Lexus LX600 (2022 year). Manual in english — page 28
461
6-3. Do-it-yourself maintenance
6
Maintenance and
care
If you cannot find a leak, have your Lexus
dealer, test the cap and check for leaks in
the cooling system.
Check the engine radiator, condenser
and intercooler radiator and clear any
foreign objects. If any of the above
parts are extremely dirty or you are not
sure of their condition, have your vehi-
cle inspected by your Lexus dealer.
■
Keep the engine compartment
cover opened or removing the
cover
■
Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■
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
FMVSS No.116 DOT 4 or SAE J1704
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 proce-
WARNING
■
When the engine is hot
Do not remove the engine coolant reser-
voir cap or intercooler coolant reservoir
cap.
The cooling system may be under pres-
sure 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 pre-
vent it from damaging parts or paint.
Checking the engine radiator,
condenser and intercooler radi-
ator
WARNING
■
When the engine is hot
Do not touch the engine radiator, con-
denser or intercooler radiator as they
may be hot and cause serious injuries,
such as burns.
Checking and adding the brake
fluid
462
6-3. Do-it-yourself maintenance
dure above, the reservoir may
overflow
■
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.
Check the battery as follows.
■
Keep the engine compartment
cover opened or removing the
cover
■
Battery exterior
Make sure that the battery terminals
are not corroded and that there are no
loose connections, cracks, or loose
clamps.
Terminals
Clamp
■
Checking battery fluid
Check that the level is between the
upper and lower lines.
Upper line
Lower line
If the fluid level is at or below the lower line,
add distilled water.
■
Checking the battery condition
(vehicles with battery indicator)
Check the battery condition by indica-
tor color.
WARNING
■
When filling the reservoir
Take care as brake fluid can harm your
hands and eyes and damage painted sur-
faces.
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.
Checking the battery
A
B
A
B
463
6-3. Do-it-yourself maintenance
6
Maintenance and
care
Red and clear: Replacement is nec-
essary. Have the battery checked
by your Lexus dealer.
Clear and red: Charging is neces-
sary. Have the vehicle inspected by
your Lexus dealer.
Blue and red: Good condition
■
Adding distilled water
1
Remove the vent plug.
2
Add distilled water.
If the upper line cannot be seen, check the
fluid level by looking directly at the cell.
LOW
O.K.
3
Put the vent plug back on and close
it securely.
■
Install the engine compartment
cover
■
Before recharging
When recharging, the battery produces
hydrogen gas which is flammable and
explosive. Therefore, observe the following
precautions 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 char-
ger is off when connecting and discon-
necting the charger cables to the battery.
■
After recharging/reconnecting the bat-
tery
The engine may not start. Follow the proce-
dure 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
access system with push-button start may
not be possible immediately after recon-
necting 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
ACC. The engine may not start with the
engine switch turned off. However, the
engine will operate normally from the
second attempt.
●
The engine switch mode is recorded by
the vehicle. If the battery is reconnected,
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 connect-
ing the battery if the engine switch mode
prior to discharge is unknown.
If the engine will not start even after multiple
attempts, contact your Lexus dealer.
A
B
C
A
B
464
6-3. Do-it-yourself maintenance
If none of the washer does not work or
the “Windshield Washer Fluid Low”
appears on the multi-information dis-
play, the washer tank may be empty.
Add washer fluid.
WARNING
■
Chemicals in the battery
A battery contains poisonous and corro-
sive sulfuric acid and may produce
hydrogen gas which is flammable and
explosive. To reduce the risk of death or
serious injury, take the following precau-
tions while working on or near the bat-
tery:
●
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.
■
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
not sufficient ventilation.
■
Emergency measures regarding
electrolyte
●
If electrolyte gets in your eyes
Flush your eyes with clean water for at
least 15 minutes and get immediate
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 clothing
and follow the procedure above if nec-
essary.
●
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 acces-
sories are turned off.
■
When adding distilled water
Avoid overfilling. Water spilled during
battery recharging may cause corrosion.
Adding the washer fluid
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.
465
6-3. Do-it-yourself maintenance
6
Maintenance and
care
Check if the treadwear indicators are
showing on the tires. Also check the
tires for uneven wear, such as exces-
sive wear on one side of the tread.
