cooling NISSAN SENTRA 2019 Owner´s Manual

Adjust air flow direction by moving the vent
slides.
Open or close the vents by using the dial.
Move the dial toward the
to open the
vents or toward the
to close them.
WARNING
∙The air conditioner cooling function op-
erates 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.
∙ 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.
LHA4299
VENTS HEATER (manual) (if so equipped)
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WARNING
∙The air conditioner cooling function op-
erates 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.
∙ 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.
LHA4403
HEATER AND AIR CONDITIONER
(manual) (if so equipped)
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1.Fan speed control dial / sys-
tem OFF 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
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.
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.
LHA2243
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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.
The air recirculation function does not op-
erate when in the
orair flow
modes.
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, 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.
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.
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.
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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. 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.
∙ 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.
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
button.
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.
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3. Turn thefan speed control dial to
the desired position.
4. Press the
button.
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.
∙ The air conditioner is always on in
mode, regardless of whether the indica-
tor light is on or off.
3. Turn the temperature control dial to the desired position.
Operating tips
∙ Keep the windows and moonroofclosed while the air conditioner is in op-
eration.
∙ 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.
∙ 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
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.
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1. Temperature control buttons (driv-er’s side)
2.
Front defroster button
3.
Rear window and outside
mirror (if so equipped) defroster
switch 4. Display screen
5. MODE (manual air flow control)
button
6.Fresh air intake button
7.
Air recirculation button 8. Temperature control buttons (pas-
senger’s side)
9. DUAL button
10. A/C (air conditioner) button
11.
Fan speed control buttons
12. AUTO (automatic) button
13. 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.
Start the engine and operate the controls
to activate the air conditioner.
LHA2518
HEATER AND AIR CONDITIONER
(automatic) (if so equipped)
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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
and fan speed are also controlled auto-
matically.
1. Press the AUTO button on. (The indica- tor on the button will illuminate and
AUTO will be displayed.)
2. Use the temperature control buttons to set the desired temperature.
∙ 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 and fan
speed are also controlled 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.
NOTE:
Fan speed may vary until the tempera-
ture of the passenger compartment is
achieved. 3. You can individually set driver’s and front passenger’s side temperature us-
ing each set of temperature control
buttons. When the DUAL button or pas-
senger’s side temperature control but-
tons are pressed, the DUAL indicator
will come on. To turn off the passen-
ger’s side temperature 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
button (A/C indicator
will turn off ). 2. Use the temperature control buttons
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 or the sys-
tem may not work properly.
∙ Not recommended if windows fog up.
Dehumidified defrosting or
defogging
1. Press thefront defroster button.
2. Use the temperature control buttons to set the desired temperature.
∙ To quickly remove ice from the outside of the windows, use the fan speed con-
trol dial to set the fan speed to maxi-
mum.
∙ As soon as possible af ter the wind- shield is clean, press the AUTO button to
return to the automatic mode.
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∙ 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.
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
Press the temperature control
buttons
,to set the desired
temperature.
Air recirculation
Press the air recirculation buttonto
recirculate interior air inside the vehicle.
Press the AUTO button to return to auto-
matic mode.
The air recirculation cannot be activated
when the air conditioner is in the
front defrosting mode.
Fresh air intake
Press thefresh air intake button to
draw outside air into the passenger com-
partment.
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 or press and hold
the
fresh air intake button for about
2 seconds. The indicator lights (both air re-
circulation and fresh air intake buttons) will
flash twice and then the intake air will be
controlled automatically.
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 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.
To turn system off
Press the ON-OFF button.
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.
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3.Use Air Conditioning (A/C) at Higher
Vehicle Speeds
∙ Below 40 mph (64 km/h), it is more efficient to open windows to cool the
vehicle due to reduced engine load
∙ Above 40 mph (64 km/h), it is more efficient to use A/C to cool the vehicle
due to increased aerodynamic drag
∙ Recirculating the cool air in the cabin when the A/C is on reduces cooling
load
4. Drive at Economical Speeds and Dis-
tances
∙ Observing the speed limit and not exceeding 60 mph (97 km/h) (where
legally allowed) can improve fuel effi-
ciency due to reduced aerodynamic
drag
∙ Maintaining a safe following distance behind other vehicles reduces un-
necessary braking
∙ Safely monitoring traffic to anticipate changes in speed permits reduced
braking and smooth acceleration
changes
∙ Select a gear range suitable to road conditions 5.
Use Cruise Control
∙ Using cruise control during highway driving helps maintain a steady
speed
∙ Cruise control is particularly effective in providing fuel savings when driving
on flat terrains
6. Plan for the Shortest Route
∙ Utilize a map or navigation system to determine the best route to save
time
7. Avoid Idling
∙ Shutting off your engine when safe for stops exceeding 30–60 seconds
saves fuel and reduces emissions
8. Buy an Automated Pass for Toll
Roads
∙ Automated passes permit drivers to use special lanes to maintain cruis-
ing speed through the toll and avoid
stopping and starting 9.
Winter Warm Up
∙ Limit idling time to minimize impact to fuel economy
∙ Vehicles typically need no more than 30 seconds of idling at start-up to
effectively circulate the engine oil be-
fore driving
∙ Your vehicle will reach its ideal oper- ating temperature more quickly
while driving versus idling
10. Keeping your Vehicle Cool
∙ Park your vehicle in a covered parking area or in the shade whenever pos-
sible
∙ When entering a hot vehicle, opening the windows will help to reduce the
inside temperature faster, resulting in
reduced demand on your A/C sys-
tem
11. ECO Mode
∙ The ECO mode helps to enhance the fuel economy by controlling the en-
gine and Continuously Variable
Transmission (if so equipped) opera-
tion automatically to avoid rapid ac-
celeration.
Starting and driving5-69