engine Lexus GS250 2014 Manual Online

2564-2. Driving procedures
GS350_250_OM_OM30E16E_(EE)
The parking brake is set or released automatically according to shift lever
operation.
Turns automatic mode on/off
●When the shift lever is moved out
of P, the parking brake will be
released.
●When the shift lever is moved into
P, the parking brake will be set.
Operate the shift lever with the brake
pedal depressed.
■Parking brake operation
●When the engine switch is not in IGNITION ON mode, the parking brake cannot
be released using the parking brake switch.
●When the engine switch is not in IGNITION ON mode, automatic mode (auto-
matic brake setting and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system
may restrict operation to prevent overheating. If this happens, refrain from operat-
ing the parking brake. Normal operation will return after about 1 minute.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
■Parking brake indicator light
●Depending on the engine switch mode, the parking brake indicator light will come
on and stay on as described below:
IGNITION ON mode: Comes on until the parking brake is released.
Not in IGNITION ON mode: Stays on for approximately 15 seconds.
●When the engine switch is turned off with the parking brake set, the parking brake
indicator light will stay on for about 15 seconds. This does not indicate a malfunc-
tion.
Automatic mode
GS350_250_OM_OM30E16E_(EE).book Page 256 Tuesday, July 8, 201 4 7:11 PM

259
4
4-3. Operating the lights and wipers
Driving
GS350_250_OM_OM30E16E_(EE)
Headlight switch
Turning the end of the lever turns on the lights as follows:
The front position, tail,
license plate and instru-
ment panel lights turn on.
The headlights and all lights
listed above turn on.
The headlights, daytime
running lights and all the
lights listed above turn on
and off automatically.
(When the engine switch is
in IGNITION ON mode.)
The daytime running lights
turn on.
The headlights can be operated manually or automatically.
Operating instructions
1
2
3
4
GS350_250_OM_OM30E16E_(EE).book Page 259 Tuesday, July 8, 201 4 7:11 PM

2604-3. Operating the lights and wipers
GS350_250_OM_OM30E16E_(EE)
With the headlights on, push the
lever away from you to turn on
the high beams.
Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and
release it to flash the high beams
once.
You can flash the high beams with the
headlights on or off.
This system allows the headlights and front position lights to be turned on
for 30 seconds when the engine switch is off.
Pull the lever toward you and
release it with the light switch is in or after turning the engine
switch off.
Pull the lever toward you and release it
again to turn off the lights.
Turning on the high beam headlights
1
2
Follow me home system
GS350_250_OM_OM30E16E_(EE).book Page 260 Tuesday, July 8, 201 4 7:11 PM

2624-3. Operating the lights and wipers
GS350_250_OM_OM30E16E_(EE)
■Daytime running light system
To make your vehicle more visible to other drivers, the front position lights turn on
automatically whenever the engine is started and the parking brake is released. Day-
time running lights are not designed for use at night.
■Headlight control sensor
■Automatic light off system
●When the light switch is in : The headlights turn off automatically if the engine
switch is turned to ACCESSORY mode or turned off.
●When the light switch is in : The headlights and all lights turn off automatically if
the engine switch is turned to ACCESSORY mode or turned off.
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn
the light switch off once and then back to or .
If any of the doors or trunk lid is kept op en, the lights automatically turn off after 20
minutes.
■Light reminder buzzer
A buzzer sounds when the engine switch is turned off or turned to ACCESSORY
mode and the driver’s door is opened while the lights are turned on.
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of pas-
sengers and the loading condition of the vehicle to ensure that the headlights do not
interfere with other road users. The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.
GS350_250_OM_OM30E16E_(EE).book Page 262 Tuesday, July 8, 201 4 7:11 PM

2634-3. Operating the lights and wipers
4
Driving
GS350_250_OM_OM30E16E_(EE)
■If the “AFS OFF” indicator flashes
It may indicate a malfunction in the system. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: →P. 656)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.
GS350_250_OM_OM30E16E_(EE).book Page 263 Tuesday, July 8, 201 4 7:11 PM

