headlights LEXUS RX400H 2008 User Guide

307
4-2. Maintenance
4
Maintenance and care
RX400h_U
Vehicle interior
ItemsCheck points
Accelerator pedal• Moves smoothly (without uneven pedal effort or catching)?
Transmission “Park” mechanism
• Can the vehicle be hold securely on an incline with the shift lever in
P?
Brake pedal
• Moves smoothly?
• Does it have appropriate clearance and correct amount of free play?
Brakes
• Not pull to one side when applied?
• Loss of brake effectiveness?
• Spongy feeling brake pedal?
• Pedal almost touches floor?
Head restraints• Move smoothly and lock securely?
Indicators/buzzers•Function properly?
Lights
• Do all the lights come on?
• Headlights aimed correctly? (→ P. 364)
Pa r k i n g b r a ke
• Moves smoothly?
• Can hold the vehicle securely on
an incline?
Seat belts
• Does the seat belt system operate smoothly?
• Are the belts undamaged?
Seats• Do the seat controls operate prop- erly?

364
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

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.

418
5-2. Steps to take in an emergency
RX400h_U
If the hybrid system will not start
If the hybrid system will not start, even though correct starting procedures
are being followed (
→P. 131), consider each of the following points.
■The hybrid system will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Refuel your vehicle.
● The hybrid system may be flooded.
Try to restart the hybrid system once more following correct
starting procedures. ( →P. 131)
● There may be a malfunction in the hybrid vehicle immobilizer sys-
tem. (→ P. 8 3 )
■ The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
One of the following may be the cause of the problem.
● The 12-volt battery may be discharged. ( →P. 4 2 1 )
● The 12-volt battery terminal connections may be loose or cor-
roded.
■ The interior lights and headlights do not turn on, or the horn does
not sound.
One of the following may be the cause of the problem.
● One or both of the 12-volt battery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( →P. 4 2 1 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

422
5-2. Steps to take in an emergency
RX400h_U
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the hybrid system is turned off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■After recharging the 12-volt battery
(→ P. 3 2 8 )
■When the battery is removed or discharged
The power windows, power back door and moon roof must be initialized.
(→ P. 4 6 2 )
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any part other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
Once the vehicle’s hybrid system has started, remove the
jumper cables in the exact reverse order in which they were
connected.
Once the hybrid system starts, have the vehicle checked at your Lexus
dealer as soon as possible.STEP5

441
6-1. Specifications
6
Vehicle specifications
RX400h_U
Light bulbs
A: D2S discharge bulbs
B: H11 halogen bulbs
C: Wedge base bulbs (amber)
D: HB3 halogen bulbs
E: Wedge base bulbs (clear)
F: Double end bulbs
G: Single end bulbs
Light BulbsBulb No.WTy p e
Exterior
Headlights (low beam)Discharge bulbs
Halogen bulbs

35
55A
B
Front turn signal lights21C
Headlights (high beam)900560D
Parking lights1685E
Fog lights900655B
Front side marker lights1685E
Rear turn signal lights21C
Licence plate lights1685E
Back-up lights92116E
Rear side marker lights1943.8E
Interior
Vanity lights2.8G
Pe r s o n a l l i g h t s8G
Interior lights8F
Luggage compartment lights5F
Door courtesy lights5G

460
6-2. Customization
RX400h_U
ItemFunctionDefault settingCustomizedsetting
Door lock
(
→P. 3 9 )
Unlocking using a key
Driver's door
unlocked in
one step, all
doors
unlocked in
two steps
All doors
unlocked in one step
Speed-detecting auto-
matic door lock functionOFFON
Opening driver's door
unlocks all doorsOFFON
Shifting gears to P
unlocks all doorsONOFF
Shifting gears to position
other than P locks all
doors
ONOFF
Pow e r
windows
(
→P. 7 2 )
Linked door lock/unlock
operationONOFF
Wireless remote control
linked operationON
(open only)OFF
Moon roof
(
→P. 7 5 )
Linked door lock/unlock
operationONOFF
Wireless remote control
linked operationON
(open only)OFF
Automatic
light control
system
(
→P. 1 4 8 )
Light sensor sensitivityLevel 3Level 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 second
60 seconds
90 seconds

