heater Lexus IS220d 2012 Navigation manual

276
1. AIR CONDITIONING SYSTEM OPERATION
ISF_IS_ISC_Navi_EE
Rear centre outlets
1Press the rear window and outside
rear view mirror defogger button.
The thin heater wires on the inside of
the rear window and the heater panels
in the outside rear view mirrors will
quickly clear the surface.
The indicator is on when the defogger
is operating.
No.Function
Direct air flow to the left or right,
up or down
Turn the knob to open or close the
vent
DEFOGGING THE REAR
WINDOW AND OUTSIDE
REAR VIEW MIRROR
This feature is used to defog the rear
window and outside rear view mir-
ror.
The “ENGINE START STOP”
switch must be in IGNITION ON
mode.

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1. AIR CONDITIONING SYSTEM OPERATION
6
AIR CONDITIONING
ISF_IS_ISC_Navi_EE
1Press the pollen removal mode but-
ton.
Usually the system will turn off auto-
matically after 1 or 3 minutes.
To stop the operation, press the pollen
removal mode button again.
CAUTION
When the outside rear view mirror
defoggers are on, do not touch the
outside surface of the rear view mir-
ror as it can become very hot and burn
you.
NOTICE
When cleaning the inside of the rear
window, be careful not to scratch or
damage the heater wires or connec-
tors.
To prevent the battery from being dis-
charged, turn the switch off when the
engine is not running.
INFORMATION
The defoggers will automatically turn
off after 15 to 60 minutes. The opera-
tion time changes according to the
ambient temperature and vehicle
speed.
If further defrosting or defogging is
desired, simply actuate the switch
again. When the surface has cleared,
press the button once again to turn the
defogger off. Continuous use may
cause the battery to discharge, espe-
cially during stop-and-go driving.
The defogger is not designed to dry
rain water or to melt snow.
If the outside rear view mirrors are
heavily coated with ice, use a spray
de-icer before operating the system.
When the retractable hardtop is open,
the rear window defogger is not oper-
able. The indicator will come on if the
outside rear view mirror defoggers
are used. (IS250C)
POLLEN REMOVAL MODE
Outside air mode switches to recircu-
lated air mode. Pollen is removed
from the air flows to the upper part of
the body.
INFORMATION
In order to prevent the window from
fogging up when the outside air is
cold, the following may occur:
• Outside air mode does not switch to
recirculated air mode.
• The air conditioning system oper-
ates automatically.
• The operation cancels after 1 min-
ute.
In rainy weather, the windows may
fog up. Press the windshield air flow
button.

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1. AIR CONDITIONING SYSTEM OPERATION
ISF_IS_ISC_Navi_EE
The displayed temperature ranges
from -40C up to 50C.
OUTSIDE TEMPERATURE
DISPLAY
Outside temperature is displayed on
the screen.
INFORMATION
In the following situations, the correct
outside temperature may not be dis-
played, or the display may take longer
than normal to change.
• When stopped, or driving at low
speeds (less than 15.5 mph [25 km/
h])
• When the outside temperature has
changed suddenly (at the entrance/
exit of a garage, tunnel, etc.)
If the temperature shows “--” or “E”,
take your vehicle to any authorized
Lexus dealer or repairer, or another
duly qualified and equipped profes-
sional.
AIR CONDITIONING
SYSTEM OPERATING HINTS
INFORMATION
Using the automatic mode
• Fan speed is adjusted automatically
in accordance with the temperature
setting and ambient conditions. As a
result, the following may occur:
• Immediately after the “AUTO” but-
ton 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
the upper body when the heater is
on.
Using the system in recirculated air
mode
• The windows will fog up more eas-
ily if the recirculated air mode is
used for an extended period.
Switching between outside air and
recirculated air modes
• Recirculated air mode or outside air
mode may be automatically
switched to in accordance with the
temperature setting and the inside
temperature.
• When the retractable hardtop is
opened, recirculated air mode is
automatically selected. (IS250C)
Window defogger feature
• Recirculated air mode may automat-
ically switch to outside air mode in
situations where the windows need
to be defogged.
When outside temperature
approaches 0C
• The air conditioning system may not
operate even when “A/C” is
selected.

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1. AIR CONDITIONING SYSTEM OPERATION
6
AIR CONDITIONING
ISF_IS_ISC_Navi_EE
INFORMATION
Automatic air intake change mode
• In automatic mode, the system auto-
matically switches between recircu-
lated air and outside air modes
according to whether the system
detects harmful substances such as
exhaust gas in the air outside.
• When the retractable hardtop is
opened, recirculated air mode is
automatically selected. (IS250C)
When the indicator light on “A/C”
flashes
• Touch “A/C” to turn off the air con-
ditioning system and turn it on
again. There may be a problem in
the air conditioning system if the
indicator light continues to flash.
Turn the air conditioning system off
and have it inspected by any autho-
rized Lexus dealer or repairer, or
another duly qualified and equipped
professional.
Air conditioning filter
• The air conditioning filter may clog
after long use. The filter may need
to be replaced if the air flow of the
air conditioner and heater experi-
ences extreme reductions in operat-
ing efficiency, or if the windows
become to fog up easily. (For
details, refer to “Owner’s Manual”.)