2008 TOYOTA SIENNA Owners Manual

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Fan speed selector (front)
This selector knob is used to turn the rear
air conditioning system on/off and adjust
the fan speed.
In the “REAR” position, you can operate
the system by the rear controllers.
Turn the knob to adjust the fan speed—to
the right to increase, to the left to de-
crease.
Turning the knob to the “OFF” position
turns the system off and it cannot be
operated by the rear controllers.
Fan speed selector (rear)
When the front fan speed selector is in
the “REAR” position, you can operate the
rear 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 tempera-
ture—to the right to warm, to the left to
cool.
Air flow selectors
Push the button to select the vents used
for air flow.1. Panel— Air flows from the roof panel
vents.
2. Bilevel— Air flows from both the roof
panel vents and floor vent.
3. Floor— Air flows from the floor vent.
—Air flow selector settings

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1. “AUTO” button
2. Air flow selectors
3. Temperature selector (rear)
4. Fan speed selectors
5. “OFF” button
6. “REAR” button
7. Temperature selector (front)
Rear automatic air conditioning system—
—Controls

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“AUTO” button
For automatic operation of the rear air
conditioning, press the “AUTO” button. An
indicator light will illuminate to show that
the automatic operation mode has been
selected.
In the automatic operation mode, the air
conditioning selects the most suitable fan
speed and air flow according to the tem-
perature.
You may use manual controls if you want
to select your own settings.
Fan speed selectors
Push the button to select the fan speed
mode.
In the automatic operation mode, the fan
speed is adjusted automatically unless you
desire another fan speed mode.Temperature selectors
To increase the temperature, press the
“
 ” side. To decrease it, press the “ ”
side.
“LO” appears when you adjust to maxi-
mum cooling, and “HI” appears when you
adjust to maximum warming.
When “SYNC” appears on the rear tem-
perature display, rear controls cannot be
used. Use the controls on the front control
panel. To cancel this function, push the
“SYNC” button. For details about the
“SYNC” button, see “Front automatic air
conditioning system” on page 354 in this
Section.
The temperature display changes between
“  C” and “ F” when the unit of the outside
temperature display is changed. (For de-
tails, see “Multi −information display” on
page 370 in Section 1 −10.)
“REAR” button
To turn on the rear air conditioning system
using the front control panel, push the
button. To turn it off, push the button
again.
“OFF” button
Push the button to turn off the rear air
conditioning system.
Air flow selectors
Push the button to select the vents used
for air flow. 1. Panel— Air flows from the roof panel
vents.
2. Bilevel— Air flows from both the roof
panel vents and floor vent.
3. Floor— Air flows from the floor vent.

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The air conditioning filter information
label is placed on the right side of the
glove box as shown and indicates that
a filter has been installed.
The air conditioning filter prevents dust
from entering the vehicle through the air
conditioning vent.The air conditioning filter is behind the
glove box.
—Air flow selector settings Air conditioning filter—

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The air conditioning filter may clog af-
ter long use. The filter may need to be
cleaned or replaced if the air flow of
the air conditioning and heater experi-
ences extreme reductions in operating
efficiency, or if the windows begin to
fog up easily.
To maintain the air conditioning efficiency,
inspect, clean and replace the air condi-
tioning filter according to the maintenance
schedule. In dusty areas or areas with
heavy traffic flow, such as inner city or
desert areas, more frequent cleaning or
early replacement may be required. (For
scheduled maintenance information, please
refer to the “Scheduled Maintenance
Guide” or “Owner ’s Manual Supplement”.)
1. Open the glove box, and slide offthe damper as shown.2. Push in each side of the glove boxto disconnect the claws.
—Checking, cleaning and
replacing the air conditioning
filter

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3. Remove the filter case from the filteroutlet as shown in the illustration.4. Remove the filter from the filtercase.
If it is dirty, it should be cleaned or re-
placed.To clean the filter, blow compressed air
through it from the bottom.
Hold the air gun 50 mm (2 in.) from the
filter and blow for approximately 2 minutes
at 500 kPa (5.0 kgf/cm
2 or bar, 72 psi).
If it is not available, have the filter
cleaned by your Toyota dealer.

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5. Install the filter to the filter case.
Position the filter and the case so that the
“ ↑ UP” mark is pointing up.6. Insert the filter case in the filter out-
let, keeping the arrow pointing up.
NOTICE
To prevent damage to the air condi-
tioning system, do the following.
When using the air conditioning
system, make sure that a filter is
always installed.
 When cleaning the filter, do not
clean the filter with water.

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