ignition Lexus GS250 2014 Service Manual

2964-5. Using the driving support systems
GS350_250_OM_OM30E16E_(EE)
When constant speed control mode is selected, your vehicle will maintain
a set speed without controlling the vehicle-to-vehicle distance. Select this
mode only when vehicle-to-vehicle distance control mode does not func-
tion correctly due to dirt etc.
Press the “ON/OFF” button to
activate the cruise control.
Press the button again to deactivate
the cruise control.
Switch to constant speed control
mode.
(Push the lever forward and hold
for approximately one second.)
Cruise control indicator will come on.
When in constant speed control
mode, to return to vehicle-to-vehicle
distance control mode, push the lever
forward again and hold for approxi-
mately 1 second.
After the desired speed has been set,
it is not possible to return to vehicle-
to-vehicle distance control mode.
If the engine switch is turned off and
then turned to IGNITION ON mode
again, the vehicle will automatically
return to vehicle-to-vehicle distance
control mode.
Adjusting the speed setting:
→ P. 2 9 1
Canceling and resuming the speed
setting: →P. 2 9 3
Selecting conventional constant speed control mode
1
2
GS350_250_OM_OM30E16E_(EE).book Page 296 Tuesday, July 8, 201 4 7:11 PM

3074-5. Using the driving support systems
4
Driving
GS350_250_OM_OM30E16E_(EE)
Press the “LKA” switch to activate
the system.
“LKA” indicator will come on.
Press the switch again to turn the LKA
system off.
The LKA system will revert to off each
time the engine switch is turned to
IGNITION ON mode.
Turning the LKA system on
GS350_250_OM_OM30E16E_(EE).book Page 307 Tuesday, July 8, 2014 7:11 PM

3865-2. Using the air conditioning system and defogger
GS350_250_OM_OM30E16E_(EE)
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the engine switch to
IGNITION ON mode will recall that key’s registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will auto-
matically be registered to the electronic key that was used to unlock the vehicle.
The system may not operate correctly if more than one electronic key is in the vicinity
or if the smart entry & start system is used to unlock a passenger door.
Settings for the electronic key and the corresponding door can be changed. Contact
any authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional.
■Using automatic mode
●Fan speed is adjusted automatically according to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow imme-
diately after is pressed.
●Cool air may blow around the upper body even when the heater is on due to sun-
light.
■Humidity sensor
A sensor, which detects humidity inside the
vehicle and the temperature of the wind-
shield, is provided to detect fog on the front
windscreen. Due to the sensor, when auto-
matic mode is set the air conditioning may
make the following controls:
●Changing the amount of air flow
●Changing the amount of air introduced from
outside when in outside air mode with the air
vents in the position
●Changing the settings of the air vents to
when the is set
GS350_250_OM_OM30E16E_(EE).book Page 386 Tuesday, July 8, 201 4 7:11 PM

3965-2. Using the air conditioning system and defogger
GS350_250_OM_OM30E16E_(EE)
Rear window and outside rear view mirror
defoggers
On/off
The defoggers will automatically turn
off after 15 to 60 minutes. The opera-
tion time changes according to the
ambient temperature and vehicle
speed.
■Operating conditions
The engine switch must be in the IGNITION ON mode.
These features are used to defog th e rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces, as they can become very hot and burn
you.
NOTICE
■To prevent battery discharge
Turn the defoggers off when the engine is off.
GS350_250_OM_OM30E16E_(EE).book Page 396 Tuesday, July 8, 201 4 7:11 PM

3985-2. Using the air conditioning system and defogger
GS350_250_OM_OM30E16E_(EE)
■Operating conditions
The engine switch must be in the IGNITION ON mode.
CAUTION
■When the windshield wiper de-icer is on
Do not touch the glass at the lower part of the windshield or to the side of the front
pillars as the surfaces can become very hot and burn you.
GS350_250_OM_OM30E16E_(EE).book Page 398 Tuesday, July 8, 201 4 7:11 PM

415
5
5-5. Other interior features
Interior features
GS350_250_OM_OM30E16E_(EE)
Powe r o u t l e t s
■Front
Open the lid.
■Rear
Open the lid.
■The power outlets can be used when
The engine switch is in ACCESSORY or IGNITION ON mode.
The power outlets can be used for 12V
accessories that run on less than
10A.
GS350_250_OM_OM30E16E_(EE).book Page 415 Tuesday, July 8, 201 4 7:11 PM

417
5
5-5. Other interior features
Interior features
GS350_250_OM_OM30E16E_(EE)
Heated steering wheel∗
Turns the heater on/off
The indicator light comes on when the
heater is operating.
■Operating condition
The engine switch is in IGNITION ON mode.
■Tim er
The heated steering wheel will automatically turn off after about 30 minutes.
∗: If equipped
The heated steering wheel heats the
side grips of the steering wheel.
GS350_250_OM_OM30E16E_(EE).book Page 417 Tuesday, July 8, 201 4 7:11 PM

4235-5. Other interior features
5
Interior features
GS350_250_OM_OM30E16E_(EE)
■The seat heaters/seat ventilators can be used when
The engine switch is in IGNITION ON mode.
■Seat heater control (vehicles without automatic mode)
The seat heater automatically changes operations. If the engine switch is turned off
while the seat heater is operating, the starting operation of the heater differs
depending on the amount of time that elapses before it is turned back on.
■Automatic operation of the seat heater during Eco drive mode
If the driving mode select switch is switched to Eco drive mode in cold temperatures,
the seat heater may be automatically operated to assist heating performance.
■Automatic operation during S-FLOW mode
The front seat heater and ventilator or the rear seat heater may automatically turn off
when S-FLOW mode is turned on during automatic mode. (→P. 3 8 4 )
Current operation
Starting operation mode and amount of time elapsed
until engine switch in IGNITION ON mode
0 to 15 minutesOver 15 minutes
HiHiHi
MidMidHi
LoLoHi
GS350_250_OM_OM30E16E_(EE).book Page 423 Tuesday, July 8, 201 4 7:11 PM

4285-5. Other interior features
GS350_250_OM_OM30E16E_(EE)
Pull the tab of the rear door sun-
shade and hook the shade on using
the anchors.
To retract the rear door sunshade,
unhook the shade and retract it slowly.
■The rear sunshade can be used when
The engine switch is in IGNITION ON mode.
■Operating the rear sunshade after the engine is turned off
The rear sunshade can be operated for approximately 1 minute even after the engine
switch is turned to ACCESSORY mode or turned off.
■Reverse operation feature
To ensure adequate rear visibility, the rear sunshade automatically lowers when the
shift lever is shifted to R.
However, the rear sunshade is raised again if any of the following occurs:
●The button is pressed again.*
●Shift the shift lever into P.
●The shift lever is shifted out of R, and the vehicle reaches a speed of 15 km/h (9
mph).
If the engine is off when the rear sunshade has been lowered due to the reverse
operation feature, it will not be raised even when the engine is turned on again and
the vehicle reaches a speed of 15 km/h (9 mph). To raise the sunshade again, press
the button.
*: Occasionally, the reverse function may not be carried out after the switch has been pressed. Repeat the above operation to operate the function.
Rear door sunshades
GS350_250_OM_OM30E16E_(EE).book Page 428 Tuesday, July 8, 201 4 7:11 PM

449 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
CAUTION
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may
automatically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. (→P. 4 6 1 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.
GS350_250_OM_OM30E16E_(EE).book Page 449 Tuesday, July 8, 201 4 7:11 PM