2004 NISSAN SENTRA cooling

the parking brake not applied, stop the vehicle
and perform the following:
1. Check the brake fluid level. Add brake fluid
as necessary. See “Brake fluid” in the “Main-
tenance and do-it-yourself” section of this
manual.
2. If the brake fluid level is correct, have the
brake system checked by a NISSAN dealer.
WARNING
cYour vehicle is equipped with an auto-
matic engine cooling fan. It may come
on at any time without warning, even if
the ignition key is in the OFF position
and the engine is not running. To avoid
injury, always disconnect the negative
battery cable before working near the
fan.
cPressing the brake pedal with the en-
gine stopped and/or a low brake fluid
level may increase your stopping dis-
tance and braking will require greater
pedal effort as well as pedal travel.
cIf the brake fluid level is below the
MINIMUM or MIN mark on the brake
fluid reservoir, do not drive until the
brake system has been checked at a
NISSAN dealer.
Charge warning light
If this light comes on while the engine is running,
it may indicate the charging system is not func-
tioning properly. Turn the engine off and check
the generator belt. If the belt is loose, broken,
missing, or if the light remains on, see a NISSAN
dealer immediately.
CAUTION
Do not continue driving if the generator
belt is loose, broken or missing.
Door open warning light
This light comes on when any of the doors are not
closed securely while the ignition key is in the ON
position.
Engine oil pressure warning
light
This light warns of low engine oil pressure. If the
light flickers or comes on during normal driving,
pull off the road in a safe area, stop the engine
immediatelyand call a NISSAN dealer or other
authorized repair shop.
The engine oil pressure warning light is not
designed to indicate a low oil level.Use thedipstick to check the oil level. See “Engine oil” in
the “Maintenance and do-it-yourself” section of
this manual.
CAUTION
Running the engine with the engine oil
pressure warning light on could cause se-
rious damage to the engine almost imme-
diately. Such damage is not covered by
warranty. Turn off the engine as soon as it
is safe to do so.
Low fuel warning light
This light comes on when the fuel level in the fuel
tank is getting low. Refuel as soon as it is conve-
nient, preferably before the fuel gauge reaches E
(Empty) .There will be a small reserve of fuel
in the tank when the fuel gauge needle
reaches E (Empty) .
Low windshield washer fluid
warning light (if so equipped)
This light comes on when the windshield washer
fluid is at a low level. Add windshield washer fluid
as necessary. See “Window washer fluid” in the
“Maintenance and do-it-yourself” section of this
manual.
2-10Instruments and controls
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Adjust air flow direction for the driver’s sides1,
center
s2, and passenger sides3ventilators by
moving the ventilator slide and/or ventilator as-
semblies.
WARNING
cThe air conditioner cooling function op-
erates only when the engine is running.
cOn hot, sunny days, temperatures in a
closed vehicle could quickly become
high enough to cause severe or possi-
bly fatal injuries to people or animals.
Do not leave children or adults who
would normally require the support of
others in your vehicle. Unattended pets
should not be left alone either.
cDo not use the recirculation mode for
long periods as it may cause the interior
air to become stale and the windows to
fog up.
cPositioning of the heater and/or air
conditioner controls should not be
done while driving so full attention may
be given to vehicle operation.
WHA0200
VENTILATORSHEATER AND AIR CONDITIONER
(manual)
4-2Heater, air conditioner and audio systems
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1. Fan control dial
2. Rear window defroster switch (if so
equipped)
3. Air flow control dial
4. Air conditioner button (if so equipped)
5. Air recirculation button (if so equipped)
6. Temperature control dial
CONTROLS
Fan control dial
The fan control dial turns the fan on and off, and
controls fan speed.
Air flow control dial
The air flow control dial allows you to select the
air flow outlets.
— Air flows from center and side
ventilators.
— Air flows from center and side
ventilators and foot outlets.
— Air flows mainly from foot outlets.
— Air flows from defroster outlets
and foot outlets.
— Air flows mainly from defroster
outlets.
The air flow control dial also has intermediate
positions which allow the air flow to be distrib-
uted between two of the icon positions on the air
flow control dial.
Temperature control dial
The temperature control dial allows you to adjust
the temperature of the outlet air.
Air recirculation button (if so
equipped)
NOTE:
The air recirculation feature is available
only on those vehicles equipped with air
conditioning.
