1999 NISSAN SENTRA cooling

WARNING
cThe air conditioner cooling function
operates only when the engine is
running.
cDo not leave children, unreliable
adults, or pets alone in your vehicle.
On hot, sunny days, temperatures in
a closed vehicle could quickly be-
come high enough to cause severe
or possibly fatal injuries to people or
animals.
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 air con-
ditioner controls should not be done
while driving, in order that full atten-
tion may be given to the driving
operation.
CONTROLS
Fan control dial
This dial turns the fan on and off, and
controls fan speed.
Air flow control dial
This dial allows you to select the air flow
outlets.
Ð Air flows from center and side
ventilators.
Ð Air flows from center and side
ventilators and foot outlets.
Ð Air flows mainly from foot outlets.
Ð Air flows from defroster outlets
and foot outlets.
Ð Air flows mainly from defroster
outlets.
The air flow control dial also has intermedi-
ate positions which allow the air flow to be
distributed between two of the icon posi-
tions on the air flow control dial.
Temperature control dial
This dial allows you to adjust the tempera-
ture of the outlet air.
AHA1032
HEATER AND AIR
CONDITIONER
Heater, air conditioner and audio systems4-3
ZX

Air recirculation button
(if so equipped)
NOTE:
The air recirculation feature is available
only on those vehicles equipped with air
conditioning.
OFF position (indicator light off):
Outside air is drawn into the passenger
compartment and distributed through the
selected outlets.
Use the OFF position for normal heater or
air conditioner operation.
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 avoid traffic fumes.
cfor maximum cooling when using the air
conditioner.
Air conditioner button
(if so equipped)
Start the engine, move the fan control dial to
the desired (one to four) position, and push
the air conditioner button to turn on the air
conditioner. The indicator light comes on
when the air conditioner is operating. To
turn off the air conditioner, push the button
again.
The air conditioner cooling function op-
erates only when the engine is running.
HEATER OPERATION
Heating
This mode is used to direct hot air mainly
from the floor outlets. A small amount of air
also flows from the defrost outlets.
1. Push the
button (if so equipped) to
the off position for normal heating.
2. Move the air control dial to the
po-
sition.
3. Move the fan control dial to the desired
position.
4. Move the temperature control dial to thedesired position between the middle and
the hot position.
Ventilation
This mode directs outside air from the side
and center vents.
1. Push the
button (if so equipped) to
the off position.
2. Move the air control dial to the
po-
sition.
3. Move the fan control dial to the desired
position.
4. Move the temperature control dial to the
desired position.
Defrosting or defogging
This mode is used to defrost/defog the
windows.
1. Move the air control dial to the
po-
sition.
cWhen the
position is selected the
function automatically cancels.
Outside air is drawn into the passenger
compartment to improve the defogging
performance.
4-4Heater, air conditioner and audio systems
ZX

2. Move the fan control dial to the desired
position.
3. Move the temperature control dial to the
desired position between the middle and
the hot position.
cIf it is difficult to defog the windshield
glass, turn the air conditioner on (if so
equipped). This helps dehumidify the air.
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 temperature.
1. Push the
button (if so equipped) to
the off position.
2. Move the air control dial to the
po-
sition.
3. Move the fan control dial to the desired
position.
4. Move the temperature control dial to the
the desired position.
Heating and defogging
This mode heats the interior and defogs the
windshield.
1. Move the air control dial to the
po-
sition.
cWhen the
position is selected the
function automatically cancels.
Outside air is drawn into the passenger
compartment to improve the defogging
performance.
2. Move the fan control dial to the desired
position.
3. Move the temperature control dial to the
desired position between the middle and
the hot position.
Operating tips
Clear snow and ice from the wiper
blades and air inlet in front of the wind-
shield. This improves heater operation.
AIR CONDITIONER OPERATION
(if so equipped)
Start the engine, move the fan control dial to
the desired (one to four) position, and push
in the air conditioner button to activate theair conditioner. When the air conditioner is
on, cooling and dehumidifying 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 dehumidify
the air.
1. Push the
button to the off position.
2. Move the air control dial to the
po-
sition.
3. Move the fan control dial to the desired
position.
4. Push on the air conditioner button. The
indicator light comes on.
5. Move the temperature control dial to the
desired position.
Heater, air conditioner and audio systems
4-5
ZX

For quick cooling when the outside tem-
perature is high, push thebutton to the
ON position. Be sure to return the air recir-
culation button to the OFF position for nor-
mal cooling.
Dehumidified heating
This mode is used to heat and dehumidify
the air.
1. Push the
button to the off position.
2. Move the air control dial to the
po-
sition.
3. Move the fan control dial to the desired
position.
4. Push on the air conditioner button. The
indicator light comes on.
5. Move the temperature control dial to the
desired position.
Dehumidified defogging
This mode is used to defog the windows
and dehumidify the air.
1. Move the air control dial to the
po-
sition.
cWhen the
position is selected thefunction automatically cancels.Outside air is drawn into the passenger
compartment to improve the defogging
performance.
2. Move the fan control dial to the desired
position.
3. Push on the air conditioner button. The
indicator light comes on.
4. Move the temperature control dial to the
desired position.
Operating tips
cKeep windows and sunroof closed while
the air conditioner is in operation.
cAfter parking in the sun, drive for two or
three minutes with the windows open to
vent hot air from the passenger compart-
ment. Then, close the windows. This
allows the air conditioner to cool the
interior more quickly.
cThe air conditioning system should be
operated for approximately ten min-
utes at least once a month. This helps
prevent 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 your
vehicle 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 QUICK
heating, cooling or defrosting.The air recir-
culation switch should always be in the
OFF position for heating and defrosting.
4-6Heater, air conditioner and audio systems
ZX

WARNING
c
The anti-lock brake system is a so-
phisticated device, but it cannot pre-
vent accidents resulting from care-
less or dangerous driving tech-
niques. It can help maintain vehicle
control during braking on slippery
surfaces, but the stopping distance
on slippery surfaces will be longer
than on normal surfaces, even with
the anti-lock system. Stopping dis-
tances may also be longer on rough,
gravel or snow covered roads, or if
you are using tire chains. Always
maintain a safe distance from the ve-
hicle in front of you. Ultimately, the
responsibility for safety of self and
others rests in the hands of the driver.
cTire type and condition may also
affect braking effectiveness.
cWhen replacing tires, install the
specified size of tires on all four
wheels.c
When installing a spare tire, make
sure it is the proper size and type as
specified on the tire placard. For tire
placard location information, refer to
``Tire placard'' in the Owner's Manual
index.
cRefer to ``Wheels and tires'' in the
``Do-it-yourself'' section of this
manual.
Freeing a frozen door lock
To prevent a door lock from freezing, apply
de-icer or glycerin through the key hole. If
the lock becomes frozen, heat the key be-
fore inserting it in the key hole.
Anti-freeze
In the winter when it is anticipated that the
temperature will drop below 32ÉF (0ÉC),
check the anti-freeze (ethylene glycol base)
to assure proper winter protection. For de-
tails, see ``Engine cooling system'' in the
``Do-it-yourself'' section of this manual.
Battery
If the battery is not fully charged during
extremely cold weather conditions, the bat-
tery fluid may freeze and damage the bat-
tery. To maintain maximum efficiency, the
battery should be checked regularly. For
details, see ``Battery'' in the ``Do-it-yourself''
section of this manual.
Draining of coolant
If the vehicle is to be left outside without
anti-freeze, drain the cooling system by
opening the drain valves located under the
radiator and on the engine block. Refill
COLD WEATHER DRIVING
Starting and driving5-19
ZX

