air conditioning LEXUS LS600H 2017 Service Manual

4235-3. Using the air conditioning system and defogger
5
Interior features
LS600h/LS600hL_EE(OM50G20E)
■Rear center outlets Direct air flow to the left or right, up or down.
Turn the knob to open or close the vent.
■Rear side outlets Direct air flow to the left or
right, up or down.
Turn the knob to open or close
the vent.
■Roof side outlets
Direct air flow to the left or right,
up or down.
Adjusting the position of and opening and closing the air outlets
Without rear console displayWith rear console display
1
2
1
2

4245-3. Using the air conditioning system and defogger
LS600h/LS600hL_EE(OM50G20E)
■Button lock function
To prevent inadvertent operation, the buttons on the rear controller for the air condi-
tioning system, rear sunshade, rear door sunshades, and audio system can be
locked.
The rear controller can be locked from the air conditioning operation screen.
( P. 411)
■Rear control panel illumination off function
Control panel illumination on the rear controller can be turned off.
■Replacing the rear air conditioning filter
Replacing the air conditioning filter when using rear air conditioning or air purifier
reduces air flow or deodorizing performance. ( P. 529)
Press and hold the “MODE” switch until you
hear a beep to lock the buttons. Pressing the
“MODE” switch again until you hear a beep
will release the lock.
An indicator appears on the display when the
buttons are locked.
Press and hold the “PWR” switch until you
hear a beep to turn the illumination off. Press-
ing the “PWR” switch again until you hear a
beep will turn the illumination on.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.

4255-3. Using the air conditioning system and defogger
5
Interior features
LS600h/LS600hL_EE(OM50G20E)
On/off
The defoggers will automatically turn
off after approximately 15 minutes.
■Operating conditions
The power switch must be in the ON mode.
Rear window and outside rear view mirror
defoggers
These features are used to defog the 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 12-volt battery discharge
Turn the defoggers off when the hybrid system is off.

4265-3. Using the air conditioning system and defogger
LS600h/LS600hL_EE(OM50G20E)
Press the “MENU” button on the Remote Touch. (P. 390)
Select on the “Menu” screen.
Select on the “Climate” screen.
Operates the windshield wiper
de-icer on/off.
Select on the option control
screen to turn on the windshield wiper
de-icer, then the indicator will be on.
The windshield wiper de-icer will
automatically turn off after approxi-
mately 15 minutes, then the indicator
will be off. Selecting on the
option control screen again also turns
the de-icer off.
■Operating conditions
The power switch must be in the ON mode.
Windshield wiper de-icer
: If equipped
This feature is used to prevent ice from building up on the windshield
and wiper blades.
1
2
3
4
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.

4565-6. Other interior features
LS600h/LS600hL_EE(OM50G20E)
Press the knob to release the
lock.
Press the knob to lock it when not in
use.
AUTO setting
Turn the knob to the “AUTO”
position.
When set to “AUTO” mode, seat
heater, off, ventilation or seat cooler is
automatically selected according to
the set temperature of the air condi-
tioning system, outside temperature,
etc.
Climate control seats/seat heaters
: If equipped
The seats can be heated or cooled. When set to “AUTO” mode, the cli-
mate control seats/seat heaters are linked to the air conditioning set-
tings and automatically adjusted.
Front climate control seats
1
2

4575-6. Other interior features
5
Interior features
LS600h/LS600hL_EE(OM50G20E)
Manual setting
Set the temperature by turning
the knob to the left or right.
Off
Seat heater
Ventilation
Seat cooler
■AUTO setting
The switch turned on/off.
When set to “AUTO” mode, the
indicator illuminates.
When set to “AUTO” mode, seat
heater, off, ventilation* or seat
cooler* is automatically selected
according to the set temperature of
the air conditioning system, outside
temperature, etc.
*: Vehicles with climate control seats
2
1
2
3
4
Rear climate control seats (if eq uipped)/seat heaters (if equipped)
5-seat models4-seat models

4725-6. Other interior features
LS600h/LS600hL_EE(OM50G20E)
Vehicles without rear air conditioning system
To use the coat hook, push it on.
Vehicles with rear air conditioning system
To use the coat hook, push it on.
Coat hooks
CAUTION
■Items that must not be hung on the hook
Do not hang a coat hanger or other hard or sharp object on the hook. If the SRS
curtain shield airbags deploy, these items may become projectiles that cause death
or serious injury.

475
6Maintenance and care
LS600h/LS600hL_EE(OM50G20E)
6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 476
Cleaning and protecting
the vehicle interior..................480
6-2. Maintenance
Maintenance
requirements ............................483
6-3. Do-it-yourself maintenance
Do-it-yourself service
precautions................................486
Hood ...............................................489
Positioning a floor jack ............490
Engine compartment ............... 492
12-volt battery .............................502
Tires .................................................506
Tire inflation pressure .............. 525
Wheels ........................................... 527
Air conditioning filter ............... 529
Electronic key battery.............. 532
Checking and
replacing fuses .........................535
Light bulbs...................................... 541

4846-2. Maintenance
LS600h/LS600hL_EE(OM50G20E)
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends
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 ser-
vices 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 anothe r duly qualified and equipped professional
will perform all of the scheduled maintenance on your vehicle reliably and economi-
cally 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 indi-
cate 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 conditioning
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. 116)
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.

4876-3. Do-it-yourself maintenance
6
Maintenance and care
LS600h/LS600hL_EE(OM50G20E)
Tire inflation pressure (P. 525)• Tire pressure gauge
• Compressed air source
Washer fluid ( P. 501)
• Water or washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or
washer fluid)
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious
injury, observe the following precautions.
■When working on the engine compartment
●Make sure that the indicator on the power switch and the “READY” indicator are
both off.
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, power control unit, radiator, exhaust manifold,
etc. right after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flam-
mable.
●Take care because brake fluid can harm your hands or eyes and damage painted
surfaces. If fluid gets on your hands or in your eyes, flush the affected area with
clean water immediately.
If you still experience disc omfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automatically
start to run if the air conditioning is on and/or the coolant temperature is high.
( P. 500)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
ItemsParts and tools