engine LEXUS RX400H 2008 Workshop Manual

261
3-4. Using the interior lights
3
Interior features
RX400h_U
■Illuminated entry system
The following lights turn on when any of the doors are unlocked or opened. (The
lights remain on for approximately 15 seconds when the doors are unlocked, but
the lights turn off immediately if the doors are locked.)
●Footwell lightings
●Engine switch light
●Front interior light (interior light switch is in the DOOR position)
●Rear interior light (interior light switch is in the DOOR position)
●Inside door handle lights
●Scuff lightings
The following lights turn on for approximately 15 seconds when the engine switch is
turned to the LOCK position from the ON or ACC position. (The lights turn off
immediately if the engine switch is turned to the ACC or ON position.)
●Engine switch light
●Front interior light (interior light switch is in the DOOR position)
●Rear interior light (interior light switch is in the DOOR position)
●Scuff lightings
The following lights turn on when the engine switch is in the ON position. (The lights
dim when the shift lever is moved out of the P position. The lights remain on for
approximately 15 seconds after turning the engine switch to the LOCK position
from the ON or ACC position.)
●Inside door handle lights
●Footwell lightings
The front overhead courtesy light turns on when the engine switch is in the ACC or
ON position.

262
3-4. Using the interior lights
RX400h_U
■To prevent the 12-volt battery from being discharged
If the following lights remain ON when the door is not fully closed and the interior
light switch is in the DOOR position, the lights will go off automatically after 20
minutes.
●Engine switch light
●Front interior light
●Rear interior light
●Inside door handle lights
●Scuff lightings
●Footwell lightings
■Customization that can be configured at Lexus dealer
Setting (e.g. The time elapsed before lights turn off) can be changed. (Customiz-
able features
→P. 4 5 8 )

274
3-6. Other interior features
RX400h_U
Clock
■The clock is displayed when
The engine switch is in the ACC or ON position.
With navigation system
Owners of models equipped with a navigation system should refer to
the “Navigation System Owner's Manual”.
Without navigation system Adjusts the hour.
Adjusts the minutes.
Rounds to the nearest hour.
*
*: e.g. 1:00 to 1:29 → 1:00
1:30 to 1:59 → 2:00

278
3-6. Other interior features
RX400h_U
■The power outlet can be used when12 V
The engine switch is in the ACC or ON position.
115 VAC
The engine switch is in the ON position.
NOTICE
■To avoid damaging the power outlet
Close the power outlet lid when the power outlet is not in use.
Foreign objects or liquids that enter the power outlet may cause a short circuit.
■To prevent the fuse from being blown
12 V
Do not use an accessory that uses more than 12 V 10 A.
115 VAC
Do not use a 115 VAC appliance that requires more than 100 W.
If a 115 VAC appliance that consumes more than 100 W is used, the protection
circuit will cut the power supply.
Luggage compartment
(115 VAC*)
Main switch
To use the power outlet, turn
on the main switch.
Power outlet socket
*: If equipped

280
3-6. Other interior features
RX400h_U
Seat heaters (if equipped)
■The seat heaters can be used when
The engine switch is in the ON position.
■When not in use
Turn the knob counterclockwise. The indicator light turns off.
Press the knob into the recessed position.
CAUTION
■Burns
●Use caution when seating the following persons in a seat with the seat heater on
to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs,cold remedies, etc.)
●Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature of the
seat and may lead to overheating.
Pops the switch out
ON
The indicator light comes on.
Adjusts the seat temperature
The further you turn the knob
clockwise, the warmer the seat
becomes.
Driver’s
seat Front
passenger’s
seat

Maintenance and care4
297
RX400h_U
4-1. Maintenance and care ............................... 298
Cleaning and protecting the vehicle exterior............ 298
Cleaning and protecting the vehicle interior ............... 301
4-2. Maintenance .................. 304 Maintenance requirements ....................... 304
General maintenance .......... 306
Emission inspection and maintenance (I/M)
programs............................... 309 4-3. Do-it-yourself
maintenance ................. 310
Do-it-yourself service precautions ............................ 310
Hood ........................................... 313
Positioning a floor jack .......... 314
Engine compartment ............ 316
Tires............................................. 331
Tire inflation pressure........... 340
Wheels ...................................... 344
Air conditioning filter ........... 346
Wireless remote control battery .................................... 348
Rear seat entertainment system controller ................ 350
Checking and replacing fuses ........................................ 352
Headlight aim (vehicles with discharge
headlights) ............................ 364
Light bulbs................................ 365

300
4-1. Maintenance and care
RX400h_U
NOTICE
■To protect your vehicle’s painted surfaces
Do not use organic cleaners such as benzene or gasoline.
■To protect your vehicle’s
Do not splash water on the electric components in the engine compartment. This
may cause malfunction of the electric components.
■If the windshield washer nozzle become blocked
Contact your Lexus dealer. Do not try to clear it with a pin or other object.
This may damage the nozzle.
■Cleaning the exterior lights
●Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax on the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash (vehicles with the rain-sensing windshield
wipers)
■To prevent damage to the windshield wiper arms
When lifting the wiper arms away from the windshield, pull the driver side wiper
arm upward first, and repeat for the passenger side. When returning the wipers to
their original position, do so from the passenger side first.
Set the wiper switch to the off position.
If the wiper switch is in AUTO, the wipers may
operate and the wiper blades may be dam-
aged.
Off

305
4-2. Maintenance
4
Maintenance and care
RX400h_U
■Allow inspection and repairs to be performed by a Lexus dealer
●Lexus technicians are well-trained specialists and are kept up to date with the lat-
est service information. They are well informed about the operations of all sys-
tems on your vehicle.
●Keep a copy of the repair order. It proves that the maintenance that has been per-
formed is under warranty coverage. If any problem should arise while your vehi-
cle is under warranty, your Lexus dealer will promptly take care of it.
CAUTION
■Warning in handling of battery
●Engine exhaust, some of its constituents, and a wide variety of automobile com-
ponents contain or emit chemicals known to the State of California to cause can-
cer and birth defects and other reproductive harm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by compo-
nent wear contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Avoid exposure and wash
any affected area immediately.
●Battery posts, terminals and related accessories contain lead and lead com-
pounds which are known to cause brain damage. Wash your hands after han-
dling. (→P. 3 2 7 )

306
4-2. Maintenance
RX400h_U
General maintenance
Engine compartment
ItemsCheck points
12-volt batteryMaintenance-free. (→P. 3 2 7 )
Brake fluidAt the correct level? ( →P. 3 2 5 )
Engine/power control unit coolantAt the correct level? ( →P. 3 2 3 )
Engine oilAt the correct level? ( →P. 3 1 8 )
Exhaust systemNo fumes or strange sounds?
Radiator/condenser/hosesNot blocked with foreign matter?
(→ P. 3 2 5 )
Wa s h e r f l u i dAt the correct level? ( →P. 3 2 9 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide” or
“Owner’s Manual Supplement”. It is recommended that any problem you
notice should be brought to the attent ion of your Lexus dealer or qualified
service shop for advice.

308
4-2. Maintenance
RX400h_U
Vehicle exterior
ItemsCheck points
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-aged?
• Tires rotated according to the maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the hybrid system is running
Turn the hybrid system off and ensure that there is adequate ventilation before per-
forming maintenance checks.