air conditioning TOYOTA SIENNA 2003 XL20 / 2.G User Guide

03 SIENNA_U (L/O 0207)
1942003 MY SIENNA (OM45410U)
1. “A/C” button
2. “MODE” button (air flow selector)
3. Fan speed selector
4. Windshield air flow button
5. Temperature selector
6. Air intake selector
7. “AUTO” button
8. “OFF” button
Front automatic air conditioning system—
—Controls

03 SIENNA_U (L/O 0207)
1952003 MY SIENNA (OM45410U)
“AUTO” button
For automatic operation of the air condi-
tioning, press the “AUTO” button. An indi-
cator light will illuminate to show that the
automatic operation mode has been se-
lected.
In the automatic operation mode, the air
conditioning selects the most suitable fan
speed, air flow, air intake and onoff of
the air conditioning according to the tem-
perature.
When you adjust the temperature selector
button to maximum cooling, a “MAX
COLD” message will appear on the display
and the air intake mode will be automati-
cally changed to RECIRCULATE.
You may use manual controls if you want
to select your own settings.
To turn off the automatic operation, press
the “OFF” button.
Fan speed selector
Push the “
” (increase) or “” (de-
crease) side of the button to adjust the
fan speed.
In automatic operation, you do not have
to adjust the fan speed unless you desire
another fan speed mode. Temperature selector
To increase the temperature, press the
“
” side, to decrease it, press the “”
side.
“MAX COLD” appears when you adjust to
maximum cooling, and “MAX HOT” when
you adjust to maximum warming.
“OFF” button
Push the button to turn off the air condi-
tioning system.
“MODE” button (air flow selector)
Push the “MODE” button to select the
vents used for air flow.
In automatic operation, you do not have
to select the air flow unless you desire
another air flow mode.
1. Panel— Air flows mainly from the
instrument panel vents.
2. Bilevel— Air flows from both the floor
vents and the instrument panel vents.
3. Floor— Air flows mainly from the floor
vents.
4. Floor/Windshield— Air flows mainly
from the floor vents and windshield
vents.

03 SIENNA_U (L/O 0207)
1962003 MY SIENNA (OM45410U)
Windshield air flow button
When this button is pressed, air flows
mainly from the windshield vents and
turns on the defogging function with the
purpose of clearing the front view.
Pressing this button once again returns
the air flow mode to the last one used.
This button allows the air intake to select
FRESH automatically. This is to clean up
the front view more quickly. If you want
to return the setting to RECIRCULATE
mode, press the air intake selector button
once again.
Press the “A/C” button for dehumidified
heating or cooling. This setting clears the
front view more quickly.When the “A/C” button is not pressed in,
pressing another air flow button turns off
the air conditioning.
For details about air flow selector settings,
see the illustration after “A/C” button.
Air intake selector
The air intake selector button is used to
switch the air intake FRESH
mode that
draws outside air into the system and RE-
CIRCULATE mode that recirculates the air
inside vehicle.
To turn the air source to RECIRCULATE
mode, press the button. The indicator will
come on. To turn the air source to FRESH
mode, press the button again. The indica-
tor will go off.
To prevent fogging up of the windshield,
the air intake mode may change automati-
cally to FRESH depending on the condi-
tion of the air conditioning system.
“A/C” button
To turn on the air conditioning, press the
“A/C” button. The “A/C” button indicator
will come on. To turn the air conditioning
off, press the button again.
If the “A/C” button indicator flashes, there
is a problem in the air conditioning system
and the air conditioning automatically
shuts off. If this happens, take your ve-
hicle to a Toyota dealer for service.

03 SIENNA_U (L/O 0207)
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To cool off your Toyota after it has
been parked in the hot sun, drive with
the windows open for a few minutes.
This vents the hot air, allowing the air
conditioning to cool the interior more
quickly.
Make sure the air intake grilles in front
of the windshield are not blocked (by
leaves or snow, for example).
On humid days, do not blow cold air
on the windshield. The windshield could
fog up because of the difference in air
temperature on the inside and outside
of the windshield.
Keep the area under the front seats
clear to allow air to circulate through-
out the vehicle.
On cold days, set the fan speed selec-
tor to adjust the fan speed high for a
minute to help clear the intake ducts
of snow or moisture. This can reduce
the amount of fogging on the windows.
When driving on dusty roads, close all
windows. If dust thrown up by the ve-
hicle is still drawn into the vehicle after
closing the windows, it is recommended
that the air intake selector be set to
FRESH and the fan speed selector to
any setting except “OFF”.
—Air flow selector settings—Operating tips