Check the spare tire condition and
pressure if not rotated.
New tread
Worn tread
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 indica-
tors are showing on a tire.
NOTICE
■
Do not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze 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 neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
Tires
Replace or rotate tires in accor-
dance with maintenance schedules
and treadwear.
Checking tires
A
B
C
466
6-3. Do-it-yourself maintenance
■
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 loca-
tion of a cut or other damage.
If you are not sure, consult with your Lexus
dealer.
■
Tire life
Any tire over 6 years old must be checked
by a qualified technician even if it has sel-
dom or never been used or damage is not
obvious.
■
Maximum load of tire
Check that the number given by dividing
the maximum load by 1.10 of the replace-
ment 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. (
■
Tire types
●
Summer tires
Summer tires are high-speed perfor-
mance tires best suited to highway driv-
ing under dry conditions. Since summer
tires do not have the same traction per-
formance as snow tires, summer tires are
inadequate for driving on snow-covered
or icy roads. For driving on snow-cov-
ered 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 ade-
quate for driving in most winter condi-
tions as well as for use year-round. All
season tires, however, do not have ade-
quate traction performance compared
with snow tires in heavy or loose snow.
Also, all season tires fall short in accelera-
tion 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, construction and load capacity
as the originally installed tires. Since your
vehicle has radial tires as original equip-
ment, 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.
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 danger-
ous 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 Lexus.
467
6-3. Do-it-yourself maintenance
6
Maintenance and
care
Rotate the tires in the order shown.
To equalize tire wear and extend tire life,
Lexus recommends that tire rotation is car-
ried out at the same interval as tire inspec-
tion.
Do not fail to initialize the tire pressure
warning system after tire rotation.
■
When rotating the tires
Make sure that the engine switch is OFF. If
the tires are rotated while the engine switch
is in ON, the tire position information will
not be updated.
If this accidentally occurs, either turn the
engine switch to OFF and then to ON, or
initialize the system after checking that the
tire pressure is properly adjusted.
Your vehicle is equipped with a tire
pressure warning system that uses tire
pressure warning valves and transmit-
ters to detect low tire inflation pressure
before serious problems arise.
The tire pressure warning system of
this vehicle adopts a 2-type warning
system
When “Adjust Pressure” is dis-
played (Normal Warning)
The tire pressure warning light comes on
and a buzzer sounds when the tire inflation
pressure becomes low due to natural air
leakage or outside temperature. (Ways of
coping:
When “Immediately Check Tire
when Safe” is displayed (Emergency
Warning)
The tire pressure warning light comes on
and a buzzer sounds when the tire inflation
pressure becomes low suddenly due to a
blowout. (Ways of coping:
However, the system may not be able to
detect sudden tire ruptures (bursting, etc.).
The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
WARNING
●
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.
NOTICE
■
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 cushion-
ing ability of the tires. In addition, driving
on rough roads may cause damage to
the tires themselves, as well as the vehi-
cle’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.
Tire rotation
Tire pressure warning system
468
6-3. Do-it-yourself maintenance
display.
The unit can be changed.
■
How to change the unit
1
Park the vehicle in a safe place and
turn the engine switch off.
Changing the unit cannot be performed
while the vehicle is moving.
2
Turn the engine switch to ON.
3
Press
or
of the meter con-
trol switches on the steering wheel
and select
.
4
Press
or
of the meter con-
trol switches and select “Vehicle
Settings”, and then press
.
5
Press
or
of the meter con-
trol switches and select “TPWS set-
ting”, and then press
.
6
Press
or
of the meter con-
trol switches and select “Setting
Unit”, and then press
.
7
Press
or
of the meter con-
trol switches and select the desired
unit, and then press
.
■
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.
■
Tire inflation pressure
●
It may take a few minutes to display the
tire inflation pressure after the engine
switch is turned to ON. It may also take a
few minutes to display the tire inflation
pressure after inflation pressure has been
adjusted.
●
Tire inflation pressure changes with tem-
perature. The displayed values may also
be different from the values measured
using a tire pressure gauge.
■
Situations in which the tire pressure
warning system may not operate prop-
erly
●
In the following cases, the tire pressure
warning system may not operate prop-
erly.
• 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 vehi-
cle, particularly around the wheels or
wheel housings.
