air conditioning Lexus IS250 2009 Navigation Manual

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AIR CONDITIONING
265
Defogging and defrosting
−The inside of the windshield
For best results, set controls to:
For automatic operation —
Temperature — Towards high
temperature to heat;
low temperature to
cool
Air intake — OUTSIDE AIR
Air flow — WINDSHIELD
For manual operation —
Fan speed — To the desired fan speed
Temperature — Towards high
temperature to heat;
low temperature to
cool
Air intake — OUTSIDE AIR
Air flow — WINDSHIELD
When the windshield air flow button is
pushed, air flows mainly from the wind-
shield vents and turns on the defogging
function with the purpose of clearing the
front view.
Pushing this button once again returns the
air flow mode to the last one used.
This button allows the air intake to select
OUTSIDE AIR mode automatically. This is
to clean up the front view more quickly. If
you want to return the setting to RECIR-
CULATED AIR mode, push the air intake
control button once again.
Touch “A/C” for dehumidified heating or
cooling. This setting clears the front view
more quickly.
DOn humid days, do not blow cold air on
the windshield −the difference be-
tween the outside and inside tempera-
tures could make the fogging worse. −
The outside of the windshield
For best results, set controls to:
For automatic operation —
Temperature — Towards high
temperature
Air intake — OUTSIDE AIR
Air flow — WINDSHIELD
For manual operation —
Fan speed — To the desired fan speed
Temperature — Towards high
temperature
Air intake — OUTSIDE AIR
Air flow — WINDSHIELD
When the windshield air flow button is
pushed, air flows mainly from the wind-
shield vents and turns on the defogging
function with the purpose of clearing the
front view.
Pushing this button once again returns the
air flow mode to the last one used.
This button allows the air intake to select
OUTSIDE AIR mode automatically. This is
to clean up the front view more quickly. If
you want to return the setting to RECIR-
CULATED AIR mode, push the air intake
control button once again.
Touch “A/C” for dehumidified heating or
cooling. This setting clears the front view
more quickly.
DTo heat the vehicle interior while de-
frosting the windshield, choose floor/
windshield air flow.
IS F/350/250_Navi_U
(L/O 0808)

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AIR CONDITIONING
266
(g) Adjusting the position of and open-
ing and closing the air outlets
"Center outlets
1Adjusting air flow direction
2Open or close the vent
"Side outlets
1Adjusting air flow direction
2Open or close the vent
"Rear seat outlets
1Adjusting air flow direction
2Adjusting air flow direction or,
open or close the vent
If air flow control is not satisfactory,
check the center vents, side vents and
rear vents. They may be opened or
closed as shown.
When outside temperature is cold like a
winter season, air flow temperature from
the center vents, side vents and rear vents
may not be warmed up enough for a while
until that the engine coolant temperature
becomes high enough.
If air flow from the center vents, side vents
and rear vents is not satisfactory, air flow
direction can be changed manually by ad-
justing the vents fin direction or the vents
may be closed.
IS F/350/250_Navi_U
(L/O 0808)

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AIR CONDITIONING
267
(h) Checking and replacing the air
conditioning filter
The air conditioning filter must be
cleaned or changed regularly to main-
tain air conditioning efficiency.
DRemoval method
1. Set the air conditioning system to
RECIRCULATED AIR mode.
The air conditioning filter case cannot be
removed in the OUTSIDE AIR mode.
2. Turn the “ENGINE START STOP”
switch off.
When you replace the filter, be sure to turn
off the fan.
3. Open the glove box. Lift and remove
the partition.
4. Remove the filter cover.
5. Remove the filter case.
IS F/350/250_Navi_U
(L/O 0808)

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AIR CONDITIONING
268
D
Cleaning method
If the filter is dirty, clean by blowing
compressed air through the filter from
the downward side.
Hold the air gun 2 in. (5 cm) from the filter
and blow for approximately 2 minutes at 72
psi (500 kPa, 5.0 kgf/cm
2or bar).
If it is not available, have the filter cleaned
by your Lexus dealer.
DReplacement method
Remove the air conditioning filter from
the filter case and replace it with a new
one.
The “
UP” marks shown on the filter and
the filter case should be pointing up.
IS F/350/250_Navi_U
(L/O 0808)

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AIR CONDITIONING
269
Checking interval
Inspect and replace the air conditioning fil-
ter according to the maintenance sched-
ule. In dusty areas or areas with heavy
traffic flow, early replacement may be re-
quired. (For scheduled maintenance infor-
mation, please refer to the “Owner’s
Manual Supplement/Scheduled Mainte-
nance”.)
If air flow from the vents decreases dra-
matically
The filter may be clogged. Check the filter
and replace if necessary.
NOTICE
To prevent damage to the system
DWhen using the air conditioning
system, make sure that a filter is al-
ways installed.
DWhen cleaning the filter, do not
clean the filter with water.
IS F/350/250_Navi_U
(L/O 0808)

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AIR CONDITIONING
270
IS F/350/250_Navi_U
(L/O 0808)