475
Alphabetical index
RX400h_U
Preparing and checking before winter ...................................... 182
Engine oil maintenance data ............. 321
Engine switch............................................ 131
Engine switch light ............................... 260
EPS............................................................... 169
Event data recorder............................ 386
Floor mat.................................................. 283
Fluid Brake ....................................................... 325
Washer ................................................... 329
Fog lights Replacing light bulbs ....................... 365
Switch ..........................................................151
Wattage ................................................... 441
Foot well lighting .................................. 260
Front fog lights Replacing light bulbs ....................... 365
Switch ..........................................................151
Wattage ................................................... 441
Front passenger's seat belt
reminder light ....................................... 391
Front seats
Adjustment ...............................................49
Driving position memory ................. 55
Flattening seatbacks ........................... 50
Front side marker light
Replacing light bulbs ....................... 365
Wattage ................................................... 441
Front turn signal lights Replacing light bulbs ....................... 365
Wattage ................................................... 441 Fuel
Capacity .................................................433
Fuel gauge.............................................. 138
Gas station information ................. 484
Information ............................................ 442
Refueling.................................................... 78
Type .......................................................... 442
Fuel door ..................................................... 78
Fuel filler door ........................................... 78
Fuses ..........................................................352
Garage door opener .......................... 287
Gas station information......................484
Gauges ...................................................... 138
Glove box ................................................ 265
Glove box light ...................................... 266
Head restraints
Adjusting .................................................. 57
Headlight aim ......................................... 364
Headlight cleaner .................................. 156
Headlights
Discharge headlights precautions........................................375
Replacing light bulbs ....................... 365
Switch........................................................ 148
Wattage ....................................................441
Heaters
Seat heaters ......................................... 280
Side mirror.............................................204
Hood ........................................................... 313
Hooks Cargo hook ..........................................284
Shopping bag hook..........................284
F
G
H

476
Alphabetical index
RX400h_U
Hybrid systemEnergy monitor...................................... 28
High voltage cautions .........................27
High voltage components ................27
Operating condition ........................... 28
Road accident cautions......................32
Starting procedure................................131
Hybrid vehicle immobilizer
system........................................................83
I/M test ..................................................... 309
Identification Engine ....................................................... 431
Vehicle ...................................................... 431
Ignition Keys ............................................................. 34
Ignition switch............................................131
Illuminated entry system ..................... 261
Indicator lights......................................... 140
Initialization Items to initialize ................................. 462
Inside door handle lights ....................260
Inside rear view mirror .......................... 67
Interior lights
Interior lights.........................................260
Switch ...................................................... 263
Wattage.................................................... 441
Jack Positioning a floor jack...................... 314
Replacing the wheel........................ 408
Jack handle ............................................. 408 Keyless entry ............................................. 36
Keys
Engine switch .......................................... 131
Flat key............................................. 34, 133
If you lose your keys ........................ 420
Ignition switch ......................................... 131
Key number.............................................. 34
Keyless entry............................................36
Keys.............................................................. 34
Wireless remote control key...........36
Laser cruise control.............................. 160
Licence plate lights Replacing light bulbs ....................... 365
Wattage ................................................... 441
Light bulbs
Replacing .............................................. 365
Wattage ................................................... 441
Lights Door courtesy lights ........................ 260
Engine switch light............................ 260
Fog light switch ...................................... 151
Headlights switch................................ 148
Inside door handle lights ............... 260
Interior light switch ............................263
Luggage compartment light ...........46
Meter ring light ................................... 260
Overhead courtesy light ............... 260
Personal light switch .........................264
Replacing light bulbs ....................... 365
Scuff lighting......................................... 260
Turn signal lever................................... 136
Vanity lights........................................... 273
Wattage ................................................... 441
Load capacity............................................ 181
Lock steering column ...........................132
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J
K
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