lights LEXUS RX400H 2008 Workshop Manual

362
4-3. Do-it-yourself maintenance
RX400h_U
77RADIO NO.27. 5
Instrument cluster lights, instrument
panel lights, navigation system, audio
system
78MIR HTR10Outside rear view mirror defogger
79PWR30
Power window, multiplex communica-
tion system (power door lock system,
wireless remote control system), out-
side rear view mirror
80P/ S E AT30Po w e r s e a t s
■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. 3 6 5 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
RX400h_U
Headlight aim (vehicles with discharge headlights)
■Vertical movement adjusting screw and bolt
Adjustment screw
Adjustment bolt
■ Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
■ Adjusting the headlight aim
Turn the screw in either direc-
tion using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns in mind.
Turn the bolt the same number
of turns and in the same direc-
tion as step 1 using a Phillips-
head screwdriver.
If the error is over the value
specified above, take the vehicle
to your Lexus dealer to adjust
the headlight aim.
STEP1
STEP2
STEP3
STEP4
STEP1
STEP2

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4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U■
Headlight low beam (halogen bulb)
Turn the cover counterclockwise.
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
■ Front turn si gnal lights
Turn the bulb base counterclock-
wise.
STEP1
STEP2
STEP3
STEP1

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4-3. Do-it-yourself maintenance
RX400h_URemove the light bulb.
■ Front side marker lights
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ Parking lights
Turn the bulb base counterclock-
wise.
STEP2
STEP1
STEP2
STEP1

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4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_URemove the light bulb.
■ Rear side marker lights
Right-hand side only:
Remove the bolts using a Phillips-
head screwdriver and remove the
clips.
Removing clip
Installing clip
Turn the bulb base counterclock-
wise.
STEP2
STEP1
STEP2

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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

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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

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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

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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

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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).