2012 Lexus GS250 wipers

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.

2794-5. Using the driving support
4
Driving
GS350/250_EE (OM30C36E)
Temporary cancelation of the LKA system functions
If any of the following occurs, the LKA system functions will be temporarily
canceled. The functions will resume after the necessary operating conditions
have returned.
The steering wheel is turned as far as necessary to cause the vehicle to
change lanes.
When the system detects no-handed driving. (The lane keeping assist func-
tion will be temporarily canceled, but the lane departure warning function
will continue.)
The turn signal lever is operated.
The vehicle speed deviates from the operating range of the LKA system
functions. (The buzzer will beep twice when the lane keeping assist func-
tion is being canceled.)
When the lane lines cannot be recognized while driving. (The buzzer will
beep twice when the lane keeping assist function is being canceled.)
The wiper switch is set on high speed mode or is set on AUTO mode with
wipers operating at high speed. (The lane keeping assist function will be
temporarily canceled, but the lane departure warning function will con-
tinue.)
If the vehicle crosses a line for approximately half a minute or more. (The
lane keeping assist function will be temporarily canceled, but the lane
departure warning function will continue.)
When the lane departure warning function is activated.
The lane departure warning function will not operate again for a several
seconds after it has been activated, even if the vehicle leaves the lane again.
The lane departure warning
It may be difficult to feel the sensory warning depending on the road condi-
tions.
No-handed driving warning
If the steering wheel is not operated for approximately 15 seconds on a
straight road or approximately 5 seconds on a curve, the buzzer will beep
twice, indicators on the multi-information display will flash, and the lane
keeping assist function will be temporarily canceled. If you drive the vehicle
with your hands lightly touching the steering wheel, this may also be
detected as no-handed driving.

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