ON position (Indicator light on):
Interior air is recirculated inside the vehicle.
Push the
button to the on position when:
cdriving on a dusty road.
cto prevent traffic fumes from entering the
passenger compartment.
cfor maximum cooling when using the air con-
ditioner.
WHA0288
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OFF position (Indicator light off):
Outside air is drawn into the passenger compart-
ment and distributed through the selected outlet.
Use the off position for normal heater or air con-
ditioner operation.
Air conditioner button (if so
equipped)
The button is provided only on vehicles equipped
with an air conditioner.
Start the engine, turn the fan control dial to the
desired (1 - 4) position and push the
button to turn on the air conditioner. The indicator
light comes on when the air conditioner is oper-
ating. To turn off the air conditioner, push
the
button again.
The air conditioner cooling function oper-
ates only when the engine is running.
Rear window defroster switch
For more information about the rear window de-
froster switch, see “Rear window 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.
1. Push the
button (if so equipped) to
the off position for normal heating.
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Turn the temperature control dial to the de-
sired position between the middle and the
hot position.
Ventilation
This mode directs outside air to the side and
center ventilators.
1. Push the
button (if so equipped) to
the off position.
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Turn the temperature control dial to the de-
sired position.
Defrosting or defogging
This mode directs the air to the defrost outlets to
defrost/defog the windows.
1. Turn the air flow control dial to the
position.
2. Turn the fan control dial to the desired posi-
tion.
3. Turn the temperature control dial to the de-
sired position between the middle and the
hot position.
cTo quickly remove ice or fog from the win-
dows, turn the fan control dial to 4 and the
temperature control lever to the full HOT
position.
cWhen the
position is selected, the air
conditioner automatically turns on (however,
the indicator light will not illuminate) if the
outside temperature is more than 36°F
(2°C) . The air conditioning system will con-
tinue to operate until the fan control dial is
turned to OFF or the vehicle is shut off, even
if the air flow control dial is turned to a
position other than the
position. 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
improve the defogging performance.
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Bi-level heating
This mode directs cooler air from the side and
center vents and warmer air from the floor outlets.
When the temperature control dial is moved to
the full hot or full cool position, the air between
the vents and the floor outlets is the same tem-
perature.
1. Push the
button (if so equipped) to
the off position.
2. Turn the air flow control dial to
the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Turn the temperature control dial to the de-
sired position.
Heating and defogging
This mode heats the interior and defogs the wind-
shield.
1. Turn the air flow control dial to the
position.
cWhen the
position is selected,
thefunction automatically cancels.
Outside air is drawn into the passenger
compartment to improve the defogging per-
formance.2. Turn the fan control dial to the desired posi-
tion.
3. Turn the temperature control dial to the de-
sired position between the middle and the
hot position.
cWhen the
position is selected, the air
conditioner automatically turns on (however,
the indicator light will not illuminate) if the
outside temperature is more than 36°F
(2°C) . The air conditioning system will con-
tinue to operate until the fan control dial is
turned to OFF or the vehicle is shut off, even
if the air flow control dial is turned to a
position other than the
position. 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
improve 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 (if
so equipped)
Start the engine, turn the fan control dial to the
desired (1 - 4) position, and push in the
button to activate the air conditioner. When the
air conditioner is on, cooling and dehumidifying
functions are added to the heater operation.
The air conditioner cooling function oper-
ates only when the engine is running.
Cooling
This mode is used to cool and dehumidify the air.
1. Push the
button to the off position.
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Push the
button. The indicator light
comes on.
5. Turn the temperature control dial to the de-
sired position.
cFor quick cooling when the outside tem-
perature is high, push the
button to
the on position (indicator light on) . Be sure
to return the
to the off position for
normal cooling.
Heater, air conditioner and audio systems4-5
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Dehumidified heating
This mode is used to heat and dehumidify the air.
1. Push the
button to the off position.
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Push the
button. The indicator light
comes on.
5. Turn the temperature control dial to the de-
sired position.
Dehumidified defogging
This mode is used to defog the windows and
dehumidify the air.
1. Turn the air flow control dial to the
position.
2. Turn the fan control dial to the desired posi-
tion.
3. Push on the air conditioner button. The indi-
cator light comes on.