2674-3. Operating the lights and wipers
4
Driving
GS350_250_OM_OM30E16E_(EE)
■The Automatic High Beam can be operated when
The engine switch is in IGNITION ON mode.
■Camera sensor detection information
●High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve
• When the vehicle is cut in front of by another
• When oncoming or preceding vehicles are hidden from sight due to repeatedcurves, road dividers or roadside trees
• When oncoming vehicles appear from the faraway lane on wide road
• When oncoming or preceding vehicles have no lights
●High beam may be turned off if an oncoming vehicle that is using fog lights without
using the headlights is detected.
●House lights, street lights, red traffic signals, and illuminated billboards or signs may
cause the high beam to turn off.
●The following factors may affect the amount of time taken to turn high beam on or
off:
• The brightness of headlights, fog lights, and tail lights of oncoming and preced- ing vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle only has operational lights on one side
• When a oncoming or preceding vehicle is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface etc.)
• The number of passengers and amount of luggage
●High beam may be turned on or off when unexpected by the driver.
GS350_250_OM_OM30E16E_(EE).book Page 267 Tuesday, July 8, 201 4 7:11 PM

2764-3. Operating the lights and wipers
GS350_250_OM_OM30E16E_(EE)
The wipers can be used as intermittent windshield wipers, which operate
regardless of vehicle speed or amount of raindrops. The intermittent
windshield wiper operation can be switched when the vehicle is stopped
and the wiper is off. The wiper operation cannot be switched during
AUTO mode or while the intermittent windshield wipers are operating.
Press and hold until the AUTO
mode indicator stops flashing.
If is pressed and held until the
AUTO mode indicator stops flashing
again, it will return to its previous state.
■The windshield wiper and washer can be operated when
The engine switch is in IGNITION ON mode.
■Dripping prevention wiper sweep
After washing and wiping operation several times, the wipers operate one more time
after a short delay to prevent dripping.
However, the last sweep will not happen while the vehicle is moving.
■Effects of vehicle speed on wiper operation
●Intermittent windshield wipers interval changes when the vehicle is stopped.
●With low speed operation selected, wiper operation will be switched from low
speed to intermittent operation only when the vehicle is stationary.
Switching between the intermittent windshield wipers and rain-
sensing windshield wipers (vehicles with rain-sensing windshield
wipers)
GS350_250_OM_OM30E16E_(EE).book Page 276 Tuesday, July 8, 201 4 7:11 PM

2774-3. Operating the lights and wipers
4
Driving
GS350_250_OM_OM30E16E_(EE)
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If AUTO mode is selected while the engine switch is in IGNITION 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 wind-
shield 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 intermittently
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 wipers.
■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.
GS350_250_OM_OM30E16E_(EE).book Page 277 Tuesday, July 8, 2014 7:11 PM

279
4
4-3. Operating the lights and wipers
Driving
GS350_250_OM_OM30E16E_(EE)
Headlight cleaner switch
Press the switch to clean the head-
lights.
■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 IGNITION ON
mode and the headlights on, the headlight cleaners will operate once. (
→P. 2 7 2 )
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.
GS350_250_OM_OM30E16E_(EE).book Page 279 Tuesday, July 8, 201 4 7:11 PM

2804-4. Refueling
GS350_250_OM_OM30E16E_(EE)
Opening the fuel tank cap
●Close all the doors and windows, and turn the engine switch off.
●Confirm the type of fuel.
■Fuel types
EU area:
Unleaded gasoline conforming to European standard EN228, Research Octane
Number of 95 or higher
Except EU area:
Unleaded gasoline, Research Octane Number of 95 or higher
■Use of ethanol blended gasoline in a gasoline engine
Lexus allows the use of ethanol blended gasoline where the ethanol content is up to
10%. Make sure that the ethanol blended gasoline to be used has a Research
Octane Number that follows the above.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
GS350_250_OM_OM30E16E_(EE).book Page 280 Tuesday, July 8, 201 4 7:11 PM