2015 LEXUS LS600H Owners Manual

3435-3. Using the air conditioning system and defogger
5
Interior features
LS600hL_U(OM50E41U)
■Using the automatic mode
Select on the operation screen.
Select “REAR AUTO”.
The air conditioning system and air
purifier will operate, and air outlets
and speed will be set automatically.
The rear climate control seats are
operated automatically according
to the set temperature and the out-
side temperature. ( P. 3 8 7 )
Select to increase the temperature and to decrease the
temperature on the operation screen.
Air outlets for the right-hand and le ft-hand seats may be set separately
depending on the temperature setting.
When the rear climate control seats are set to “AUTO” mode, the system is
operated automatically according to the set temperature, outside tempera-
ture, etc.
Changing the rear seat settings
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3445-3. Using the air conditioning system and defogger
LS600hL_U(OM50E41U)
■Adjusting the temperature settingSelect on the operation screen.
Select (increase) or
(decrease).
Operating the switch will enter
individual mode.
Left-hand rear seat
Right-hand rear seat
The air conditioning system switches between individual and simultaneous
modes each time “4-ZONE” is selected.
When the rear climate control seats are set to “AUTO” mode, the system is
operated automatically according to the set temperature, outside tempera-
ture, etc.
■Adjusting the fan speed (air purifier and cool air from the roof vents)Select on the operation screen.
To adjust the fan speed, select to increase the fan speed and
to decrease the fan speed.
According to the air outlets currently selected, the fan speed of either the cool
air from the roof vents or ai r purifier will be adjusted.
(  P. 355)
■Turning the rear air conditioning system off
Select on the operation screen.
Select on the operation screen.
The air purifier and the rear clim ate control seats also turn off.
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3455-3. Using the air conditioning system and defogger
5
Interior features
LS600hL_U(OM50E41U)
■Disabling the switches on the rear controller
Select on the operation screen.
Select .
Rear climate control seats buttons
are also locked.
Select on the operation screen.
Select .
Outside air mode switches to (recirculated air) mode. Pollen is removed
from the air and the air flows to the upper part of the body.
Usually the system will turn off automatically after approximately 1 to 3 minutes.
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Micro dust and pollen filter button
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3465-3. Using the air conditioning system and defogger
LS600hL_U(OM50E41U)
■Front center outlets and front side outletsDirect air flow to the left or
right, up or down.
Turn the knob to open or close
the vent.
■Rear center outletsDirect air flow to the left or
right, up or down.
Turn the knob to open or close
the vent.
Adjusting the position of and op ening and closing the air outlets
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3475-3. Using the air conditioning system and defogger
5
Interior features
LS600hL_U(OM50E41U)
■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.
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3485-3. Using the air conditioning system and defogger
LS600hL_U(OM50E41U)
■Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to prioritize
fuel efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling
capacity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode
The air conditioning control of Eco drive mode can be changed to the same setting
as that used in normal drive mode. (Customizable features P. 564)
■Using the automatic mode
Fan speed is adjusted automatically in a ccordance with the temperature setting and
ambient conditions. As a result, the following may occur:
●Immediately after the “AUTO” switch is pressed, the fan may stop for a while until
warm or cool air is ready to flow.
●Cool air may flow to the area around th e upper body when the heater is on.
■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high. Selecting
“A/C” on will dehumidify the air from the outlets and defog the windshield effec-
tively.
●If you turn “A/C” off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Outside/recirculated air mode
●When driving on dusty roads such as tunn els or in heavy traffic, set the outside/
recirculated air mode button to the recirculated air mode. This is effective in pre-
venting outside air from entering the vehicl e interior. During cooling operation, set-
ting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tem-
perature setting or the inside temperature.

3495-3. Using the air conditioning system and defogger
5
Interior features
LS600hL_U(OM50E41U)
■When the outside temperature exceeds 75°F (24°C) and the air conditioning sys-
tem is on
●In order to reduce the air conditioning power consumption, the air conditioning
system may switch to recirculated air mode automatically. This may also reduce
fuel consumption.
●Recirculated air mode is selected as a default mode when the power switch is
turned on.
●It is possible to switch to outside air mode at any time by pressing .
■When the hybrid battery cooling system operates
●If the hybrid battery cooling system operat es when the air conditioning is off, a
message will be shown on the multi-information display and the air conditioning will
automatically turn on. ( P. 105)
●The sound of the air flow may change when cool air flows from the rear roof vents
or the air purifier is in operation. This occurs when the hybrid battery is being
cooled and does not indicate a malfunction.
■Automatic mode for air intake control
In automatic mode, the system detects ex haust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
■Micro dust an d pollen filter
●In order to prevent the windshield from fogging up when the outside air is cold, the
following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The dehumidification function operates.
• The operation cancels after approximately 1 minute.
●In rainy weather, the windows may fog up. Press .
●In extremely humid weather, the windows may fog up.
●The pollens are filtered out even if the mi cro dust and pollen filter is turned off.
■Air purifier
The air purifier will turn on when turn ing the rear air conditioning system on.
■When the outside temperature falls to nearly 32 F (0C)
The dehumidification function may not operate even when “A/C” is selected.

3505-3. Using the air conditioning system and defogger
LS600hL_U(OM50E41U)
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and
accumulate in the air condit ioning system. This may then cause odor to be emitted
from the vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditio ning system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immedi- ately after the air conditioning system is started in automatic mode.
■Air conditioning filter
 P. 4 6 9
■Customization
Settings (e.g. exhaust gas sensor se nsitivity, etc.) can be changed.
(Customizable features P. 5 6 4 )
CAUTION
■To prevent the windshield from fogging up
Do not use
during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outs ide air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.