowy and/or icy roads and drive carefully at a speed appro-
priate for road and weather conditions.
*
: Tire chains cannot be mounted on the 18-inch tires. Snow tires should be used instead.
489
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
■
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.
■
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 installing 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, how-
ever, 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 perfor-
mance compared 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, construction 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. (
■
If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
For the GAWR, see the Certification Label. For
the maximum load of the tire, see the load limit
at maximum cold tire inflation pressure men-
tioned on the sidewall of the tire. (
490
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
■
Situations in which the tire pressure warning system may not operate properly
●
In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) 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 tires not equipped with 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, air-
port 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
If tire position information is not correctly displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions.
●
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.
■
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 pres-
sure adjustment.
●
If you have accidentally turned the engine switch off during initialization, it is not neces-
sary to press the reset switch again as initialization will restart automatically when the
engine switch has been turned to IGNITION 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 initial-
ization 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 set-
tings 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 your Lexus 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.
491
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
■
Tire pressure warning system certification
●
Transmitter
For vehicles sold in the U.S.A.
For vehicles sold in Canada
492
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
●
Initiator
For vehicles sold in the U.S.A.
For vehicles sold in Canada
493
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
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 dangerous han-
dling 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 Lexus.
●
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 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.
■
Caution regarding interference with electronic devices
●
Users of any electrical medical device other than implantable cardiac pacemakers,
cardiac resynchronization therapy-pacemakers or implantable cardioverter defibril-
lators should consult the manufacturer of the device for information about its opera-
tion under the influence of radio waves.
Radio waves could have unexpected effects on the operation of such medical
devices.
●
People with implantable cardiac pacemakers,
cardiac resynchronization therapy-pacemak-
ers or implantable cardioverter defibrillators
should not come within 17.7 in. (450 mm) of
the tire pressure warning system initiators.
The radio waves may affect the operation of
such devices.
494
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
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 Lexus dealer as the tire pressure warning valves and trans-
mitters 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 transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and trans-
mitter may not operate properly. If a liquid sealant is used, contact your Lexus dealer or
other qualified service shop as soon as possible. After use of liquid sealant, make sure
to replace the tire pressure warning valve and transmitter when repairing or replacing
the tire. (
■
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.
■
Low profile tires
Low profile tires may cause greater damage than usual to the tire wheel when sustain-
ing impact from the road surface. Therefore, pay attention to the following:
●
Be sure to use proper tire inflation pressure. If tires are under-inflated, they may be
damaged more severely.
●
Avoid potholes, uneven pavement, curbs and other road hazards. Failure to do so
may lead to severe tire and wheel damage.
■
If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
495
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(
Tire inflation pressure
Tire inflation pressure
496
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
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 pres-
sure.
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.
■
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 Lexus dealer.
Inspection and adjustment procedure
1
2
1
2
3
4
5
6
497
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
■
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 appearance.
●
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.
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.
498
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
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 Lexus dealer.
*
: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
●
Wheels of different sizes or types
●
Used wheels
●
Bent wheels that have been straightened
●
Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num 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 Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels.
■
When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters 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 transmitters must be installed. (
Wheels
If a wheel is bent, cracked or heavily corroded, it should be replaced. Other-
wise, the tire may separate from the wheel or cause a loss of handling control.
Wheel selection
Aluminum wheel precautions
499
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
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 serious injury.
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 your Lexus dealer or other qualified
service shop. In addition, make sure to purchase your tire pressure warning valves
and transmitters at your Lexus dealer.
●
Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with non-genu-
ine wheels.
500
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
Turn the engine switch off.
Open the glove box. Lift up the side
with the stay, disconnect the stay
tabs and remove the partition by
pulling horizontally.
Press the tabs and remove the filter
cover.
Press the tabs and remove the filter
case.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Removal method
1
2
3
4
501
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The “
UP” marks shown on the filter
and the filter case 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 “Owner’s Manual Supplement”
or “Scheduled Maintenance”.)
■
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
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-
cantly weakened in a short period.
When an air conditioning odor comes out continuously, replace the air conditioning filter.
5
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.
502
7-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
●
Flathead screwdriver
●
Small flathead screwdriver
●
Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, wrap the
tip of the screwdriver with tape.
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
Electronic key battery
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3
503
7-3. Do-it-yourself maintenance
7
Main
tenance an
d care
IS350 AWD/IS350/IS300 AWD/IS300_U
■
Use a CR2032 lithium battery
●
Batteries can be purchased at your Lexus dealer, local electrical appliance shops or
camera stores.
●
Replace only with the same or equivalent type recommended by the manufacturer.
●
Dispose of used batteries according to local laws.
■
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you.
■
If the electronic key battery is depleted
The following symptoms may occur:
●
The smart access system with push-button start 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.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст