1999 NISSAN ALTIMA heating

WARNING
cThe air conditioner cooling function
operates only when the engine is
running.
c
Do not leave children, unreliable
adults, or pets alone in your vehicle.
On 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.
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 heating or air con-
ditioning controls should not be
done while driving, in order that full
attention 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 buttons
These buttons allow you to select the air
flow outlets.
Ð Air flows from center and side
ventilators.
AHA1001
HEATER AND AIR
CONDITIONER
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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.
Temperature control lever
This lever allows you to adjust the tempera-
ture of the outlet air.
Air recirculation button
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.
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)
This button is provided only on vehicles
equipped with an air conditioner.
Start the engine, move the fan control dial to
the desired (1 to 4) position and push the
A/C button to turn on the air conditioner.
The indicator light comes on when the air
conditioner is operating. To stop the air
conditioner, push the switch again.
The air conditioner cooling function op-
erates only when the engine is running.
HEATER OPERATION
Heating
This mode is used to direct heated air to the
foot outlets. Some air also flows from the
defroster outlets.
1. Push the
button to the off position
for normal heating.
2. Push the
button in.3. Move the fan control dial to the desired
position.
4. Move the temperature control lever to the
desired position between the middle and
the HOT position.
Ventilation
This mode directs outside air to the side and
center ventilators.
1. Push the
button to the off position.
2. Push the
button in.
3. Move the fan control dial to the desired
position.
4. Move the temperature control lever to the
desired position.
Defrosting or defogging
This mode is used to defrost/defog the
windows.
1. Push the
button in.
2. Move the fan control dial to the desired
position.
3. Move the temperature control lever to the
desired position between the middle and
the HOT position.
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cTo quickly remove ice or fog from the
windows, turn on 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 illu-
minate). This dehumidifies the air which
helps defog the windshield. The air recir-
culation mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment which helps de-
fog the windshield.
Bi-level heating/cooling
This mode directs air from the side, center
and foot outlets.
1. Push the
button to the off position.
2. Push the
button in.
3. Move the fan control dial to the desired
position.
4. Move the temperature control lever to the
desired position.
Heating and defogging
This mode heats the interior and defogs the
windshield.1. Push the
button in.
2. Move the fan control dial to the desired
position.
3. Move the temperature control lever to the
desired position between the middle and
the HOT position.
Operating tips
cClear snow and ice from the wiper
blades and air inlet in front of the
windshield. This improves heater op-
eration.
cWhen the
orswitch is selected,
the air recirculation mode automatically
turns off.
Outside air is drawn into the passenger
compartment to improve the defogging
performance.
AIR CONDITIONER OPERATION
(if so equipped)
Start the engine, move the fan control dial to
the desired (1 to 4) position and push in the
A/C 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 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. Push the
button in.
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 lever to the
desired 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
button to the off
position for normal cooling.
Dehumidified heating
This mode is used to heat and dehumidify.
1. Push the
button to the off position.
2. Push the
button in.
Heater, air conditioner and audio systems
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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 lever to the
desired position.
Dehumidified defogging
This mode defogs the windows and dehu-
midifies the air.
1. Push the
button in.
When the
position is selected, the
air conditioner automatically turns on
(however, the indicator light will not illu-
minate). This dehumidifies the air which
helps defog the windshield. The air recir-
culation mode automatically turns off,
allowing outside air to be drawn into the
passenger compartment which helps de-
fog the windshield.
2. Move the fan control dial to the desired
position.
3. Move the temperature control lever to the
desired position.
Outside air is drawn into the passengercompartment to improve the defogging per-
formance.
Operating tips
cKeep the windows and sun roof 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 conditioner 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
exceeds the H (hot) position, turn the air
conditioner off. See ``If your vehicle over-
heats'' in the ``In case of emergency''
section of this owner's manual for addi-
tional information.
AIR FLOW CHARTS
The charts on the following pages show the
switch and lever positions forMAXIMUM
and QUICKheating, cooling, or defrosting.
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increases wear on the brake linings and
pads, and reduces gas mileage.
To help save the brakes and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down
a slope or long grade. Overheated brakes
may reduce braking performance and could
result in loss of vehicle control.
WARNING
c
While driving on a slippery surface,
be careful when braking, accelerating
or downshifting. Abrupt braking or
accelerating could cause the wheels
to skid and result in an accident.
cIf the engine is not running or is
turned off while driving, the power
assist for the brakes will not work.
Braking will be harder.The anti-lock brake system installed in
some models controls the brakes at each
wheel so the wheels do not lock when
braking abruptly or when braking on slip-
pery surfaces. The system detects the rota-
tion speed at each wheel and varies the
brake fluid pressure to prevent each wheel
from locking and sliding. By preventing
wheel lockup, the system helps the driver
maintain steering control and helps to mini-
mize swerving and spinning on slippery
surfaces.
