5237-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
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 Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
*: 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 1600 km (1000 miles).
●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 sy stem 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. ( P. 510)
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
5578-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
*1: Parking brake engaged warning buzzer: P. 564
*2: Open door warning buzzer:
P. 562
Warning lightWarning light/Details/Actions
Open door warning light (warning buzzer)*2
Indicates that a door or the trunk is not fully closed
Check that all the doors and the trunk are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 10 L (2.6 gal., 2.2 Imp.
gal.) or less
Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warning
buzzer)
*3
Warns the driver and/or front passe nger to fasten their seat belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning buzzer)*3
Warns the rear passengers to fasten their seat belts
Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warnin g system has detected a malfunc-
tion.
P. 560
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 558)
• Flat tire ( P. 586, 601)
Adjust the tire inflation pres sure to the specified level.
The light will turn off after a few minutes. In case the light does
not turn off even if the tire inflation pressure is adjusted, have the
system checked by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
When the light comes on af ter blinking for 1 minute:
Malfunction in the tire pressure warning system
Have the system checked by an y authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
5588-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
*3: Seat belt warning buzzer:The seat belt warning buzzer sounds to al ert the driver, front passenger and rear pas-
sengers that his or her seat belt is not fastened. The buzzer sounds for 30 seconds
after the vehicle reaches a speed of 20 km/h (12 mph). Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 90 more seconds.
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-
ing light may not operate properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely empty.
If the fuel tank is empty, refuel the vehicle immediately. The malfunction indicator lamp
will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer as soon as possible.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficien t or the voltage temporarily drops, the
electric power steering system warning lig ht may come on and the warning buzzer may
sound.
■When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even afte r several minutes, check that the tire infla-
tion pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted without first
allowing the tire temperature to lower sufficiently.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caused by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with the spare tire (if equipped)
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
P. 513
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mode, have it checked by any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
5598-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
WARNING
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer. The vehicle will become
extremely unstable during braking, and the ABS system may fail, which could cause an
accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
When steering wheel operations are heavier than usual, grip the steering wheel firmly
and operate it using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
Vehicles with a compact spare tire
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest authorized Lexus
retailer or Lexus authorized repa irer, or any reliable repairer.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
Vehicles with an emergency tire puncture repair kit
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, repair the
flat tire by using emergency tire puncture repair kit.
●Avoid abrupt maneuvering and braking. If th e vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warning
system may not operate properly.
5938-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
Connect the bottle to the compres-
sor.
As shown in the illustration, insert the
bottle vertically into the compressor to
connect making sure that the claw on
the bottle's neck is hooked onto the cut-
out of the compressor case.
Check the specified tire inflation pressure.
Tire inflation pressure is specified on the label as shown. (P. 638)
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Left-hand drive vehiclesRight-hand drive vehicles
5948-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Start the engine.
To inject the sealant and inflate the
tire, turn the compressor switch on.
Inflate the tire until the specified air
pressure is reached.The sealant will be injected and
the pressure will surge and then
gradually decrease.
The air pressure gauge will dis-
play the actual tire inflation pres-
sure about 1 minute (5 minutes at
low temperature) after the switch
is turned on.
Inflate the tire until the specified
air pressure.• Turn the compressor switch off
and then check the tire infla-
tion pressure. Being careful
not to over inflate, check and
repeat the inflation procedure
until the specified tire inflation
pressure is reached.
• If the tire inflation pressure is still lower than the specified point after inflation for 35 minutes with the switch on, the tire is too damaged to be
repaired. Turn the compressor switch off and contact any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
• If the tire inflation pressure exceeds the specified air pressure, let out some air to adjust the tire inflation pressure. ( P. 598, 638)12
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5968-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
Turn the compressor switch on and
wait for an approximately 5 seconds,
and then turn it off. Check the tire
inflation pressure.If the tire inflation pressure is
under 130 kPa (1.3 kgf/cm
2 or
bar, 19 psi): The puncture cannot
be repaired. Contact any autho-
rized Lexus retailer or Lexus
authorized repairer, or any reli-
able repairer.
If the tire inflation pressure is 130 kPa (1.3 kgf/cm
2 or bar, 19 psi) or higher,
but less than the specified air pressure: Proceed to .
If the tire inflation pressure is the specified air pressure ( P. 638): Pro-
ceed to .
Turn the compressor switch on to inflate the tire until the specified air pressure
is reached. Drive for about 5 km (3 miles) and then perform .
Attach the air release cap to the end
of the hose.
If the air release cap is not attached, the
sealant may leak and the vehicle may
get dirty.
Store the bottle in the luggage compartment while it is connected to the com-
pressor.
Taking precautions to avoid sudden br aking, sudden acceleration and sharp
turns, drive carefully at under 80 km/h (50 mph) to the nearest authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer for tire
repair or replacement.
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5978-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D77E)
■Emergency tire puncture repair kit
●The sealant has a limited lifespan. The expiry date is marked on the bottle. The sealant
should be replaced before the expiry date. Contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer for replacement.
●The sealant stored in the emergency tire puncture repair kit can be used only once to
temporarily repair a single tire. If the sealant in the bottle and other parts of the kit have
been used and need to be purchased, contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
●The sealant can be used when the outside temperature is from -30C (-22 F) to 60 C
(140 F).
●The kit is exclusively designed for size and type of tires originally installed on your vehi-
cle. Do not use it for tires that a different size than the original ones, or for any other
purposes.
●If the sealant gets on your clothes, it may stain.
●If the sealant adheres to a wheel or the surface of the vehicle body, the stain may not be
removable if it is not cleaned at once. Immediately wipe away the sealant with a wet
cloth.
●During operation of the kit, a loud operatio n noise is produced. This does not indicate a
malfunction.
■After a tire is repaired with the emergency tire puncture repair kit
●The tire pressure warning valve an d transmitter should be replaced.
●Even if the tire inflation pressure is at th e recommended level, the tire pressure warning
light may come on/flash.
■Note for checking the emergency tire puncture repair kit
Check the sealant expiry date occasionally.
The expiry date is shown on the bottle. Do not use sealant whose expiry date has already
passed. Otherwise, repairs conducted using th e emergency tire puncture repair kit may
not be performed properly.