2018 NISSAN ALTIMA cooling

Thebutton will be on the NISSAN In-
telligent Key® if the vehicle has Remote En-
gine Start. This feature allows the engine to
start from outside the vehicle.
The following features may be affected
when Remote Engine Start is used:
∙ Vehicles with a manual climate control system will default to the last used
heating or cooling mode. ∙ Vehicles with an automatic climate
control system will default to either a
heating or cooling mode depending on
outside and cabin temperatures. For
additional information, refer to “Remote
Engine Start with Intelligent Climate
Control” in the “Monitor, climate, audio,
phone and voice recognition systems”
section of the manual.
Laws in some local communities may re-
strict the use of remote starters. For ex-
ample, some laws require a person using
Remote Engine Start to have the vehicle in
view. Check local regulations for any re-
quirements.
Other conditions may affect the function of
the Remote Engine Start feature. For addi-
tional information, refer to “Conditions the
Remote Engine Start will not work” in this
section.
Other conditions can affect the perfor-
mance of the Intelligent Key transmitter.
For additional information, refer to “NISSAN
Intelligent Key®” in this section.
REMOTE ENGINE START
OPERATING RANGE
WARNING
To help avoid risk of injury or death
through unintended operation of the
vehicle and/or its systems, including
entrapment in windows or inadvertent
door lock activation, do not leave chil-
dren, people who require the assistance
of others or pets unattended in your ve-
hicle. Additionally, the temperature in-
side a closed vehicle on a warm day can
quickly become high enough to cause a
significant risk of injury or death to
people and pets.
CAUTION
When the Intelligent Key battery is dis-
charged or other strong radio wave
sources are present near the operating
location, the Intelligent Key operating
range becomes narrower, and the Intel-
ligent Key may not function properly.
The Remote Engine Start function can only
be used when the Intelligent Key is within
the specified operating range from the ve-
hicle.
LPD2078
REMOTE ENGINE START (if so
equipped)
3-20Pre-driving checks and adjustments

1.Fan speed control dial/ A/C
(air conditioner) button
2. Air flow control buttons
3. Temperature control dial / MAX A/C
button
4.
Air recirculation button 5.
Rear window and outside mir-
ror (if so equipped) defroster
switch
6.
Front windshield defroster
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.
NOTE: ∙ Odors from inside and outside the ve- hicle can build up in the air conditioner
unit. Odor can enter the passenger
compartment through the vents.
LHA2243
HEATER AND AIR CONDITIONER
(manual) (if so equipped)
Monitor, climate, audio, phone and voice recognition systems4-13

∙ When parking, set the heater and airconditioner controls to turn off air recir-
culation to allow fresh air into the pas-
senger compartment. This should help
reduce odors inside the vehicle.
CONTROLS
Fan control dial
Thefan 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.
MAX
A/C — Air flows from center and side
vents with maximum cooling.
— Air flows from center and sidevents.
— Air flows from center and sidevents and foot outlets.
— Air flows mainly from footoutlets.
— Air flows from defroster out-lets and foot outlets.
— Air flows mainly from de-froster outlets.
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.
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.
Air conditioner button
Start the engine, turn thefan control
dial to the desired position and press
the
button to turn on the air condi-
tioner. 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.
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.
1. Press the
button to the OFF posi-
tion for normal heating.
2. Press the
air flow control button.
4-14Monitor, climate, audio, phone and voice recognition systems

AIR CONDITIONER OPERATION
Start the engine, turn thefan control
dial to the desired position, and press
the
button to activate the air condi-
tioner. When the air conditioner is on, cool-
ing 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 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 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.
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 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.
∙ Af ter parking in the sun, drive for 2 or 3 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 prevent damage to the
system due to lack of lubrication.
4-16Monitor, climate, audio, phone and voice recognition systems

∙ A visible mist may be seen coming fromthe 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
information, refer to “If your vehicle
overheats” in the “In case of emer-
gency ” section of this manual.
AIR FLOW CHARTS
The following charts show the button and
dial positions for MAXIMUM AND QUICK
heating, cooling or defrosting. The air re-
circulation button should always be in
the OFF position for heating and defrost-
ing.
LHA3787
Monitor, climate, audio, phone and voice recognition systems4-17

1.Front defroster button
2. Temperature control dial (driver’s
side)/AUTO (automatic) climate
control button
3. Display screen 4. Temperature control dial (passen-
ger’s side)/DUAL (passenger’s side
temperature control) button
5.
Fresh air intake button
6.
Air recirculation button
7. A/C air conditioner button 8. MODE (manual air flow control)
button
9.
fan speed control buttons
10. ON-OFF button
11.
Rear window and outside mir-
ror (if so equipped) defroster
switch
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.
Start the engine and operate the controls
to activate the air conditioner.
LHA2244
HEATER AND AIR CONDITIONER
(automatic) (if so equipped)
4-20Monitor, climate, audio, phone and voice recognition systems

NOTE:∙ Odors from inside and outside the ve- hicle can build up in the air conditioner
unit. Odor can enter the passenger
compartment through the vents.
∙ When parking, set the heater and air conditioner controls to turn off air recir-
culation to allow fresh air into the pas-
senger 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
turn off the passenger’s side tempera-
ture control, press the DUAL 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.
Monitor, climate, audio, phone and voice recognition systems4-21

∙ When thefront 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.
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
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 de-
fault to air recirculation mode automatically
to reduce overall power consumption. To exit
air recirculation mode, select the fresh air
intake button to enter fresh air mode.
Fresh air intake
Press thefresh air intake button to
draw outside air into the passenger com-
partment.
Air conditioner button
Start the engine, press thefan control
buttons to the desired position and press
the
button to turn on the air condi-
tioner. 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 the MODE button 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.
4-22Monitor, climate, audio, phone and voice recognition systems