Using the System
Depress the brake pedal and hold it down.
WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping dis-
tances.
Normal operation
The anti-lock brake system does not oper-
ate at speeds below 3 to 6 MPH (5 to 10
km/h). The speeds vary according to road
conditions. When the anti-lock system
senses that one or more wheels are close to
locking up, the actuator (under the hood)rapidly applies and releases hydraulic pres-
sure (like pumping the brakes very quickly).
While the actuator is working, you may feel
a pulsation in the brake pedal and hear a
noise or vibration from the actuator under
the hood. This is normal and indicates that
the anti-lock system is working properly.
However, the pulsation may indicate that
road conditions are hazardous and extra
care is required while driving.
Self-test feature
The anti-lock brake system is sophisticated,
with electronic sensors, electric pumps, and
hydraulic solenoids controlled by a com-
puter. The computer has a built-in diagnos-
tic feature that tests the system each time
you start the engine and move the vehicle at
a low speed in forward or reverse. When the
self-test occurs, you may hear a ``clunk''
noise and/or feel a pulsation in the brake
pedal. This is normal and is not an indica-
tion of any malfunction. If the computer
senses any malfunction, it switches the anti-
lock brake system OFF and turns on the
ABS brake warning light in the dashboard.
The brake system then operates normally,
but without anti-lock assistance.
If the light comes on during the self-test or
ANTI-LOCK BRAKE SYSTEM
(ABS) (if so equipped)
5-18Starting and driving
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cMake sure that cables do not touch
moving parts in the engine compart-
ment and that clamps do not contact
any other metal.
5. Start the engine of the booster vehicle
and let it run for a few minutes.
6. Keep the engine speed of the booster
vehicle at about 2,000 rpm, and start the
engine of the vehicle being jump started.
CAUTION
Do not keep starter motor engaged for
more than 10 seconds. If the engine
does not start right away, turn the key
off and wait 3 to 4 seconds before
trying again.
7. After starting the engine, carefully dis-
connect the negative cable and then the
positive cable.
8. Replace the vent caps (if so equipped).
Be sure to dispose of the cloth used to
cover the vent holes as it may be con-
taminated with corrosive acid.
CAUTION
cAutomatic transmission models can-
not be push started. This may cause
transmission damage.
cThree way catalyst 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 reading),
or if you feel a lack of engine power, detect
abnormal noise, etc., take the following 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 to P (Park) (automatic trans-
mission).
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 maximum
hot and fan control to high speed.
PUSH STARTING IF YOUR VEHICLE
OVERHEATS
In case of emergency6-9
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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 engine 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.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or to get caught in, the running
fan, belts, or fan motor.
The fan motor can start at any time
when the coolant temperature is high.
7. After the engine cools down, check the
coolant level in the reservoir tank with the
engine running. Add coolant to the res-
ervoir tank if necessary. Have your ve-
hicle repaired at an authorized NISSAN
dealer.When towing your vehicle, U.S. States,
Canadian Provinces and local regulations
for towing must be followed. Incorrect tow-
ing equipment could damage your vehicle.
Towing instructions are available from an
authorized NISSAN dealer. Local service
operators will generally be familiar with the
applicable laws and procedures for towing.
To assure proper towing and to prevent
accidental damage to your vehicle, NISSAN
recommends that you have a service opera-
tor tow your vehicle. It is advisable to have
the service operator carefully read the fol-
lowing precautions:
WARNING
cNever ride in a vehicle that is being
towed.
cNever get under your vehicle after it
has been lifted by a tow truck.
CAUTION
cWhen towing, make sure that the
transmission, axles, steering system
and powertrain are in working con-
dition. If any unit is damaged, dollies
must be used.
TOW TRUCK TOWING
6-10In case of emergency
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If the cooling system frequently requires
coolant, have it checked by an autho-
rized NISSAN dealer.
CHANGING ENGINE COOLANT
cMajor cooling system repairs should be
performed by an authorized NISSAN
dealer. The service procedures can be
found in an appropriate NISSAN Service
Manual.cImproper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
cTo avoid the danger of being
scalded, never change the coolant
when the engine is hot.
cNever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
Perform the following procedure to open the
heater water cock:
1. Turn the ignition switch ON and set the
temperature control lever to the maxi-
mum hot position. Wait 10 seconds, then
turn the switch OFF.
2. Open the radiator drain plug. Open the
drain plug on the engine water pipe.
3. Open the radiator cap to drain the cool-
ant.
4. Flush the cooling system by running
fresh water through the radiator.
5. Close the radiator drain plug and the
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