2008 TOYOTA 4RUNNER Owners Manual

293
1. Fan speed selector
2. Temperature selector (at the independent mode: for driver)
(at the linked mode: for driver and
front passenger)
3. AUTO" button
4. DUAL" button
5. Temperature selector (for front passenger)
6. Air flow selector
7. Air intake selector
8. A/C" button
9. OFF" button
Controls (with DUAL" button)
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294
AUTO" button
For automatic operation of the air condi-
tioning, push 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 on−off of
the air conditioning according to the tem-
perature.
When you push the AUTO" button with
the air intake mode at FRESH, internal
circulation may be applied for maximum
cooling.
You may use manual controls if you want
to select your own settings.
Fan speed selector
Select the mode button you desire to ad-
just the fan speed and push it. An indica-
tor light will illuminate to show which fan
speed mode is being selected.
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, push the 
"
side, to decrease it, push the  " side.
LO" appears when you adjust to maxi-
mum cooling, and HI" appears when you
adjust to maximum warming.
DUAL" button
This button is used to set the tempera-
tures independently for the driver ’s seat
and front passenger seat.
Pushing the button changes the mode
from independent and linked.
Independent mode: Temperatures can be
set independently for the driver ’s seat and
front passenger ’s seat. An indicator light
will illuminated to show that the indepen-
dent mode has been selected.
Linked mode: The same temperature is
set for the driver’s seat and front passen-
ger ’s seat.
When the temperature for the front pas-
senger ’s seat is changed in linked mode,
the mode is changed automatically to in-
dependent mode.
OFF" button
Push the OFF" button to turn off the air
conditioning system.
CY18014
Air flow selector
Push one of the buttons to select the
vents used for air flow. An indicator light
will illuminate to show which air flow
mode is being selected.
In automatic operation, you do not have
to select the air flow unless you desire
another air flow mode.
1. Panel Air flows from the instrument
panel vents and rear vents.
2. Bi−level Air flows from both the floor
vents, the instrument panel vents and
rear vents.
3. Floor Air flows mainly from the floor
vents.

295
4. Floor/WindshieldAir flows mainly
from the floor vents and windshield
vents and fan speed may increase in
order to clean up the front view.
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 in-
take selector button once again.
5. Windshield Air flows mainly from the
windshield vents and fan speed may
increase in order to clean up 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.
It is not possible to return to RECIR-
CULATE in this mode.
For details about air flow selector settings,
see Air flow selector settings" described
below.
CY18004
Air intake selector
Push the button to select the air source.
An indicator light will illuminate to show
which the air source is being selected. 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.
For example, when the ambient tempera-
ture is low, the air intake mode may
change automatically to FRESH. This is
not a malfunction. If the ambient temperature is low when
the engine switch is turned to the ON"
position, the air intake mode is always set
to FRESH even though the previous mode
was RECIRCULATE.
A/C" button
To turn on the air conditioning, push the
A/C" button. The A/C" button indicator
will come on. To turn the air conditioning
off, push 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 your Toyota dealer for service.

296
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
CY18015y
Operating tips

297

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 as follows:
For automatic operation
Press in the AUTO" button.
Temperature To the desired
temperature
Air intakeFRESH (outside air)
Air conditioningOFF
For manual operation
Fan speed To the desired fan speed
Temperature To w a r d s WARM
Air intakeFRESH (outside air)
Air flowFLOOR
Air conditioningOFF
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 war-
med.
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 as follows:
For automatic operation
Press in the AUTO" button.
Temperature To the desired
temperature
Air intakeFRESH (outside air)
Air conditioningON
For manual operation
Fan speed To the desired fan speed
Temperature To w a r d s COLD
Air intakeFRESH (outside air)
Air flowPANEL
Air conditioningON
For quick cooling, select recirculated
air for a few minutes.

298
Ventilation
For best results, set controls as follows:
For automatic operationPress in the AUTO" button.
Temperature Towards low temperature
Air intakeFRESH (outside air)
Air conditioningOFF
For manual operation
Fan speed To the desired fan speed
Temperature To w a r d s COLD
Air intakeFRESH (outside air)
Air flowPANEL
Air conditioningOFF
Defogging and defrosting
The inside of the windshield
For best results, set controls as follows:
For automatic operation
Temperature To w a r d s high temperature
to heat; low temperature
to cool
Air intakeFRESH (outside air)
Air flowWINDSHIELD
For manual operation
Fan speed To the desired fan speed
Temperature To w a r d s high temperature
to heat; low temperature
to cool
Air intakeFRESH (outside air)
Air flowWINDSHIELD
Pressing the windshield air flow button
turns on the defogging function with the
purpose of clearing the front view.
When pressing the windshield air flow but-
ton, the air intake selects FRESH auto-
matically. This is to clean up the front
view more quickly.
It is not possible to return to RECIRCU-
LATE in this mode. 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 windshieldthe difference be-
tween the outside and inside tempera-
tures could make the fogging worse.
The outside of the windshield
For best results, set controls as follows:
For automatic operation
Temperature Towards high temperature
Air intakeFRESH (outside air)
Air flowWINDSHIELD
For manual operation
Fan speed To the desired fan speed
Temperature Towards high temperature
Air intakeFRESH (outside air)
Air flowWINDSHIELD

299
Pressing the windshield air flow button
turns on the defogging function with the
purpose of clearing the front view.
When pressing the windshield air flow but-
ton, the air intake selects FRESH auto-
matically. This is to clean up the front
view more quickly.
It is not possible to return to RECIRCU-
LATE in this mode.
Press the A/C" button for dehumidified
heating or cooling. This setting clears the
front view more quickly.
To heat the vehicle interior while de-
frosting the windshield, choose
floor/windshield air flow.
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Center vents
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Side vents
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Rear vents
If air flow control is not satisfactory, check
the instrument panel and rear vents. The
instrument panel and rear vents may be
opened or closed as shown.
Instrument panel and rear
vents

300
CY72020
The air conditioning filter information
label is placed on the upper right side
of the glove box as shown and indi-
cates that a filter has been installed.
The air conditioning filter prevents dust
from entering the vehicle through the air
conditioning vent.
CY72003
The air conditioning filter is behind the
glove box.The air conditioning filter may clog af-
ter long use. The filter may need to be
replaced if the air flow of the air condi-
tioning and heater experiences extreme
reductions in operating efficiency, or if
the windows begin to fog up easily.
To maintain the air conditioning efficiency,
inspect and replace the air conditioning
filter according to the maintenance
schedule. In dusty areas or areas with
heavy traffic flow, such as inner city or
desert areas, early replacement may be
required. (For scheduled maintenance
information, please refer to the Scheduled
Maintenance Guide" or Owner ’s Manual
Supplement".)
Air conditioning filter
Checking and replacing the
air conditioning filter