windshield wipers Lexus GS350 2012 User Guide

2464-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)
Raindrop sensor (vehicles with rain-sensing windshield wipers)
If the wiper is turned to AUTO mode while the engine switch is in IGNI-
TION ON mode, the wipers will operate once to show that AUTO mode is
activated.
If the temperature of the raindrop sensor is 85°C (185°F) or higher, or -
30°C (-22°F) or lower, automatic operation may not occur. In this case,
operate the wipers in any mode other than AUTO mode.
When the windshield wipers are in temporary operation
AUTO mode cannot be activated even if is pressed.
If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the
windshield washer fluid reservoir.
The raindrop sensor judges the amount
of raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from
the rising or setting of the sun intermit-
tently strikes the windshield, or if bugs
etc. are present on the windshield.
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 AUTO mode. Take care that
your fingers or anything else do not become caught in the windshield wip-
ers.
Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility.
This may lead to an accident, resulting in death or serious injury.

2474-3. Operating the lights and wipers
4
Driving
GS350/250_EE (OM30C36E)
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.
When a nozzle becomes blocked
In this case, contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Do not try to clear it with a pin or other object. The nozzle will be damaged.
When standing the windshield wipers up
Raise the wipers in line with the windshield. (P. 362)
Failure to do so may result in damage to the wipers and/or the hood.

2484-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)
Headlight cleaner switch
Press the switch to clean the
headlights.
The headlight cleaners can be operated when
The engine switch is in IGNITION ON mode and the headlight switch is
turned on.
Windshield washer linked operation
When the windshield washer is operated with the engine switch in IGNI-
TION ON mode and the headlights on, the headlight cleaners will operate
once. (P. 241)
Washer fluid can be sprayed on the headlights.
NOTICE
When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.

2664-5. Using the driving support
GS350/250_EE (OM30C36E)
Adjusting the speed setting:
P. 2 5 5
Canceling and resuming the speed
setting: P. 2 5 5
Dynamic radar cruise control can be set when
The shift lever is in D.
Range 4 or higher of D has been selected by using the paddle shift.
Vehicle speed is above approximately 50 km/h (30 mph).
Accelerating after setting the vehicle speed
The vehicle can accelerate normally. After acceleration, the set speed
resumes. However, during vehicle-to-vehicle distance control mode, the
vehicle speed may decrease below the set speed in order to maintain the dis-
tance to the vehicle ahead.
Automatic cancelation of vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the
following situations:
Actual vehicle speed falls below approximately 40 km/h (25 mph).
VSC is activated.
TRC is activated for a period of time.
When the VSC or TRC system is turned off by pressing the VSC OFF
switch.
The sensor cannot operate correctly because it is covered in some way.
The windshield wipers are operating at high speed (when the wipers are in
AUTO mode or the high speed wiper operation).
When snow mode is set.
If vehicle-to-vehicle distance control driving is automatically canceled for
any other reason, there may be a malfunction in the system. Contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional.

3624-6. Driving tips
GS350/250_EE (OM30C36E)If heavy snow or icy condition is expected, shift the rest position
manually.
Grip the hook section of the wiper arm firmly when shifting the
wiper position.
To rest position
Raise the wiper in line with
the windshield.
You can stand the wipers up for
the rest position.
: More than 10 cm (3.9 in.)
To retract position
Lower the wipers by pressing
on the upper part of the hook
section.
Tire chain installation
Observe the following precautions when installing and removing chains:
Install and remove tire chains in a safe location.
Install tire chains on the rear tires. Do not install tire chains on the front
tires.
Install tire chains on rear tires as tightly as possible. Retighten chains after
driving 0.5  1.0 km (1/4  1/2 mile).
Install tire chains following the instructions provided with the tire chains.
Shifting the windshield wiper position

3644-6. Driving tips
GS350/250_EE (OM30C36E)
NOTICE
Repairing or replacing snow tires
Request repairs or replacement of snow tires from Lexus dealers or legiti-
mate tire retailers.
This is because the removal and attachment of snow tires affects the opera-
tion of the tire pressure warning valves and transmitters.
Fitting tire chains (vehicles without 19 inch tires)
The tire pressure warning valves and transmitters may not function cor-
rectly when tire chains are fitted.
When standing the windshield wipers up
Raise the wipers in line with the windshield. (P. 362)
Failure to do so may result in damage to the wipers and/or the hood.

6466-1. Maintenance and care
GS350/250_EE (OM30C36E)
CAUTION
When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components etc. to catch fire.
When cleaning the windshield (with rain-sensing windshield wipers)
When the upper part of the windshield where the raindrop sensor is
located is touched by hand
When a wet rag or similar is held close to the raindrop sensor
If something bumps against the windshield
If you directly touch the raindrop sensor body or if something bumps into
the raindrop sensor
Precautions regarding the exhaust pipes and rear bumper diffusers
Exhaust gases cause the exhaust pipes and rear bumper diffusers to become
quite hot.
When washing the vehicle, be careful not to touch the pipes and diffusers
until they have cooled sufficiently, as touching hot exhaust pipes and rear
bumper diffusers can cause burns.
Set the wipers to the intermittent wind-
shield wipers. (P. 245)
If AUTO mode is selected, the wipers
may operate unexpectedly in the follow-
ing situations, and may result in hands
being caught or other serious injuries and
cause damage to the wiper blades.

6476-1. Maintenance and care
6
Maintenance and care
GS350/250_EE (OM30C36E)
NOTICE
To prevent paint deterioration and corrosion on the body and components
(aluminum wheels etc.)
Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the
paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust,
iron powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
If the paint is chipped or scratched, have it repaired immediately.
To prevent the wheels from corroding, remove any dirt and store in a
place with low humidity when storing the wheels.
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 to the surfaces of the lights.
Wax may cause damage to the lenses.
When using an automatic car wash (with rain-sensing windshield wipers)
Set the wipers to the intermittent windshield wipers. (P. 245)
If AUTO mode is selected, the wipers may operate and the wiper blades
may be damaged.

711 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350/250_EE (OM30C36E)
12H-LP LH-LO20Left-hand headlight
13H-LP RH-LO20Right-hand headlight
14WA S H - S5Driver support system
15WIP-S7.5Windshield wipers, power management
system
16COMB SW5Windshield wipers
17TV7.5Remote Touch screen
18EPS-B5Electric power steering
19ODS5No circuit
20IG2 NO.15Power management system, DCM, CAN
gateway ECU
21GAUGE5Gauges and meters
FuseAmpereCircuit

7126-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
Left side instrument panel
Left-hand drive vehicles
FuseAmpereCircuit
1STOP7.5Stop lights, high mounted stoplight
2P/W-B5Power window master switch
3P/SEAT1 F/L30Power seats
4D/L NO.125Power door lock system
5NV-IR10No circuit
6FL S/HTR10Seat heaters/ventilators
7WIPER30Windshield wipers
8WIPER-IG5Windshield wipers
9LH-IG10
Seat belts, body ECU, AFS, overhead
module, raindrop sensor, inside rear view
mirror, lane camera sensor (LKA), head-
up display, shift lock system, Lexus
parking assist-sensor, front left-hand
door ECU, driver monitor system,
Remote Touch screen, electric tilt and
telescopic steering column, power seats,
moon roof, Lexus parking assist-sensor
switch