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If following another vehicle on a dusty
road, or driving in windy and dusty
conditions, it is recommended that the
air intake selector be temporarily set to
RECIRCULATE, which will close off the
outside passage and prevent outside
air and dust from entering the vehicle
interior.
Heating
For best results, set controls to:
For automatic operation—
Press in the “AUTO” button.
Temperature— To the desired
temperature
Air intake—FRESH (outside air)
Air conditioning—OFF
For manual operation—
Fan speed— To the desired fan speed
Temperature— Towards high temperature
Air intake—FRESH (outside air)
Air flow—FLOOR
Air conditioning—OFF
For quick heating, select recirculated
air for a few minutes. To keep the
windows from fogging, select fresh af-
ter the vehicle interior has been
warmed.
Press the “A/C” button on for dehumidi-
fied heating.
Choose floor/windshield air flow to heat
the vehicle interior while defrosting or
defogging the windshield.
Air conditioning
For best results, set controls to:
For automatic operation—
Press in the “AUTO” button.
Temperature— To the desired
temperature
Air intake—FRESH (outside air)
Air conditioning—ON
For manual operation—
Fan speed— To the desired fan speed
Temperature— Towards low temperature
Air intake—FRESH (outside air)
Air flow—PANEL
Air conditioning—ON
For quick cooling, select recirculated
air for a few minutes.
Ventilation
For best results, set controls to:
For automatic operation—
Press in the “AUTO” button.
Temperature— To w a r d s low temperature
Air intake—FRESH (outside air)
Air conditioning—OFF
For manual operation—
Fan speed— To the desired fan speed
Temperature— To w a r d s low temperature
Air intake—FRESH (outside air)
Air flow—PANEL
Air conditioning—OFF

03 SIENNA_U (L/O 0207)
2012003 MY SIENNA (OM45410U)
1. Fan speed selector (front)
2. Fan speed selector (rear)
3. Temperature selector
4. Air flow selector
Rear manual air conditioning system—
—Controls

03 SIENNA_U (L/O 0207)
2022003 MY SIENNA (OM45410U)
Fan speed selector (front)
To turn the rear air conditioning system
on/off and adjust the fan speed.
To turn the “REAR” position—You can op-
erate the rear air conditioning system by
the rear controller.
Turn the knob to adjust the fan speed—to
the right to increase, to the left to de-
crease. To turn the knob to “OFF” turns
off the rear air conditioning system and
the system cannot be operated by the
rear controller.
Fan speed selector (rear)
When the front fan speed selector is in
“REAR”, you can operate it.
Turn the knob to adjust the fan speed—to
the right to increase, to the left to de-
crease.
Temperature selector
Turn the knob to adjust the tempera-
ture—to the right to warm, to the “A/C”
position to cool.
Air flow selector
Turn the knob to select the vents used for
air flow.1. “A/C”— Air flows only from the roof
panel vents.
This setting does not control air tem-
perature. It is only for blowing air con-
ditioned cool air.
2. Except “A/C”— Air flows only from the
floor vents.
This controls the air temperature. It is
for blowing air conditioned cool air and
warm air.
—Air flow selector settings

03 SIENNA_U (L/O 0207)
2032003 MY SIENNA (OM45410U)
1. Fan position selector
2. Fan speed selector
3. Temperature selector
Rear automatic air conditioning system—
—Controls

03 SIENNA_U (L/O 0207)
2042003 MY SIENNA (OM45410U)
Fan position selector
“OFF”—You can turn off the rear air con-
ditioning.
“REAR”—You can operate the rear air
conditioning system by the rear controller.
“AUTO”—You can adjust the temperature
and fan speed of the front and rear air
conditioning systems simultaneously by
using the front air conditioning switches.
Fan speed selector
When the front fan position selector is in
“REAR”, you can operate it.
Turn the knob to adjust the fan speed—to
the right to increase, to the left to de-
crease.
To turn the knob to the “AUTO”—In the
automatic operation mode, the rear air
conditioning selects the most suitable fan
speed and air flow according to the tem-
perature.Temperature selector
Turn the knob to adjust the tempera-
ture—to the right to warm, to the left to
cool.
Air flow from the roof panel vents and/or
floor vents is automatically adjusted ac-
cording to the temperature when both au-
tomatic and manual modes are on.
The floor vents provide only cool air.
The roof panel vents provide warm air and
cool air.
Open
Close
If air flow control is not satisfactory, check
the roof vents. The roof vents may be
opened or closed as shown.
Roof vents

03 SIENNA_U (L/O 0207)
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The digital clock indicates the time.
The key must be in the “ACC” or “ON”
position.
To reset the hour: Push the “H” button.
To reset the minutes: Push the “M” button.
If the electrical power source has been
disconnected from the clock, the time dis-
play will automatically be set to 1:00 (one
o’clock).
When the instrument panel lights are
turned on, the brightness of the time in-
dication will be reduced.The outside temperature display indi-
cates the outside air temperature when
you push the “OUT SIDE TEMP” button.
The key must be in the “ON” position.
Pushing the button once again will turn off
the display.
When the air conditioning system is on,
pushing the button once indicates the out-
side temperature and a second time
changes the display back to the air condi-
tioning temperature.Cigarette lighter and front ashtray
Rear ashtray (for second seats)
ClockOutside temperature gauge Cigarette lighter and ashtrays