2005 TOYOTA SIENNA Owners Manual

05 SIENNA_U (L/O 0409)
305
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Air conditioning system
Front manual air conditioning systemControls 306
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Air flow selector settings 309
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Operating tips 309
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Front automatic air conditioning system Controls 312
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Air flow selector settings 315
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Operating tips 315
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Side vents 317
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Rear manual air conditioning system Controls 318
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Air flow selector settings 319
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Rear automatic air conditioning system
Controls 320
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Air flow selector settings 322
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Air conditioning filter 322
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SECTION 1 9

05 SIENNA_U (L/O 0409)
306
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. “A/C” button
2. Air intake selector
3. Air flow selector
4. Temperature selector
5. Fan speed selector
Front manual air conditioning system—
—Controls

05 SIENNA_U (L/O 0409)
307
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Fan speed selector
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 temperature—
to the right to warm, to the left to cool.
Air flow selector
Turn the knob to select the vents used for
air flow.1. Panel— Air flows 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.
Turning the air flow selector to the
floor/windshield position turns on the
defogging function with the purpose of
clearing the front view. This position 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 in-
take selector button once again.
Press the “A/C” button for dehumidified
heating or cooling. This setting clears
the front view more quickly.
5. Windshield— Air flows mainly from the
windshield vents.
Turning the air flow selector to the
windshield position turns on the defog-
ging function with the purpose of clear-
ing the front view.
This position 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 in-
take selector button once again.
Press the “A/C” button for dehumidified
heating or cooling. This setting clears
the front view more quickly.
For details about air flow selector settings,
see “—Air flow selector settings” on page
309.

05 SIENNA_U (L/O 0409)
308
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Air intake selector
Press the button to select the air source.1. Recirculate— Recirculates the air inside
the vehicle.
2. Fresh— Draws outside air into the sys-
tem.
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.

05 SIENNA_U (L/O 0409)
309
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
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 to
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

05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
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:
Fan speed— Any setting except “OFF”
Temperature— To w a r d s WARM
(red zone)
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:
Fan speed— Any setting except “OFF”
Temperature— To w a r d s COLD
(blue zone)
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:
Fan speed— Any setting except “OFF”
Temperature— To w a r d s COLD
(blue zone)
Air intake—FRESH (outside air)
Air flow—PANEL
Air conditioning—OFF
Defogging
—The inside of the windshield
For best results, set controls to:
Fan speed— Any setting except “OFF”
Temperature— To w a r d s WARM
(red zone) to heat;
COLD (blue zone) to
cool
Air flow—WINDSHIELD
Turning the air flow selector to the wind-
shield or floor/windshield position turns on
the defogging function with the purpose of
clearing the front view.
When turning the air flow selector to the
windshield or floor/windshield position, the
air intake selects FRESH automatically.
This is to clean up the front view more
quickly.
Press the “A/C” button for dehumidified
heating or cooling. This setting clears the
front view more quickly.
On 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.

05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Defrosting
—The outside of the windshield
For best results, set controls to:Fan speed— Any setting except “OFF”
Temperature— To w a r d s WARM
(red zone)
Air flow—WINDSHIELD
Turning the air flow selector to the wind-
shield or floor/windshield position turns on
the defrosting function with the purpose of
clearing the front view.
When turning the air flow selector to the
windshield or floor/windshield position, the
air intake selects FRESH automatically.
This is to clean up the front view more
quickly.
Press the “A/C” button for dehumidified
heating. This setting clears the front view
more quickly.
To heat the vehicle interior while de-
frosting the windshield, choose
floor/windshield air flow.

05 SIENNA_U (L/O 0409)
312
2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. Temperature selector (“TEMP”)(with “SYNC” button indicator
on—simultaneous setting on driver,
front passenger and rear passenger
sides)
(with “SYNC” button indicator
off—individual setting on driver side
only)
2. Temperature selector (“PASS TEMP”) (individual setting on front passenger
side only)
3. “A/C” button
4. “SYNC” button (with button indicator on—simultaneous
temperature setting )
(with button indicator off—individual
temperature setting)
5. “MODE” button (air flow selector)
6. Windshield air flow button
7. Temperature selector (“REAR TEMP”) (individual setting on rear passenger
side only)
8. Fan speed selector
9. Air intake selector
10. “OFF” button
11. “AUTO” button
Front automatic air conditioning system—
—Controls