To start your engine with a booster battery,
the instructions and precautions below must
be followed.
WARNING
cIf done incorrectly, jump starting can
lead to a battery explosion, resulting
in severe injury or death. It could
also damage your vehicle.
cExplosive hydrogen gas is always
present in the vicinity of the battery.
Keep all sparks and flames away
from the battery.
cDo not allow battery fluid to come
into contact with eyes, skin, cloth or
painted surfaces. Battery fluid is a
corrosive sulfuric acid solution
which can cause severe burns. If the
fluid should come into contact with
anything, immediately flush the con-
tacted area with water.
cKeep battery out of the reach of
children.
cThe booster battery must be rated at
12 volts. Use of an improperly rated
battery can damage your vehicle.cWhenever working on or near a bat-
tery, always wear suitable eye pro-
tectors (e.g., 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
serious injury.
cYour vehicle has an automatic en-
gine cooling fan. It could come on at
any time. Keep hands and other ob-
jects away from it.
JUMP STARTING
6-8In case of emergency
ZX

CAUTION
cAutomatic transmission models can-
not be push started. This may cause
transmission damage.
cThree-way catalytic converter
equipped models should not be
started by pushing since the three
way catalyst may be damaged.
cNever try to start the vehicle by tow-
ing it; when the engine starts, the
forward surge could cause the ve-
hicle to collide with the tow vehicle.If your vehicle is overheating (indicated by
an extremely high temperature gauge read-
ing), or if you feel a lack of engine power,
detect abnormal noise, etc., take the follow-
ing steps.
WARNING
cDo not continue to drive if your ve-
hicle overheats. Doing so could
cause a vehicle fire.
cTo avoid the danger of being
scalded, never remove the radiator
cap while the engine is still hot.
When the radiator cap is removed,
pressurized hot water will spurt out,
possibly causing serious injury.
cDo not open the hood if steam is
coming out.
1. Move the vehicle safely off the road,
apply the parking brake and move the
shift lever to N (Neutral) (manual trans-
mission) or the shift selector lever to P
(Park) (automatic transmission).
Do not stop the engine.
2. Turn off the air conditioner. Open all the
windows, move the heater or air condi-
tioner temperature control to maximumhot and fan control to high speed.
3. If engine overheating is caused by climb-
ing a long hill on a hot day, run the engine
at a fast idle (approximately 1,500 rpm)
until the temperature gauge indication
returns to normal.
4. Get out of the vehicle. Look and listen for
steam or coolant escaping from the ra-
diator before opening the hood. Wait until
no steam or coolant can be seen before
proceeding.
5. Open the hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. Visually check drive belts for damage or
looseness. Also check if the cooling fan
is running. The radiator hoses and radia-
tor should not leak water. If coolant is
leaking, the water pump belt is missing or
loose, or the cooling fan does not run,
stop the engine.
PUSH STARTING IF YOUR VEHICLE
OVERHEATS
6-10In case of emergency
ZX

NISSAN recommends that your vehicle be
towed with the driving (front) wheels off the
ground as illustrated.
CAUTION
c
Never tow an automatic transmission
model with the rear wheels raised
(with the front wheels on the ground)
as this may cause serious and expen-
sive damage to the transmission. If it
is necessary to tow the vehicle with
the rear wheels raised, always use a
towing dolly under the front wheels.
cIf you have to tow an automatic trans-
mission model with four wheels on
the ground, observe the following re-
stricted towing speeds and distances:
cSpeed: Below 30 MPH (50 km/h)
cDistance: Less than 40 miles (65
km)
c
Never tow an automatic transmis-
sion model from the rear (for ex-
ample, backward) with four wheels
on the ground as this may cause
serious and expensive damage to
the transmission.
VEHICLE RECOVERY (freeing a
stuck vehicle)
cTow chains or cables must be attached
only to the main structual members of the
vehicle.
cPulling devices should be routed so they
do not touch any part of the suspension,
steering, brake or cooling systems.
cAlways pull the cable straight out from
the front or rear of the vehicle. Never pull
the vehicle at an angle.
cPulling devices such as ropes or canvas
straps are not recommended for use in
vehicle towing or recovery.
cStand clear of a stuck vehicle.
ACE0511
CE1052
6-12In case of emergency
ZX