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7
Maintenance and care
■The initialization operation
●Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carryi ng out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the engine swit ch 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 IG NITION 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 leve l 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 pres sure warning reset switch, the tire pressure warning light
does not blink 3 times.
●After carrying out the initializat ion procedure, the tire pressure warning light blinks for 1
minute then stays on after driving for 20 minutes.
■Tire pressure warning system certification
Transmitter:
For vehicles sold in the U.S.A., Hawaii, Guam, Saipan, American Samoa, NATO
Germany and Puerto Rico
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ES350_OM_OM06134U_(U)7-3. Do-it-yourself maintenance
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 han-
dling characteristics, which may lead to an accident resulting in death or serious injury.
●Make sure to install four tire s that are of the specified size, and that all four tires are of
the same size, same brand, and same tread pattern.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
●If only two tires are replaced, the new tires sh ould be placed on the rear of the vehicle.
●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 spec ified level. Otherwise, the tire pressure warning light may
not come on even if the tire inflation pressu re 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 ot her than implantable cardiac pacemakers,
cardiac resynchronization th erapy-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 implantabl e cardiac pacemakers,
cardiac resynchronization therapy-pacemak-
ers or implantable cardioverter defibrillators
should not come within 17.7 in. (450 mm) of
the tire pressure warn ing system initiators.
The radio waves may affect the operation of
such devices.
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ES350_OM_OM06134U_(U)7-3. Do-it-yourself maintenance
Check if the fuse is blown.
Normal fuse
Blown fuse
Type A and B:
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Type C:
Contact your Lexus dealer.
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. ( →P. 462)
●If the replaced fuse blows again, have th e vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this vehicle.
Because certain bulbs are connected to circui ts designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
4
1
2
Type AType B
Type C
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ES350_OM_OM06134U_(U)7-3. Do-it-yourself maintenance
Light bulbs
Check the wattage of the light bulb to be replaced. (
→P. 524)
→ P. 430
■Front
Front side marker light
Headlight high beam (halogen bulb)
Front turn signal light
You may replace the following bulbs by yo urself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Removing the engine compartment cover
Bulb locations
1
2
3
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7
Maintenance and care
■Rear
Back-up lightRear turn signal light12
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ES350_OM_OM06134U_(U)7-3. Do-it-yourself maintenance
■Headlight high beam (halogen bulb)
Turn the cover counterclockwise
and remove it.
Unplug the connector while pull-
ing the lock release.
Turn the bulb base counterclock-
wise.
Set the new light bulb.
Align the 3 tabs on the light bulb with
the mounting, and insert.
Turn it clockwise to set.
Replacing light bulbs
1
2
3
4
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4657-3. Do-it-yourself maintenance
7
Maintenance and care
Set the connector.
Shake the bulb base gently to check
that it is not loose, turn the headlight
high beams on once and visually
confirm that no light is leaking
through the mounting.
Install the cover and turn it clock-
wise.
Align the ▲ of the cover to the posi-
tioning mark of the lamp body and
insert and turn it.
■Front turn signal lights
To allow enough working space,
turn the steering wheel to the
opposite side of the bulb to be
replaced.
Remove the 3 fender liner clips
and 1 screw.
5
6
1
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ES350_OM_OM06134U_(U)7-3. Do-it-yourself maintenance
While holding the clamp open,
pull and remove the tabs and
open the fender liner.
Turn the bulb base counterclock-
wise.
Remove the light bulb.2
3
4