washer fluid Lexus GS450h 2007 Scheduled Maintenance Guide / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

125
2-3. Operating the lights and windshield wipers
2
When driving
■Rain drop sensor
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
■In extremely hot or cold weather
The system will turn off if the windshield gets extremely hot (at more than 176 F
[80 C]) or cold (at less than 14 F [-10C]).
■Customization
Settings (e.g. drip prevention function) can be changed. ( P. 500)
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpectedly if the sensor is touched or the
windshield is subject to vibration in “AUT O” mode. Take care that your fingers or
anything else do not become caught in the windshield wipers.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you
and held continually.
The sensor judges the amount of raindrops.

126
2-3. Operating the lights and windshield wipers
Headlight cleaner switch
■The headlight cleaner can be operated when
When the power switch is in “IG-ON” mode and the headlight switch is turned
ON.
NOTICE
■When the washer fluid tank is empty
Do not use this function when the washer fluid tank is empty. This may cause the
washer fluid pump to overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.

174
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that ar
e appropriate to the prevailing outside tempera -
tures.
• Engine oil
• Engine/inverter coolant
• Washer fluid
● Ha
ve a service technician inspect th e level and specific gravity of
battery electrolyte.
● Ha
ve the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same si ze and brand, and that chains match
the size of the tires.
● Tire inflation pressure falls in winter as the outside temperature
falls. Add 2.8 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar)
to the standard tire inflation pressure.

356
4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury.
■When working on the engine compartment:
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, inverter, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily , such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
ItemsPa r t s a n d t o o l s
Engine oil level ( P. 3 6 3 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used only for adding engine oil)
Fuses ( P. 3 9 5 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 1 1 )• Phillips-head screwdriver
Radiator and condenser (P. 3 6 9 )
Tire inflation pressure ( P. 3 8 5 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 3 74 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

361
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compartment
■12 volt battery
P. 3 7 1
Engine oil level dipstick 
( P. 363)
Engine oil filler cap 
( P. 364)
Brake fluid reservoir (P. 370)
Fuse box ( P. 395)Washer fluid tank 
( P. 3 74 )
Gasoline engine/inverter 
coolant reservoir ( P. 368)
Electric cooling fans
Condenser ( P. 369)
Radiator ( P. 369)

374
4-3. Do-it-yourself maintenance
Washer fluid
If any washer does not work or the
warning message appears on the
multi-information display, the
washer tank may be empty. Add
washer fluid.
NOTICE
■When recharging the 12 volt battery
Never recharge the battery while the hybrid system is on. Also, be sure all accesso-
ries are turned off.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
■Diluting washer fluid
Dilute washer fluid with water as necessary. 
Refer to the freezing temperatures listed on the washer fluid tank.

444
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
The trunk is not fully
closed. flashes and a
buzzer sounds to indi-
cate that trunk is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the trunk.
(Flashing)
The moon roof is not fully
closed (with the power
switch “OFF” and the
driver’s door opened).
Close the moon roof.
(Flashing)
The parking brake is still
engaged (with the vehicle
having reached a speed
of more than 3 mph [5
km/h]).
Release the parking
brake.
The washer fluid level is
low.Add washer fluid.
The hybrid system has
overheated.Stop and check. 
(  P. 4 7 5 )

512
Alphabetical index
Emergency, in case ofIf a warning light turns on .............. 430
If a warning message is 
displayed ............................................ 436
If the hybrid system will not 
start........................................................ 466
If the shift lever cannot be 
shifted from P ................................... 467
If the 12 volt battery is 
discharged ......................................... 471
If you have a flat tire ............ 455, 456
If you lose your keys......................... 468
If you think something is 
wrong ....................................................427
If your vehicle becomes stuck..... 478
If your vehicle needs to be 
towed ................................................... 420
If your vehicle overheats ................ 475
When the electronic key battery 
is discharged .................................... 469
Energy monitor............................................ 6
Engine Compartment ....................................... 361
Hood........................................................ 358
How to start the hybrid system
.....101
If the hybrid system will not 
start........................................................ 466
Overheating......................................... 475
Power switch .......................................... 101
Engine compartment cover ............. 362
Engine coolant temperature 
gauge.........................................................110
Engine/inverter coolant Capacity ................................................. 484
Checking ............................................... 368
Preparing and checking 
before winter ...................................... 174 Engine oil
Capacity ................................................ 483
Checking............................................... 363
Preparing and checking  before winter...................................... 174
Engine oil maintenance data ........... 366
EPS (Electric Power Steering) ......... 162
Event data recorder ............................ 428
First-aid kit storage belt ..................... 332
Floor mats .................................................. 331
Fluid Brake ....................................................... 370
Washer.................................................... 374
Fog lights Switch ........................................................ 123
Wattage ................................................. 488
Foot light .................................................. 308
Front passenger's seat
belt 
reminder light ..................................... 433
Front seats Adjustment ............................................... 34
Driving position memory .................. 36
Front turn signal lights Wattage ................................................. 488
Fuel Capacity ................................................ 482
Fuel gauge ................................................ 110
Gas station information ................. 520
Information ........................................... 489
Refueling ................................................... 58
Messages .............................................. 450
Fuel filler door ........................................... 58
Fuses .......................................................... 395
F

517
Alphabetical index
Electric power steering warning light ..................................... 432
Low fuel level....................................... 432
Malfunction indicator lamp ............ 431
Master warning light ........................ 433
Open door ........................................... 432
Pre-collision system ......................... 432
Seat belt reminder light .................. 433
SRS airbags ............................................ 431
Tire pressure warning light........... 433
Warning messages Anti-lock Brake System (ABS) ... 442
Brake Assist (BA) .............................. 442
Dynamic radar 
cruise control ................................... 440
Engine oil level .................................... 445
Engine oil maintenance.................. 445
Engine oil pressure............................ 437
Headlight ............................................... 438
Hill-start assist control...................... 442
Hood ....................................................... 443
Hybrid system .......................... 437, 447
Intuitive parking 
assist .............................. 439, 446, 451
Moon roof ............................................. 444
Open door ........................................... 443
Parking brake ...................................... 444
Pre-Collision System .......... 439, 446
Refueling ................................................ 450
Rear lights system ............................. 438
Smart access system with 
push-button start............................ 452
Steering lock ............................ 439, 454
Tire pressure warning 
system...................................... 438, 446
TRAC (Traction control 
system) .................................................442 Trunk ........................................................
444
VGRS (Variable Gear Ratio 
Steering) ............................................. 442
VSC/ECB (Vehicle Stability 
Control/Electronically Controlled 
Brake system) .................................. 442
Washer fluid ......................................... 444
Washer Checking ............................................... 374
Preparing and checking  before winter ......................................174
Switch......................................................... 124
Washing and waxing ........................... 344
Weight Cargo capacity .................................... 170
Load limits ............................................... 173
Weight.................................................... 480
Wheels ..................................................... 389
Window glasses ...................................... 52
Window lock switch ............................... 52
Windows Power windows ..................................... 52
Rear window defogger.................... 199
Washer ..................................................... 124
Windshield wipers Position...................................................... 176
Windshield wipers .............................. 124
Winter driving tips .................................. 174
Wireless remote control Locking/Unlocking ............................. 23
Replacing the battery....................... 393
WMA disc ............................................... 224