When the
,or positions in between
are selected, the air conditioner automatically
turns on (however, the indicator light will not
illuminate) if the outside temperature is more than45°F (7°C) . The air conditioning system will con-
tinue to operate until the vehicle is shut OFF, even
if the air flow control dial is turned to a position
other than the
position. This dehumidifies
the air which helps defog the windshield.
The
mode automatically turns off, allowing
outside air to be drawn into the passenger com-
partment to further improve the defogging perfor-
mance.
4. Turn the temperature control dial to the de-
sired position.
Operating tips
cKeep the windows and sunroof closed while
the air conditioner is in operation.
cAfter parking in the sun, drive for 2 or 3
minutes with the windows open to vent hot
air from the passenger compartment. Then,
close the windows. This allows the air con-
ditioner to cool the interior more quickly.
cThe 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.
cIf the engine coolant temperature
gauge indicates engine coolant tem-
perature over the normal range, turn
the air conditioner off. See “If yourvehicle overheats” in the “In case of
emergency” section of this manual.
AIR FLOW CHARTS
The following charts show the button and dial
positions forMAXIMUM AND QUICKheating,
cooling or defrosting.The air recirculation
button should always be in the OFF posi-
tion for heating and defrosting.
4-6Heater, air conditioner and audio systems
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WARNING
cThe anti-lock brake system is a sophis-
ticated device, but it cannot prevent ac-
cidents resulting from careless or dan-
gerous driving techniques. It can help
maintain vehicle control during braking
on slippery surfaces, but remember that
the stopping distance on slippery sur-
faces will be longer than on normal
surfaces even with the anti-lock brake
system. Stopping distances may also
be longer on rough, gravel or snow cov-
ered roads, or if you are using tire
chains. Tire type and condition may also
affect braking effectiveness. Always
maintain a safe distance from the ve-
hicle in front of you. Ultimately, the re-
sponsibility for safety of self and others
rests in the hands of the driver.
cTire type and condition of tires may also
affect braking effectiveness.
cWhen replacing tires, install the speci-
fied size of tires on all four wheels.cWhen installing a spare tire, make sure
it is the proper size and type as speci-
fied on the tire placard. For tire placard
location information, refer to “Tire plac-
ard” in the “Technical and consumer
information” section of this manual.
cRefer to “Wheels and tires” in the
“Maintenance and do-it-yourself” sec-
tion of this manual.
FREEING A FROZEN DOOR LOCK
To prevent a door lock from freezing, apply de-
icer through the key hole. If the lock becomes
frozen, heat the key before inserting it into the key
hole.
ANTI-FREEZE
In the winter when it is anticipated that the tem-
perature will drop below 32°F (0°C) , check the
anti-freeze to assure proper winter protection.
For details, see ‘‘Engine cooling system’’ in the
‘‘Maintenance and do-it-yourself’’ section of this
manual.
BATTERY
If the battery is not fully charged during extremely
cold weather conditions, the battery fluid may
freeze and damage the battery. To maintain maxi-
mum efficiency, the battery should be checked
regularly. For details, see ‘‘Battery’’ in the ‘‘Main-
tenance and do-it-yourself’’ section of this
manual.
DRAINING OF COOLANT WATER
If the vehicle is to be left outside without anti-
freeze, drain the cooling system, including the
engine block. Refill before operating the vehicle.
COLD WEATHER DRIVING
5-20Starting and driving
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cWhenever working on or near a battery,
always wear suitable eye protectors (for
example, goggles or industrial safety
spectacles) and remove rings, metal
bands, or any other jewelry. Do not lean
over the battery when jump starting.
cDo not attempt to jump start a frozen
battery. It could explode and cause se-
rious injury.
cYour vehicle has an automatic engine
cooling fan. It could come on at any
time. Keep hands and other objects
away from it.
WARNING
Always follow the instructions below.
Failure to do so could result in damage to
the charging system and cause personal
injury.
1. If the booster battery is in another vehicle,
position the two vehicles to bring their bat-
teries near each other.
Do not allow the two vehicles to touch.2. Apply the parking brake. Move the shift lever
to N (Neutral) (manual transmission) or to P
(Park) (automatic transmission) . Switch off
all unnecessary electrical systems (lights,
heater, air conditioner, etc.) .
3. Remove vent caps on the battery (if so
equipped) . Cover the battery with an old
cloth to reduce explosion hazard.
4. Connect jumper cables in the sequence il-
lustrated (
sA,sB,sC,sD).
WCE0054
6-8In case of emergency
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