• If the tire inflation pressure is extremely
higher than the specified level.
• If wheels without tire pressure warning
valves and transmitters are used.
• If the ID code on the tire pressure warn-
ing valves and transmitters is not regis-
tered in the tire pressure warning
computer.
●
Performance may be affected in the fol-
lowing 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
If tire position information is not correctly
469
6-3. Do-it-yourself maintenance
6
Maintenance and
care
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 rap-
idly for example when a tire has burst, the
warning may not function.
When replacing tires or wheels, tire
pressure warning valves and transmit-
ters must also be installed.
When new tire pressure warning valves
and transmitters are installed, new ID
codes must be registered in the tire pres-
sure warning computer and the tire pres-
sure warning system must be initialized.
(
■
When replacing the 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 min-
utes, the tire pressure warning light blinks
for 1 minute and stays on to indicate a sys-
tem malfunction.
■
The tire pressure warning system
must be initialized in the following
circumstances:
When rotating the tires.
When changing the tire size.
When changing between two regis-
tered wheel sets.
After registering the ID codes.
(
When the tire pressure warning sys-
tem is initialized, the current tire infla-
tion pressure is set as the benchmark
pressure.
■
How to initialize the tire pressure
warning system
1
Park the vehicle in a safe place and
stop the engine for 20 minutes or
more.
Installing tire pressure warning
valves and transmitters
NOTICE
■
Repairing or replacing tires, wheels,
tire pressure warning valves, trans-
mitters 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 warn-
ing 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 transmitters
When a tire is repaired with liquid seal-
ants, the tire pressure warning valve and
transmitter may not operate properly. If a
liquid sealant is used, contact your Lexus
dealer or other qualified service shop as
soon as possible. Make sure to replace
the tire pressure warning valve and
transmitter when repairing or replacing
the tire. (
Initializing the tire pressure
warning system
470
6-3. Do-it-yourself maintenance
2
Adjust the tire inflation pressure to
the specified cold tire inflation
pressure level.
Make sure to adjust the tire pressure to the
specified cold tire inflation pressure level.
The tire pressure warning system will oper-
ate based on this pressure level.
3
Turn the engine switch to ON.
Initialization cannot be performed while
the vehicle is moving.
4
Press
or
of the meter con-
trol switches on the steering wheel
and select
.
5
Press
or
of the meter con-
trol switches and select “Vehicle
Settings”, and then press
.
6
Press
or
of the meter con-
trol switches and select “TPWS set-
ting”, and then press
.
7
Press
or
of the meter con-
trol switches and select the “Set
Pressure”. Then press and hold
until the tire pressure warning light
blinks 3 times.
Then “Set Pressure Accepted” will be dis-
played on the multi-information display. “--
-” will be displayed on the multi-informa-
tion display for the inflation pressure of
each tire while initialization is being per-
formed.
8
Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.
When initialization is complete, the infla-
tion pressure of each tire will be displayed
on the multi-information display.
Even if the vehicle is not driven at approxi-
mately 25 mph (40 km/h) or more, initial-
ization can be completed by driving for a
long time. However, if initialization does
not complete after driving for 1 hour or
more, park the vehicle in a safe place for
approximately 20 minutes and then drive
the vehicle again.
■
When initializing
●
Initialization is performed while driving at
a vehicle speed of approximately 25 mph
(40 km/h) or more.
●
Make sure to carry out initialization after
adjusting the tire inflation pressure. Also,
make sure the tires are cold before carry-
ing out initialization or tire inflation pres-
sure adjustment.
●
The tire pressure warning system can be
initialized by yourself, but depending on
the driving conditions and driving envi-
ronment, initialization may take some
time to complete.
■
The initialization operation
●
If you have accidentally turned the engine
switch to OFF during initialization, it is not
necessary to restart the initialization
again as initialization will restart automat-
ically when the engine switch has been
turned to ON for the next time.
●
If you accidentally perform initialization
when initialization is not necessary, 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 pressures
are not being displayed on the multi-
information display, if the inflation pres-
sure of a tire drops, the tire pressure
warning light will come on.
471
6-3. Do-it-yourself maintenance
6
Maintenance and
care
■
If the tire pressure warning system is not
initialized properly
●
In the following situations, initialization
may take longer than usual to be com-
pleted or may not be possible. Normally,
initialization completes within approxi-
mately 30 minutes.
