2019 NISSAN ALTIMA air condition

∙When parking, set the heater and air
conditioner controls to turn off air re-
circulation to allow fresh air into the
passenger compartment. This should
help reduce odors inside the vehicle.
CONTROLS
Fan speed control dial
Thefan speed control dial turns the
fan on and off, and controls fan speed.
Air flow control buttons
The air flow control buttons allow you to
select the air flow outlets.
— Air flows from center and side
vents.
— Air flows from center and sidevents and foot outlets.
— Air flows mainly from footoutlets.
— Air flows from defroster outletsand foot outlets.
— Air flows mainly from defrosteroutlets.
Temperature control dial
The temperature control dial allows you to
adjust the temperature of the outlet air. To
lower the temperature, turn the dial to the
lef t. To increase the temperature, turn the
dial to the right.
Turn the dial to the MAX A/C position for
maximum cooling. Air will flow from center
and side vents.
Air recirculation button
On position (Indicator light on):
Interior air is recirculated inside the vehicle.
Press the
button to the on position
when:
∙ driving on a dusty road.
∙ to prevent traffic fumes from entering passenger compartment.
∙ for maximum cooling when using the air conditioner.
Off position (Indicator light off ):
Outside air is drawn into the passenger
compartment and distributed through the
selected outlet.
Use the off position for normal heater or air
conditioner operation.
A/C (air conditioner) button
Start the engine, turn thefan speed
control dial to the desired position and
press the
button to turn on the air
conditioner. To turn off the air conditioner,
press the
button again.
The air conditioner cooling function op-
erates only when the engine is running.
Rear window and outside mirror
(if so equipped) defroster switch
For additional information, refer to “Rear
window and outside mirror (if so equipped)
defroster switch” in the “Instruments and
controls” section of this manual.
Heated seat switches (if so
equipped)
For additional information, refer to “Heated
seat switches” in the “Instruments and con-
trols” section of this manual.
HEATER OPERATION
Heating
This mode is used to direct heated air to
the foot outlets. Some air also flows from
the defrost outlets and the side vent out-
lets.
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1. Press thebutton to the off posi-
tion for normal heating.
2. Press the
air flow control button.
3. Turn the
fan speed control dial to
the desired position.
4. Turn the temperature control dial to the desired position between the
middle and the hot position.
Ventilation
This mode directs outside air to the side
and center vents.
1. Press the
button to the off posi-
tion.
2. Press the
air flow control button.
3. Turn the
fan speed control dial to
the desired position.
4. Turn the temperature control dial to the desired position.
Defrosting or defogging
This mode directs the air to the defrost
outlets to defrost/defog the windows.
1. Press the defrost/defog button
.
2. Turn the
fan speed control dial to
the desired position.
3. Turn the temperature control dial to the desired position between the
middle and the hot position.
∙ To quickly remove ice or fog from the windows, turn the
fan speed con-
trol dial to the highest setting and the
temperature control to the full HOT po-
sition.
∙ When the
position is selected, the
air conditioner automatically turns on if
the outside temperature is more than
36°F (2°C). This dehumidifies the air
which helps defog the windshield.
The
mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment to further im-
prove the defogging performance. The
recirculation mode cannot be activated
in the
position.
Bi-level heating
The bi-level mode directs warmed air to
the side and center vents and to the front
and rear floor outlets.
1. Press the
button to the off posi-
tion.
2. Press the
air flow control button.
3. Turn the
fan speed control dial to
the desired position.
4. Turn the temperature control dial to the desired position.
Heating and defogging
This mode heats the interior and defogs
the windshield.
1. Press the
air flow control button.
2. Turn the
fan speed control dial to
the desired position.
3. Turn the temperature control dial to the desired position between the
middle and the hot position.
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∙ When theposition is selected, the
air conditioner automatically turns on if
the outside temperature is more than
36°F (2°C). This dehumidifies the air
which helps defog the windshield.
The
mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment to further im-
prove the defogging performance.
Operating tips
Clear snow and ice from the wiper blades
and air inlet in front of the windshield.
This improves heater operation.
AIR CONDITIONER OPERATION
Start the engine, turn thefan speed
control dial to the desired position, and
press the
button to activate the air
conditioner. When the air conditioner is on,
cooling and dehumidif ying functions are
added to the heater operation.
The air conditioner cooling function op-
erates only when the engine is running.
Cooling
This mode is used to cool and dehumidif y
the air. 1. Press the
button to the off posi-
tion.
2. Press the
air flow control button.
3. Turn the
fan speed control dial to
the desired position.
4. Press the A/C button. The indicator light comes on.
5. Turn the temperature control dial to the desired position.
∙ For quick cooling when the outside temperature is high, press the
button to the ON position. Be sure to
return the
to the off position for
normal cooling. MAX A/C may be used
for quick cooling.
