air condition Lexus GS250 2012 Service Manual

4275-2. Using the air conditioning system and defogger
5
Interior features
GS350/250_EE (OM30C36E)
Changing the air outlets
Press .
The air outlets change as follows each time is pressed.
Air flows as shown below according to the mode selected.
Upper body
Upper body and feet
Feet

4285-2. Using the air conditioning system and defogger
GS350/250_EE (OM30C36E)Direct air flow to the left or
right, up or down.
Turn the knob to open or close
the vent.
Adjusting the position of and opening and closing the air out-
lets (rear center outlets)
1
2

4295-2. Using the air conditioning system and defogger
5
Interior features
GS350/250_EE (OM30C36E)
Button lock function
Rear control panel illumination off function To prevent inadvertent operation, the but-
tons on the rear armrest can be locked.
Press until you hear a beep to lock
the buttons. Pressing again until
you hear a beep will release the lock.
The indicator appears on the display
when the buttons are locked.
Control panel illumination on the rear
armrest can be turned off. Press
until you hear a beep to turn the illumina-
tion off. Pressing again until you
hear a beep will turn the illumination on.
NOTICE
To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is off.

4305-2. Using the air conditioning system and defogger
GS350/250_EE (OM30C36E)
Rear window and outside rear view mirror
defoggers
On/off
The defoggers will automatically
turn off after 15 to 60 minutes. The
operation 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 the rear window, and to remove
raindrops, 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.

431
5 5-2. Using the air conditioning system and defogger
Interior features
GS350/250_EE (OM30C36E)
Windshield wiper de-icer
Press the “MENU” button on the Remote Touch. (P. 368)
Select “Climate” on the
“Menu” screen.
ON/OFF
Select to turn on the wind-
shield wiper de-icer. The wind-
shield wiper de-icer will
automatically turn off after
approximately 15 minutes. Select-
ing again also turns the de-
icer off.
Operating conditions
The engine switch must be in the IGNITION ON mode.
: If equipped
This feature is used to prevent ice from building up on the wind-
shield and wiper blades.
1
2
3
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.

5465-4. Using the hands-free phone system (for cellular phone)
GS350/250_EE (OM30C36E)
When using the hands-free system
The audio system is muted when making a call.
If both parties speak at the same time, it may be difficult to hear.
If the incoming call volume is overly loud, an echo may be heard.
Try to face toward the microphone as much as possible when speaking.
In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• If a window is open
• If the air conditioning is blowing directly on the microphone
• If the air conditioning is set to high
• There is an effect from the network of the cellular phone
Conditions under which the system will not operate
If using a cellular phone that does not support Bluetooth®
If the cellular phone is turned off
If you are outside service range
If the cellular phone is not connected
If the cellular phone’s battery is low
When the cellular phone is not connected, “No connect” is displayed.
Bluetooth® antenna
The antenna is built into the instrument panel. If the cellular phone is behind
the seat or in the console box, or touching or covered by metal objects, con-
nection status may deteriorate.
Battery charge/Signal status
This display may not correspond exactly with the cellular phone itself.
When the cellular phone is out of the service area or in a place inaccessible
by radio waves, “No service” is displayed.
When using Bluetooth® audio and hands-free system at the same time
The following problems may occur.
The Bluetooth® connection may be cut.
Noise may be heard on the Bluetooth® audio playback.

629
5 5-7. Other interior features
Interior features
GS350/250_EE (OM30C36E)
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.
Timer
The heated steering wheel will automatically turn off after about 30 minutes.
If the indicator light flashes
Press the button to turn the heated steering wheel off and then press the but-
ton again. If the indicator light still flashes, a malfunction may be occurring.
Turn the heated steering wheel off and have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional.
: If equipped
The heated steering wheel heats the side grips of the steering
wheel.

643
6Maintenance and care
GS350/250_EE (OM30C36E)
6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ......... 644
Cleaning and protecting
the vehicle interior .......... 648
6-2. Maintenance
Maintenance
requirements ................... 651
6-3. Do-it-yourself maintenance
Do-it-yourself service
precautions...................... 654
Hood ................................. 657
Positioning a floor jack ..... 658
Engine compartment ......... 660
Tires .................................. 672
Tire inflation pressure ....... 689
Wheels .............................. 691
Air conditioning filter ....... 693
Electronic key battery ....... 695
Checking and replacing
fuses ................................ 698
Light bulbs ........................ 720

6526-2. Maintenance
GS350/250_EE (OM30C36E)
Where to go for service?
In order to maintain your vehicle in the best possible condition, Lexus rec-
ommends that all repairs and service operations be carried out by authorized
Lexus dealers or repairers or other duly qualified and equipped professionals.
For repairs and services covered by your warranty, please visit an authorized
Lexus dealer or repairer, who will use genuine Lexus parts in repairing any
difficulties you may encounter. There can also be advantages in utilizing
authorized Lexus dealers or repairers for non-warranty repairs and services,
as members of the Lexus network will be able to expertly assist you with any
difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped profes-
sional will perform all of the scheduled maintenance on your vehicle reliably
and economically due to their experience with Lexus vehicles.
Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
Engine missing, stumbling or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (However, water dripping from the air condi-
tioning system after use is normal.)
Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked
immediately.)
Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
Vehicle pulls to one side when driven straight on a level road
Strange noises related to suspension movement
Loss of brake effectiveness, spongy feeling brake pedal, pedal almost
touches the floor, vehicle pulls to one side when braking
Engine coolant temperature continually higher than normal (P. 9 9 )
If you notice any of these clues, take your vehicle to any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as
soon as possible. Your vehicle may need adjustment or repair.

6566-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
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 cool-
ant temperature is high. (P. 667)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting 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. Also, a backfire could cause a fire in the engine
compartment.
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.