• Vehicle is not driven at approximately 25
mph (40 km/h) or more
• Vehicle is driven on unpaved roads
If initialization does not complete after driv-
ing for 1 hour or more, park the vehicle in a
safe place for approximately 20 minutes
and then drive the vehicle again.
●
If the vehicle is reversed during initializa-
tion, the data up to that point is reset, so
perform the initialization procedure
again from the beginning.
●
In the following situations, initialization
will not be started or was not completed
properly and the system will not operate
properly. Perform the initialization pro-
cedure again.
• If, when attempting to start initialization,
the tire pressure warning light does not
blink 3 times.
• If, when the vehicle has been driven for
about 20 minutes after performing initial-
ization, the tire pressure warning light
blinks for approximately 1 minute and
then illuminates.
●
If initialization cannot be completed after
performing the above procedure, con-
tact your Lexus dealer.
■
The ID codes must be registered in
the following circumstances:
When installing the new tire pres-
sure warning valve and transmitters
When installing already registered
tire pressure warning valve and
transmitters (such as replacing sum-
mer and winter tire, etc.)
Every tire pressure warning valve and
transmitter has a unique ID code. It is nec-
essary to register the ID code in the tire
pressure warning computer
■
How to register the ID codes
1
Park the vehicle in a safe place and
turn the engine switch off for 20
minutes or more.
2
Turn the engine switch to ON.
(
3
Press
or
of the meter con-
trol switches on the steering wheel
and select
.
4
Press
or
of the meter con-
trol switches and select “Vehicle
Settings”, and then press
.
5
Press
or
of the meter con-
trol switches and select “TPWS set-
ting”, and then press
.
6
Press
or
of the meter con-
trol switches and select “Change
Wheel Set”. Then press and hold
until the tire pressure warning
light starts slowly blinking 3 times.
Then “Identify Wheel Accepted” will be
displayed on the multi-information display.
WARNING
■
When initializing the tire pressure
warning system
Do not initialize tire inflation pressure
without first adjusting the tire inflation
pressure to the specified level. Other-
wise, 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 nor-
mal.
Registering ID codes
472
6-3. Do-it-yourself maintenance
When registration is being performed, the
tire pressure warning light will blink for
approximately 1 minute then illuminate and
“---” will be displayed for the inflation pres-
sure of each tire on the multi-information
display.
7
Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.
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 approxi-
mately 1 hour in certain situations, such as
when the vehicle is stopped for a long time
at traffic lights, etc.
8
Initialize the tire pressure warning
system. (
■
When registering ID codes
●
ID code registration is performed while
driving at a vehicle speed of approxi-
mately 25 mph (40 km/h) or more.
●
Before performing ID code registration,
make sure that no wheels with tire pres-
sure warning valve and transmitters
installed are near the vehicle.
●
Make sure to initialize the tire pressure
warning system after registering the ID
codes. If the system is initialized before
registering the ID codes, the initialized
values will be invalid.
●
As the tires will be warm when registra-
tion is completed, make sure to allow the
tires to cool before performing initializa-
tion.
●
ID codes can be registered by yourself,
but depending on the driving conditions
and driving environment, registration
may take some time to complete.
■
Canceling ID code registration
●
To cancel ID code registration after it has
been started, select “Change Wheel Set”
on the multi-information display and
press and hold
again.
●
If ID code registration has been can-
celed, the tire pressure warning light will
blink for approximately 1 minute when the
engine switch is turned to ON and then
illuminate. The tire pressure warning sys-
tem will be operational when the tire
pressure warning light turns off.
●
If the warning light does not turn off even
after several minutes have elapsed, ID
code registration may not have been
canceled correctly. To cancel registra-
tion, perform the ID code registration
start procedure again and then turn the
engine switch off before driving.
■
If ID codes are not registered properly
●
In the following situations, ID code regis-
tration may take longer than usual to be
completed or may not be possible. Nor-
mally, registration completes within
approximately 30 minutes.
If ID code registration is not complete
after driving for approximately 30 min-
utes, continue driving for a while.