Dehumidified heating
This mode is used to heat and dehumidif y
the air.
1. Press the
button to the off posi-
tion.
2. Press the
air flow control button.
3. Turn the
fan speed control dial to
the desired position. 4. Press the A/C (air conditioner) button.
The indicator light comes on.
5. Turn the temperature control dial to the desired position.
Dehumidified defogging
This mode is used to defog the windows
and dehumidif y the air.
1. Press the
air flow control button.
2. Turn the
fan speed control dial to
the desired position.
∙ When the
orare selected,
the air conditioner automatically turns
on if the outside temperature is more
than 36°F (2°C). This dehumidifies the air
which helps defog the windshield.
The
mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment to further im-
prove the defogging performance.
3. Turn the temperature control dial to the desired position.
Operating tips
∙ Keep the windows closed while the airconditioner is in operation.
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∙ Af ter parking in the sun, drive for 2 or3 minutes with the windows open to
vent hot air from the passenger com-
partment. Then, close the windows.
This allows the air conditioner to cool
the interior more quickly.
∙ The air conditioning system should be operated for approximately 10 minutes
at least once a month. This helps pre-
vent damage to the system due to lack
of lubrication.
∙ A visible mist may be seen coming from the ventilators in hot, humid conditions
as the air is cooled rapidly. This does not
indicate a malfunction.
∙ If the engine coolant temperature gauge indicates engine coolant tem-
perature over the normal range, turn
the air conditioner off. For additional in-
formation, refer to “If your vehicle over-
heats” in the “In case of emergency”
section of this manual.
∙ When Remote Engine Start (if so equipped) is activated, the manual cli-
mate control system will default to the
last used heating or cooling mode.AIR FLOW CHARTS
The following charts show the button and
dial positions for MAXIMUM AND QUICK
heating, cooling or defrosting. The
air
recirculation button should always be in
the off position for heating and defrost-
ing.
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1. AUTO (automatic) climate controlbutton / temperature control dial
(drivers side)
2. Display screen
3.
Heated seat switches (if so
equipped) 4. SYNC button / temperature control
dial (passenger’s side)
5. A/C (air conditioner) button
6.
Air recirculation button
7.
Air flow control button
8.
Fan speed control buttons 9.
Heated steering wheel switch
(if so equipped)
10.
Rear window and outside
mirror defroster switch
11.
Front defroster button
12. ON-OFF button
WARNING
∙ The air conditioner cooling function
operates only when the engine is
running.
∙ Do not leave children or adults who would normally require the assis-
tance of others alone in your vehicle.
Pets should also not be lef t alone.
They could accidentally injure them-
selves or others through inadvertent
operation of the vehicle. Also, on hot,
sunny days, temperatures in a closed
vehicle could quickly become high
enough to cause severe or possibly
fatal injuries to people or animals.
∙ Do not use the recirculation mode for long periods as it may cause the inte-
rior air to become stale and the win-
dows to fog up.
LHA4784
HEATER AND AIR CONDITIONER
(automatic) (if so equipped)
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Start the engine and operate the controls
to activate the air conditioner.
NOTE:∙ Odors from inside and outside the ve-
hicle can build up in the air condi-
tioner unit. Odor can enter the pas-
senger compartment through the
vents.
∙ When parking, set the heater and air
conditioner controls to turn off air re-
circulation to allow fresh air into the
passenger compartment. This should
help reduce odors inside the vehicle.
AUTOMATIC OPERATION
Cooling and/or dehumidified
heating (AUTO)
This mode may be used all year round as
the system automatically works to keep a
constant temperature. Air flow distribution,
air intake control, and fan speed are also
controlled automatically.
1. Press the AUTO button on.
2. Turn the temperature control dial to the lef t or right to set the desired tem-
perature. ∙ Adjust the temperature display to
about 75°F (24°C) for normal operation.
∙ The temperature of the passenger compartment will be maintained auto-
matically. Air flow distribution, air intake
control and fan speed are also con-
trolled automatically.
∙ A visible mist may be seen coming from the vents in hot, humid conditions as
the air is cooled rapidly. This does not
indicate a malfunction.
3. You can individually set driver’s and front passenger’s side temperature us-
ing each temperature control dial. To
synchronize the driver’s and front pas-
senger’s temperature settings, press
the SYNC button.
Heating (A/C OFF)
The air conditioner does not activate. When
you need to heat only, use this mode.
1. Press the AUTO button.
2. Turn the temperature control dial to set the desired temperature.
∙ The temperature of the passenger compartment will be maintained auto-
matically. Air flow distribution and fan
speed are also controlled automatically. ∙ Do not set the temperature lower than
the outside air temperature. Otherwise,
the system may not work properly.
∙ Not recommended if windows fog up.
Dehumidified defrosting or
defogging
1. Press thefront defroster button
on.