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LEXUS PARKING ASSIST−SENSOR
279
"Multi− information display
"1Touch screen (full screen dis-
play)
2Touch screen (vehicles with rear
view monitor system)
(See “ — Rear view monitor dis-
play” on page 287.)
When an obstacle is detected, the indi-
cator bars will come on or flash, accom-
panied by beeping. How many bars are
lit or flashing depends on the distance
to the obstacle.
When the obstacle is not detected any lon-
ger, beeps will stop sounding and the mul-
ti− information display and the screen will
return to the previous display.
The volume of the beeps and the display
on the screen can be changed. See “ —
Setting the Lexus parking assist −sensor”
on page 289.
"1Detection by front corner sen-
sors
2Detection by rear corner sensors
3Detection by back sensors
The approximate distance to the obstacle
is shown with up to 4 bars on the rear of the
vehicle and up to 3 bars on the front cor-
ners and the rear corners of the vehicle.
CAUTION
To avoid an accident or injury, ob-
serve the following instructions, and
then drive slowly using the brakes
while visually confirming a safe dis-
tance around your vehicle.
DThe sensor detection range is limit-
ed around the bumper. Be sure to
visually confirm safety outside the
sensor detection. For the sensor
detection range, see “ — Detection
range of sensors” on page 284.
DIt might take time for the sensors to
detect obstacles.
DDepending on the shape of the ob-
stacle, indicators or beeps may not
warn you properly, and the detec-
tion range may also be shortened.
DIt might be difficult to hear beeps
due to the volume of audio or air
flow noise of the air conditioning.
IS F/350/250_Navi_U
(L/O 0808)
— Where to display — Indicators

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LEXUS PARKING ASSIST−SENSOR
283
When obstacles are detected on the
front and rear of the vehicle at the same
time; the multi−information display and
screen illuminate their relevant indica-
tor bars. And beeps are as follows:
1Obstacles detected on the front
and rear of the vehicle are not in
areas where continuous beeping
should sound:
The warning for the obstacle closer to the
vehicle will be issued. The above illustra-
tion indicates the obstacle detected by the
back sensors is closer to the vehicle. So,
the warning for the obstacle detected by
the back sensors will be given.
2The obstacle detected on the front
or rear of the vehicle is in an area
where continuous beeping should
sound:
If the possibility of collision with the ob-
stacle is high as shown, the parking as-
sist− sensor warns the driver by continu-
ous beeping (repeating 7 intermittent
beeps and one longer beep as one cycle).
3Both obstacles detected on the
front and rear of the vehicle are in
areas where continuous beeping
should sound:
If the possibility of collision with the ob-
stacles is very high as shown, the parking
assist− sensor warns the driver by continu-
ous beeping (repeating 3 quick beeps and
one longer beep as one cycle).
CAUTION
It might be difficult to hear beeps due
to the volume of audio or air flow
noise of the air conditioning. To
avoid an accident or injury, drive
slowly using the brakes while visual-
ly confirming a safe distance around
your vehicle.
IS F/350/250_Navi_U
(L/O 0808)
— Numerous obstacles are
detected on the front and rea
r
of the vehicle simultaneously

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INDEX
310
Numbers/Symbols
? button
38,86,87
......................
3 Routes selection 62 ..................
A
A/C touch−screen button 250
...........
Adding a memo 124 ...................
Adding destinations 72 .................
Adding the data to the phone book 157 ...
Address button 38 .....................
Adjusting the position of and opening and closing the air outlets 266 ..........
Air conditioning filter 267 ...............
Air flow control touch −screen
button 250 ...........................
Air intake control button 250 ............
Air outlets 266 ........................
Alphabet key 24 .......................
AM·SAT button 186 ....................
Angle mark 232 .......................
Area to avoid 101 .....................
Arrow screen 32,68 ....................
ASL 192 .............................
AUDIO button 186 .....................
Audio language 232 ...................
Audio/video remote controls 240 .........
Auto Answer 151 ......................
AUTO button 250 ......................
Auto Voice Guidance 87,113 .............
Automatic sound levelizer 192 ...........
Automatic transition 181 ................
B
Back sensors 282
.....................
BASS 191
............................
Beep setting 183
......................
Bluetooth r 127
........................
Bluetooth rinformation 169
.............
Brightness 178
........................
Building information 35
.................
C
Calendar with memo 122
...............
Calibration 87 .........................
Call by dial 134 .......................
Call by dialed numbers 135 .............
Call by phone book 134 ................
Call by POI 140 .......................
Call by received calls 136 ..............
Call by speed dial 137 .................
Call by voice recognition 138 ............Call on the Bluetooth
rphone 134 ........
Categories 50 .........................
CAUTION screen 22 ...................
CD changer operation 206 ..............
Cellular phone 127 ....................
CH/DISC button 186 ...................
Change “Area Size” 105 ................
Change “Icon” 95 ......................
Change “Location” 98,104 ...............
Change “Name” 97,103 .................
Change “Phone #” 99 ..................
Change “Quick Access” 96 .............
Change button 38 .....................
Change the route 62 ...................
Change the settings of the
Bluetooth rphone 143 .................
Changing a device name 170 ...........
Changing the angle 231 ................
Changing the audio format 231 ..........
Changing the audio language 230 .......
Changing the Bluetooth rsettings 171 ....
Changing the map DVD −ROM 305 .......
Changing the security code 165
.........
Changing the still picture 229
...........
Changing the subtitle language 230 ......
Chapter 239
..........................
Checking and replacing the air
conditioning filter 267
.................
City center 51
.........................
City name 45,49
.......................
City to search 45,48
....................
CLIMATE button 250 ...................
Climate control 254 ....................
Color 178 ............................
Command list 177 .....................
Compass mode 34 ....................
Compass mode screen 32 ..............
Contrast 178 ..........................
Coordinates button 38 .................
Current position as the search point 52 ...
Current position display 28 .............
Current position/tire change calibration 115 .......................
Cursor position as a destination 29 ......
Cursor position as a memory point 29 ....D
Dealer setting 120
.....................
Default 87 ............................
Del. Dest. button 38 ...................
Delete personal data 182 ...............
Deleting “Quick Access” 97 .............
Deleting a Bluetooth rphone 173
........
Deleting a group name 163 .............
Deleting all of the speed dial 145 ........
IS F/350/250_Navi_U
(L/O 0808)