• Vehicle is not parked for approximately
20 minutes or more before driving
• Vehicle is not driven at approximately 25
mph (40 km/h) or more
• Vehicle is driven on unpaved roads
• Vehicle is driven near other vehicles and
system cannot recognize tire pressure
warning valve and transmitters of your
vehicle over those of other vehicles
• Wheel with tire pressure warning valve
and transmitter installed is inside or near
the vehicle
If registration does not complete after driv-
ing for 1 hour or more, perform the ID code
registration procedure again from the
beginning.
473
6-3. Do-it-yourself maintenance
6
Maintenance and
care
●
If the vehicle is reversed during registra-
tion, the data up to that point is reset, so
perform the registration procedure again
from the beginning.
●
In the following situations, ID code regis-
tration will not be started or was not com-
pleted properly and the system will not
operate properly. Perform the ID code
registration procedure again.
• If, when attempting to start ID code regis-
tration, the tire pressure warning light
does not blink slowly 3 times.
• If, when the vehicle has been driven for
about 20 minutes after performing ID
code registration, the tire pressure warn-
ing light blinks for approximately 1 minute
and then illuminates.
If the ID codes cannot be registered even
when performing the above procedure,
contact your Lexus dealer.
Your vehicle is equipped with tire
pressure warning system with the func-
tion to have ID codes registered for a
second wheel set, for example a winter
set. You can register a second wheel
set by yourself or your Lexus dealer.
After registration of a second wheel
set, either of these two wheel sets can
be selected for usage with the tire
pressure warning system.
■
Operating conditions for the func-
tion
This function will perform the
change of wheel set only if a second
wheel set has been registered. If no
second wheel set has been regis-
tered, no change will be made when
selecting this function in the menu.
Only a change between both regis-
tered wheel set is possible, mixing
between these wheel sets is not sup-
ported.
■
How to change between wheel
sets
1
Park the vehicle in a safe place and
fit the vehicle with your preferred
wheel set.
2
Press
or
of the meter con-
trol switches on the steering wheel
and select
.
3
Press
or
of the meter con-
trol switches and select “Vehicle
Settings”, and then press
.
4
Press
or
of the meter con-
trol switches and select “TPWS set-
ting”, and then press
.
5
Press
or
of the meter con-
trol switches and select “Change
Wheel Set”. Then press and hold
until the tire pressure warning
light starts slowly blinking 3 times.
Afterward, the tire pressure warning light
turns on after flashing for 1 minute.
After 2 minutes, changing the ID codes of
a second wheel set is being performed.
The tire pressure warning light will turn off.
6
Initialize the tire pressure warning
system. (
Selecting wheel set
474
6-3. Do-it-yourself maintenance
If the tire inflation pressure settings for the
installed tires change, initialization opera-
tions are required, but if the tire inflation
pressure settings are the same, initializa-
tion is not required.
7
Drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.
Changing a second wheel set is complete
when the tire pressure warning light turns
off and the inflation pressure of each tire is
displayed on the multi-information display.
The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
(
Tire valve
Tire inflation pressure
Checking the specified tire infla-
tion pressure
Inspection and adjustment pro-
cedure
A
475
6-3. Do-it-yourself maintenance
6
Maintenance and
care
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.
5
After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.
6
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 pres-
sure
Driving with incorrect tire inflation pressure
may result in the following:
●
Reduced fuel economy
●
Reduced driving comfort and poor han-
dling
●
Reduced tire life due to wear
●
Reduced safety
●
Damage to the drive train
If a tire needs frequent refilling, have it
checked by your Lexus 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 read-
ing.
●
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 gener-
ated in the tire. Do not reduce tire infla-
tion pressure after driving.
●
Never exceed the vehicle capacity
weight. Passengers and luggage weight
should be placed so that the vehicle is
balanced.
B
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 dam-
age
●
Greater possibility of tire damage
while driving (due to road hazards,
expansion joints, sharp edges in the
road, etc.)
476
6-3. Do-it-yourself maintenance
When replacing wheels, care should
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, 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
■
When replacing wheels
The wheels of your vehicle are equipped
with tire pressure warning valves and trans-
mitters 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 pres-
sure warning valves and transmitters must
be installed. (
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 mois-
ture may get into the valve and cause an
air leak, resulting in decreased tire infla-
tion pressure.
Wheels
If a wheel is bent, cracked or heav-
ily corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.
Wheel selection
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.
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