maintenance LEXUS RX400H 2008 Manual Online

370
4-3. Do-it-yourself maintenance
RX400h_URemove the light bulb.
■ Rear turn signal lights
Remove the access hole cover.
Use a flathead screwdriver which is
wrapped with a cloth.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP3
STEP1
STEP2
STEP3

371
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U■
Back-up lights
Open the back door and remove
the luggage compartment light
unit.
Pull out the connector.
Remove the upper trim board.
Remove the lower trim board.
STEP1
STEP2
STEP3
STEP4

372
4-3. Do-it-yourself maintenance
RX400h_UTurn the bulb base counterclock-
wise.
Remove the light bulb.
■ License plate lights
Open the back door and remove
the luggage compartment light
unit.
Pull out the connector.
STEP5
STEP6
STEP1
STEP2

373
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_URemove the upper trim board.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
replace it.
●Headlight low beams (discharge bulbs)
● Fog lights
● Stop lights
● Tail lights
● High mounted stoplight
STEP3
STEP4
STEP5

374
4-3. Do-it-yourself maintenance
RX400h_U
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more information in the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
malfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up inside the headlight.
■Discharge headlights
If voltage to the discharge bulbs is insufficient, the bulbs may not come on, or may
go out temporarily. The discharge bulbs will come on when normal power is
restored.
■LED stop lights
The stop lights, tail lights and high mounted stoplight consist of a number of LEDs. If
any of the LEDs burn out, take your vehicle to your Lexus dealer to have the light
replaced.
If two or more LEDs in a stop light burn out, your vehicle may not conform to local
laws (SAE).

375
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately after turn-
ing off the headlights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. Hold the bulb by
the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them.
Failing to do so may result in heat damage, fire, or water entering the headlight
unit. This may damage the headlights or cause condensation to build up on the
lens.
●Do not attempt to take apart or repair the low beam discharge headlight bulbs,
connectors, power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.
■Discharge headlights
●Contact your Lexus dealer before replacing discharge headlights (including light
bulbs).
●Do not touch the high-intensity discharge headlight’s high voltage socket when
the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result in
serious injury or death by electric shock.
■To prevent damage or fire
Make sure bulbs are fully seated and locked.

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4-3. Do-it-yourself maintenance
RX400h_U

396
5-2. Steps to take in an emergency
RX400h_U
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure recommended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when the system is not operating properly. The
TPMS (tire pressure warning system) malfunction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists. When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of rea-
sons, including the installation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pressure warning system) from functioning
properly. Always check the TPMS (tire pressure warning system) malfunction tell-
tale after replacing one or more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.

404
5-2. Steps to take in an emergency
RX400h_U
Wa r n i n g m e s s a g eDetailsCorrection procedure
(U.S.A. only)
Indicates that the engine
oil is scheduled to be
changed.
Check the engine oil, and
change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil mainte-
nance data has been
reset.)
(U.S.A. only)
Indicates that the engine
oil should be changed.
Check and change the
engine oil.
Comes on approximately
5000 miles (8000 km)
after the engine oil is
changed (and the oil
maintenance data has
been reset).

Vehicle specifications6
429
RX400h_U
6-1. Specifications................. 430Maintenance data (fuel, oil level, etc.) .............. 430
Fuel information ..................... 442
Tire section names................. 445
6-2. Customization................ 458 Customizable features ........ 458
6-3. Initialization ................... 462 Items to initialize .................... 462