TOYOTA HIGHLANDER 2001 Service Repair Manual

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Ventilation
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s COLD
(blue zone)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐOFFDefogging
The inside of the windshield
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s WARM
(red zone) to heat;
COLD (blue zone) to
cool
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
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 wind-
shield or floor/windshield position, the air
intake selects 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.

On humid days, do not blow cold air
on the windshieldÐthe difference be-
tween the outside and inside tempera-
tures could make the fogging worse.Defrosting
The outside of the windshield
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s WARM
(red zone)
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
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 wind-
shield or floor/windshield position, the air
intake selects 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.

To heat the vehicle interior while de-
frosting the windshield, choose
floor/windshield air flow.

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1. Air intake selector
2. MODEº button (air flow selector)
3. Fan speed selector
4. A/Cº button
5. OFFº button
6. Windshield air flow button
7. AUTOº button
8. Temperature selector
Front automatic air conditioning systemÐ
ÐControls

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AUTOº button
For automatic operation of the air condi-
tioning, press the AUTOº 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.
You may use manual controls if you want
to select your own settings.
Fan speed selector
Turn the knob to adjust the fan speedÐto
the right to increase, to the left to de-
crease.
In automatic operation, you do not have
to adjust the fan speed unless you desire
another fan speed mode.
Temperature selector
Turn the knob to adjust the temperatureÐ
to the right to warm, to the left to cool.
OFFº button
Push the button to turn off the air condi-
tioning system.
MODEº button (air flow selector)
Push the MODEº 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. PanelÐAir flows mainly from the
instrument panel vents.
2. Bi- levelÐAir flows from both the floor
vents and the instrument panel vents.
3. FloorÐAir flows mainly from the floor
vents.
4. Floor/WindshieldÐAir flows mainly
from the floor vents and windshield
vents.Windshield air flow button
When this button is pressed, air flows
mainly from the windshield vents and the
FRESH mode is automatically set. This
setting clears the front view more quickly.
If you want to return the setting to
RECIRCULATE mode, press the air intake
selector button once again.
Pressing the button once again returns the
air flow mode to the last one used.
Pressing the windshield air flow button
turns on the defroster- linked air condition-
ing. This is to clean up the front view
more quickly.

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When the A/Cº button is not pressed in,
pressing another air flow button turns off
the air conditioning.
For details about air flow selector settings,
see ÐAir flow selector settingsº de-
scribed below.
Air intake selector
Press the button to select the air source.
1. RecirculateÐRecirculates the air inside
the vehicle.
2. FreshÐDraws outside air into the sys-
tem.
If the engine coolant temperature becomes
extremely high, RECIRCULATE mode will
automatically be selected. This is not a
malfunction. When the engine coolant tem-
perature is lowered, the previous mode
will resume.
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/Cº button
To turn on the air conditioning, press the
A/Cº button. The A/Cº button indicator
will come on. To turn the air conditioning
off, press the button again.
If the A/Cº 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.

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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 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 OFFº.
ÐAir flow selector settingsÐOperating 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 operationÐ
Press in the AUTOº button.
TemperatureÐTo the desired
temperature
Air intakeÐFRESH (outside air)
Air conditioningÐOFF
For manual operationÐ
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s WARM
(to the right)
Air intakeÐFRESH (outside air)
Air flowÐFLOOR
Air conditioningÐOFF

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/Cº 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 operationÐ
Press in the AUTOº button.
TemperatureÐTo the desired
temperature
Air intakeÐFRESH (outside air)
Air conditioningÐON
For manual operationÐ
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s COLD
(to the left)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐON

For quick cooling, select recirculated
air for a few minutes.

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Ventilation
For best results, set controls to:
For automatic operationÐ
Press in the AUTOº button.
TemperatureÐTo w a r d s COLD
(to the left)
Air intakeÐFRESH (outside air)
Air conditioningÐOFF
For manual operationÐ
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s COLD
(to the left)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐOFF
Defogging and defrostingÐ
ÐThe inside of the windshield
For best results, set controls to:
For automatic operationÐ
TemperatureÐTo w a r d s WARM
(to the right) to heat;
COLD (to the left) to
cool
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
For manual operationÐ
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s WARM
(to the right) to heat;
COLD (to the left) to
cool
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
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.
If you want to return the setting to
RECIRCULATE mode, press the air intake
selector button once again.Pressing the windshield button turns on
the defroster- linked air conditioning. This
is to clean up the front view more quickly.
When the A/Cº button is not pressed in,
pressing another air flow button turns off
the air conditioning.

On humid days, do not blow cold air
on the windshieldÐthe difference be-
tween the outside and inside tempera-
tures could make the fogging worse.
ÐThe outside of the windshield
For best results, set controls to:
For automatic operationÐ
TemperatureÐTo w a r d s WARM
(to the right)
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD

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For manual operationÐ
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s WARM
(to the right)
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
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.
If you want to return the setting to
RECIRCULATE mode, press the air intake
selector button once again.
Pressing the windshield button turns on
the defroster- linked air conditioning. This
is to clean up the front view more quickly.
When the A/Cº button is not pressed in,
pressing another air flow button turns off
the air conditioning.

To heat the vehicle interior while de-
frosting the windshield, choose
floor/windshield air flow.
If air flow control is not satisfactory, check
the side vents. The side vents may be
opened or closed as shown.
Side vents

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1. Main switch
Push the switch to turn the rear heater
system on or off.
Turning the fan speed selector to the LOº
or HIº position with the rear heater sys-
tem on illuminates the main switch indica-
tor.
2. Fan speed selector
Turn the knob to adjust the fan speedÐto
the right to increase, to the left to de-
crease.
When the rear heater system is off, the
fan speed selector will not operate.
3. Rear heater vents
Air flows from the vents when the rear
heater system is operating.
CAUTION
Do not place feet near the vents for
long periods as burns may result.
Rear heater system

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The air conditioning filter information
label is placed in 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.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 sched-
ule. 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 Mainte-
nance Guideº or Owner 's Manual Supple-
mentº.)
Air conditioning filterÐÐChecking and replacing the
air conditioning filter