2. Turn the temperature control dial to set the desired temperature.
∙ To quickly remove ice from the outside of the windows, use the
fan speed
control buttons to set the fan speed to
maximum.
∙ As soon as possible af ter the wind- shield is clean, press the AUTO button to
return to the automatic mode.
∙ When the
front defroster button is
pressed, the air conditioner will auto-
matically be turned on at outside tem-
peratures above 36°F (2°C). The air recir-
culate mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment to further im-
prove the defogging performance.
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Remote Engine Start with
Intelligent Climate Control (if so
equipped)
Vehicles equipped with automatic climate
controls and Remote Engine Start function
may go into automatic heating or cooling
mode when Remote Engine Start is acti-
vated depending on outside and cabin
temperatures. During this period, the cli-
mate control display and buttons will be
inoperable until the ignition switch is
turned on. In Remote Engine Start defrost-
ing mode, the rear window defroster and
heated steering wheel (if so equipped) may
be activated automatically.
MANUAL OPERATION
Fan speed control buttons
Press thefan speed control buttons
to manually control the fan speed.
Press the AUTO button to return to auto-
matic control of the fan speed.
Temperature control dial
The temperature control dial allows you to
adjust the temperature of the outlet air. To
lower the temperature, turn the dial to the
lef t. To increase the temperature, turn the dial to the right. Temperature can be ad-
justed on the driver’s and passenger’s side.
Air recirculation
Press theair recirculation button to
recirculate interior air inside the vehicle.
The
indicator light on the button will
come on.
The air recirculation cannot be activated
when the air conditioner is in the
front defrosting mode.
When the outside temperature exceeds
70°F (21°C), the air conditioning system may
default to air recirculation mode automati-
cally to reduce overall power consumption.
To exit air recirculation mode, deselect the
air recirculation button (indicator light will
turn off ) to enter fresh air mode.
Automatic intake air control
In the AUTO mode, the intake air will be
controlled automatically. To manually con-
trol the intake air, press the
air recir-
culation button. To return to the automatic
control mode, press and hold the
air
recirculation button for about 2 seconds.
The indicator light will flash twice, and then
the intake air will be controlled automati-
cally.
A/C (air conditioner) button
Start the engine, press thefan speed
control buttons to the desired position and
press the
button to turn on the air
conditioner. To turn off the air conditioner,
press the
button again.
The air conditioner cooling function op-
erates only when the engine is running.
Air flow control
Pressing thebutton manually con-
trols air flow and selects the air outlet:
— Air flows from center and side
vents.
— Air flows from center and sidevents and foot outlets.
— Air flows mainly from footoutlets.
— Air flows from defroster andfoot outlets.
Synchronize climate settings
Press the SYNC button to synchronize cli-
mate settings. The sync indicator will turn
on.
Pressing SYNC will synchronize driver’s and
front passenger’s climate settings.
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∙ When the climate system is in auto-matic operation and the engine coolant
temperature and outside air tempera-
ture are low, the air flow outlet may de-
fault to defroster mode for a maximum
of 2 minutes 30 seconds. This is not a
malfunction. Af ter the engine coolant
temperature warms up, the air flow out-
let will return to foot mode and opera-
tion will continue normally.
∙ When the outside and interior cabin temperatures are moderate to high, the
intake setting may default to turn off air
recirculation to allow fresh air into the
passenger compartment. You may no-
tice air flow from the foot mode, bi-level
mode, or side demist vent outlets for a
maximum of 15 seconds. This may oc-
cur when the previous climate setting
was turned off. This is not a malfunction.
Af ter the initial warm air is expelled, the
intake will return to automatic control,
the air flow outlet will return to previous
settings, and operation will continue
normally. To exit, press any climate con-
trol button. ∙ Keep the moonroof (if so equipped)
closed while the air conditioner is in op-
eration.
∙ If you feel that the air flow mode you have selected and the outlets the air is
coming out do not match, select
the
mode.
∙ When you change the air flow mode, you may feel air flow from the foot out-
lets for just a moment. This is not a
malfunction. The air conditioner system in your NISSAN
vehicle is charged with a refrigerant de-
signed with the environment in mind.
This refrigerant does not harm the
earth’s ozone layer.
Special charging equipment and lubricant
is required when servicing your NISSAN air
conditioner. Using improper refrigerants or
lubricants will cause severe damage to
your air conditioner system. For additional
information, refer to “Air conditioner sys-
tem refrigerant and oil recommendations”
in the “Technical and consumer informa-
tion” section of this manual.
It is recommended that you visit a NISSAN
dealer to service your “environmentally
friendly” air conditioner system.
WARNING
The air conditioner system contains re-
frigerant under high pressure. To avoid
personal injury, any air conditioner ser-
vice should be done only by an experi-
enced technician with proper equipment.
SERVICING AIR CONDITIONER
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